chore(plugins): rebuild components for set-file-note

feat(plugins): notes after file names in the project tree (API 1.7)
Tree decorations could only carry a badge of at most two characters and a tooltip, so a plugin could not label files and folders with a visible description. decorations.set-file-note shows one line of muted text (at most 200 characters, optional tooltip) after a file or folder name, as the project tree already does for a root's VCS branch. It replaces that tree set's item for the file, shares the tree-set limits, and is cleared with clear-file. The SDK wraps it as host::set_file_note with a mock.
2026-11-14 13:45:49 +02:00 · 2026-11-13 14:15:46 +08:00 · 2026-11-13 14:08:19 +08:00
@@ -7,7 +7,7 @@ BASEDPYRIGHT=1.40.2
 RUFF=0.17.3
 GOPLS=v0.24.0
 JDTLS=1.63.0-202610191322
-KOTLIN_LSP=271.2085.0
+KOTLIN_LSP=263.7084.0
 GRADLE=8.14.3
 INTELEPHENSE=1.18.5
 # The JDK projects compile against (JAVA_HOME): library navigation opens its sources.
@@ -119,7 +119,7 @@ jobs:
      - run: cargo test --locked -p ide-host --test language_smoke --no-run
      - run: cargo test --locked -p ide-host --test language_smoke -- --ignored --exact ${{ matrix.language }}
      - if: matrix.language == 'java'
-        run: cargo test --locked -p ide-host --test project_smoke -- --ignored --exact maven_sync jdk maven_launch_classpath_uses_the_runner_jdk_classifier
+        run: cargo test --locked -p ide-host --test project_smoke -- --ignored --exact maven_sync jdk
      - if: matrix.language == 'kotlin'
        run: cargo test --locked -p ide-host --test project_smoke -- --ignored --exact gradle_sync
      - if: matrix.language == 'python'
@@ -78,7 +78,7 @@ jobs:
      - uses: dtolnay/rust-toolchain@stable
        with: { targets: "${{ matrix.target }}" }
      - uses: Swatinem/rust-cache@v2
-        with: { key: "${{ matrix.target }}", cache-on-failure: true }
+        with: { key: "${{ matrix.target }}" }
      - name: Linux deps
        if: runner.os == 'Linux'
        run: |
@@ -181,7 +181,7 @@ jobs:
      - uses: dtolnay/rust-toolchain@stable
        with: { targets: "${{ matrix.target }}" }
      - uses: Swatinem/rust-cache@v2
-        with: { key: "server-${{ matrix.target }}", cache-on-failure: true }
+        with: { key: "server-${{ matrix.target }}" }
      - name: musl toolchain
        if: runner.os == 'Linux'
        run: sudo apt-get update && sudo apt-get install -y musl-tools
@@ -4144,7 +4144,7 @@ checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"

 [[package]]
 name = "ide-agent"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dunce",
 "encoding_rs",
@@ -4168,7 +4168,7 @@ dependencies = [

 [[package]]
 name = "ide-analysis"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ast-grep-core",
 "ide-core",
@@ -4182,7 +4182,7 @@ dependencies = [

 [[package]]
 name = "ide-android"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "serde",
@@ -4193,7 +4193,7 @@ dependencies = [

 [[package]]
 name = "ide-build"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "blake3",
 "chardetng",
@@ -4211,7 +4211,7 @@ dependencies = [

 [[package]]
 name = "ide-cli"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dirs 6.0.0",
 "serde",
@@ -4225,7 +4225,7 @@ dependencies = [

 [[package]]
 name = "ide-clipboard"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "gtk",
 "objc2 0.6.5",
@@ -4235,7 +4235,7 @@ dependencies = [

 [[package]]
 name = "ide-core"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dunce",
 "encoding_rs",
@@ -4252,7 +4252,7 @@ dependencies = [

 [[package]]
 name = "ide-coverage"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "ide-run",
@@ -4266,7 +4266,7 @@ dependencies = [

 [[package]]
 name = "ide-dap"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "futures",
 "ide-core",
@@ -4288,12 +4288,11 @@ dependencies = [
 "tokio",
 "tracing",
 "tracing-subscriber",
- "windows-sys 0.61.2",
 ]

 [[package]]
 name = "ide-db"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "base64 0.22.1",
 "bb8",
@@ -4329,7 +4328,7 @@ dependencies = [

 [[package]]
 name = "ide-docker"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "serde",
@@ -4342,7 +4341,7 @@ dependencies = [

 [[package]]
 name = "ide-extension"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "base64 0.22.1",
 "blake3",
@@ -4363,7 +4362,7 @@ dependencies = [

 [[package]]
 name = "ide-fonts"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "objc2-core-foundation",
 "objc2-core-text",
@@ -4375,7 +4374,7 @@ dependencies = [

 [[package]]
 name = "ide-github"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "ide-vcs",
@@ -4388,7 +4387,7 @@ dependencies = [

 [[package]]
 name = "ide-heap"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "criterion",
 "ide-core",
@@ -4406,7 +4405,7 @@ dependencies = [

 [[package]]
 name = "ide-host"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "base64 0.22.1",
 "blake3",
@@ -4477,7 +4476,7 @@ dependencies = [

 [[package]]
 name = "ide-http"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "ide-vfs",
@@ -4496,7 +4495,7 @@ dependencies = [

 [[package]]
 name = "ide-index"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "blake3",
 "criterion",
@@ -4518,7 +4517,7 @@ dependencies = [

 [[package]]
 name = "ide-jdwp"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-jvm-inspect",
 "proptest",
@@ -4530,7 +4529,7 @@ dependencies = [

 [[package]]
 name = "ide-jsonrpc"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "encoding_rs",
 "futures",
@@ -4547,7 +4546,7 @@ dependencies = [

 [[package]]
 name = "ide-jvm-attach"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "libc",
 "tempfile",
@@ -4556,7 +4555,7 @@ dependencies = [

 [[package]]
 name = "ide-jvm-inspect"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "futures",
 "serde",
@@ -4567,7 +4566,7 @@ dependencies = [

 [[package]]
 name = "ide-language"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "blake3",
 "criterion",
@@ -4624,7 +4623,7 @@ dependencies = [

 [[package]]
 name = "ide-lsp"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dunce",
 "encoding_rs",
@@ -4652,7 +4651,7 @@ dependencies = [

 [[package]]
 name = "ide-mcp"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "bytes",
 "dunce",
@@ -4671,7 +4670,7 @@ dependencies = [

 [[package]]
 name = "ide-notebook"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "futures",
 "ide-core",
@@ -4694,7 +4693,7 @@ dependencies = [

 [[package]]
 name = "ide-plugin"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "blake3",
 "dunce",
@@ -4717,7 +4716,7 @@ dependencies = [

 [[package]]
 name = "ide-profiler"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "ide-jvm-attach",
@@ -4731,7 +4730,7 @@ dependencies = [

 [[package]]
 name = "ide-remote"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dunce",
 "futures",
@@ -4751,7 +4750,7 @@ dependencies = [

 [[package]]
 name = "ide-run"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dunce",
 "encoding_rs",
@@ -4775,7 +4774,7 @@ dependencies = [

 [[package]]
 name = "ide-scaffold"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "ide-tools",
@@ -4791,7 +4790,7 @@ dependencies = [

 [[package]]
 name = "ide-sdk"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dunce",
 "ide-core",
@@ -4812,7 +4811,7 @@ dependencies = [

 [[package]]
 name = "ide-search"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "criterion",
 "encoding_rs",
@@ -4833,7 +4832,7 @@ dependencies = [

 [[package]]
 name = "ide-spell"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "parking_lot",
@@ -4846,7 +4845,7 @@ dependencies = [

 [[package]]
 name = "ide-ssh"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dirs 6.0.0",
 "flate2",
@@ -4871,7 +4870,7 @@ dependencies = [

 [[package]]
 name = "ide-syntax"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "ide-language",
@@ -4886,7 +4885,7 @@ dependencies = [

 [[package]]
 name = "ide-terminal"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "ide-core",
 "libc",
@@ -4899,7 +4898,7 @@ dependencies = [

 [[package]]
 name = "ide-text"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "criterion",
 "ide-core",
@@ -4912,7 +4911,7 @@ dependencies = [

 [[package]]
 name = "ide-tools"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "flate2",
 "hex",
@@ -4933,7 +4932,7 @@ dependencies = [

 [[package]]
 name = "ide-vcs"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "blake3",
 "dunce",
@@ -4954,7 +4953,7 @@ dependencies = [

 [[package]]
 name = "ide-vfs"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "chardetng",
 "dunce",
@@ -4978,7 +4977,7 @@ dependencies = [

 [[package]]
 name = "ide-web"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "dirs 6.0.0",
 "ide-core",
@@ -4994,7 +4993,7 @@ dependencies = [

 [[package]]
 name = "ide-workspace"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "blake3",
 "dunce",
@@ -6595,7 +6594,7 @@ dependencies = [

 [[package]]
 name = "openidea"
-version = "0.1.44"
+version = "0.1.43"
 dependencies = [
 "base64 0.22.1",
 "blake3",
@@ -5,7 +5,7 @@ members = ["crates/*", "src-tauri"]
 exclude = ["sdk", "plugins"]

 [workspace.package]
-version = "0.1.44"
+version = "0.1.43"
 edition = "2024"
 rust-version = "1.96"
 license = "Apache-2.0"
@@ -9,10 +9,6 @@
  The IDE you know, rebuilt in Rust.
 </p>

-<p align="center">
-  English · <a href="README.zh-CN.md">简体中文</a>
-</p>
-
 <p align="center">
  <a href="https://github.com/l0ng-ai/openidea/releases/latest"><b>Download</b></a>
  &nbsp;·&nbsp;
@@ -23,6 +19,8 @@
  <a href="#plugins">Plugins</a>
  &nbsp;·&nbsp;
  <a href="#community">Community</a>
+  &nbsp;·&nbsp;
+  <a href="#sponsor">Sponsor</a>
 </p>

 https://github.com/user-attachments/assets/234dd54c-1255-4b3a-b35c-533d78d737c0
@@ -72,6 +70,17 @@ the [official plugins](plugins/official). The plugin API is still a preview.

 - Contributing: see [CONTRIBUTING.md](CONTRIBUTING.md) and the [contributor docs](https://openidea.sh/en/contribute/setup).

+## Sponsor
+
+If OpenIDEA saves you time, you can support its development with Alipay or WeChat Pay.
+
+<table>
+  <tr>
+    <td align="center"><img src=".github/assets/sponsor-alipay.png" alt="Alipay QR code" width="200"><br>Alipay</td>
+    <td align="center"><img src=".github/assets/sponsor-wechat.png" alt="WeChat Pay QR code" width="200"><br>WeChat Pay</td>
+  </tr>
+</table>
+
 ## License

 [Apache 2.0](LICENSE). Bundled third-party assets are listed in [`THIRD_PARTY_LICENSES.md`](THIRD_PARTY_LICENSES.md).
@@ -1,88 +0,0 @@
-<p align="center">
-  <picture>
-    <source media="(prefers-color-scheme: dark)" srcset="src-tauri/icons/source/openidea-wordmark-dark.svg">
-    <img src="src-tauri/icons/source/openidea-wordmark.svg" alt="OpenIDEA" height="56">
-  </picture>
-</p>
-
-<p align="center">
-  你熟悉的 IDE，用 Rust 重新打造。
-</p>
-
-<p align="center">
-  <a href="README.md">English</a> · 简体中文
-</p>
-
-<p align="center">
-  <a href="https://github.com/l0ng-ai/openidea/releases/latest"><b>下载</b></a>
-  &nbsp;·&nbsp;
-  <a href="https://openidea.sh/zh">文档</a>
-  &nbsp;·&nbsp;
-  <a href="#性能对比">性能对比</a>
-  &nbsp;·&nbsp;
-  <a href="#插件">插件</a>
-  &nbsp;·&nbsp;
-  <a href="#社区">社区</a>
-  &nbsp;·&nbsp;
-  <a href="#赞助">赞助</a>
-</p>
-
-https://github.com/user-attachments/assets/234dd54c-1255-4b3a-b35c-533d78d737c0
-
-OpenIDEA 把 IntelliJ IDEA 的使用方式（快捷键、工具窗口、随处搜索的习惯）带到一个以 Rust
-为核心的原生桌面应用里。
-
-编辑器、代码洞察、调试器、Git、终端、数据库客户端和 HTTP 客户端，支持 60 多种语言。
-提供 macOS、Windows 和 Linux 版本。
-
-## 性能对比
-
-在缓存已预热的情况下打开 [freqtrade](https://github.com/freqtrade/freqtrade)（Python，约 770 个文件），
-取 5 次运行的中位数：
-
-|                       | OpenIDEA       | IntelliJ IDEA 2026.2.3 |
-| --------------------- | -------------- | ---------------------- |
-| 显示项目窗口          | **0.9 s**      | 3.1 s                  |
-| 就绪（CPU 平稳）      | **1.1 s**      | 13.2 s                 |
-| 内存（USS，所有进程） | **169 MB**     | 2011 MB                |
-| 就绪前消耗的 CPU 时间 | **2.4 s**      | 47.9 s                 |
-| 空闲 CPU              | 单核的 **4 %** | 单核的 7 %             |
-| 退出                  | **0.3 s**      | 5.9 s                  |
-
-测试使用 `main` 分支的 OpenIDEA release 构建，以及默认设置和插件的 IDEA，环境为 Windows 11、
-32 核 AMD、62 GB 内存。IDEA 对 Python 的分析更深入，所以两边的“就绪”并不代表完成了同样多的工作。
-两者都以相同方式从外部测量：可以用 [`perf/compare`](perf/compare) 在自己的机器和项目上复现。
-
-## 插件
-
-插件可以添加操作、补全、快速修复、工具窗口、自定义编辑器、主题、文件图标和语言。插件以沙箱化的
-WebAssembly 组件运行；主题、图标主题和语言无需编写代码。
-
-在“设置 › 插件”中安装，或用 `openidea-plugin new` 创建自己的插件：参见
-[编写 OpenIDEA 插件](https://openidea.sh/zh/plugins)和[官方插件](plugins/official)。插件 API 目前仍是预览版。
-
-## 社区
-
- [Discord](https://discord.gg/2Zy4yn7gP)：提问、反馈和版本发布消息。
- 微信群，扫码加入：
-
-  <img src=".github/assets/wechat-group.png" alt="微信群二维码" width="200">
-
- 参与贡献：参见 [CONTRIBUTING.md](CONTRIBUTING.md) 和[贡献者文档](https://openidea.sh/zh/contribute/setup)。
-
-## 赞助
-
-如果 OpenIDEA 帮你节省了时间，可以通过支付宝或微信支付支持它的开发。
-
-<table>
-  <tr>
-    <td align="center"><img src=".github/assets/sponsor-alipay.png" alt="支付宝收款码" width="200"><br>支付宝</td>
-    <td align="center"><img src=".github/assets/sponsor-wechat.png" alt="微信支付收款码" width="200"><br>微信支付</td>
-  </tr>
-</table>
-
-## 许可证
-
-[Apache 2.0](LICENSE)。随附的第三方资源列在 [`THIRD_PARTY_LICENSES.md`](THIRD_PARTY_LICENSES.md) 中。
-
-<sub>与 JetBrains 无关联。IntelliJ IDEA 是 JetBrains s.r.o. 的商标。</sub>
@@ -3,13 +3,11 @@
 //!
 //! Only the native providers keep transcripts on disk in a readable form: Claude Code
 //! (`<config>/projects/*/<id>.jsonl`, see `native::claude::history`) and Codex
-//! (`<home>/.codex/sessions/**`, rollout files with a `session_meta` line, named in
-//! `<home>/.codex/session_index.jsonl`).
+//! (`<home>/.codex/sessions/**`, rollout files with a `session_meta` line).

 use super::native::claude::history;
 use serde::Serialize;
 use specta::Type;
-use std::collections::HashMap;
 use std::io::BufRead;
 use std::path::{Path, PathBuf};

@@ -208,39 +206,11 @@ fn rollout_files(dir: &Path, depth: usize, out: &mut Vec<PathBuf>) {
    }
 }

-/// Thread names Codex keeps in `session_index.jsonl`, by thread id. A rename adds a line,
-/// so the last one wins.
-fn codex_names(codex_home: &Path) -> HashMap<String, String> {
-    let Ok(file) = std::fs::File::open(codex_home.join("session_index.jsonl")) else { return HashMap::new() };
-    let mut names = HashMap::new();
-    for line in std::io::BufReader::new(file).lines() {
-        let Ok(line) = line else { break };
-        let Ok(v) = serde_json::from_str::<serde_json::Value>(&line) else { continue };
-        let id = v.get("id").and_then(serde_json::Value::as_str);
-        let name = v.get("thread_name").and_then(serde_json::Value::as_str).map(str::trim).filter(|n| !n.is_empty());
-        if let (Some(id), Some(name)) = (id, name) {
-            names.insert(id.to_owned(), name.to_owned());
-        }
-    }
-    names
-}
-
-/// Codex sessions of the project at `root`: `<home>/.codex/sessions/**`, titled by their
-/// thread names, else by their first prompts.
+/// Codex sessions of the project at `root`: `<home>/.codex/sessions/**`.
 pub fn codex_sessions(codex_home: &Path, root: &Path) -> Vec<ExternalSession> {
    let mut files = Vec::new();
    rollout_files(&codex_home.join("sessions"), 4, &mut files);
-    let mut sessions: Vec<ExternalSession> =
-        files.iter().filter_map(|p| codex_file(p)).filter(|s| in_project(s.cwd.as_deref(), root)).collect();
-    if !sessions.is_empty() {
-        let names = codex_names(codex_home);
-        for s in &mut sessions {
-            if let Some(name) = names.get(&s.session_id) {
-                s.title = short(name);
-            }
-        }
-    }
-    sessions
+    files.iter().filter_map(|p| codex_file(p)).filter(|s| in_project(s.cwd.as_deref(), root)).collect()
 }

 #[cfg(test)]
@@ -312,16 +282,6 @@ mod tests {
        assert_eq!((s.provider.as_str(), s.session_id.as_str()), ("codex", "thread-1"));
        assert_eq!(s.title, "add tests");
        assert_eq!(s.cwd.as_deref(), Some("/work/app"));
-
-        write(
-            &tmp.path().join("session_index.jsonl"),
-            &[
-                json!({"id": "thread-1", "thread_name": "Add tests", "updated_at": "t1"}),
-                json!({"id": "thread-2", "thread_name": "Other", "updated_at": "t1"}),
-                json!({"id": "thread-1", "thread_name": "Add parser tests", "updated_at": "t2"}),
-            ],
-        );
-        assert_eq!(codex_sessions(tmp.path(), Path::new("/work"))[0].title, "Add parser tests");
    }

    #[test]
@@ -1097,8 +1097,6 @@ impl AgentManager {
                title_renamed: s.title_renamed,
            }
        };
-        // Copying may have started the source's agent: it stops again once idle.
-        source.release_when_idle();
        let task = Task::restore(file, self.shared.clone());
        self.tasks.write().insert(task.id.clone(), task.clone());
        task.persist();
@@ -1168,8 +1166,6 @@ impl AgentManager {
        task.persist();
        self.shared.emit(AgentEvent::Truncated { task: id.to_owned(), length: cut as u32 });
        task.emit_task();
-        // Undoing may have started the agent: it stops again once idle.
-        task.release_when_idle();
        Ok(first)
    }

@@ -158,42 +158,6 @@ pub(crate) fn title(entries: &[Value]) -> Option<String> {
        .map(str::to_owned)
 }

-/// Claude Code titles a session from the last 1000 characters of its text.
-const TITLE_SOURCE_CHARS: usize = 1000;
-/// Below this Claude Code gives no title without asking the model.
-const TITLE_SOURCE_MIN_CHARS: usize = 10;
-
-/// The conversation's own text to title the session after: the prompts and the replies,
-/// without the files attached to the prompts. `None` while there is too little.
-pub(super) fn title_source(entries: &[Value]) -> Option<String> {
-    let mut text = String::new();
-    for e in chain(entries, None) {
-        if !(is_turn_start(e) || kind(e) == "assistant") {
-            continue;
-        }
-        let blocks = match e.pointer("/message/content") {
-            Some(Value::String(s)) => vec![s.as_str()],
-            Some(Value::Array(blocks)) => blocks
-                .iter()
-                .filter(|b| b.get("type").and_then(Value::as_str) == Some("text"))
-                .filter_map(|b| b.get("text").and_then(Value::as_str))
-                .filter(|t| !t.starts_with("\n<context ref="))
-                .collect(),
-            _ => Vec::new(),
-        };
-        for block in blocks {
-            text.push_str(block);
-            text.push('\n');
-        }
-    }
-    let text = text.trim();
-    let len = text.chars().count();
-    if len < TITLE_SOURCE_MIN_CHARS {
-        return None;
-    }
-    Some(text.chars().skip(len.saturating_sub(TITLE_SOURCE_CHARS)).collect())
-}
-
 #[cfg(test)]
 mod tests {
    use super::*;
@@ -255,29 +219,6 @@ mod tests {
        assert_eq!(cut(&c, 1), Ok(None));
    }

-    #[test]
-    fn titles_come_from_prompts_and_replies() {
-        let mut prompt = user("u1", None, "Fix the login form");
-        prompt["message"]["content"]
-            .as_array_mut()
-            .unwrap()
-            .push(json!({"type": "text", "text": "\n<context ref=\"file:///p/a.rs\">\nfn a() {}\n</context>"}));
-        let entries = vec![
-            prompt,
-            assistant(
-                "a1",
-                "u1",
-                json!([{"type": "thinking", "thinking": "hm"}, {"type": "text", "text": "Done."},
-                    {"type": "tool_use", "id": "t1", "name": "Bash", "input": {}}]),
-            ),
-            json!({"type": "user", "uuid": "r1", "parentUuid": "a1", "message": {"content": [{"type": "tool_result", "tool_use_id": "t1", "content": "out"}]}}),
-        ];
-        assert_eq!(title_source(&entries).as_deref(), Some("Fix the login form\nDone."));
-        assert_eq!(title_source(&[user("u1", None, "hi")]), None);
-        let long = "x".repeat(TITLE_SOURCE_CHARS + 5);
-        assert_eq!(title_source(&[user("u1", None, &long)]).map(|t| t.chars().count()), Some(TITLE_SOURCE_CHARS));
-    }
-
    #[test]
    fn project_directory_names() {
        assert_eq!(escape(Path::new("/private/tmp/a.b/c_d")), "-private-tmp-a-b-c-d");
@@ -191,8 +191,6 @@ struct State {
    limit_resets_ms: Option<f64>,
    terminal_only: Vec<String>,
    titled: bool,
-    /// A title is being read or generated.
-    titling: bool,
 }

 struct Turn {
@@ -367,7 +365,6 @@ impl Shim {
                limit_resets_ms: None,
                terminal_only: Vec::new(),
                titled: false,
-                titling: false,
            }),
            cwd,
            starting: tokio::sync::Mutex::new(()),
@@ -586,12 +583,11 @@ impl Shim {
 impl super::Shim for Shim {
    fn attach(&self, client: Peer) {
        let _ = self.client.set(client.clone());
-        // The client went away: so do the processes. Held until then: the connection drops
-        // its handler (this shim) as it closes, and the sessions would go without stopping.
-        let me = self.me.upgrade();
+        // The client went away: so do the processes.
+        let weak = self.me.clone();
        tokio::spawn(async move {
            client.closed().await;
-            if let Some(me) = me {
+            if let Some(me) = weak.upgrade() {
                me.closed.store(true, Ordering::Release);
                let sessions: Vec<Arc<Session>> = me.sessions.lock().drain().map(|(_, s)| s).collect();
                for s in sessions {
@@ -602,15 +598,6 @@ impl super::Shim for Shim {
    }
 }

-impl Drop for Session {
-    /// A session dropped without being stopped (the shim went away) takes its process along.
-    fn drop(&mut self) {
-        if let Some(p) = self.st.get_mut().proc.take() {
-            p.kill.cancel();
-        }
-    }
-}
-
 impl Session {
    fn shim(&self) -> Option<Arc<Shim>> {
        self.shim.upgrade()
@@ -1061,8 +1048,7 @@ impl Session {
                    } else if matches!(st.start, Start::New { .. }) {
                        st.start = Start::Resume { id: self.id.clone(), at: None };
                    }
-                    read_title = !st.titled && !st.titling;
-                    st.titling |= read_title;
+                    read_title = !st.titled;
                    if let Some(turn) = st.turn.as_ref()
                        && belongs(turn, &msg)
                    {
@@ -1087,29 +1073,13 @@ impl Session {
        }
    }

-    /// Sends the session's title once it has one: the one in its transcript, or else one
-    /// Claude Code is asked for, as it titles no session run the way the Agent SDK runs it.
-    /// Without a title the next turn tries again.
+    /// Sends the title Claude Code gave the session, once it has one.
    fn read_title(self: &Arc<Self>) {
        let me = self.clone();
-        tokio::spawn(async move {
-            let reader = me.clone();
-            let entries = tokio::task::spawn_blocking(move || transcript_entries(&reader)).await.ok().flatten();
-            let mut title = entries.as_deref().and_then(history::title);
-            if title.is_none()
-                && let Some(source) = entries.as_deref().and_then(history::title_source)
-            {
-                title = me.generate_title(source).await;
-            }
-            {
-                let mut st = me.st.lock();
-                st.titling = false;
-                if title.is_none() {
-                    return;
-                }
-                st.titled = true;
-            }
-            if let (Some(title), Some(shim)) = (title, me.shim()) {
+        tokio::task::spawn_blocking(move || {
+            let Some(title) = chain_title(&me) else { return };
+            me.st.lock().titled = true;
+            if let Some(shim) = me.shim() {
                shim.notify(vec![Update {
                    session: me.id.clone(),
                    update: json!({ "sessionUpdate": "session_info_update", "title": title }),
@@ -1118,19 +1088,6 @@ impl Session {
        });
    }

-    /// A title Claude Code generates from `source`, also written to the transcript.
-    async fn generate_title(&self, source: String) -> Option<String> {
-        let proc = self.st.lock().proc.clone()?;
-        let request = json!({ "subtype": "generate_session_title", "description": source, "persist": true });
-        match proc.control(request).await {
-            Ok(r) => r.get("title").and_then(Value::as_str).map(str::trim).filter(|t| !t.is_empty()).map(str::to_owned),
-            Err(e) => {
-                tracing::debug!("generating a claude session title: {e}");
-                None
-            }
-        }
-    }
-
    async fn on_cli_request(self: &Arc<Self>, proc: &Arc<Proc>, msg: Value) {
        let id = msg.get("request_id").and_then(Value::as_str).unwrap_or_default().to_owned();
        let request = msg.get("request").cloned().unwrap_or_default();
@@ -1460,13 +1417,9 @@ fn strings(v: Option<&Value>) -> Vec<String> {

 /// The title in a session's transcript (or that of the session it continues).
 fn chain_title(session: &Session) -> Option<String> {
-    history::title(&transcript_entries(session)?)
-}
-
-fn transcript_entries(session: &Session) -> Option<Vec<Value>> {
    let shim = session.shim()?;
    let path = shim.transcript(&session.cwd, &session.id).filter(|p| p.exists())?;
-    history::read(&path).ok()
+    history::title(&history::read(&path).ok()?)
 }

 fn start_json(start: &Start) -> Value {
@@ -311,8 +311,6 @@ struct Replay {
    sent: Arc<Mutex<Vec<Vec<Value>>>>,
    launched: Mutex<Vec<Vec<String>>>,
    errors: Arc<Mutex<Vec<String>>>,
-    /// Each process's kill token.
-    kills: Mutex<Vec<CancellationToken>>,
 }

 impl Cli for Replay {
@@ -333,7 +331,6 @@ impl Cli for Replay {
        let (shim_in, cli_in) = tokio::io::duplex(1 << 20);
        let (mut cli_out, shim_out) = tokio::io::duplex(1 << 20);
        let kill = CancellationToken::new();
-        self.kills.lock().push(kill.clone());
        let (sent, errors, token) = (self.sent.clone(), self.errors.clone(), kill.clone());
        sent.lock().push(Vec::new());
        tokio::spawn(async move {
@@ -424,18 +421,14 @@ impl Replayed {
    }
 }

-fn replay_cli(processes: Vec<Vec<Frame>>) -> Arc<Replay> {
-    Arc::new(Replay {
+async fn replay(name: &str) -> Replayed {
+    let processes = load_fixture(name);
+    let cli = Arc::new(Replay {
        processes: Mutex::new(processes.into()),
        sent: Arc::default(),
        launched: Mutex::default(),
        errors: Arc::default(),
-        kills: Mutex::default(),
-    })
-}
-
-async fn replay(name: &str) -> Replayed {
-    let cli = replay_cli(load_fixture(name));
+    });
    let (config, cwd) = (tempfile::tempdir().unwrap(), tempfile::tempdir().unwrap());
    let cwd_path = std::fs::canonicalize(cwd.path()).unwrap();
    let h =
@@ -468,69 +461,6 @@ async fn replay_simple() {
    assert_eq!(user["message"]["content"][0]["text"], "Reply with exactly: hello there");
 }

-/// The app closing the connection (an idle task released, archived or deleted) stops the
-/// CLI processes of its sessions, idle ones included.
-#[tokio::test(flavor = "multi_thread")]
-async fn closing_the_connection_stops_the_processes() {
-    let r = replay("simple").await;
-    assert!(r.cli.kills.lock().iter().all(|k| !k.is_cancelled()));
-    r.h.client.kill();
-    let kills = r.cli.kills.lock().clone();
-    tokio::time::timeout(Duration::from_secs(5), async {
-        for k in kills {
-            k.cancelled().await;
-        }
-    })
-    .await
-    .expect("every process was stopped");
-}
-
-#[tokio::test(flavor = "multi_thread")]
-async fn sessions_without_a_title_get_one_generated() {
-    let mut processes = load_fixture("simple");
-    processes[0].extend([
-        Frame::Shim(json!({"type": "control_request", "request_id": "req_3",
-            "request": {"subtype": "generate_session_title"}})),
-        Frame::Cli(json!({"type": "control_response",
-            "response": {"subtype": "success", "request_id": "req_3", "response": {"title": "Say hello"}}})),
-    ]);
-    let cli = replay_cli(processes);
-    let (config, cwd) = (tempfile::tempdir().unwrap(), tempfile::tempdir().unwrap());
-    let cwd_path = std::fs::canonicalize(cwd.path()).unwrap();
-    let h = Harness::connect(
-        cli.clone(),
-        config.path().into(),
-        config.path().join("pending"),
-        cwd_path.clone(),
-        Vec::new(),
-    )
-    .await;
-    let session = h.new_session().await;
-    // The transcript Claude Code writes, without the title it gives sessions in a terminal.
-    let dir = config.path().join("projects").join(history::escape(&cwd_path));
-    std::fs::create_dir_all(&dir).unwrap();
-    let prompt = json!({"type": "user", "uuid": "u1", "parentUuid": null,
-        "message": {"role": "user", "content": "Reply with exactly: hello there"}});
-    std::fs::write(dir.join(format!("{session}.jsonl")), format!("{prompt}\n")).unwrap();
-
-    h.prompt(&session, "Reply with exactly: hello there").await.unwrap();
-    let mut titles = Vec::new();
-    for _ in 0..100 {
-        titles = h.updates(&session, "session_info_update");
-        if !titles.is_empty() {
-            break;
-        }
-        tokio::time::sleep(Duration::from_millis(20)).await;
-    }
-    assert!(cli.errors.lock().is_empty(), "{:?}", cli.errors.lock());
-    assert_eq!(titles.iter().map(|t| t["title"].clone()).collect::<Vec<_>>(), [json!("Say hello")]);
-    let sent = cli.sent.lock()[0].clone();
-    let request =
-        sent.iter().find(|m| m.pointer("/request/subtype") == Some(&json!("generate_session_title"))).unwrap();
-    assert_eq!(request["request"]["description"], "Reply with exactly: hello there");
-    assert_eq!(request["request"]["persist"], true);
-}
-
 #[tokio::test(flavor = "multi_thread")]
 async fn replay_multi_turn() {
    let r = replay("multi_turn").await;
@@ -797,7 +727,6 @@ async fn a_stop_ahead_of_its_prompt_cancels_it() {
        sent: Arc::default(),
        launched: Mutex::default(),
        errors: Arc::default(),
-        kills: Mutex::default(),
    });
    let (dir, cwd) = (tempfile::tempdir().unwrap(), tempfile::tempdir().unwrap());
    let h = Harness::connect(cli.clone(), dir.path().into(), dir.path().join("p"), cwd.path().into(), Vec::new()).await;
@@ -841,7 +770,6 @@ async fn a_failed_turn_reports_its_failure() {
            sent: Arc::default(),
            launched: Mutex::default(),
            errors: Arc::default(),
-            kills: Mutex::default(),
        });
        let (dir, cwd) = (tempfile::tempdir().unwrap(), tempfile::tempdir().unwrap());
        let h =
@@ -28,9 +28,6 @@ const OUTPUT_EVERY: Duration = Duration::from_millis(200);
 const EARLY_CANCEL: Duration = Duration::from_secs(1);
 /// How long the client's connection outlives codex.
 const EXIT_GRACE: Duration = Duration::from_millis(100);
-/// What a thread's name is asked for with, after its first turn.
-const NAME_PROMPT: &str = "Name this conversation for a list of tasks: a short title of at most six words, in the \
-    language the user writes in. Reply with the title only, without quotes or a closing period.";

 pub(crate) fn connect(
    spec: &ProviderSpec,
@@ -129,10 +126,6 @@ struct Thread {
    early_cancel: Option<Instant>,
    /// The latest agent message (a subagent's answer).
    answer: String,
-    /// The thread has a name.
-    named: bool,
-    /// A name is being asked for.
-    naming: bool,
 }

 struct PendingPrompt {
@@ -336,7 +329,6 @@ impl CodexShim {
        t.parent = None;
        t.settings = Some(settings);
        t.cwd = cwd;
-        t.named = thread.get("name").and_then(Value::as_str).is_some_and(|n| !n.trim().is_empty());
        (id, options)
    }

@@ -633,9 +625,8 @@ impl CodexShim {
                Some(translate::plan(params))
            }),
            "thread/tokenUsage/updated" => self.with_thread(thread, |_, _| translate::usage(params)),
-            "thread/name/updated" => self.with_thread(thread, |t, _| {
+            "thread/name/updated" => self.with_thread(thread, |_, _| {
                let title = params.get("threadName").and_then(Value::as_str)?;
-                t.named = true;
                Some(json!({ "sessionUpdate": "session_info_update", "title": title }))
            }),
            "thread/started" => self.thread_started(params.get("thread").unwrap_or(&Value::Null)),
@@ -821,10 +812,9 @@ impl CodexShim {
        }
    }

-    fn turn_completed(self: &Arc<Self>, thread: &str, turn: &Value) {
+    fn turn_completed(&self, thread: &str, turn: &Value) {
        let id = turn.get("id").and_then(Value::as_str).unwrap_or_default();
-        let completed = turn.get("status").and_then(Value::as_str) == Some("completed");
-        let (parent, answer, name) = {
+        let (parent, answer) = {
            let mut state = self.state.lock();
            let Some(t) = state.threads.get_mut(thread) else { return };
            if t.turn.as_deref().is_none_or(|r| r == id) {
@@ -840,15 +830,8 @@ impl CodexShim {
                let _ = p.done.send((turn.clone(), error.clone()));
            }
            let answer = std::mem::take(&mut t.answer);
-            let name =
-                completed && !id.is_empty() && t.parent.is_none() && t.settings.is_some() && !t.named && !t.naming;
-            t.naming |= name;
-            (t.parent.clone(), (answer, error), name)
+            (t.parent.clone(), (answer, error))
        };
-        if name {
-            let (shim, thread, turn) = (self.clone(), thread.to_owned(), id.to_owned());
-            self.runtime.spawn(async move { shim.name_thread(&thread, &turn).await });
-        }
        let Some(parent) = parent else { return };
        let (answer, error) = answer;
        let mut state_of = match turn.get("status").and_then(Value::as_str) {
@@ -870,28 +853,6 @@ impl CodexShim {
        }
    }

-    /// Names a thread from what it holds after `turn`, as codex leaves naming to its
-    /// clients; `thread/name/updated` brings the name back. Unnamed, the next turn tries again.
-    async fn name_thread(&self, thread: &str, turn: &str) {
-        let sample = json!({ "threadId": thread, "expectedTurnId": turn, "prompt": NAME_PROMPT, "effort": "low" });
-        let named = match self.call("thread/sample", sample).await {
-            Ok(r) => match r.get("text").and_then(Value::as_str).and_then(translate::thread_name) {
-                Some(name) => {
-                    self.call("thread/name/set", json!({ "threadId": thread, "name": name })).await.map(|_| ())
-                }
-                None => Err(error(codes::INTERNAL_ERROR, "codex gave no name")),
-            },
-            Err(e) => Err(e),
-        };
-        if let Err(e) = &named {
-            tracing::debug!("naming codex thread {thread}: {}", e.message);
-        }
-        if let Some(t) = self.state.lock().threads.get_mut(thread) {
-            t.naming = false;
-            t.named |= named.is_ok();
-        }
-    }
-
    /// Requests from codex: approvals and questions, asked as ACP permission requests.
    fn on_codex_request(&self, method: &str, params: &Value) -> Result<Value, (i64, String)> {
        let thread = params.get("threadId").and_then(Value::as_str).unwrap_or_default().to_owned();
@@ -535,10 +535,8 @@ async fn play<R: AsyncRead + Unpin, W: AsyncWrite + Unpin>(
                    .unwrap()
                    .unwrap_or_else(|| panic!("the shim closed before {frame}"));
                let actual: Value = serde_json::from_str(&line).unwrap();
-                // Older recordings predate skill discovery and thread naming; play an
-                // unsupported server.
-                let method = actual["method"].as_str().unwrap_or_default();
-                if matches!(method, "skills/list" | "thread/sample") && frame["method"] != method {
+                // Older recordings predate skill discovery; play an unsupported server.
+                if actual["method"] == "skills/list" && frame["method"] != "skills/list" {
                    let reply = json!({ "id": actual["id"], "error": { "code": -32601, "message": "unsupported" } });
                    write.write_all(format!("{reply}\n").as_bytes()).await.unwrap();
                    continue;
@@ -576,14 +574,7 @@ async fn play<R: AsyncRead + Unpin, W: AsyncWrite + Unpin>(
 /// Runs `scenario` against its transcript; returns the ACP results, the client and
 /// the frames the shim sent.
 async fn replay(scenario: Scenario) -> (Results, Arc<Client>, Vec<Value>, Value) {
-    let (results, client, sent, meta, _codex) = replay_transcript(scenario, load(scenario.file())).await;
-    (results, client, sent, meta)
-}
-
-/// Both connections of a replay, which stay open while it is held.
-type CodexEnd = Box<dyn std::any::Any>;
-
-async fn replay_transcript(scenario: Scenario, t: Transcript) -> (Results, Arc<Client>, Vec<Value>, Value, CodexEnd) {
+    let t = load(scenario.file());
    let (ours, theirs) = tokio::io::duplex(1 << 20);
    let (tr, tw) = tokio::io::split(theirs);
    let client = Arc::new(Client::default());
@@ -599,8 +590,8 @@ async fn replay_transcript(scenario: Scenario, t: Transcript) -> (Results, Arc<C
        .await
        .expect("the scenario finished");
    // Codex stays up until the scenario is over.
-    let (sent, read, write) = player.await.unwrap();
-    (results, client, sent, meta, Box::new((acp, read, write)))
+    let (sent, _read, _write) = player.await.unwrap();
+    (results, client, sent, meta)
 }

 fn sent<'a>(frames: &'a [Value], method: &str) -> Vec<&'a Value> {
@@ -810,42 +801,6 @@ async fn a_simple_turn_streams_reasoning_text_and_usage() {
    assert_eq!(info["title"], "Say hi");
 }

-#[tokio::test(flavor = "multi_thread")]
-async fn an_unnamed_thread_is_named_after_its_first_turn() {
-    let mut t = load(Scenario::Simple.file());
-    t.frames.retain(|(_, f)| f["method"] != "thread/name/updated");
-    let thread = "01a18300-0000-7000-8000-000000000001";
-    t.frames.extend([
-        (true, json!({"id": 90, "method": "thread/sample"})),
-        (false, json!({"id": 90, "result": {"responseId": "r", "sourceTurnId": thread, "text": "\"Say hi.\"\n"}})),
-        (true, json!({"id": 91, "method": "thread/name/set"})),
-        (false, json!({"id": 91, "result": {}})),
-        (false, json!({"method": "thread/name/updated", "params": {"threadId": thread, "threadName": "Say hi"}})),
-    ]);
-    let (results, client, frames, _, _codex) = replay_transcript(Scenario::Simple, t).await;
-    let session = session_of(&results, "new");
-    let sample = &sent(&frames, "thread/sample")[0]["params"];
-    assert_eq!((sample["threadId"].as_str(), sample["expectedTurnId"].as_str()), (Some(thread), Some(thread)));
-    assert_eq!(sent(&frames, "thread/name/set")[0]["params"], json!({"threadId": thread, "name": "Say hi"}));
-    let mut info = Vec::new();
-    for _ in 0..100 {
-        info = client.of(&session).into_iter().filter(|u| u["sessionUpdate"] == "session_info_update").collect();
-        if !info.is_empty() {
-            break;
-        }
-        tokio::time::sleep(Duration::from_millis(20)).await;
-    }
-    assert_eq!(info.iter().map(|u| u["title"].clone()).collect::<Vec<_>>(), [json!("Say hi")]);
-}
-
-#[test]
-fn thread_names_are_the_first_line_of_the_reply() {
-    assert_eq!(thread_name("  \n“修复登录表单。”\nmore").as_deref(), Some("修复登录表单"));
-    assert_eq!(thread_name("**Fix the login form.**").as_deref(), Some("Fix the login form"));
-    assert_eq!(thread_name(" \n\"\" "), None);
-    assert_eq!(thread_name(&"x".repeat(100)).map(|n| n.chars().count()), Some(80));
-}
-
 #[tokio::test(flavor = "multi_thread")]
 async fn settings_apply_to_the_next_turn() {
    let (results, client, frames, _) = replay(Scenario::MultiTurn).await;
@@ -612,16 +612,6 @@ pub(super) fn usage(params: &Value) -> Option<Value> {
    Some(json!({ "sessionUpdate": "usage_update", "used": used, "size": size }))
 }

-/// A thread name from the model's reply to the naming prompt: its first line, without
-/// quotes or a closing period. `None` when nothing is left.
-pub(super) fn thread_name(reply: &str) -> Option<String> {
-    const MAX_NAME: usize = 80;
-    let line = reply.lines().map(str::trim).find(|l| !l.is_empty())?;
-    let line = line.trim_matches(|c: char| matches!(c, '"' | '\'' | '`' | '“' | '”' | '「' | '」' | '*'));
-    let line = line.trim_end_matches(['.', '。']).trim();
-    (!line.is_empty()).then(|| line.chars().take(MAX_NAME).collect())
-}
-
 /// How a failed turn is reported.
 #[derive(Debug, PartialEq)]
 pub(super) enum Failure {
@@ -2391,27 +2391,6 @@ async fn idle_agents_stop_and_resume_their_session_on_the_next_message() {
    assert!(live(&mgr, &task.id));
    mgr.shutdown();

-    // Undoing turns or copying the conversation starts a stopped agent: it stops again too.
-    let tmp = tempfile::tempdir().unwrap();
-    let agent = Arc::new(FakeAgent::default());
-    let mgr = manager(tmp.path(), agent.clone());
-    mgr.set_idle_release(Duration::from_millis(200));
-    let task = mgr.create(new()).await.unwrap();
-    wait_for(&mgr, &task.id, AgentStatus::Ready).await;
-    mgr.prompt(&task.id, text("again"), false).await.unwrap();
-    wait_for(&mgr, &task.id, AgentStatus::Ready).await;
-    tokio::time::sleep(Duration::from_millis(600)).await;
-    assert!(!live(&mgr, &task.id));
-    mgr.rollback(&task.id, 1).await.unwrap();
-    assert!(live(&mgr, &task.id));
-    tokio::time::sleep(Duration::from_millis(600)).await;
-    assert!(!live(&mgr, &task.id), "an agent started to undo turns stops too");
-    mgr.fork(&task.id, None).await.unwrap();
-    assert!(live(&mgr, &task.id));
-    tokio::time::sleep(Duration::from_millis(600)).await;
-    assert!(!live(&mgr, &task.id), "an agent started to copy the conversation stops too");
-    mgr.shutdown();
-
    // An agent that can't reload its session keeps running: stopping it would lose the conversation.
    let tmp = tempfile::tempdir().unwrap();
    let agent = Arc::new(FakeAgent { no_load: true, ..FakeAgent::default() });
@@ -225,15 +225,6 @@ fn same_file(a: &Path, b: &Path) -> bool {
    }
 }

-/// The bytes of `path` (`Some(None)`: no file there), or `None` when it is there but can't be read.
-fn existing(path: &Path) -> Option<Option<Vec<u8>>> {
-    match std::fs::read(path) {
-        Ok(bytes) => Some(Some(bytes)),
-        Err(e) if e.kind() == std::io::ErrorKind::NotFound => Some(None),
-        Err(_) => None,
-    }
-}
-
 fn crlf_to_lf(bytes: &[u8]) -> Vec<u8> {
    let mut out = Vec::with_capacity(bytes.len());
    for (i, &b) in bytes.iter().enumerate() {
@@ -420,31 +411,25 @@ pub(crate) fn accept(
    let copyable = |rel: &str| task_side.allows(rel) && checkout_side.allows(rel);
    let renamed_from: BTreeMap<String, String> =
        repo.diff_with_worktree(base)?.into_iter().filter_map(|f| Some((f.path, f.old_path?))).collect();
-    // The task's version of one path of the checkout (`Some(None)`: absent there), or `None` when
-    // the checkout changed it itself.
-    let target = |rel: &str| -> IdeResult<Option<Option<Vec<u8>>>> {
+    // Brings one path of the checkout to the task's version, unless the checkout changed it itself.
+    let apply = |rel: &str| -> IdeResult<bool> {
+        let local = local_root.join(rel);
        let in_task = repo.root().join(rel);
-        let current = std::fs::read(&in_task).ok();
-        // A file there that can't be read is the checkout's own: never written over.
-        let Some(local_bytes) = existing(&local_root.join(rel)) else { return Ok(None) };
-        if local_bytes == current {
-            return Ok(Some(current));
-        }
        let base_bytes = repo.file_bytes_at(&in_task, Some(base))?;
+        let current = std::fs::read(&in_task).ok();
+        let local_bytes = std::fs::read(&local).ok();
+        if local_bytes == current {
+            return Ok(true);
+        }
        // The checkout may hold the committed LF text with CRLF line ends (`core.autocrlf`).
        let unchanged = match (&local_bytes, &base_bytes) {
            (Some(now), Some(at_base)) => now == at_base || crlf_to_lf(now) == *at_base,
            (now, at_base) => now == at_base,
        };
-        Ok(unchanged.then_some(current))
-    };
-    // Puts `bytes` (`None`: nothing) at `rel` of the checkout.
-    let write = |rel: &str, bytes: Option<Vec<u8>>| -> IdeResult<()> {
-        let local = local_root.join(rel);
-        if std::fs::read(&local).ok() == bytes {
-            return Ok(());
+        if !unchanged {
+            return Ok(false);
        }
-        match bytes {
+        match current {
            Some(bytes) => {
                if let Some(parent) = local.parent() {
                    std::fs::create_dir_all(parent)?;
@@ -456,12 +441,6 @@ pub(crate) fn accept(
                _ => {}
            },
        }
-        Ok(())
-    };
-    // Brings one path of the checkout to the task's version, unless the checkout changed it itself.
-    let apply = |rel: &str| -> IdeResult<bool> {
-        let Some(bytes) = target(rel)? else { return Ok(false) };
-        write(rel, bytes)?;
        Ok(true)
    };
    let mut accepted = Vec::with_capacity(changes.len());
@@ -487,9 +466,8 @@ pub(crate) fn accept(
        // A case-only rename (`a.txt` → `A.txt`). Where the disk resolves both
        // spellings to one file it is renamed in place and `apply` then refreshes
        // the content. On a case-sensitive disk the two names are different files:
-        // both are checked before either changes — the old one must be the file the
-        // checkout had, the new one absent or already the task's — then the task's
-        // version lands at the new name before the old one goes.
+        // the old one's unchanged-ness (it is the file the checkout had) decides —
+        // then the task's version lands at the new name and the old one goes.
        let case_only =
            old.is_some_and(|o| o != &change.rel_path && o.to_lowercase() == change.rel_path.to_lowercase());
        if case_only {
@@ -498,18 +476,20 @@ pub(crate) fn accept(
            if same_file(&old_path, &new_path) {
                std::fs::rename(&old_path, &new_path)?;
            } else {
-                let Some(old_target) = target(old)? else {
+                if !apply(old)? {
                    skipped.push(skip(old));
                    continue;
-                };
-                let task_bytes = std::fs::read(repo.root().join(&change.rel_path)).ok();
-                let at_new = existing(&new_path);
-                if at_new.as_ref().is_none_or(|at_new| at_new.is_some() && *at_new != task_bytes) {
-                    skipped.push(skip(&change.rel_path));
-                    continue;
                }
-                write(&change.rel_path, task_bytes)?;
-                write(old, old_target)?;
+                // `apply(old)` removed the old file (the task's tree has it only at
+                // the new name); now write that version under the new name. `apply`
+                // can't do it — it reads the new name's own base/absence — so the
+                // write is open-coded from the same task bytes `apply` would use.
+                if let Ok(bytes) = std::fs::read(repo.root().join(&change.rel_path)) {
+                    if let Some(parent) = new_path.parent() {
+                        std::fs::create_dir_all(parent)?;
+                    }
+                    std::fs::write(&new_path, bytes)?;
+                }
                accepted.push(change.rel_path.clone());
                continue;
            }
@@ -980,41 +960,6 @@ mod tests {
        assert_eq!(names, ["A.txt"]);
    }

-    #[test]
-    fn a_case_only_rename_keeps_a_file_the_checkout_has_at_the_new_name() {
-        let (_tmp, repo, created) = accept_repo();
-        std::fs::write(repo.join("A.txt"), "mine\n").unwrap();
-        if std::fs::read_to_string(repo.join("a.txt")).unwrap() == "mine\n" {
-            eprintln!("this disk doesn't tell a.txt from A.txt; nothing to check");
-            return;
-        }
-        git(&created.path, &["mv", "a.txt", "A.txt"]);
-        let changes = listed(&created.path, &created.base_commit);
-        let outcome = accept(&repo, &created.path, &created.base_commit, &changes).unwrap();
-        assert_eq!(outcome.skipped.iter().map(|s| s.path.as_str()).collect::<Vec<_>>(), ["A.txt"]);
-        assert_eq!(std::fs::read_to_string(repo.join("A.txt")).unwrap(), "mine\n");
-        assert_eq!(std::fs::read_to_string(repo.join("a.txt")).unwrap(), "one\ntwo\n");
-    }
-
-    #[cfg(unix)]
-    #[test]
-    fn accept_leaves_a_checkout_file_it_cannot_read() {
-        use std::os::unix::fs::PermissionsExt;
-        let (_tmp, repo, created) = accept_repo();
-        std::fs::write(created.path.join("new.txt"), "task\n").unwrap();
-        std::fs::write(repo.join("new.txt"), "mine\n").unwrap();
-        std::fs::set_permissions(repo.join("new.txt"), std::fs::Permissions::from_mode(0o200)).unwrap();
-        if std::fs::read(repo.join("new.txt")).is_ok() {
-            eprintln!("running as a user that reads any file; nothing to check");
-            return;
-        }
-        let changes = listed(&created.path, &created.base_commit);
-        let outcome = accept(&repo, &created.path, &created.base_commit, &changes).unwrap();
-        std::fs::set_permissions(repo.join("new.txt"), std::fs::Permissions::from_mode(0o644)).unwrap();
-        assert_eq!(outcome.skipped.iter().map(|s| s.path.as_str()).collect::<Vec<_>>(), ["new.txt"]);
-        assert_eq!(std::fs::read_to_string(repo.join("new.txt")).unwrap(), "mine\n");
-    }
-
    #[cfg(windows)]
    #[test]
    fn accept_does_not_write_into_the_checkouts_git_folder_through_its_short_name() {
@@ -12,8 +12,7 @@ mod up_to_date;
 pub use fingerprint::{LaunchFingerprint, launch_fingerprint, menu_fingerprint};
 pub use launch_resources::process_launch_resources;
 pub use single::{
-    SingleFileTarget, compile_file_plan, find_javac, javac_step, module_classpath, single_file_classpath,
-    single_file_target,
+    SingleFileTarget, compile_file_plan, find_javac, javac_step, single_file_classpath, single_file_target,
 };
 pub use up_to_date::{menu_up_to_date, record_menu_build};

@@ -144,13 +144,6 @@ fn bracket_pos(s: &str) -> Option<(u32, Option<u32>, &str)> {
    Some((line, col, rest.trim_start()))
 }

-/// `/C:/p/A.java` → `C:/p/A.java`: Maven and file URIs put a `/` before the drive letter on Windows.
-/// Joined as is, it would become the drive-relative `C:p/A.java`.
-fn drive_path(p: &str) -> &str {
-    let b = p.as_bytes();
-    if b.len() > 2 && b[0] == b'/' && b[1].is_ascii_alphabetic() && b[2] == b':' { &p[1..] } else { p }
-}
-
 /// `file:///p/A.kt` → `/p/A.kt` (percent-decoded).
 fn from_file_uri(s: &str) -> String {
    let Some(rest) = s.strip_prefix("file://") else { return s.to_owned() };
@@ -169,7 +162,9 @@ fn from_file_uri(s: &str) -> String {
        out.push(bytes[i]);
        i += 1;
    }
-    drive_path(&String::from_utf8_lossy(&out)).to_owned()
+    let path = String::from_utf8_lossy(&out).into_owned();
+    // `file:///C:/x` on Windows.
+    if path.len() > 2 && path.as_bytes()[0] == b'/' && path.as_bytes()[2] == b':' { path[1..].to_owned() } else { path }
 }

 /// Kotlin: `file:///p/A.kt:12:5 msg` or `/p/A.kt: (12, 5): msg`, after the `e: ` / `w: ` prefix.
@@ -227,7 +222,7 @@ fn maven_line(line: &str) -> Option<RawMessage> {
        && looks_like_source_path(path)
        && let Some((ln, col, msg)) = bracket_pos(&format!("[{pos}"))
    {
-        return Some(RawMessage::new(severity, msg, ColUnit::Char).at(drive_path(path), ln, col));
+        return Some(RawMessage::new(severity, msg, ColUnit::Char).at(path, ln, col));
    }
    if let Some(m) = kotlin_line(rest) {
        return Some(m);
@@ -461,20 +456,6 @@ mod tests {
        assert_eq!(out[1].unit, ColUnit::Char);
    }

-    #[test]
-    fn maven_windows_paths_drop_the_slash_before_the_drive() {
-        let out = parse(
-            Format::Maven,
-            "[ERROR] /C:/dev/p/src/main/java/a/A.java:[18,41] package a.b does not exist\n\
-             [ERROR] C:\\dev\\p\\B.java:[3,8] cannot find symbol\n\
-             [ERROR] file:///C:/dev/p/K.kt:4:9 Unresolved reference 'x'.\n",
-        );
-        assert_eq!(out.len(), 3, "{out:?}");
-        assert_eq!(pos(&out[0]), (Severity::Error, "C:/dev/p/src/main/java/a/A.java", 18, Some(41)));
-        assert_eq!(pos(&out[1]), (Severity::Error, "C:\\dev\\p\\B.java", 3, Some(8)));
-        assert_eq!(pos(&out[2]), (Severity::Error, "C:/dev/p/K.kt", 4, Some(9)));
-    }
-
    #[test]
    fn maven_detail_lines_with_level_prefix_and_kotlin() {
        let out = parse(
@@ -4,21 +4,12 @@
 //! walks the whole reactor; compiling one file only needs that file's module
 //! outputs plus its dependency classpath, which is much faster to assemble.
 use super::*;
-use serde::{Deserialize, Serialize};
 use std::fs;
 use std::process::Command as ProcCommand;

 /// Output file of the `dependency:build-classpath` probe, relative to each module.
 const CP_FILE: &str = "target/ide-compile-cp.txt";

-/// The resolved dependency classpath for one module and scope, tied to the same
-/// inputs as its launch build so POM, JDK, settings and profile changes invalidate it.
-#[derive(Debug, Deserialize, Serialize)]
-struct CachedClasspath {
-    fingerprint: LaunchFingerprint,
-    classpath: String,
-}
-
 /// A `.java` source and the module build that compiles it.
 pub struct SingleFileTarget {
    /// Absolute module directory.
@@ -73,28 +64,6 @@ pub fn single_file_target(root: &Path, model: &BuildModel, file: &Path) -> IdeRe
    Ok(SingleFileTarget { module, test, out_dir, top: top.clone(), pl, java_version: project.java_version })
 }

-/// The Maven reactor target for a launch module whose source file is not known yet.
-fn module_target(root: &Path, model: &BuildModel, module: &Path, test: bool) -> IdeResult<SingleFileTarget> {
-    let Some(m) = &model.maven else {
-        return Err(IdeError::not_found("no linked Maven project found for module"));
-    };
-    let module = if module.is_absolute() { module.to_path_buf() } else { root.join(module) };
-    let project = m
-        .projects
-        .iter()
-        .find(|p| root.join(&p.dir) == module)
-        .ok_or_else(|| IdeError::not_found("no linked Maven project found for module"))?;
-    if project.packaging == "pom" {
-        return Err(IdeError::not_found("the launch module is a Maven aggregator without sources"));
-    }
-    let top = maven_reactor(m, &project.dir)
-        .ok_or_else(|| IdeError::not_found("no linked Maven reactor found for module"))?;
-    let top_dir = subdir(root, &top.dir);
-    let pl = module.strip_prefix(&top_dir).map(|r| r.to_string_lossy().replace('\\', "/")).unwrap_or_default();
-    let out_dir = module.join("target").join(if test { "test-classes" } else { "classes" });
-    Ok(SingleFileTarget { module, test, out_dir, top: top.clone(), pl, java_version: project.java_version })
-}
-
 /// `javac` for the module: its `JAVA_HOME`, else `PATH`.
 pub fn find_javac(env: &BTreeMap<String, String>) -> String {
    let home = env.get("JAVA_HOME").map(Path::new);
@@ -109,88 +78,6 @@ pub fn find_javac(env: &BTreeMap<String, String>) -> String {
 /// `mvn dependency:build-classpath` (which resolves without compiling anything,
 /// so `-am` stays cheap). Entries are platform-separated (`;` on Windows).
 pub fn single_file_classpath(root: &Path, model: &BuildModel, target: &SingleFileTarget) -> IdeResult<String> {
-    classpath(root, model, target, "test", false)
-}
-
-/// Runtime (or test) dependency classpath for a launch module.
-///
-/// The Java language server runs on its own JDK, so its Maven model can select a
-/// different JDK profile and dependency classifier than the project launch. Use the
-/// same Maven process that builds the module instead.
-pub fn module_classpath(
-    root: &Path,
-    model: &BuildModel,
-    module: &Path,
-    test: bool,
-    local_repo: Option<PathBuf>,
-    cache: &Path,
-    cancel: &ide_core::CancellationToken,
-) -> IdeResult<String> {
-    let target = module_target(root, model, module, test)?;
-    let fingerprint = launch_fingerprint(root, model, &target.module, test, local_repo, cancel)?;
-    let cache_path = classpath_cache_path(root, cache, &target.module, test);
-    if let (Some(fingerprint), Some(path)) = (&fingerprint, &cache_path)
-        && let Ok(bytes) = fs::read(path)
-        && let Ok(cached) = serde_json::from_slice::<CachedClasspath>(&bytes)
-        && cached.fingerprint == *fingerprint
-        && classpath_entries_exist(root, &cached.classpath)
-    {
-        return Ok(cached.classpath);
-    }
-    let classpath = classpath(root, model, &target, if test { "test" } else { "runtime" }, true)?;
-    if cancel.is_cancelled() {
-        return Err(IdeError::cancelled());
-    }
-    if let (Some(fingerprint), Some(path)) = (fingerprint, cache_path) {
-        let cached = CachedClasspath { fingerprint, classpath: classpath.clone() };
-        if let Err(error) = cache_classpath(&path, &cached) {
-            tracing::debug!(path = %path.display(), %error, "Cannot cache the Java launch classpath");
-        }
-    }
-    Ok(classpath)
-}
-
-/// One cache file per module and scope. Mirroring the module path keeps nested
-/// modules and their different dependency scopes from overwriting each other.
-fn classpath_cache_path(root: &Path, cache: &Path, module: &Path, test: bool) -> Option<PathBuf> {
-    let relative = module.strip_prefix(root).ok()?;
-    let mut path = cache.join("java-launch/classpaths");
-    path.push(if relative.as_os_str().is_empty() { Path::new("_root") } else { relative });
-    path.push(if test { "test.json" } else { "runtime.json" });
-    Some(path)
-}
-
-/// Best-effort cache persistence. A failed write only costs one later Maven
-/// probe, so the launch still succeeds even when the cache directory is unusable.
-fn cache_classpath(path: &Path, cached: &CachedClasspath) -> IdeResult<()> {
-    if let Some(parent) = path.parent() {
-        fs::create_dir_all(parent)?;
-    }
-    fs::write(path, serde_json::to_vec(cached).map_err(|e| IdeError::internal(e.to_string()))?)?;
-    Ok(())
-}
-
-/// A cache entry stays valid while every file exists. Maven also emits reactor
-/// output directories for modules with no classes, which may legitimately never be
-/// created; the launch snapshot already supplies the module's classes in that case.
-fn classpath_entries_exist(root: &Path, classpath: &str) -> bool {
-    // Temp directories on macOS are commonly reached through `/var`, while Maven
-    // reports the canonical `/private/var` path. Compare against both spellings.
-    let canonical_root = dunce::canonicalize(root).unwrap_or_else(|_| root.to_path_buf());
-    std::env::split_paths(classpath).all(|entry| {
-        entry.exists()
-            || ((entry.starts_with(root) || entry.starts_with(&canonical_root))
-                && (entry.ends_with(Path::new("target/classes")) || entry.ends_with(Path::new("target/test-classes"))))
-    })
-}
-
-fn classpath(
-    root: &Path,
-    model: &BuildModel,
-    target: &SingleFileTarget,
-    scope: &str,
-    compile_first: bool,
-) -> IdeResult<String> {
    let mut entries: Vec<String> = Vec::new();
    // The module's own classes first: the file almost always uses classes next to it.
    let own: &[&str] = if target.test { &["target/test-classes", "target/classes"] } else { &["target/classes"] };
@@ -223,14 +110,7 @@ fn classpath(
        args.extend(["-pl", target.pl.as_str(), "-am"]);
    }
    let output_arg = format!("-Dmdep.outputFile={probe}");
-    let scope_arg = format!("-Dmdep.includeScope={scope}");
-    // A launch build may only have reached `compile`. Running `compile` in this
-    // same Maven session lets the dependency plugin resolve Reactor siblings from
-    // their target/classes without paying for package-phase plugins.
-    if compile_first {
-        args.push("compile");
-    }
-    args.extend(["dependency:build-classpath", output_arg.as_str(), scope_arg.as_str(), "-q"]);
+    args.extend(["dependency:build-classpath", output_arg.as_str(), "-Dmdep.includeScope=test", "-q"]);
    let top_dir = subdir(root, &target.top.dir);
    let status = ProcCommand::new(&target.top.command)
        .args(&args)
@@ -239,10 +119,8 @@ fn classpath(
        .output()
        .map_err(|e| IdeError::internal(format!("cannot resolve the compile classpath: {e}")))?;
    if !status.status.success() {
-        let stdout = String::from_utf8_lossy(&status.stdout);
        let stderr = String::from_utf8_lossy(&status.stderr);
-        // Maven reports reactor/dependency failures on stdout, not only stderr.
-        let tail: Vec<&str> = stdout.lines().chain(stderr.lines()).filter(|l| !l.trim().is_empty()).collect();
+        let tail: Vec<&str> = stderr.lines().filter(|l| !l.trim().is_empty()).collect();
        let tail = tail.iter().rev().take(5).rev().cloned().collect::<Vec<_>>().join("\n");
        return Err(IdeError::internal(format!("cannot resolve the compile classpath:\n{tail}")));
    }
@@ -427,7 +305,7 @@ mod tests {
        let script = root.join("mvnw");
        fs::write(
            &script,
-            "#!/bin/sh\nprintf '%s\\n' \"$@\" > args.txt\npl='.'\nwhile [ $# -gt 0 ]; do\nif [ \"$1\" = \"-pl\" ]; then pl=\"$2\"; shift 2; else shift; fi\ndone\nmkdir -p \"$pl/target\"\nprintf '/repo/a.jar:/repo/b.jar' > \"$pl/target/ide-compile-cp.txt\"\n",
+            "#!/bin/sh\npl='.'\nwhile [ $# -gt 0 ]; do\nif [ \"$1\" = \"-pl\" ]; then pl=\"$2\"; shift 2; else shift; fi\ndone\nmkdir -p \"$pl/target\"\nprintf '/repo/a.jar:/repo/b.jar' > \"$pl/target/ide-compile-cp.txt\"\n",
        )
        .unwrap();
        fs::set_permissions(&script, fs::Permissions::from_mode(0o755)).unwrap();
@@ -449,90 +327,5 @@ mod tests {
        assert!(cp.contains("/repo/a.jar"), "{cp}");
        assert!(cp.contains("/repo/b.jar"), "{cp}");
        assert!(cp.split(separator).count() >= 3, "{cp}");
-        let args = fs::read_to_string(root.join("args.txt")).unwrap();
-        assert!(!args.lines().any(|a| a == "compile" || a == "package"), "{args}");
-    }
-
-    /// A launch uses runtime dependencies, while tests additionally see test-scope ones.
-    #[cfg(unix)]
-    #[test]
-    fn launch_module_classpath_uses_the_matching_dependency_scope() {
-        use std::os::unix::fs::PermissionsExt;
-
-        let dir = tempfile::tempdir().unwrap();
-        let root = dir.path();
-        fixture(root);
-        let script = root.join("mvnw");
-        fs::write(
-            &script,
-            "#!/bin/sh\nprintf '%s\\n' \"$@\" > args.txt\npl='.'\nwhile [ $# -gt 0 ]; do\nif [ \"$1\" = \"-pl\" ]; then pl=\"$2\"; shift 2; else shift; fi\ndone\nmkdir -p \"$pl/target\"\nprintf '/repo/runtime.jar:/repo/test.jar' > \"$pl/target/ide-compile-cp.txt\"\n",
-        )
-        .unwrap();
-        fs::set_permissions(&script, fs::Permissions::from_mode(0o755)).unwrap();
-        let model = crate::load(root, &root.join("cache"), None);
-
-        let cache = root.join("cache");
-        let runtime =
-            module_classpath(root, &model, &root.join("app"), false, None, &cache, &CancellationToken::new()).unwrap();
-        assert!(runtime.contains("/repo/runtime.jar"), "{runtime}");
-        let args = fs::read_to_string(root.join("args.txt")).unwrap();
-        assert!(args.lines().any(|a| a == "compile"), "{args}");
-        assert!(!args.lines().any(|a| a == "package"), "{args}");
-        assert!(args.lines().any(|a| a == "-Dmdep.includeScope=runtime"), "{args}");
-
-        let test =
-            module_classpath(root, &model, &root.join("app"), true, None, &cache, &CancellationToken::new()).unwrap();
-        assert!(test.contains("/repo/test.jar"), "{test}");
-        let args = fs::read_to_string(root.join("args.txt")).unwrap();
-        assert!(args.lines().any(|a| a == "-Dmdep.includeScope=test"), "{args}");
-    }
-
-    /// The launch classpath follows the Maven runner JDK and is reused until that
-    /// build input changes; the probe does not run packaging plugins.
-    #[cfg(unix)]
-    #[test]
-    fn launch_classpath_cache_follows_the_runner_jdk() {
-        use std::os::unix::fs::PermissionsExt;
-
-        let dir = tempfile::tempdir().unwrap();
-        let root = dir.path();
-        fixture(root);
-        let script = root.join("mvnw");
-        // `dependency:build-classpath` reports reactor outputs as absolute paths. Keep
-        // the fake probe faithful so the cache's existence check sees the output.
-        fs::write(
-            &script,
-            "#!/bin/sh\nprintf x >> calls.txt\npl='.'\nwhile [ $# -gt 0 ]; do\nif [ \"$1\" = \"-pl\" ]; then pl=\"$2\"; shift 2; else shift; fi\ndone\nmkdir -p \"$pl/target/classes\" \"$JAVA_HOME/classpath\"\n: > \"$JAVA_HOME/classpath/jdk.jar\"\nprintf '%s/classpath/jdk.jar:%s/%s/target/classes:%s/empty/target/classes' \"$JAVA_HOME\" \"$(pwd)\" \"$pl\" \"$(pwd)\" > \"$pl/target/ide-compile-cp.txt\"\n",
-        )
-        .unwrap();
-        fs::set_permissions(&script, fs::Permissions::from_mode(0o755)).unwrap();
-        let mut model = crate::load(root, &root.join("cache"), None);
-        for (name, version) in [("jdk21", "21"), ("jdk8", "8")] {
-            let home = root.join(name);
-            fs::create_dir_all(home.join("bin")).unwrap();
-            fs::write(home.join("release"), format!("JAVA_VERSION=\"{version}\"\n")).unwrap();
-            fs::write(home.join("bin/java"), "").unwrap();
-        }
-        let cache = root.join("classpath-cache");
-        let cancel = CancellationToken::new();
-        let jdk21 = root.join("jdk21");
-        for project in &mut model.maven.as_mut().unwrap().projects {
-            project.env.insert("JAVA_HOME".into(), jdk21.to_string_lossy().into_owned());
-        }
-        let first = module_classpath(root, &model, &root.join("app"), false, None, &cache, &cancel).unwrap();
-        assert!(first.contains("jdk21/classpath/jdk.jar"), "{first}");
-        assert!(!first.contains("jdk8/classpath/jdk.jar"), "{first}");
-        let second = module_classpath(root, &model, &root.join("app"), false, None, &cache, &cancel).unwrap();
-        assert_eq!(second, first);
-        assert_eq!(fs::read_to_string(root.join("calls.txt")).unwrap(), "x");
-
-        let jdk8 = root.join("jdk8");
-        for project in &mut model.maven.as_mut().unwrap().projects {
-            project.env.insert("JAVA_HOME".into(), jdk8.to_string_lossy().into_owned());
-        }
-        let switched = module_classpath(root, &model, &root.join("app"), false, None, &cache, &cancel).unwrap();
-        assert!(switched.contains("jdk8/classpath/jdk.jar"), "{switched}");
-        assert!(!switched.contains("jdk21/classpath/jdk.jar"), "{switched}");
-        assert_eq!(fs::read_to_string(root.join("calls.txt")).unwrap(), "xx");
    }
 }
@@ -712,27 +712,18 @@ pub(crate) fn launch_inputs(
        // Profile activation may depend on the presence of an otherwise unrelated file.
        let activation = parent == "file" && matches!(el.name.as_str(), "exists" | "missing");
        if input || activation {
-            // A source root under Maven's build directory is generated by the build itself.
-            // Skip it without resolving the property: `<build><directory>` may be custom, and
-            // hashing its rewritten files would make every launch look changed.
-            if !(input && el.text.contains("${project.build.directory}")) {
-                // Other properties can be overridden by -D, profiles or settings. Without
-                // Maven's effective model, leave them unresolved to conservatively disable reuse.
-                let value = el
-                    .text
-                    .trim()
-                    .replace("${project.basedir}", &dir.to_string_lossy())
-                    .replace("${basedir}", &dir.to_string_lossy());
-                if value.contains("${") {
-                    return None;
-                }
-                if !value.is_empty() {
-                    let path = dir.join(value);
-                    // Conventional generated sources under target are also build outputs.
-                    if !(input && path.starts_with(dir.join("target"))) {
-                        out.push(path);
-                    }
-                }
+            // Other properties can be overridden by -D, profiles or settings.
+            // Without Maven's effective roots, conservatively disable reuse for them.
+            let value = el
+                .text
+                .trim()
+                .replace("${project.basedir}", &dir.to_string_lossy())
+                .replace("${basedir}", &dir.to_string_lossy());
+            if value.contains("${") {
+                return None;
+            }
+            if !value.is_empty() {
+                out.push(dir.join(value));
            }
        }
        for child in &el.children {
@@ -2149,52 +2140,6 @@ mod tests {
        assert_eq!(known.goals, ["compile", "help", "testCompile"], "the common plugins keep their table");
    }

-    #[test]
-    fn launch_inputs_skip_generated_sources_under_the_project_build_directory() {
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path();
-        write(
-            root,
-            "pom.xml",
-            "<project><groupId>demo</groupId><artifactId>parent</artifactId><version>1</version>\
-             <packaging>pom</packaging><modules><module>app</module></modules></project>",
-        );
-        write(
-            root,
-            "app/pom.xml",
-            r#"<project><parent><groupId>demo</groupId><artifactId>parent</artifactId><version>1</version></parent>
-               <artifactId>app</artifactId><build><plugins><plugin>
-                 <groupId>org.codehaus.mojo</groupId><artifactId>build-helper-maven-plugin</artifactId>
-                 <executions><execution><configuration><sources>
-                   <source>${project.build.directory}/generated-sources/java</source>
-                 </sources></configuration></execution></executions>
-               </plugin></plugins></build></project>"#,
-        );
-        let model = load_with_repo(root, None);
-        let projects: Vec<&MavenProject> = model.projects.iter().collect();
-        let inputs = launch_inputs(root, &projects, None).expect("portable launch inputs");
-        assert!(!inputs.contains(&root.join("app/target/generated-sources/java")), "{inputs:?}");
-        assert!(inputs.contains(&root.join("app/src")), "conventional sources stay fingerprinted");
-    }
-
-    #[test]
-    fn launch_inputs_disable_reuse_for_file_activation_on_the_build_directory() {
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path();
-        write(
-            root,
-            "pom.xml",
-            r#"<project><groupId>demo</groupId><artifactId>app</artifactId><version>1</version>
-               <build><directory>${project.basedir}/custom-build</directory></build>
-               <profiles><profile><id>generated</id><activation><file>
-                 <exists>${project.build.directory}/enable-profile</exists>
-               </file></activation></profile></profiles></project>"#,
-        );
-        let model = load_with_repo(root, None);
-        let projects: Vec<&MavenProject> = model.projects.iter().collect();
-        assert!(launch_inputs(root, &projects, None).is_none());
-    }
-
    fn write(dir: &Path, rel: &str, text: &str) {
        let p = dir.join(rel);
        std::fs::create_dir_all(p.parent().unwrap()).unwrap();
@@ -393,13 +393,11 @@ fn scan_versions(dir: &Path, typed: &str, budget: &mut u32) -> Vec<PomCompletion
    out
 }

-/// The repository directory of `coordinates` (a group id, or a group and an artifact
-/// id): the group's dots are directories, an artifact id is one directory whatever dots
-/// it has (`org/eclipse/platform/org.eclipse.core.runtime`). Each segment is validated
-/// against the layout's alphabet so POM text cannot walk outside `repo`.
+/// The repository directory of the `/`-separated `coordinates` (a group id, or
+/// a group and an artifact id), each segment validated against the layout's
+/// alphabet so POM text cannot walk outside `repo`.
 fn repo_dir(repo: &Path, coordinates: &[&str]) -> Option<PathBuf> {
-    let (group, artifact) = coordinates.split_first()?;
-    let segments: Vec<&str> = group.split('.').chain(artifact.iter().copied()).collect();
+    let segments: Vec<&str> = coordinates.iter().flat_map(|c| c.split('.')).collect();
    segments.iter().all(|s| segment(s)).then(|| segments.iter().fold(repo.to_path_buf(), |p, s| p.join(s)))
 }

@@ -462,7 +460,6 @@ mod tests {
            "org/example/lib/2.0-beta-1/lib-2.0-beta-1.jar",
            "org/example/lib/2.0/lib-2.0.pom",
            "net/nu/netty/4.1.100/netty-4.1.100.jar",
-            "org/eclipse/platform/org.eclipse.core.runtime/3.31.0/org.eclipse.core.runtime-3.31.0.jar",
            // Failed downloads (a version typed while editing): tracking files only, not installed.
            "org/example/lib/2/lib-2.jar.lastUpdated",
            "org/example/lib/3.0/lib-3.0.pom.lastUpdated",
@@ -573,10 +570,9 @@ mod tests {
        };
        // Only directories holding artifacts are group ids: `net` and `org`
        // alone never receive an install, their deeper levels do.
-        let org = ["org.apache.maven", "org.apache.maven.plugins", "org.eclipse.platform", "org.example"];
-        assert_eq!(options(""), [&["net.nu"][..], &org].concat());
-        assert_eq!(options("org"), org);
-        assert_eq!(options("org."), org);
+        assert_eq!(options(""), ["net.nu", "org.apache.maven", "org.apache.maven.plugins", "org.example"]);
+        assert_eq!(options("org"), ["org.apache.maven", "org.apache.maven.plugins", "org.example"]);
+        assert_eq!(options("org."), ["org.apache.maven", "org.apache.maven.plugins", "org.example"]);
        assert_eq!(options("org.spr"), Vec::<String>::new());
        assert_eq!(options("net."), ["net.nu"]);
    }
@@ -627,19 +623,6 @@ mod tests {
        };
        assert_eq!(options(""), ["2.0", "2.0-beta-1", "1.10", "1.9.1", "1.0"]);
        assert_eq!(options("1."), ["1.10", "1.9.1", "1.0"]);
-        // An artifact id with dots is one directory.
-        let dotted = local_options(
-            &repo,
-            &PomCompletionTarget {
-                from: 0,
-                to: 0,
-                typed: "".into(),
-                kind: PomCompletionKind::Version,
-                group: Some("org.eclipse.platform".into()),
-                artifact: Some("org.eclipse.core.runtime".into()),
-            },
-        );
-        assert_eq!(dotted.into_iter().map(|o| o.label).collect::<Vec<_>>(), ["3.31.0"]);
    }

    #[test]
@@ -270,13 +270,6 @@ fn run(

 /// The first error lines of a failed build, for the tool window.
 pub(crate) fn error_summary(text: &str) -> String {
-    // The JVM's "could not find or load main class" (localized) when `gradlew` has no jar.
-    if text.contains("org.gradle.wrapper.GradleWrapperMain") {
-        return "gradle/wrapper/gradle-wrapper.jar is missing (often excluded by a `*.jar` rule in .gitignore). \
-                Restore it, run `gradle wrapper` with an installed Gradle, or choose Distribution: Local installation \
-                in Settings › Build, Execution, Deployment › Gradle."
-            .to_owned();
-    }
    let lines: Vec<&str> = text
        .lines()
        .filter(|l| {
@@ -916,8 +909,6 @@ mod tests {
        let text = "[INFO] x\n[ERROR] Failed to execute goal\n[ERROR] \n[ERROR] Re-run Maven using -X\n";
        assert_eq!(error_summary(text), "Failed to execute goal");
        assert_eq!(error_summary("one\nlast line\n\n"), "last line");
-        let missing_jar = "错误: 找不到或无法加载主类 org.gradle.wrapper.GradleWrapperMain\n";
-        assert!(error_summary(missing_jar).starts_with("gradle/wrapper/gradle-wrapper.jar is missing"));
    }

    #[test]
@@ -270,8 +270,6 @@ pub struct SmartKeysSettings {
    pub pair_quotes: bool,
    pub surround_selection: bool,
    pub tab_out_of_pair: bool,
-    /// Simultaneous `<tag></tag>` editing: renaming a tag renames its matching tag.
-    pub simultaneous_tag_editing: bool,
    /// Reformat on paste: `none` | `indentBlock` | `indentEachLine`.
    pub reformat_on_paste: String,
    pub escape_on_paste: bool,
@@ -291,7 +289,6 @@ impl Default for SmartKeysSettings {
            pair_quotes: true,
            surround_selection: true,
            tab_out_of_pair: true,
-            simultaneous_tag_editing: true,
            reformat_on_paste: "indentEachLine".into(),
            escape_on_paste: true,
            smart_indent: true,
@@ -77,9 +77,6 @@ pub enum IdeEvent {
    WorkspaceEditApplied {
        id: u32,
        paths: Vec<crate::IpcPath>,
-        /// Made by an agent through the MCP server's tools: undoable like a refactoring, but
-        /// not announced as one.
-        by_agent: bool,
    },
    /// An open document's language changed (Settings › File Types, Override File
    /// Type), or its UI mode (a framework's root marker appeared or went).
@@ -77,8 +77,6 @@ pub enum AutoUpload {
 #[serde(default, rename_all = "camelCase")]
 pub struct DeploymentSettings {
    pub servers: Vec<DeploymentServer>,
-    /// Server groups: Upload to… on a group uploads to each of its servers.
-    pub groups: Vec<DeploymentGroup>,
    /// Server used by Upload / Download / Sync and automatic upload; empty = none.
    pub default_server: String,
    pub auto_upload: AutoUpload,
@@ -94,7 +92,6 @@ impl Default for DeploymentSettings {
    fn default() -> Self {
        Self {
            servers: Vec::new(),
-            groups: Vec::new(),
            default_server: String::new(),
            auto_upload: AutoUpload::Never,
            delete_remote: false,
@@ -106,16 +103,6 @@ impl Default for DeploymentSettings {
    }
 }

-/// Named set of deployment servers that files are uploaded to together.
-#[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct DeploymentGroup {
-    pub id: String,
-    pub name: String,
-    /// [`DeploymentServer::id`]s, in upload order.
-    pub servers: Vec<String>,
-}
-
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
 #[serde(rename_all = "camelCase")]
 pub enum DeploymentType {
@@ -291,7 +291,7 @@ pub enum NewTaskApprovals {
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
 #[serde(default, rename_all = "camelCase")]
 pub struct McpServerSettings {
-    /// Serve the tools on [`Self::address`] while the IDE runs.
+    /// Serve the tools on 127.0.0.1 while the IDE runs.
    pub enabled: bool,
    /// Run the tools that change the project or start processes without asking first
    /// (IDEA's brave mode). Read from the IDE's own settings only, never a project's.
@@ -300,36 +300,11 @@ pub struct McpServerSettings {
    pub agent_tab_limit: u32,
    /// Archived agent tabs kept; older ones are closed.
    pub agent_archive_limit: u32,
-    /// The IP address to listen on: `127.0.0.1` (this computer only, the default), another
-    /// address of this computer, or `0.0.0.0` / `::` for every address.
-    pub address: String,
-    /// Listen on [`Self::port`] in every run, rather than a free port each time, so HTTP clients and
-    /// port forwards keep working after a restart.
-    pub fixed_port: bool,
-    /// The port of [`Self::fixed_port`].
-    pub port: u16,
-    /// Keep the bearer token across runs (in the app data, readable by this user only) rather than
-    /// make a new one each run.
-    pub fixed_token: bool,
 }

-/// The default of [`McpServerSettings::port`].
-pub const DEFAULT_MCP_PORT: u16 = 26371;
-/// The default of [`McpServerSettings::address`]: this computer only.
-pub const DEFAULT_MCP_ADDRESS: &str = "127.0.0.1";
-
 impl Default for McpServerSettings {
    fn default() -> Self {
-        Self {
-            enabled: false,
-            run_without_confirmation: false,
-            agent_tab_limit: 1,
-            agent_archive_limit: 999,
-            address: DEFAULT_MCP_ADDRESS.to_owned(),
-            fixed_port: true,
-            port: DEFAULT_MCP_PORT,
-            fixed_token: false,
-        }
+        Self { enabled: false, run_without_confirmation: false, agent_tab_limit: 1, agent_archive_limit: 999 }
    }
 }

@@ -679,28 +654,6 @@ pub struct AppearanceSettings {
    pub status_bar_widgets: BTreeMap<String, bool>,
    /// Customize Main Toolbar; `None` = the default toolbar.
    pub main_toolbar: Option<MainToolbarSettings>,
-    /// Appearance › Background Image: an image shown through the IDE window.
-    pub background_image: BackgroundImageSettings,
-}
-
-/// Appearance › Background Image. An empty `path` shows no image.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct BackgroundImageSettings {
-    pub path: String,
-    /// Percent, 0–100.
-    pub opacity: u8,
-    /// `scale` (cover the window) | `plain` (original size) | `tile`.
-    pub fill: String,
-    /// Where the image is anchored: `center`, `top-left`, `top`, `top-right`, `left`, `right`,
-    /// `bottom-left`, `bottom`, `bottom-right`.
-    pub anchor: String,
-}
-
-impl Default for BackgroundImageSettings {
-    fn default() -> Self {
-        Self { path: String::new(), opacity: 15, fill: "scale".into(), anchor: "center".into() }
-    }
 }

 /// Main toolbar entries per side, in order: title widget ids (`project`,
@@ -771,7 +724,6 @@ impl Default for AppearanceSettings {
            navigation_bar: NavigationBarPosition::StatusBar,
            status_bar_widgets: BTreeMap::new(),
            main_toolbar: None,
-            background_image: BackgroundImageSettings::default(),
        }
    }
 }
@@ -1159,9 +1111,6 @@ pub struct NodeSettings {
    pub run_target: String,
    /// `npm` | `pnpm` | `yarn`; empty = detect from the lock file / `packageManager`.
    pub package_manager: String,
-    /// Runtime for running JavaScript / TypeScript files: `node` | `bun` | `deno`; empty = from the
-    /// project (`deno.json` → Deno, `bun.lock` → Bun, else Node.js).
-    pub runtime: String,
 }

 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
@@ -272,8 +272,6 @@ pub struct DebuggerSettings {
    pub value_tooltip_delay: u32,
    /// Stepping: do not step into library code (debugpy `justMyCode`, js-debug `skipFiles`).
    pub skip_library_code: bool,
-    /// JavaScript: debugging a dev server (`vite`, `next dev`) also opens its page in a browser session.
-    pub debug_server_page: bool,
    pub python: PythonDebuggerSettings,
 }

@@ -291,7 +289,6 @@ impl Default for DebuggerSettings {
            value_tooltip_on_selection: true,
            value_tooltip_delay: 700,
            skip_library_code: true,
-            debug_server_page: false,
            python: PythonDebuggerSettings::default(),
        }
    }
@@ -28,9 +28,6 @@ tracing.workspace = true
 [target.'cfg(unix)'.dependencies]
 libc = "0.2"

-[target.'cfg(windows)'.dependencies]
-windows-sys = { version = "0.61", features = ["Wdk_System_Threading", "Win32_Foundation", "Win32_System_Diagnostics_ToolHelp", "Win32_System_Threading"] }
-
 [dev-dependencies]
 tracing-subscriber.workspace = true
 tokio = { workspace = true, features = ["net", "rt-multi-thread", "macros", "test-util"] }
@@ -9,7 +9,6 @@
 use ide_core::process::executable_names;
 use ide_core::{IdeError, IdeResult};
 use ide_language::{DebuggerConfig, LanguageRegistry, ProgramPin};
-use serde_json::Value;
 use std::future::Future;
 use std::path::{Path, PathBuf};
 use std::pin::Pin;
@@ -213,50 +212,6 @@ pub fn tools_root() -> Option<PathBuf> {
    TOOLS_ROOT.read().clone()
 }

-/// The browser js-debug launches for `ty`, or `None` when the launch starts no browser.
-fn launched_browser(ty: &str) -> Option<&'static str> {
-    match ty {
-        "pwa-chrome" | "chrome" => Some("chrome"),
-        "pwa-msedge" | "msedge" => Some("msedge"),
-        _ => None,
-    }
-}
-
-/// Gives a browser launch that names no `userDataDir` a profile of `project`'s own in the
-/// IDE's local data (`cache/browser-profiles`), so sign-ins and site data are still there in
-/// the next session. js-debug's own default is one temporary profile for every project.
-pub(crate) fn set_browser_profile(arguments: &mut Value, project: &Path) {
-    if let Some(local_data) = tools_root().and_then(|tools| tools.parent().map(Path::to_owned)) {
-        set_browser_profile_in(arguments, project, &local_data);
-    }
-}
-
-fn set_browser_profile_in(arguments: &mut Value, project: &Path, local_data: &Path) {
-    let Some(obj) = arguments.as_object_mut() else { return };
-    let browser = obj.get("type").and_then(Value::as_str).and_then(launched_browser);
-    let launch = obj.get("request").and_then(Value::as_str) == Some("launch");
-    let (Some(browser), true, false) = (browser, launch, obj.contains_key("userDataDir")) else { return };
-    let dir = local_data.join("cache").join("browser-profiles").join(profile_name(project)).join(browser);
-    obj.insert("userDataDir".into(), dir.to_string_lossy().into_owned().into());
-}
-
-/// `<folder name>-<hash of the path>`: readable, and distinct for projects whose folders share a name.
-fn profile_name(project: &Path) -> String {
-    // FNV-1a: the name has to stay the same across toolchains, which `DefaultHasher` doesn't promise.
-    let hash = project
-        .to_string_lossy()
-        .bytes()
-        .fold(0xcbf2_9ce4_8422_2325_u64, |h, b| (h ^ u64::from(b)).wrapping_mul(0x0000_0100_0000_01b3));
-    let name: String = project
-        .file_name()
-        .map(|n| n.to_string_lossy().into_owned())
-        .unwrap_or_default()
-        .chars()
-        .map(|c| if c.is_ascii_alphanumeric() || c == '-' || c == '_' || c == '.' { c } else { '_' })
-        .collect();
-    format!("{name}-{hash:016x}")
-}
-
 /// Executable directories of managed installs, read at lookup time so tools installed
 /// after startup are found without a restart: `<tool>/bin`, `<tool>/venv/bin`, npm's `.bin`.
 fn managed_dirs(root: &Path) -> Vec<PathBuf> {
@@ -1085,33 +1040,6 @@ mod tests {
        assert!(err.message.contains("runs inside the Java language server"), "{}", err.message);
    }

-    #[test]
-    fn a_browser_launch_gets_a_profile_of_its_project() {
-        let local = Path::new("/data/local");
-        let profile = |args: serde_json::Value, project: &str| {
-            let mut args = args;
-            set_browser_profile_in(&mut args, Path::new(project), local);
-            args.get("userDataDir").cloned()
-        };
-        let chrome = serde_json::json!({ "type": "pwa-chrome", "request": "launch" });
-        let dir = profile(chrome.clone(), "/work/shop").unwrap();
-        let dir = Path::new(dir.as_str().unwrap());
-        assert!(dir.starts_with("/data/local/cache/browser-profiles"), "{dir:?}");
-        assert!(dir.ends_with("chrome"), "{dir:?}");
-        let name = dir.parent().unwrap().file_name().unwrap().to_string_lossy().into_owned();
-        assert!(name.starts_with("shop-") && name.len() == "shop-".len() + 16, "{name}");
-        // The same project again: the same profile. Another folder of that name, or Edge: another one.
-        assert_eq!(profile(chrome.clone(), "/work/shop").unwrap(), dir.to_string_lossy().as_ref());
-        assert_ne!(profile(chrome.clone(), "/other/shop").unwrap(), dir.to_string_lossy().as_ref());
-        let edge = profile(serde_json::json!({ "type": "pwa-msedge", "request": "launch" }), "/work/shop").unwrap();
-        assert!(Path::new(edge.as_str().unwrap()).ends_with("msedge"), "{edge}");
-        // A chosen profile (or the default one, `false`) is kept; Node and attach requests get none.
-        let own = serde_json::json!({ "type": "pwa-chrome", "request": "launch", "userDataDir": false });
-        assert_eq!(profile(own, "/work/shop"), Some(false.into()));
-        assert_eq!(profile(serde_json::json!({ "type": "pwa-node", "request": "launch" }), "/work/shop"), None);
-        assert_eq!(profile(serde_json::json!({ "type": "pwa-chrome", "request": "attach" }), "/work/shop"), None);
-    }
-
    #[test]
    fn port_conflicts_are_recognised_for_retry() {
        let in_use = IdeError::unavailable(
@@ -1,7 +1,6 @@
 //! Attach to Process: the current user's processes, grouped by the debugger that can
 //! attach to them (IDEA's `XAttachDebuggerProvider`s): JVMs with a JDWP agent, Node,
-//! Python (debugpy injection), .NET (netcoredbg), Go binaries (Delve) and anything else
-//! natively (LLDB).
+//! Python (debugpy injection), Go binaries (Delve) and anything else natively (LLDB).

 use crate::adapter;
 use ide_core::{IdeError, IdeResult};
@@ -15,7 +14,6 @@ pub enum AttachKind {
    Java,
    Node,
    Python,
-    Dotnet,
    Go,
    Native,
 }
@@ -97,29 +95,13 @@ fn file_name(path: &str) -> &str {
    path.rsplit(['/', '\\']).next().unwrap_or(path)
 }

-/// A .NET app: the `dotnet` host, or an apphost next to its `<name>.runtimeconfig.json`.
-pub fn is_dotnet(exe: &str) -> bool {
-    let path = Path::new(exe);
-    let Some(stem) = path.file_stem().and_then(|s| s.to_str()) else { return false };
-    if stem == "dotnet" {
-        return true;
-    }
-    path.is_absolute() && path.with_file_name(format!("{stem}.runtimeconfig.json")).is_file()
-}
-
 fn is_python(name: &str) -> bool {
    let n = name.strip_suffix(".exe").unwrap_or(name);
    n == "Python" || n.strip_prefix("python").is_some_and(|v| v.chars().all(|c| c.is_ascii_digit() || c == '.'))
 }

-/// Classifies a process; `is_dotnet` and `is_go` are asked only for processes no
-/// interpreter claims.
-pub fn classify(
-    p: &RawProcess,
-    is_dotnet: impl Fn(&str) -> bool,
-    is_go: impl Fn(&str) -> bool,
-    native_adapter: &str,
-) -> Option<AttachableProcess> {
+/// Classifies a process; `is_go` is asked only for processes no interpreter claims.
+pub fn classify(p: &RawProcess, is_go: impl Fn(&str) -> bool, native_adapter: &str) -> Option<AttachableProcess> {
    let name = file_name(&p.exe).to_owned();
    let make = |kind, adapter: &str, addr: Option<(Option<String>, u16)>| {
        let (host, port) = match addr {
@@ -147,9 +129,6 @@ pub fn classify(
    if is_python(&name) {
        return make(AttachKind::Python, "debugpy", debugpy_listen(&p.args));
    }
-    if is_dotnet(&p.exe) {
-        return make(AttachKind::Dotnet, "netcoredbg", None);
-    }
    if is_go(&p.exe) {
        return make(AttachKind::Go, "delve", None);
    }
@@ -164,7 +143,7 @@ const GO_SCAN_LIMIT: u64 = 96 << 20;
 pub fn is_go_binary(exe: &str) -> bool {
    use std::io::Read;
    let skip = ["/System/", "/usr/", "/bin/", "/sbin/", "/Library/Apple/", "/Applications/"];
-    if skip.iter().any(|p| exe.starts_with(p)) || is_windows_system(exe) || !Path::new(exe).is_absolute() {
+    if skip.iter().any(|p| exe.starts_with(p)) || !Path::new(exe).is_absolute() {
        return false;
    }
    let Ok(file) = std::fs::File::open(exe) else { return false };
@@ -186,17 +165,6 @@ pub fn is_go_binary(exe: &str) -> bool {
    }
 }

-/// Windows' own and installed programs (`C:\Windows\…`, `C:\Program Files…`), like the
-/// system locations skipped on Unix.
-fn is_windows_system(exe: &str) -> bool {
-    let lower = exe.to_ascii_lowercase();
-    lower.get(1..).is_some_and(|rest| {
-        rest.starts_with(":\\windows\\")
-            || rest.starts_with(":\\program files\\")
-            || rest.starts_with(":\\program files (x86)\\")
-    })
-}
-
 /// The current user's processes (without this one).
 #[cfg(unix)]
 pub fn list_processes() -> IdeResult<Vec<RawProcess>> {
@@ -213,7 +181,7 @@ pub fn list_processes() -> IdeResult<Vec<RawProcess>> {
        let (pid, rest) = line.split_once(char::is_whitespace)?;
        Some((pid.parse().ok()?, rest.trim().to_owned()))
    };
-    // `comm` is the executable path as started on macOS; on Linux it is truncated, so read /proc.
+    // `comm` is the executable path on macOS; on Linux it is truncated, so read /proc.
    let exes: HashMap<u32, String> =
        if cfg!(target_os = "linux") { HashMap::new() } else { ps("pid=,comm=")?.lines().filter_map(split).collect() };
    let me = std::process::id();
@@ -222,8 +190,9 @@ pub fn list_processes() -> IdeResult<Vec<RawProcess>> {
        .filter_map(split)
        .filter(|(pid, _)| *pid != me)
        .map(|(pid, args)| {
-            let exe = exe_path(pid)
-                .or_else(|| exes.get(&pid).cloned())
+            let exe = exes
+                .get(&pid)
+                .cloned()
                .or_else(|| std::fs::read_link(format!("/proc/{pid}/exe")).ok().map(|p| p.display().to_string()))
                .unwrap_or_else(|| args.split_whitespace().next().unwrap_or_default().to_owned());
            RawProcess { pid, exe, args }
@@ -231,134 +200,9 @@ pub fn list_processes() -> IdeResult<Vec<RawProcess>> {
        .collect())
 }

-/// The processes this user may open (without this one): system and other users'
-/// processes refuse `PROCESS_QUERY_LIMITED_INFORMATION` and are left out.
-#[cfg(windows)]
+#[cfg(not(unix))]
 pub fn list_processes() -> IdeResult<Vec<RawProcess>> {
-    windows_processes::list()
-}
-
-#[cfg(windows)]
-mod windows_processes {
-    use super::RawProcess;
-    use ide_core::{IdeError, IdeResult};
-    use std::os::windows::io::{AsRawHandle, FromRawHandle, OwnedHandle};
-    use windows_sys::Wdk::System::Threading::{NtQueryInformationProcess, ProcessCommandLineInformation};
-    use windows_sys::Win32::Foundation::{INVALID_HANDLE_VALUE, UNICODE_STRING};
-    use windows_sys::Win32::System::Diagnostics::ToolHelp::{
-        CreateToolhelp32Snapshot, PROCESSENTRY32W, Process32FirstW, Process32NextW, TH32CS_SNAPPROCESS,
-    };
-    use windows_sys::Win32::System::Threading::{
-        OpenProcess, PROCESS_NAME_WIN32, PROCESS_QUERY_LIMITED_INFORMATION, QueryFullProcessImageNameW,
-    };
-
-    pub fn list() -> IdeResult<Vec<RawProcess>> {
-        let me = std::process::id();
-        Ok(pids()?
-            .into_iter()
-            .filter(|&pid| pid != 0 && pid != me)
-            .filter_map(|pid| {
-                // SAFETY: plain call; a non-null result is a process handle owned here.
-                let handle = unsafe { OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, 0, pid) };
-                if handle.is_null() {
-                    return None;
-                }
-                // SAFETY: as above.
-                let process = unsafe { OwnedHandle::from_raw_handle(handle) };
-                let exe = image_path(&process)?;
-                let args = command_line(&process).unwrap_or_else(|| exe.clone());
-                Some(RawProcess { pid, exe, args })
-            })
-            .collect())
-    }
-
-    fn pids() -> IdeResult<Vec<u32>> {
-        let mut out = Vec::new();
-        // SAFETY: a snapshot handle owned here and an entry sized as the API requires.
-        unsafe {
-            let snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
-            if snapshot.is_null() || snapshot == INVALID_HANDLE_VALUE {
-                return Err(IdeError::unavailable(format!(
-                    "cannot list processes: {}",
-                    std::io::Error::last_os_error()
-                )));
-            }
-            let snapshot = OwnedHandle::from_raw_handle(snapshot);
-            let mut entry = PROCESSENTRY32W { dwSize: size_of::<PROCESSENTRY32W>() as u32, ..Default::default() };
-            let mut more = Process32FirstW(snapshot.as_raw_handle(), &mut entry);
-            while more != 0 {
-                out.push(entry.th32ProcessID);
-                more = Process32NextW(snapshot.as_raw_handle(), &mut entry);
-            }
-        }
-        Ok(out)
-    }
-
-    fn image_path(process: &OwnedHandle) -> Option<String> {
-        let mut buf = vec![0u16; 32 * 1024];
-        let mut len = buf.len() as u32;
-        // SAFETY: a live process handle with query access; `len` is the buffer's capacity.
-        let ok = unsafe {
-            QueryFullProcessImageNameW(process.as_raw_handle(), PROCESS_NAME_WIN32, buf.as_mut_ptr(), &mut len)
-        };
-        (ok != 0).then(|| String::from_utf16_lossy(&buf[..len as usize]))
-    }
-
-    /// The command line (Windows 8.1+), read with the same limited query access.
-    fn command_line(process: &OwnedHandle) -> Option<String> {
-        let mut size = 0u32;
-        // SAFETY: a size query with no buffer; it fails and reports the size it needs.
-        unsafe {
-            NtQueryInformationProcess(
-                process.as_raw_handle(),
-                ProcessCommandLineInformation,
-                std::ptr::null_mut(),
-                0,
-                &mut size,
-            )
-        };
-        if (size as usize) < size_of::<UNICODE_STRING>() {
-            return None;
-        }
-        // u64 elements keep the UNICODE_STRING header aligned.
-        let mut buf = vec![0u64; (size as usize).div_ceil(8)];
-        // SAFETY: a buffer of at least `size` bytes.
-        let status = unsafe {
-            NtQueryInformationProcess(
-                process.as_raw_handle(),
-                ProcessCommandLineInformation,
-                buf.as_mut_ptr().cast(),
-                size,
-                &mut size,
-            )
-        };
-        if status < 0 {
-            return None;
-        }
-        // SAFETY: on success the buffer starts with a UNICODE_STRING whose text lies inside it.
-        let text = unsafe {
-            let s = &*buf.as_ptr().cast::<UNICODE_STRING>();
-            if s.Buffer.is_null() {
-                return None;
-            }
-            std::slice::from_raw_parts(s.Buffer, usize::from(s.Length) / 2)
-        };
-        Some(String::from_utf16_lossy(text))
-    }
-}
-
-/// The full executable path: `comm` keeps a relative path a process was started with.
-#[cfg(target_os = "macos")]
-fn exe_path(pid: u32) -> Option<String> {
-    let mut buf = vec![0u8; libc::PROC_PIDPATHINFO_MAXSIZE as usize];
-    // SAFETY: the buffer holds `PROC_PIDPATHINFO_MAXSIZE` bytes, as the call requires.
-    let n = unsafe { libc::proc_pidpath(i32::try_from(pid).ok()?, buf.as_mut_ptr().cast(), buf.len() as u32) };
-    (n > 0).then(|| String::from_utf8_lossy(&buf[..n as usize]).into_owned())
-}
-
-#[cfg(all(unix, not(target_os = "macos")))]
-fn exe_path(_pid: u32) -> Option<String> {
-    None
+    Err(IdeError::unavailable("Attach to Process is not supported on this platform yet"))
 }

 /// Node's default inspector port, which `SIGUSR1` opens.
@@ -400,7 +244,7 @@ pub fn attachable_processes() -> IdeResult<Vec<AttachableProcess>> {
    let cwd = std::env::temp_dir();
    let native = if adapter::resolve_binary("codelldb", &cwd).is_some() { "codelldb" } else { "lldb-dap" };
    let mut out: Vec<AttachableProcess> =
-        list_processes()?.iter().filter_map(|p| classify(p, is_dotnet, is_go_binary, native)).collect();
+        list_processes()?.iter().filter_map(|p| classify(p, is_go_binary, native)).collect();
    out.sort_by(|a, b| a.kind.cmp(&b.kind).then_with(|| a.name.to_lowercase().cmp(&b.name.to_lowercase())));
    Ok(out)
 }
@@ -414,8 +258,7 @@ mod tests {
    }

    fn kind(exe: &str, args: &str) -> Option<(AttachKind, Option<u16>)> {
-        classify(&raw(exe, args), |e| e.ends_with("/Api"), |e| e.ends_with("/gosrv"), "codelldb")
-            .map(|p| (p.kind, p.port))
+        classify(&raw(exe, args), |e| e.ends_with("/gosrv"), "codelldb").map(|p| (p.kind, p.port))
    }

    #[test]
@@ -449,37 +292,11 @@ mod tests {
            kind("/Library/Frameworks/Python.framework/Versions/3.12/Resources/Python.app/Contents/MacOS/Python", "x"),
            Some((AttachKind::Python, None))
        );
-        assert_eq!(kind("/home/me/Api", "./Api"), Some((AttachKind::Dotnet, None)));
        assert_eq!(kind("/home/me/gosrv", "./gosrv"), Some((AttachKind::Go, None)));
        assert_eq!(kind("/home/me/a.out", "./a.out"), Some((AttachKind::Native, None)));
        assert!(!is_python("pythonista"));
    }

-    #[test]
-    fn detects_dotnet_hosts_and_apphosts() {
-        let dir = std::env::temp_dir().join(format!("openidea-attach-dotnet-{}", std::process::id()));
-        std::fs::create_dir_all(&dir).unwrap();
-        let app = dir.join("Api");
-        std::fs::write(&app, b"").unwrap();
-        std::fs::write(dir.join("Api.runtimeconfig.json"), b"{}").unwrap();
-        let tool = dir.join("tool");
-        std::fs::write(&tool, b"").unwrap();
-        assert!(is_dotnet(app.to_str().unwrap()));
-        assert!(!is_dotnet(tool.to_str().unwrap()));
-        assert!(is_dotnet("/usr/local/share/dotnet/dotnet"));
-        assert!(is_dotnet("dotnet"));
-        assert!(!is_dotnet("Api"));
-        std::fs::remove_dir_all(&dir).unwrap();
-    }
-
-    #[test]
-    fn skips_windows_system_programs() {
-        assert!(is_windows_system(r"C:\Windows\System32\svchost.exe"));
-        assert!(is_windows_system(r"c:\program files (x86)\App\app.exe"));
-        assert!(!is_windows_system(r"D:\src\srv\srv.exe"));
-        assert!(!is_windows_system("/usr/bin/true"));
-    }
-
    #[test]
    fn detects_go_binaries_by_buildinfo() {
        let dir = std::env::temp_dir().join(format!("openidea-attach-{}", std::process::id()));
@@ -1,58 +0,0 @@
-//! Requests of vscode-js-debug's own, beyond the Debug Adapter Protocol: what a page in a
-//! browser offers a debugger besides stepping (breakpoints on DOM events and requests).
-//! Each is a typed method; a js-debug build that lacks one answers with an error, which is
-//! reported as the feature being unavailable.
-
-use crate::session::Session;
-use crate::{DebugManager, DebugSessionId, REQUEST_TIMEOUT};
-use ide_core::{IdeError, IdeResult};
-use serde_json::{Value, json};
-
-pub(crate) const ADAPTER: &str = "js-debug";
-
-/// Whether `session` debugs a page: the child js-debug starts for a browser launch or attach.
-/// The launch's own session only owns the browser.
-pub(crate) fn is_page(session: &Session) -> bool {
-    session.adapter == ADAPTER
-        && session.parent.is_some()
-        && matches!(session.launch_type.get().map(String::as_str), Some("pwa-chrome" | "pwa-msedge"))
-}
-
-/// Waits until the adapter answered the `launch` of `session`. js-debug sets a page's session
-/// up between `configurationDone` and that answer; a request of its own that arrives then is
-/// answered and has no effect.
-async fn launched(session: &Session) -> bool {
-    let mut launched = session.launched.subscribe();
-    let answered = tokio::time::timeout(REQUEST_TIMEOUT, launched.wait_for(|answered| *answered)).await;
-    matches!(answered, Ok(Ok(_)))
-}
-
-impl DebugManager {
-    /// One of js-debug's requests for pages, sent to the page `s` once its session has started.
-    async fn js_page_request(&self, s: DebugSessionId, command: &str, arguments: Value) -> IdeResult<Value> {
-        let session = self.session(s)?;
-        if !is_page(&session) {
-            return Err(IdeError::unavailable("this debug session is not a page in a browser"));
-        }
-        if !launched(&session).await {
-            return Err(IdeError::unavailable("the page's debug session did not finish starting"));
-        }
-        session
-            .conn
-            .request_timeout(command, arguments, REQUEST_TIMEOUT)
-            .await
-            .map_err(|e| IdeError::unavailable(format!("the JavaScript debugger refused `{command}`: {e}")))
-    }
-
-    /// Breakpoints on events (`listener:click`, `instrumentation:setTimeout`) and on requests
-    /// whose URL contains one of `xhr`. The lists replace the page's previous ones.
-    pub async fn js_set_custom_breakpoints(
-        &self,
-        s: DebugSessionId,
-        ids: Vec<String>,
-        xhr: Vec<String>,
-    ) -> IdeResult<()> {
-        self.js_page_request(s, "setCustomBreakpoints", json!({ "ids": ids, "xhr": xhr })).await?;
-        Ok(())
-    }
-}
@@ -13,7 +13,6 @@ pub mod attach;
 mod cargo;
 pub mod connection;
 pub mod jdwp;
-mod js_debug;
 mod jvm_memory;
 pub mod kotlin;
 pub mod kotlin_lsp;
@@ -137,9 +136,6 @@ pub struct DebugCapabilities {
    pub jvm_instances: bool,
    /// The session can be asked for a heap dump ([`DebugManager::jvm_heap_dump`]).
    pub jvm_heap: bool,
-    /// The session debugs a page in a browser: js-debug's requests for pages apply
-    /// ([`DebugManager::js_set_custom_breakpoints`]).
-    pub js_page: bool,
 }

 /// Result of [`DebugManager::redefine_classes`].
@@ -397,16 +393,6 @@ fn no_session(s: DebugSessionId) -> IdeError {
    IdeError::not_found(format!("no debug session {}", s.0))
 }

-/// The name of a child session: the adapter's, or the parent's when it gives none. js-debug
-/// names a browser page's session after the page the browser starts on, before the URL
-/// loads (`about:blank`, or nothing in a new profile), which says nothing about what is debugged.
-fn child_name(configuration: &Value, parent: &str) -> String {
-    match configuration.get("name").and_then(Value::as_str) {
-        Some(name) if !name.trim().is_empty() && name != "about:blank" => name.to_owned(),
-        _ => parent.to_owned(),
-    }
-}
-
 /// Builds the `launch`/`attach` arguments: our fields first, then `extra_json` merged on top.
 pub fn launch_arguments(config: &LaunchConfig) -> IdeResult<Value> {
    // VS Code puts `type`, `request` and `name` in the arguments; js-debug picks launch
@@ -594,7 +580,6 @@ pub(crate) fn capabilities_from(caps: &Value) -> DebugCapabilities {
        jvm_memory: false,
        jvm_instances: false,
        jvm_heap: false,
-        js_page: false,
    }
 }

@@ -604,7 +589,6 @@ pub(crate) fn session_capabilities(session: &Session) -> DebugCapabilities {
    caps.jvm_memory = JVM_MEMORY_ADAPTERS.contains(&session.adapter.as_str());
    caps.jvm_instances = session.jvm_inspector.lock().is_some();
    caps.jvm_heap = JVM_MEMORY_ADAPTERS.contains(&session.adapter.as_str());
-    caps.js_page = js_debug::is_page(session);
    caps
 }

@@ -760,9 +744,6 @@ impl DebugManager {
            .unwrap_or_else(|| std::env::current_dir().unwrap_or_else(|_| "/".into()));
        let dbg = adapter::find_config(&self.languages, &config.adapter)
            .ok_or_else(|| IdeError::unavailable(format!("unknown debug adapter `{}`", config.adapter)))?;
-        if config.adapter == "js-debug" {
-            adapter::set_browser_profile(&mut arguments, &cwd);
-        }
        let mut spec = adapter::resolve(&dbg, cwd.clone());
        if config.adapter == kotlin::ADAPTER
            && let Some(home) = arguments
@@ -891,7 +872,8 @@ impl DebugManager {
        request: String,
        configuration: Value,
    ) -> IdeResult<()> {
-        let name = child_name(&configuration, &parent.name);
+        let name =
+            configuration.get("name").and_then(Value::as_str).map(str::to_owned).unwrap_or_else(|| parent.name.clone());
        let mut configuration = configuration;
        if let Some(obj) = configuration.as_object_mut() {
            obj.entry("request").or_insert_with(|| request.clone().into());
@@ -939,9 +921,6 @@ impl DebugManager {
            .flatten();
        let session =
            Arc::new(Session::new(id, owner, name, adapter_name, parent, request, conn, spec, io.port, io.child));
-        if let Some(launch_type) = arguments.get("type").and_then(Value::as_str) {
-            let _ = session.launch_type.set(launch_type.to_owned());
-        }
        // rdbg execs the debuggee in its own process and sends no DAP process event.
        if let Some(pid) = rdbg_pid {
            session.debuggee_pid.store(i64::from(pid), Ordering::Release);
@@ -1176,7 +1155,6 @@ impl DebugManager {
                reply.await.unwrap_or(Err(DapError::Closed))?;
            }
        }
-        s.launched.send_replace(true);
        if let Some(link) = s.jdwp_link.lock().as_ref() {
            link.release();
        }
@@ -57,8 +57,6 @@ pub(crate) struct Session {
    pub job: Mutex<Option<ide_core::process::Job>>,
    /// Set once `configurationDone` was sent; breakpoint updates go out live after that.
    pub configured: AtomicBool,
-    /// Set once the adapter answered `launch` / `attach`, after the configuration.
-    pub launched: watch::Sender<bool>,
    pub initialized: watch::Sender<bool>,
    pub startup_cancel: ide_core::CancellationToken,
    pub output_drained: watch::Sender<bool>,
@@ -91,9 +89,6 @@ pub(crate) struct Session {
    progress: Mutex<HashMap<String, TaskId>>,
    /// Relay between a Kotlin adapter and its JVM. Dropping it closes both sockets.
    pub jdwp_link: parking_lot::Mutex<Option<ide_jdwp::JdwpLink>>,
-    /// The `type` of the launch or attach request (js-debug's `pwa-node`, `pwa-chrome`); a child
-    /// session's comes from the configuration the adapter started it with.
-    pub launch_type: std::sync::OnceLock<String>,
    pub jvm_inspector: parking_lot::Mutex<Option<Arc<dyn ide_jvm_inspect::JvmInspector>>>,
    /// One inspector request per session at a time.
    pub inspect_lock: tokio::sync::Mutex<()>,
@@ -235,7 +230,6 @@ impl Session {
            #[cfg(windows)]
            job: Mutex::new(job),
            configured: AtomicBool::new(false),
-            launched: watch::channel(false).0,
            initialized: watch::channel(false).0,
            startup_cancel: ide_core::CancellationToken::new(),
            output_drained: watch::channel(true).0,
@@ -254,7 +248,6 @@ impl Session {
            resolved_paths: Mutex::new(HashMap::new()),
            progress: Mutex::new(HashMap::new()),
            jdwp_link: parking_lot::Mutex::new(None),
-            launch_type: std::sync::OnceLock::new(),
            jvm_inspector: parking_lot::Mutex::new(None),
            inspect_lock: tokio::sync::Mutex::default(),
            ended: ide_core::CancellationToken::new(),
@@ -146,10 +146,6 @@ struct Script {
    delay_initialize: Option<Duration>,
    initialized_delay: Duration,
    launch_delay: Duration,
-    /// Answer a child session's `launch` this long after its `configurationDone`, reading
-    /// requests meanwhile. Like js-debug, one of `accept` that arrives in between is answered
-    /// and has no effect: the log gets a `dropped` entry for it.
-    child_launch_delay: Duration,
    /// Leave startup pending before `initialized` (false) or after configuration (true).
    pending_startup: Option<bool>,
    startup_error: Option<&'static str>,
@@ -158,8 +154,6 @@ struct Script {
    /// `launch`, and a `configurationDone` sent while it runs is refused with `notStopped`.
    gdb15_starts_at_launch: bool,
    launch_after_configuration: bool,
-    /// Requests of the adapter's own (js-debug's `setCustomBreakpoints`…) answered with an empty body.
-    accept: &'static [&'static str],
 }

 impl Default for Script {
@@ -187,13 +181,11 @@ impl Default for Script {
            delay_initialize: None,
            initialized_delay: Duration::ZERO,
            launch_delay: Duration::ZERO,
-            child_launch_delay: Duration::ZERO,
            pending_startup: None,
            startup_error: None,
            close_during_startup: false,
            gdb15_starts_at_launch: false,
            launch_after_configuration: false,
-            accept: &[],
        }
    }
 }
@@ -226,15 +218,10 @@ impl AdapterLauncher for FakeLauncher {
 }

 async fn fake_adapter<S: AsyncRead + AsyncWrite + Unpin + Send + 'static>(stream: S, log: Log, script: Script) {
-    let (r, w) = tokio::io::split(stream);
-    // Shared with the task that answers a child's `launch` late (`child_launch_delay`).
-    let w = Arc::new(tokio::sync::Mutex::new(w));
+    let (r, mut w) = tokio::io::split(stream);
    let mut r = BufReader::new(r);
    let mut seq = 1000;
    let mut pending_launch: Option<i64> = None;
-    let mut child = false;
-    // Between `configurationDone` and the answer to `launch`.
-    let starting = Arc::new(std::sync::atomic::AtomicBool::new(false));
    let mut held: Vec<Value> = Vec::new();
    let mut stopped = false;
    let mut running = false;
@@ -243,7 +230,7 @@ async fn fake_adapter<S: AsyncRead + AsyncWrite + Unpin + Send + 'static>(stream
            let mut v: Value = $v;
            seq += 1;
            v["seq"] = seq.into();
-            framing::write_message(&mut *w.lock().await, &serde_json::to_vec(&v).unwrap()).await.unwrap();
+            framing::write_message(&mut w, &serde_json::to_vec(&v).unwrap()).await.unwrap();
        }};
    }
    macro_rules! ok {
@@ -305,7 +292,6 @@ async fn fake_adapter<S: AsyncRead + AsyncWrite + Unpin + Send + 'static>(stream
                    continue;
                }
                pending_launch = msg["seq"].as_i64();
-                child = msg["arguments"]["isChild"] == true;
                if let Some(args) = &script.run_in_terminal {
                    send!(
                        json!({"type": "request", "command": "runInTerminal", "arguments": {"kind": "integrated", "args": args, "cwd": std::env::temp_dir()}})
@@ -313,8 +299,7 @@ async fn fake_adapter<S: AsyncRead + AsyncWrite + Unpin + Send + 'static>(stream
                }
                if script.start_debugging && msg["arguments"]["isChild"] != true {
                    send!(
-                        // Like js-debug, the child's configuration repeats the launch's `type`.
-                        json!({"type": "request", "command": "startDebugging", "arguments": {"request": "launch", "configuration": {"name": "child", "isChild": true, "type": msg["arguments"]["type"]}}})
+                        json!({"type": "request", "command": "startDebugging", "arguments": {"request": "launch", "configuration": {"name": "child", "isChild": true}}})
                    );
                }
                if script.pending_startup != Some(false) {
@@ -393,21 +378,7 @@ async fn fake_adapter<S: AsyncRead + AsyncWrite + Unpin + Send + 'static>(stream
                }
                tokio::time::sleep(script.launch_delay).await;
                if let Some(l) = pending_launch.take() {
-                    let answer = json!({"type": "response", "request_seq": l, "command": "launch", "success": true});
-                    if child && !script.child_launch_delay.is_zero() {
-                        starting.store(true, Ordering::Release);
-                        let (w, starting, delay) = (w.clone(), starting.clone(), script.child_launch_delay);
-                        tokio::spawn(async move {
-                            tokio::time::sleep(delay).await;
-                            let mut answer = answer;
-                            answer["seq"] = 999_999.into();
-                            let _ = framing::write_message(&mut *w.lock().await, &serde_json::to_vec(&answer).unwrap())
-                                .await;
-                            starting.store(false, Ordering::Release);
-                        });
-                    } else {
-                        send!(answer);
-                    }
+                    send!(json!({"type": "response", "request_seq": l, "command": "launch", "success": true}));
                }
                if let Some(pid) = script.debuggee_pid {
                    let event = if script.java_process_id {
@@ -503,15 +474,9 @@ async fn fake_adapter<S: AsyncRead + AsyncWrite + Unpin + Send + 'static>(stream
            }
            "disconnect" => {
                ok!(msg, Value::Null);
-                let _ = w.lock().await.shutdown().await;
+                let _ = w.shutdown().await;
                break;
            }
-            other if script.accept.contains(&other) => {
-                if starting.load(Ordering::Acquire) {
-                    log.lock().push(json!({"type": "dropped", "command": other}));
-                }
-                ok!(msg, json!({}))
-            }
            other => send!(
                json!({"type": "response", "request_seq": msg["seq"], "command": other, "success": false, "message": "unsupported"})
            ),
@@ -940,91 +905,6 @@ async fn blocked_program_input_does_not_hold_up_shutdown() {
    assert!(h.manager.send_input(session, "later").is_err());
 }

-fn js_config(launch_type: &str) -> LaunchConfig {
-    LaunchConfig {
-        adapter: "js-debug".into(),
-        program: None,
-        args: Vec::new(),
-        extra_json: Some(format!(r#"{{"type": "{launch_type}"}}"#)),
-        ..config()
-    }
-}
-
-/// The session the adapter started under `parent`.
-async fn child_of(h: &Harness, parent: DebugSessionId) -> DebugSessionId {
-    for _ in 0..200 {
-        if let Some(child) = h.manager.sessions(Some("main")).into_iter().find(|s| s.parent == Some(parent)) {
-            return child.id;
-        }
-        tokio::time::sleep(Duration::from_millis(10)).await;
-    }
-    panic!("no child session of {parent:?}");
-}
-
-#[tokio::test]
-async fn a_browser_page_session_has_the_page_capability() {
-    let h = harness(Script { start_debugging: true, ..Script::default() });
-    let browser = h.start(js_config("pwa-chrome")).await.unwrap();
-    let page = h.manager.capabilities(child_of(&h, browser).await).unwrap();
-    assert!(page.js_page);
-    assert!(!h.manager.capabilities(browser).unwrap().js_page, "the launch itself is not a page");
-
-    let node = h.start(js_config("pwa-node")).await.unwrap();
-    let process = h.manager.capabilities(child_of(&h, node).await).unwrap();
-    assert!(!process.js_page);
-
-    let python = h.start(config()).await.unwrap();
-    let script = h.manager.capabilities(child_of(&h, python).await).unwrap();
-    assert!(!script.js_page);
-}
-
-#[tokio::test]
-async fn custom_breakpoints_are_sent_to_a_page_and_refused_elsewhere() {
-    let h = harness(Script { start_debugging: true, accept: &["setCustomBreakpoints"], ..Script::default() });
-    let browser = h.start(js_config("pwa-chrome")).await.unwrap();
-    let page = child_of(&h, browser).await;
-    h.manager.js_set_custom_breakpoints(page, vec!["listener:click".into()], vec!["api/".into()]).await.unwrap();
-    assert_eq!(requests(&h, "setCustomBreakpoints"), [json!({"ids": ["listener:click"], "xhr": ["api/"]})]);
-
-    let not_a_page = h.manager.js_set_custom_breakpoints(browser, Vec::new(), Vec::new()).await.unwrap_err();
-    assert_eq!(not_a_page.kind, ide_core::error::ErrorKind::Unavailable);
-
-    // A js-debug build without the request.
-    let old = harness(Script { start_debugging: true, ..Script::default() });
-    let browser = old.start(js_config("pwa-chrome")).await.unwrap();
-    let page = child_of(&old, browser).await;
-    let refused = old.manager.js_set_custom_breakpoints(page, Vec::new(), Vec::new()).await.unwrap_err();
-    assert_eq!(refused.kind, ide_core::error::ErrorKind::Unavailable);
-}
-
-/// js-debug answers a request of its own that reaches a page after `configurationDone` and
-/// before the page's `launch` is answered, and then does nothing with it.
-#[tokio::test]
-async fn a_page_gets_its_requests_once_its_session_has_started() {
-    let h = harness(Script {
-        start_debugging: true,
-        accept: &["setCustomBreakpoints"],
-        child_launch_delay: Duration::from_millis(150),
-        ..Script::default()
-    });
-    let browser = h.start(js_config("pwa-chrome")).await.unwrap();
-    let page = child_of(&h, browser).await;
-    // Past the page's `configurationDone`, with its `launch` still unanswered.
-    tokio::time::sleep(Duration::from_millis(50)).await;
-    h.manager.js_set_custom_breakpoints(page, vec!["listener:click".into()], Vec::new()).await.unwrap();
-    assert_eq!(requests(&h, "setCustomBreakpoints"), [json!({"ids": ["listener:click"], "xhr": []})]);
-    let dropped = h.log.lock().iter().filter(|m| m["type"] == "dropped").count();
-    assert_eq!(dropped, 0, "the request reached the page before it took requests");
-}
-
-#[test]
-fn a_child_session_is_named_by_the_adapter_unless_it_is_a_blank_page() {
-    assert_eq!(child_name(&json!({ "name": "server.js [4120]" }), "Server"), "server.js [4120]");
-    assert_eq!(child_name(&json!({ "name": "about:blank" }), "Shop in Chrome"), "Shop in Chrome");
-    assert_eq!(child_name(&json!({ "name": "" }), "Shop in Chrome"), "Shop in Chrome");
-    assert_eq!(child_name(&json!({}), "Shop in Chrome"), "Shop in Chrome");
-}
-
 #[test]
 fn launch_arguments_merge_and_defaults() {
    let mut c = config();
@@ -557,17 +557,6 @@ async fn attach_to_processes() {
            extra: |pid, _| serde_json::json!({"pid": pid}),
        },
    ];
-    // A .NET app built into `dotnet/bin` (`<OutDir>bin</OutDir>`), attached by its apphost.
-    let dotnet_app = dir.join("dotnet/bin").join(if cfg!(windows) { "Server.exe" } else { "Server" });
-    if dotnet_app.is_file() {
-        cases.push(AttachCase {
-            kind: attach::AttachKind::Dotnet,
-            command: vec![s(&dotnet_app)],
-            source: dir.join("dotnet/Program.cs"),
-            line: 1,
-            extra: |pid, _| serde_json::json!({"processId": pid, "justMyCode": true}),
-        });
-    }
    if java_server.is_some() {
        cases.insert(
            0,
@@ -753,7 +753,7 @@ impl Pool {
            return crate::oracle::OraclePool::connect(source, password, &setup).await.map(Pool::Oracle);
        }
        if source.driver == DbDriver::Snowflake {
-            return crate::snowflake::SnowflakePool::connect(source, password, setup, root).await.map(Pool::Snowflake);
+            return crate::snowflake::SnowflakePool::connect(source, password, setup).await.map(Pool::Snowflake);
        }
        let timeout = setup.connect_timeout.unwrap_or(Duration::from_secs(30));
        let init = Arc::new(setup.statements);
@@ -324,17 +324,6 @@ fn group_foreign_keys(rows: Vec<Vec<Option<String>>>, tables: &[CompletionTable]
 /// Connection target: a data source id (its configured database), or
 /// `<id>:<database>` for another database of the same server. Data source ids
 /// never contain `:`.
-/// Snowflake is HTTPS to a named host: a tunnel's local end cannot pass its certificate check.
-fn tunneled(driver: DbDriver) -> bool {
-    !matches!(driver, DbDriver::Sqlite | DbDriver::Snowflake)
-}
-
-/// The database host and port the SSH host forwards to.
-fn tunnel_target(source: &DataSource) -> (&str, u16) {
-    let port = source.port.or(source.driver.default_port()).unwrap_or_default();
-    (if source.host.trim().is_empty() { "localhost" } else { source.host.trim() }, port)
-}
-
 pub fn split_target(target: &str) -> (&str, Option<&str>) {
    match target.split_once(':') {
        Some((id, db)) if !db.is_empty() => (id, Some(db)),
@@ -666,7 +655,9 @@ impl DbManager {
        ssh_secret: Option<String>,
        shared: bool,
    ) -> IdeResult<(DataSource, Option<Arc<Tunnel>>)> {
-        let Some(ssh) = source.ssh.as_ref().filter(|s| s.enabled && tunneled(source.driver)) else {
+        // Snowflake is HTTPS to a named host: a tunnel's local end cannot pass its certificate check.
+        let tunneled = !matches!(source.driver, DbDriver::Sqlite | DbDriver::Snowflake);
+        let Some(ssh) = source.ssh.as_ref().filter(|s| s.enabled && tunneled) else {
            return Ok((source.clone(), None));
        };
        let local = |t: &Tunnel| DataSource { host: "127.0.0.1".into(), port: Some(t.port()), ..source.clone() };
@@ -677,25 +668,8 @@ impl DbManager {
                return Ok((local(&t), Some(t)));
            }
        }
-        let session = self.ssh_session(source, ssh, ssh_secret).await?;
-        let (target_host, target_port) = tunnel_target(source);
-        let t = Arc::new(Tunnel::open(session, target_host, target_port).await?);
-        if shared {
-            self.tunnels.lock().insert(source.id.clone(), t.clone());
-        }
-        Ok((local(&t), Some(t)))
-    }
-
-    /// The SSH session the tunnel of `source` goes through: its shared SSH configuration's, or one
-    /// opened with the settings typed in the data source.
-    async fn ssh_session(
-        &self,
-        source: &DataSource,
-        ssh: &DbSsh,
-        ssh_secret: Option<String>,
-    ) -> IdeResult<Arc<ide_ssh::Session>> {
        let config = ssh.config.trim();
-        Ok(if config.is_empty() {
+        let session = if config.is_empty() {
            let secret = match ssh_secret {
                Some(s) => Some(s),
                None => self.secret(source, secrets::ssh_key(&source.id), ssh.save_secret).await,
@@ -714,22 +688,14 @@ impl DbManager {
                self.ssh.set_secret(config, Some(s), save);
            }
            self.ssh.session(config).await?
-        })
-    }
-
-    /// Data Source › SSH/SSL › Test SSH Tunnel: logs in to the SSH host and checks that it reaches
-    /// the database host and port, without logging in to the database.
-    pub async fn test_tunnel(&self, source: &DataSource, ssh_secret: Option<String>) -> IdeResult<String> {
-        let source = &source.resolved()?;
-        let ssh = source
-            .ssh
-            .as_ref()
-            .filter(|s| s.enabled && tunneled(source.driver))
-            .ok_or_else(|| IdeError::invalid("This data source does not use an SSH tunnel"))?;
-        let session = self.ssh_session(source, ssh, ssh_secret).await?;
-        let (host, port) = tunnel_target(source);
-        drop(Tunnel::open(session.clone(), host, port).await?);
-        Ok(format!("{} reaches {host}:{port}", session.label()))
+        };
+        let target_port = source.port.or(source.driver.default_port()).unwrap_or_default();
+        let target_host = if source.host.trim().is_empty() { "localhost" } else { source.host.trim() };
+        let t = Arc::new(Tunnel::open(session, target_host, target_port).await?);
+        if shared {
+            self.tunnels.lock().insert(source.id.clone(), t.clone());
+        }
+        Ok((local(&t), Some(t)))
    }

    /// Connects with `source` as given (not necessarily saved): Test Connection.
@@ -1525,21 +1491,18 @@ impl DbManager {
        let Some(session) = session else { return Ok(()) };
        let mut held = session.lock().await;
        let Some(mut conn) = held.take() else { return Ok(()) };
-        if let Err(e) = conn.command(if commit { "COMMIT" } else { "ROLLBACK" }).await {
-            // Discarding a Snowflake connection doesn't end its session, which the data source's
-            // other targets share: the transaction stays open, so it stays held to be ended again.
-            if matches!(conn, conn::Held::Snowflake(..)) {
-                *held = Some(conn);
-            } else {
+        let result = async {
+            conn.command(if commit { "COMMIT" } else { "ROLLBACK" }).await?;
+            conn.restore_default().await
+        }
+        .await;
+        match result {
+            Ok(()) => Ok(()),
+            Err(e) => {
                conn.discard().await;
+                Err(e)
            }
-            return Err(e);
        }
-        if let Err(e) = conn.restore_default().await {
-            conn.discard().await;
-            return Err(e);
-        }
-        Ok(())
    }

    #[allow(clippy::too_many_arguments)]
@@ -78,8 +78,7 @@ pub(crate) fn sso_seed(key: &str, token: &str) {
    }
 }

-/// Live sessions by data source and connection settings, so the targets of one data source (its
-/// databases, the tree, consoles) opened with the same settings share one.
+/// Live sessions by their connection settings, so targets opened with the same settings share one.
 static SESSIONS: LazyLock<parking_lot::Mutex<HashMap<String, Weak<State>>>> =
    LazyLock::new(|| parking_lot::Mutex::new(HashMap::new()));

@@ -107,15 +106,6 @@ struct Lane {
    context: parking_lot::Mutex<Option<String>>,
 }

-/// What [`SnowflakePool::statement`] does when the session is gone and it signs in again.
-#[derive(Clone, Copy)]
-enum Lost<'a> {
-    /// Runs the statement again on the new session, after this `USE` when there is one.
-    Enter(Option<&'a str>),
-    /// Fails: the statement was part of a transaction that ended with the session.
-    Fail,
-}
-
 const CONSOLE: usize = 0;
 const METADATA: usize = 1;

@@ -261,12 +251,7 @@ fn gunzip(bytes: Vec<u8>) -> IdeResult<Vec<u8>> {
 }

 impl SnowflakePool {
-    pub(crate) async fn connect(
-        source: &DataSource,
-        secret: Option<&str>,
-        setup: Setup,
-        root: Option<&std::path::Path>,
-    ) -> IdeResult<Self> {
+    pub(crate) async fn connect(source: &DataSource, secret: Option<&str>, setup: Setup) -> IdeResult<Self> {
        let settings = source.snowflake();
        let endpoint = account::endpoint(source)?;
        let user = source.user.trim();
@@ -317,15 +302,9 @@ impl SnowflakePool {
            lane: CONSOLE,
        };
        // Everything that makes a session what it is, the secret included (hashed: the key is only compared).
-        // The data source and its project too: its databases share a session, but another data source
-        // with the same settings, or the same one in another project (a plugin's source has the same id
-        // in every project), gets its own: its statements and transactions are not this one's. A browser
-        // sign-in is still shared through the cached ID token.
        let key = blake3::hash(
            format!(
-                "{:?}\0{}\0{}\0{user}\0{:?}\0{}\0{}\0{}\0{}\0{:?}\0{:?}",
-                root,
-                source.id,
+                "{}\0{user}\0{:?}\0{}\0{}\0{}\0{}\0{:?}\0{:?}",
                api.address(),
                settings.auth,
                secret.unwrap_or_default(),
@@ -657,18 +636,13 @@ impl SnowflakePool {
            () = self.closed.cancelled() => return Err(closed()),
            turn = self.lane().turn.lock() => turn,
        };
-        // A `USE` needs no schema to run in, and may be what makes the schema reachable. Ending a
-        // transaction needs none either, and must not fail because the schema is gone meanwhile.
-        let context = match first_word(sql).as_str() {
-            "USE" | "COMMIT" | "ROLLBACK" => None,
-            _ => {
-                self.enter(schema, cancel).await?;
-                self.context(schema)
-            }
-        };
+        // A `USE` needs no schema to run in, and may be what makes the schema reachable.
+        if first_word(sql) != "USE" {
+            self.enter(schema, cancel).await?;
+        }
        // These can move the session to another database or schema.
        let moves = matches!(first_word(sql).as_str(), "USE" | "CALL" | "EXECUTE");
-        let result = self.statement(sql, skip, max_rows, Lost::Enter(context.as_deref()), cancel).await;
+        let result = self.statement(sql, skip, max_rows, cancel).await;
        if moves {
            *self.lane().context.lock() = None;
        }
@@ -681,14 +655,16 @@ impl SnowflakePool {
            && self.lane().context.lock().as_deref() != Some(wanted.as_str())
        {
            *self.lane().context.lock() = None;
-            // Refused (the session's role may not use this database or schema): the statement
-            // does not run, since the session is still wherever it was, which may be another
-            // target's database. Tried again with the next statement.
-            if let Err(error) = self.statement(&wanted, 0, 0, Lost::Enter(None), cancel).await {
-                return Err(IdeError {
-                    message: format!("{wanted} failed, so the statement was not run: {}", error.message),
-                    ..error
-                });
+            match self.statement(&wanted, 0, 0, cancel).await {
+                Ok(_) => {}
+                // The session's role may not use this database or schema (after `USE ROLE`, or a
+                // schema that is gone). The statement still runs, in the session's own context:
+                // it may be the `USE` that leads back, or name its objects in full. Asked again
+                // once a statement moves the session.
+                Err(refused) if refused.kind == ErrorKind::InvalidInput => {
+                    tracing::warn!("Snowflake: the session did not enter its database and schema");
+                }
+                Err(error) => return Err(error),
            }
            *self.lane().context.lock() = Some(wanted);
        }
@@ -704,11 +680,11 @@ impl SnowflakePool {
        let _turn = self.lane().turn.lock().await;
        let cancel = CancellationToken::new();
        self.enter(None, &cancel).await?;
-        self.statement("BEGIN", 0, 0, Lost::Enter(self.context(None).as_deref()), &cancel).await?;
+        self.statement("BEGIN", 0, 0, &cancel).await?;
        let changes = async {
            let mut total = 0;
            for (sql, expect_one) in statements {
-                let changed = self.statement(sql, 0, 0, Lost::Fail, &cancel).await?.affected.unwrap_or(0.0) as u64;
+                let changed = self.statement(sql, 0, 0, &cancel).await?.affected.unwrap_or(0.0) as u64;
                if *expect_one && changed != 1 {
                    return Err(IdeError::invalid(format!(
                        "{sql}: expected to change 1 row, changed {changed}; nothing was saved"
@@ -721,24 +697,22 @@ impl SnowflakePool {
        .await;
        match changes {
            Ok(total) => {
-                self.statement("COMMIT", 0, 0, Lost::Fail, &cancel).await?;
+                self.statement("COMMIT", 0, 0, &cancel).await?;
                Ok(total)
            }
            Err(error) => {
-                let _ = self.statement("ROLLBACK", 0, 0, Lost::Fail, &cancel).await;
+                let _ = self.statement("ROLLBACK", 0, 0, &cancel).await;
                Err(error)
            }
        }
    }

-    /// One statement on the session; the caller holds the session's turn. `lost`: what to do when
-    /// the session is gone and a new one is signed in to.
+    /// One statement on the session; the caller holds the session's turn.
    async fn statement(
        &self,
        sql: &str,
        skip: usize,
        max_rows: usize,
-        lost: Lost<'_>,
        cancel: &CancellationToken,
    ) -> IdeResult<QueryResult> {
        let started = Instant::now();
@@ -769,24 +743,7 @@ impl SnowflakePool {
                Ok(Outcome::Done(result)) => return Ok(*result),
                Ok(Outcome::Expired { gone }) if !renewed => {
                    renewed = true;
-                    if !gone {
-                        tokens = self.renew(&tokens).await?;
-                        continue;
-                    }
-                    if let Lost::Fail = lost {
-                        // The transaction ended with the session: nothing of it was saved.
-                        let _ = self.login().await;
-                        return Err(IdeError::new(
-                            ErrorKind::Io,
-                            "Snowflake: the session was lost during the transaction; nothing was saved",
-                        ));
-                    }
-                    // The new session is under the login's database and schema, which may be another
-                    // target's: back to this one's before the statement runs again.
-                    tokens = self.login().await?;
-                    if let Lost::Enter(Some(wanted)) = lost {
-                        self.reenter(wanted, &tokens, cancel).await?;
-                    }
+                    tokens = if gone { self.login().await? } else { self.renew(&tokens).await? };
                }
                Ok(Outcome::Expired { .. }) => {
                    return Err(IdeError::new(ErrorKind::Io, "Snowflake: the session expired; reconnect"));
@@ -796,33 +753,6 @@ impl SnowflakePool {
        }
    }

-    /// [`enter`](Self::enter) on a session just signed in to (its `tokens`), within [`statement`](Self::statement).
-    async fn reenter(&self, wanted: &str, tokens: &Tokens, cancel: &CancellationToken) -> IdeResult<()> {
-        let request_id = uuid();
-        let outcome = tokio::select! {
-            biased;
-            () = cancel.cancelled() => return Err(IdeError::cancelled()),
-            () = self.closed.cancelled() => return Err(closed()),
-            outcome = self.run(wanted, 0, 0, tokens, &request_id, Instant::now()) => outcome,
-        };
-        match outcome {
-            Ok(Outcome::Done(_)) => {
-                *self.lane().context.lock() = Some(wanted.to_owned());
-                Ok(())
-            }
-            Ok(Outcome::Expired { .. }) => {
-                Err(IdeError::new(ErrorKind::Io, "Snowflake: the session expired; reconnect"))
-            }
-            Err(error) => {
-                let error = self.shared.api.scrub.clean(error);
-                Err(IdeError {
-                    message: format!("{wanted} failed, so the statement was not run: {}", error.message),
-                    ..error
-                })
-            }
-        }
-    }
-
    async fn run(
        &self,
        sql: &str,
@@ -407,64 +407,13 @@ async fn a_lost_session_signs_in_again() {
    let (listener, port) = bind().await;
    let gone = r#"{"success":false,"code":"390114","message":"Authentication token has expired. The user must authenticate again."}"#;
    let again = r#"{"success":true,"data":{"token":"session-token-3","masterToken":"master-token-3"}}"#;
-    let status = json!({ "success": true, "data": { "rowtype": [{ "name": "status", "type": "text" }],
-        "rowset": [["Statement executed successfully."]], "queryResultFormat": "json", "statementTypeId": 0x5000 } })
-    .to_string();
-    let server = serve(listener, vec![ok(LOGIN_OK), ok(gone), ok(again), ok(status), ok(one()), ok(CLOSED_OK)]);
+    let server = serve(listener, vec![ok(LOGIN_OK), ok(gone), ok(again), ok(one()), ok(CLOSED_OK)]);
    let pool = Pool::connect(&source(port), None, None).await.unwrap();
    pool.execute("select 1", 5, &CancellationToken::new()).await.unwrap();
    pool.close().await;
    let seen = server.await.unwrap();
    assert!(seen[2].line().starts_with("POST /session/v1/login-request?"), "{}", seen[2].line());
-    // The new session enters the target's schema before the statement runs again.
-    assert_eq!(seen[3].json()["sqlText"], "USE SCHEMA \"ANALYTICS\".\"PUBLIC\"");
-    assert_eq!(seen[4].json()["sqlText"], "select 1");
-    assert_eq!(seen[4].header("authorization"), Some("Snowflake Token=\"session-token-3\""));
-}
-
-#[tokio::test]
-async fn a_lost_session_runs_the_statement_in_its_own_database_again() {
-    let (listener, port) = bind().await;
-    let gone = r#"{"success":false,"code":"390114","message":"Authentication token has expired. The user must authenticate again."}"#;
-    let again = r#"{"success":true,"data":{"token":"session-token-3","masterToken":"master-token-3"}}"#;
-    let status = || {
-        json!({ "success": true, "data": { "rowtype": [{ "name": "status", "type": "text" }],
-            "rowset": [["Statement executed successfully."]], "queryResultFormat": "json", "statementTypeId": 0x5000 } })
-        .to_string()
-    };
-    // Raw Data entered, the statement finds the session gone, a new login (under ANALYTICS),
-    // Raw Data entered again, the statement.
-    let replies = vec![ok(LOGIN_OK), ok(status()), ok(gone), ok(again), ok(status()), ok(one()), ok(CLOSED_OK)];
-    let server = serve(listener, replies);
-    let first = Pool::connect(&source(port), None, None).await.unwrap();
-    let mut other = source(port);
-    other.database = "Raw Data".into();
-    other.options.default_schema = String::new();
-    let second = Pool::connect(&other, None, None).await.unwrap();
-    second.execute("delete from t", 1, &CancellationToken::new()).await.unwrap();
-    first.close().await;
-    second.close().await;
-    let sent: Vec<String> =
-        server.await.unwrap()[1..6].iter().map(|r| r.json()["sqlText"].as_str().unwrap_or("").to_owned()).collect();
-    let raw = "USE DATABASE \"Raw Data\"";
-    assert_eq!(sent, [raw, "delete from t", "", raw, "delete from t"]);
-}
-
-#[tokio::test]
-async fn a_transaction_ends_even_when_its_schema_is_gone() {
-    let (listener, port) = bind().await;
-    let status = json!({ "success": true, "data": { "rowtype": [{ "name": "status", "type": "text" }],
-        "rowset": [["Statement executed successfully."]], "queryResultFormat": "json", "statementTypeId": 0x5000 } })
-    .to_string();
-    let server = serve(listener, vec![ok(LOGIN_OK), ok(status), ok(CLOSED_OK)]);
-    let pool = Pool::connect(&source(port), None, None).await.unwrap();
-    // The console's schema was dropped since it was picked: ending the transaction doesn't switch to it.
-    let mut console = crate::conn::Held::acquire(&pool).await.unwrap();
-    console.apply_context(Some("Dropped")).await.unwrap();
-    console.execute(&pool, "ROLLBACK", 0, &CancellationToken::new()).await.unwrap();
-    pool.close().await;
-    let seen = server.await.unwrap();
-    assert_eq!(seen[1].json()["sqlText"], "ROLLBACK");
+    assert_eq!(seen[3].header("authorization"), Some("Snowflake Token=\"session-token-3\""));
 }

 #[tokio::test]
@@ -765,7 +714,7 @@ async fn a_console_schema_is_switched_with_its_statement_and_only_when_needed()
 }

 #[tokio::test]
-async fn a_role_that_may_not_use_the_schema_runs_nothing_elsewhere() {
+async fn a_role_that_may_not_use_the_schema_still_runs_statements() {
    let status = || {
        json!({ "success": true, "data": { "rowtype": [{ "name": "status", "type": "text" }],
            "rowset": [["Statement executed successfully."]], "queryResultFormat": "json", "statementTypeId": 0x5000 } })
@@ -773,12 +722,14 @@ async fn a_role_that_may_not_use_the_schema_runs_nothing_elsewhere() {
    };
    let refused = r#"{"success":false,"code":"002043","message":"SQL compilation error:\nObject does not exist, or operation cannot be performed."}"#;
    let (listener, port) = bind().await;
-    // use role | the schema is refused, the statement is not sent | asked again, refused again |
-    // use role back, the schema is entered, the statement runs
+    // use role | the schema is refused once, the statement runs | the next one does not ask again |
+    // a role that is not granted | use role back, the schema is entered again
    let replies = vec![
        ok(LOGIN_OK),
        ok(status()),
        ok(refused),
+        ok(one()),
+        ok(one()),
        ok(refused),
        ok(status()),
        ok(status()),
@@ -789,22 +740,20 @@ async fn a_role_that_may_not_use_the_schema_runs_nothing_elsewhere() {
    let pool = Pool::connect(&source(port), None, None).await.unwrap();
    let cancel = CancellationToken::new();
    pool.execute("use role auditor", 0, &cancel).await.unwrap();
-    let error = pool.execute("delete from t", 1, &cancel).await.unwrap_err();
-    assert!(
-        error.message.contains("USE SCHEMA")
-            && error.message.contains("was not run")
-            && error.message.contains("002043"),
-        "{}",
-        error.message
-    );
-    assert!(pool.execute("select 2", 1, &cancel).await.is_err());
+    pool.execute("select 1", 1, &cancel).await.unwrap();
+    pool.execute("select 2", 1, &cancel).await.unwrap();
+    let missing = pool.execute("use role nobody", 0, &cancel).await.unwrap_err();
+    assert!(missing.message.contains("002043") && missing.message.contains("granted"), "{}", missing.message);
    pool.execute("use role analyst", 0, &cancel).await.unwrap();
    pool.execute("select 3", 1, &cancel).await.unwrap();
    pool.close().await;
    let sent: Vec<String> =
-        server.await.unwrap()[1..7].iter().map(|r| r.json()["sqlText"].as_str().unwrap().to_owned()).collect();
+        server.await.unwrap()[1..9].iter().map(|r| r.json()["sqlText"].as_str().unwrap().to_owned()).collect();
    let schema = "USE SCHEMA \"ANALYTICS\".\"PUBLIC\"";
-    assert_eq!(sent, ["use role auditor", schema, schema, "use role analyst", schema, "select 3"]);
+    assert_eq!(
+        sent,
+        ["use role auditor", schema, "select 1", "select 2", "use role nobody", "use role analyst", schema, "select 3"]
+    );
 }

 #[tokio::test]
@@ -836,45 +785,6 @@ async fn databases_of_one_data_source_share_a_login() {
    assert!(seen[4].line().starts_with("POST /session?delete=true"), "{}", seen[4].line());
 }

-#[tokio::test]
-async fn data_sources_with_the_same_settings_have_their_own_sessions() {
-    let (listener, port) = bind().await;
-    let second = r#"{"success":true,"data":{"token":"session-token-2","masterToken":"master-token-2"}}"#;
-    let server = serve(listener, vec![ok(LOGIN_OK), ok(second), ok(one()), ok(one()), ok(CLOSED_OK), ok(CLOSED_OK)]);
-    let first = Pool::connect(&source(port), None, None).await.unwrap();
-    let mut copy = source(port);
-    copy.id = format!("{}-copy", copy.id);
-    let other = Pool::connect(&copy, None, None).await.unwrap();
-    let cancel = CancellationToken::new();
-    first.execute("select 1", 1, &cancel).await.unwrap();
-    other.execute("select 2", 1, &cancel).await.unwrap();
-    first.close().await;
-    other.close().await;
-    let seen = server.await.unwrap();
-    assert!(seen[1].line().starts_with("POST /session/v1/login-request?"), "{}", seen[1].line());
-    assert_eq!(seen[2].header("authorization"), Some("Snowflake Token=\"session-token-1\""));
-    assert_eq!(seen[3].header("authorization"), Some("Snowflake Token=\"session-token-2\""));
-}
-
-#[tokio::test]
-async fn one_data_source_in_two_projects_has_a_session_in_each() {
-    let (listener, port) = bind().await;
-    let second = r#"{"success":true,"data":{"token":"session-token-2","masterToken":"master-token-2"}}"#;
-    let server = serve(listener, vec![ok(LOGIN_OK), ok(second), ok(one()), ok(one()), ok(CLOSED_OK), ok(CLOSED_OK)]);
-    // A plugin's data source has the same id in every project.
-    let first = Pool::connect(&source(port), None, Some(std::path::Path::new("/projects/a"))).await.unwrap();
-    let other = Pool::connect(&source(port), None, Some(std::path::Path::new("/projects/b"))).await.unwrap();
-    let cancel = CancellationToken::new();
-    first.execute("select 1", 1, &cancel).await.unwrap();
-    other.execute("select 2", 1, &cancel).await.unwrap();
-    first.close().await;
-    other.close().await;
-    let seen = server.await.unwrap();
-    assert!(seen[1].line().starts_with("POST /session/v1/login-request?"), "{}", seen[1].line());
-    assert_eq!(seen[2].header("authorization"), Some("Snowflake Token=\"session-token-1\""));
-    assert_eq!(seen[3].header("authorization"), Some("Snowflake Token=\"session-token-2\""));
-}
-
 #[tokio::test]
 async fn metadata_runs_on_its_own_session_beside_a_busy_console() {
    let (listener, port) = bind().await;
@@ -1,96 +0,0 @@
-//! Data Source › SSH/SSL › Test SSH Tunnel against an in-process SSH server: the SSH login and
-//! the SSH host reaching the database host and port, with no database login.
-
-use ide_core::error::ErrorKind;
-use ide_db::{DataSource, DbDriver, DbManager, DbSsh, DbSshAuth};
-use ide_ssh::{SshFiles, SshManager};
-use std::sync::Arc;
-use tokio::net::TcpListener;
-
-struct Env {
-    _tmp: tempfile::TempDir,
-    db: DbManager,
-    ssh_port: u16,
-}
-
-async fn env() -> Env {
-    let tmp = tempfile::tempdir().unwrap();
-    let root = tmp.path().to_path_buf();
-    let ssh_port = ide_ssh::testing::sshd(root.join("server"), Arc::new(|cmd| panic!("unexpected exec: {cmd}"))).await;
-    let ssh = Arc::new(SshManager::with_files(
-        root.join("ssh-secrets.json"),
-        SshFiles { known_hosts: root.join("known_hosts"), config: None },
-    ));
-    let db = DbManager::new(root.clone(), root.join("passwords.json"), root.join("history.json"), ssh);
-    Env { _tmp: tmp, db, ssh_port }
-}
-
-impl Env {
-    /// A PostgreSQL source on `127.0.0.1:<db_port>` through the test server as `dev`.
-    fn source(&self, db_port: u16) -> DataSource {
-        DataSource {
-            id: "pg".into(),
-            name: "pg".into(),
-            driver: DbDriver::Postgres,
-            host: "127.0.0.1".into(),
-            port: Some(db_port),
-            user: "app".into(),
-            ssh: Some(DbSsh {
-                enabled: true,
-                host: "127.0.0.1".into(),
-                port: Some(self.ssh_port),
-                user: "dev".into(),
-                auth: DbSshAuth::Password,
-                ..Default::default()
-            }),
-            ..Default::default()
-        }
-    }
-}
-
-/// A port something listens on (and never speaks a database protocol).
-async fn listening() -> (TcpListener, u16) {
-    let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
-    let port = listener.local_addr().unwrap().port();
-    (listener, port)
-}
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn the_tunnel_is_tested_without_a_database_login() {
-    let env = env().await;
-    let (_db, db_port) = listening().await;
-    let source = env.source(db_port);
-
-    // First contact: the host key has to be trusted, as with Test Connection.
-    let unknown = env.db.test_tunnel(&source, Some("secret".into())).await.unwrap_err();
-    assert!(unknown.message.starts_with("Unknown SSH host key"), "{unknown:?}");
-    env.db.trust_ssh_host("pg").await.unwrap();
-
-    let ok = env.db.test_tunnel(&source, Some("secret".into())).await.unwrap();
-    assert_eq!(ok, format!("[email protected]:{} reaches 127.0.0.1:{db_port}", env.ssh_port));
-
-    let wrong = env.db.test_tunnel(&source, Some("nope".into())).await.unwrap_err();
-    assert!(wrong.message.contains("SSH authentication failed"), "{}", wrong.message);
-}
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn a_database_port_the_ssh_host_cannot_reach_is_named() {
-    let env = env().await;
-    let (listener, closed) = listening().await;
-    drop(listener);
-    let source = env.source(closed);
-    let _ = env.db.test_tunnel(&source, Some("secret".into())).await;
-    env.db.trust_ssh_host("pg").await.unwrap();
-
-    let err = env.db.test_tunnel(&source, Some("secret".into())).await.unwrap_err();
-    assert!(err.message.contains(&format!("cannot reach 127.0.0.1:{closed}")), "{}", err.message);
-}
-
-#[tokio::test]
-async fn a_source_without_a_tunnel_has_nothing_to_test() {
-    let env = env().await;
-    let mut source = env.source(5432);
-    source.ssh.as_mut().unwrap().enabled = false;
-    let err = env.db.test_tunnel(&source, None).await.unwrap_err();
-    assert_eq!(err.kind, ErrorKind::InvalidInput, "{err:?}");
-}
@@ -34,7 +34,7 @@ use std::path::{Component, Path, PathBuf};

 pub const MANIFEST_FILE: &str = "plugin.toml";
 /// The plugin API (engine) version this host implements.
-pub const ENGINE_VERSION: &str = "1.8.0";
+pub const ENGINE_VERSION: &str = "1.7.0";
 /// The 0.1 API, still accepted for contribution-only packages and 0.1 components.
 pub const LEGACY_API: &str = "0.1";
 /// Marketplace categories, in the order they are shown.
@@ -166,7 +166,6 @@ pub const EVENT_KINDS: &[&str] = &[
    "editor-focused",
    "action-performed",
    "vcs-changed",
-    "problems-changed",
 ];

 impl std::fmt::Display for ActivationEvent {
@@ -373,11 +372,6 @@ impl Manifest {
            {
                self.needs_api(&format!("`{event}`"), 6)?;
            }
-            // Added after 1.7.0 shipped: a 1.7 host rejects the manifest, so the gate is the minor
-            // that carries it.
-            if matches!(event, ActivationEvent::Event(kind) if kind == "problems-changed") {
-                self.needs_api(&format!("`{event}`"), 8)?;
-            }
            if matches!(event, ActivationEvent::Event(kind) if matches!(kind.as_str(), "file-closed" | "settings-changed" | "input-mode-changed" | "run-exited" | "terminal-exited" | "content-tab-action"))
            {
                self.needs_api(&format!("`{event}`"), 4)?;
@@ -1,78 +0,0 @@
-//! Host-owned diagnostics snapshot: every `Diagnostics` event lands here, whoever
-//! emitted it and whatever window it was addressed to. Plugins read this instead of
-//! the UI-reported Problems reports, so what a plugin sees no longer depends on
-//! window lifetime, the invoking window's project, or the report loop's liveness.
-
-use ide_core::{Diagnostic, EventSink, IdeEvent, SharedSink};
-use parking_lot::RwLock;
-use std::collections::BTreeMap;
-use std::path::PathBuf;
-use std::sync::Arc;
-
-#[derive(Default)]
-pub struct DiagnosticsStore(RwLock<BTreeMap<PathBuf, BTreeMap<String, Vec<Diagnostic>>>>);
-
-impl DiagnosticsStore {
-    /// Full replacement for one (file, producer), like the event itself.
-    pub fn replace(&self, path: &PathBuf, source: &str, items: Vec<Diagnostic>) {
-        let mut map = self.0.write();
-        let sources = map.entry(path.clone()).or_default();
-        if items.is_empty() {
-            sources.remove(source);
-            if sources.is_empty() {
-                map.remove(path);
-            }
-        } else {
-            sources.insert(source.to_owned(), items);
-        }
-    }
-
-    /// Every file's diagnostics as one entry per producer.
-    pub fn problems(&self) -> Vec<(PathBuf, String, Vec<Diagnostic>)> {
-        let map = self.0.read();
-        map.iter()
-            .flat_map(|(path, sources)| {
-                sources.iter().map(move |(source, items)| (path.clone(), source.clone(), items.clone()))
-            })
-            .collect()
-    }
-
-    pub fn file(&self, path: &PathBuf) -> BTreeMap<String, Vec<Diagnostic>> {
-        self.0.read().get(path).cloned().unwrap_or_default()
-    }
-
-    /// Drops the files under `root` (their project closed; the producers will re-report
-    /// on open). Returns the number of files removed.
-    pub fn forget_root(&self, root: &PathBuf) -> usize {
-        let mut map = self.0.write();
-        let before = map.len();
-        map.retain(|path, _| !path.starts_with(root));
-        before - map.len()
-    }
-}
-
-/// Records `Diagnostics` events, then delivers them as usual.
-pub struct RecordingSink {
-    pub inner: SharedSink,
-    pub store: Arc<DiagnosticsStore>,
-}
-
-impl EventSink for RecordingSink {
-    fn emit(&self, event: IdeEvent) {
-        if let IdeEvent::Diagnostics { path, source, items } = &event {
-            self.store.replace(&path.0.clone(), source, items.clone());
-        }
-        self.inner.emit(event);
-    }
-}
-
-/// A sink whose diagnostics are recorded; the store outlives every project.
-pub type RecordSinkFactory = Box<dyn Fn(&str) -> SharedSink + Send + Sync>;
-
-/// Wraps a sink factory so every sink it creates records diagnostics.
-pub fn recording_sink_factory(store: Arc<DiagnosticsStore>, inner: crate::SinkFactory) -> crate::SinkFactory {
-    Box::new(move |window| {
-        let inner = inner(window);
-        Arc::new(RecordingSink { inner, store: store.clone() }) as SharedSink
-    })
-}
@@ -5,7 +5,6 @@

 pub mod agent_secrets;
 pub mod data_dirs;
-pub mod diagnostics_store;
 pub mod environment;
 mod formatter;
 mod java_runtime;
@@ -59,9 +58,6 @@ pub struct HostConfig {
 pub struct Host {
    pub(crate) mcp_executable: RwLock<Option<PathBuf>>,
    plugin_host: RwLock<std::sync::Weak<plugins::PluginHost>>,
-    /// Every `Diagnostics` event the host ever emitted, per file and producer:
-    /// the snapshot plugins read (`problems`), independent of windows and reports.
-    pub diagnostics: Arc<diagnostics_store::DiagnosticsStore>,
    pub mcp_reports: mcp::Reports,
    pub mcp_requests: mcp::Requests,
    /// Commands agents run in the Run tool window (`run_command`).
@@ -139,16 +135,12 @@ impl Host {
            runtime,
            project_environment,
        } = config;
-        // Every sink the host hands out records diagnostics into the shared store first.
-        let diagnostics: Arc<diagnostics_store::DiagnosticsStore> = Arc::default();
-        let sink_for: SinkFactory = diagnostics_store::recording_sink_factory(diagnostics.clone(), sink_for);
        let global_settings = SettingsStore::load(&config_dir, None);
        let ssh = Arc::new(ide_ssh::SshManager::new(data_dir.join("ssh-passwords.json")));
        ssh.set_configs(global_settings.effective().ssh.configs);
        let host = Self {
            plugin_host: RwLock::default(),
            mcp_executable: RwLock::default(),
-            diagnostics,
            mcp_reports: Default::default(),
            mcp_requests: Default::default(),
            mcp_agent_runs: Default::default(),
@@ -188,7 +180,6 @@ impl Host {
            open_locks: Default::default(),
        };
        host.apply_proxy();
-        ops::agent::move_user_mcp_values(&host);
        host
    }

@@ -296,9 +287,6 @@ impl Host {
        }
        project.files_events_active.store(false, std::sync::atomic::Ordering::Release);
        project.plugin_diagnostics.close();
-        // The producers will re-report when a project reopens; until then the snapshot
-        // must not answer for files whose project is gone.
-        self.diagnostics.forget_root(&project.root);
        if let Some(plugins) = plugins::editor_plugin_host() {
            plugins.invalidate_client_navigation(&project.root, Some(window), None);
            plugins.set_active_file(window, None);
@@ -87,7 +87,7 @@ async fn create_or_replace(call: &Call, path: PathBuf, text: Option<String>, ove
        return Ok(());
    }
    let edit = crate::ops::lsp::prepare_workspace_edit(&call.host, call.window(), edit).await?;
-    crate::ops::lsp::apply_agent_workspace_edit(&call.host, call.window(), edit).await
+    crate::ops::lsp::apply_workspace_edit(&call.host, call.window(), edit).await
 }

 /// The open document of `path`, or a transient one (`true`: close it after use).
@@ -317,7 +317,7 @@ async fn apply_op(call: &Call, op: FileOp, notes: &mut Vec<String>) -> IdeResult
                preconditions: Vec::new(),
            };
            let edit = crate::ops::lsp::prepare_workspace_edit(&host, call.window(), edit).await?;
-            crate::ops::lsp::apply_agent_workspace_edit(&host, call.window(), edit).await
+            crate::ops::lsp::apply_workspace_edit(&host, call.window(), edit).await
        }
        FileOp::Update { path: first, move_to, hunks, or } => {
            // A plain diff's other names count when its `+++` path does not exist.
@@ -400,7 +400,7 @@ async fn apply_op(call: &Call, op: FileOp, notes: &mut Vec<String>) -> IdeResult
                edit.files.push(FileEdit::Rename { from: path.into(), to: to.into() });
            }
            let edit = crate::ops::lsp::prepare_workspace_edit(&host, call.window(), edit).await?;
-            crate::ops::lsp::apply_agent_workspace_edit(&host, call.window(), edit).await?;
+            crate::ops::lsp::apply_workspace_edit(&host, call.window(), edit).await?;
            if dirty {
                notes.push(format!("{shown}: patched the unsaved editor buffer"));
            }
@@ -385,7 +385,7 @@ targetIndex, or narrow the call with a contextSnippet that shows the one you mea
        _ => None,
    });
    let (h, w) = (host.clone(), window.to_owned());
-    let written = crate::ops::lsp::apply_agent_workspace_edit(&h, &w, edit).await;
+    let written = crate::ops::lsp::apply_workspace_edit(&h, &w, edit).await;
    if let Err(e) = written {
        let hint = format!("The rename stopped while it wrote. {} Read the files again before you retry.", e.message);
        return Ok(RenameResult::failed("write_failed", hint).with_symbol(symbol));
@@ -2,7 +2,6 @@
 //! window they run on the host, next to the project they work on.
 use super::{Channel, Emit};
 use crate::Host;
-use crate::agent_secrets::{AgentSecrets, Kept};
 use crate::rpc::Dispatcher;
 use ide_agent::registry::{AgentRegistry, RegistryPaths};
 use ide_agent::{
@@ -343,77 +342,8 @@ pub async fn accept_changes(

 type McpServerMap = std::collections::BTreeMap<String, ide_core::settings::AgentMcpServer>;

-/// Where the values of the user's MCP servers are kept in [`AgentSecrets`]. A project's own
-/// servers keep their values in the project's file, where the project shares them.
-const USER_MCP_VALUES: &str = "mcp/user/";
-
-/// Every environment variable and header value of `map`, by its key in [`AgentSecrets`].
-fn mcp_values(map: &mut McpServerMap) -> Vec<(String, &mut String)> {
-    let part = |s: &str| s.replace('%', "%25").replace('/', "%2F");
-    let mut values = Vec::new();
-    for (server, cfg) in map.iter_mut() {
-        for (kind, entries) in [("env", &mut cfg.env), ("header", &mut cfg.headers)] {
-            for (name, value) in entries.iter_mut() {
-                values.push((format!("{USER_MCP_VALUES}{}/{kind}/{}", part(server), part(name)), value));
-            }
-        }
-    }
-    values
-}
-
-fn has_mcp_values(map: &McpServerMap) -> bool {
-    map.values().any(|s| s.env.values().chain(s.headers.values()).any(|v| !v.is_empty()))
-}
-
-/// Fills in the saved values. A value written in the settings file wins: an empty one stands for the saved one.
-fn fill_mcp_values(secrets: &AgentSecrets, map: &mut McpServerMap) {
-    for (key, value) in mcp_values(map) {
-        if value.is_empty()
-            && let Some(saved) = secrets.get(&key)
-        {
-            *value = saved;
-        }
-    }
-}
-
-/// Saves the values of `map` and empties them in it; values of servers and names no
-/// longer in it are forgotten.
-fn take_mcp_values(secrets: &AgentSecrets, map: &mut McpServerMap) -> IdeResult<Kept> {
-    let mut kept = Kept::Store;
-    let mut current = HashSet::new();
-    for (key, value) in mcp_values(map) {
-        if value.is_empty() {
-            secrets.delete(&key);
-        } else if secrets.get(&key).as_deref() != Some(value.as_str()) && secrets.set(&key, value)? == Kept::LocalFile {
-            kept = Kept::LocalFile;
-        }
-        value.clear();
-        current.insert(key);
-    }
-    for key in secrets.keys(USER_MCP_VALUES) {
-        if !current.contains(&key) {
-            secrets.delete(&key);
-        }
-    }
-    Ok(kept)
-}
-
-/// Values written into the user settings (by hand, by an older version, by an import) move to [`AgentSecrets`].
-pub fn move_user_mcp_values(host: &Host) {
-    let mut user = host.global_settings.effective().agents.mcp_servers;
-    if !has_mcp_values(&user) {
-        return;
-    }
-    fill_mcp_values(&host.agent_secrets, &mut user);
-    if let Err(e) = persist_mcp_map(host, None, McpScope::User, &user) {
-        tracing::warn!("MCP servers: could not move values out of the user settings: {}", e.message);
-    }
-}
-
 fn mcp_maps(host: &Host, window: &str) -> (McpServerMap, McpServerMap, Option<std::sync::Arc<crate::Project>>) {
-    move_user_mcp_values(host);
-    let mut user = host.global_settings.effective().agents.mcp_servers;
-    fill_mcp_values(&host.agent_secrets, &mut user);
+    let user = host.global_settings.effective().agents.mcp_servers;
    let project = host.project(window).ok().filter(|p| !p.light);
    let workspace = project
        .as_ref()
@@ -428,15 +358,10 @@ fn persist_mcp_map(
    scope: McpScope,
    map: &McpServerMap,
 ) -> IdeResult<()> {
-    let mut map = map.clone();
-    let kept = match scope {
-        McpScope::User => take_mcp_values(&host.agent_secrets, &mut map)?,
-        McpScope::Workspace => Kept::Store,
-    };
    let value = if map.is_empty() {
        serde_json::Value::Null
    } else {
-        serde_json::to_value(&map).map_err(|e| IdeError::invalid(e.to_string()))?
+        serde_json::to_value(map).map_err(|e| IdeError::invalid(e.to_string()))?
    };
    let event = IdeEvent::SettingsChanged { key: "agents.mcpServers".into() };
    match scope {
@@ -445,9 +370,6 @@ fn persist_mcp_map(
            for p in host.projects() {
                p.settings.reload();
                p.sink.emit(event.clone());
-                if kept == Kept::LocalFile {
-                    host.agent_secrets.notify_kept_locally(&p.sink);
-                }
            }
        }
        McpScope::Workspace => {
@@ -496,17 +418,15 @@ fn listed(
    ide_agent::mcp::servers_from_settings(user, &workspace)
 }

-/// The MCP servers agent sessions of the project at `root` get: the user's, values filled in, and
-/// the project's the user turned on.
+/// The MCP servers agent sessions of the project at `root` get: the user's, and the project's the
+/// user turned on.
 pub(crate) fn session_mcp_servers(
    settings: &ide_workspace::SettingsStore,
    approvals: &crate::trust::McpServerApprovals,
-    secrets: &AgentSecrets,
    root: &std::path::Path,
 ) -> Vec<McpServer> {
    use ide_workspace::settings::SettingsScope;
-    let mut user = settings.layer(SettingsScope::Global).agents.mcp_servers;
-    fill_mcp_values(secrets, &mut user);
+    let user = settings.layer(SettingsScope::Global).agents.mcp_servers;
    let workspace = approvals.apply(root, settings.layer(SettingsScope::Project).agents.mcp_servers);
    ide_agent::mcp::servers_from_settings(&user, &workspace)
 }
@@ -673,7 +593,6 @@ mod tests {

    #[test]
    fn sessions_get_the_users_servers_and_the_projects_turned_on_ones() {
-        ide_ssh::secrets::testing::use_memory_store();
        let tmp = tempfile::tempdir().unwrap();
        let (config, root) = (tmp.path().join("config"), tmp.path().join("project"));
        std::fs::create_dir_all(&config).unwrap();
@@ -686,7 +605,6 @@ mod tests {
        .unwrap();
        let settings = ide_workspace::SettingsStore::load(&config, Some(&root));
        let approvals = crate::trust::McpServerApprovals::load(&tmp.path().join("data"));
-        let secrets = AgentSecrets::new(&tmp.path().join("data"));
        let on = |servers: Vec<McpServer>| -> Vec<(McpScope, String, String)> {
            servers
                .into_iter()
@@ -695,27 +613,13 @@ mod tests {
                .collect()
        };
        assert_eq!(
-            on(session_mcp_servers(&settings, &approvals, &secrets, &root)),
+            on(session_mcp_servers(&settings, &approvals, &root)),
            [(McpScope::User, "shared".to_owned(), "user-cmd".to_owned())]
        );

-        // A user server's saved values reach the session; the file keeps only the names.
-        std::fs::write(
-            config.join("settings.toml"),
-            "[agents.mcpServers.keyed]\ncommand = \"k\"\nenv = { TOKEN = \"\" }\n",
-        )
-        .unwrap();
-        secrets.set("mcp/user/keyed/env/TOKEN", "saved-user").unwrap();
-        settings.reload();
-        let keyed = session_mcp_servers(&settings, &approvals, &secrets, &root);
-        let keyed = keyed.iter().find(|s| s.name == "keyed").unwrap();
-        assert_eq!(keyed.env[0].value, "saved-user");
-        std::fs::write(config.join("settings.toml"), "[agents.mcpServers.shared]\ncommand = \"user-cmd\"\n").unwrap();
-        settings.reload();
-
        let extra = settings.layer(ide_workspace::settings::SettingsScope::Project).agents.mcp_servers["extra"].clone();
        approvals.approve(&root, "extra", &extra).unwrap();
-        assert!(on(session_mcp_servers(&settings, &approvals, &secrets, &root)).contains(&(
+        assert!(on(session_mcp_servers(&settings, &approvals, &root)).contains(&(
            McpScope::Workspace,
            "extra".to_owned(),
            "extra".to_owned()
@@ -15,7 +15,6 @@ use ide_build::{BuildModel, BuildTool, SyncOptions, SyncProgress};
 use ide_core::settings::Settings;
 use ide_core::{DocId, FileEdit, IdeError, IdeEvent, IdeResult, Location, Pos, Range, RequestId, WorkspaceEdit};
 use std::path::Path;
-use std::sync::Arc;

 fn join_err(e: tokio::task::JoinError) -> IdeError {
    IdeError::internal(e.to_string())
@@ -331,61 +330,21 @@ pub async fn build_sync(
    // holds for Gradle: it reuses its cached classpath on restart, so a
    // dependency added to `build.gradle` stays unresolved until told to sync.
    let lsp = project.lsp.clone();
-    let documents = project.documents.clone();
    tokio::spawn(async move {
        if profiles_changed {
            // jdtls takes the profiles from its Maven settings (see `ide_sdk::maven_profiles`).
            lsp.reconfigure().await;
        }
-        let first = updates.first().cloned();
        for file in updates {
            let uri = ide_lsp::path_to_uri_string(&file);
            if let Err(e) = lsp.java_update_project_configs(&file, vec![uri]).await {
                tracing::debug!("java/projectConfigurationsUpdate: {e}");
            }
        }
-        let changed = {
-            let lsp = lsp.clone();
-            tokio::task::spawn_blocking(move || lsp.changed_library_archives()).await.unwrap_or_default()
-        };
-        if let Some(file) = first
-            && let Err(e) = lsp.java_refresh_archives(&file, &changed).await
-        {
-            tracing::debug!("openidea.java.refreshArchives: {e}");
-        }
-        refresh_library_classes(&lsp, &documents).await;
    });
    Ok(model)
 }

-/// Open library classes whose jar was replaced in place (a SNAPSHOT installed
-/// again keeps its path) show the new contents, like a reopened one.
-async fn refresh_library_classes(lsp: &Arc<ide_lsp::LspManager>, documents: &Arc<ide_workspace::Documents>) {
-    let changed = {
-        let (lsp, documents) = (lsp.clone(), documents.clone());
-        tokio::task::spawn_blocking(move || {
-            documents
-                .open_documents()
-                .into_iter()
-                .filter_map(|doc| Some((doc, documents.virtual_uri(doc).ok().flatten()?)))
-                .filter(|(_, uri)| lsp.library_class_changed(uri))
-                .collect::<Vec<_>>()
-        })
-        .await
-        .unwrap_or_default()
-    };
-    for (doc, uri) in changed {
-        match lsp.virtual_document(&uri).await {
-            Ok(vd) => {
-                if let Err(e) = documents.replace_virtual(doc, &vd.text, &vd.encoding, vd.has_bom) {
-                    tracing::debug!("refreshing {uri}: {e}");
-                }
-            }
-            Err(e) => tracing::debug!("refreshing {uri}: {e}"),
-        }
-    }
-}
-
 /// The POM declaring `dependency` for the Maven module `pom` (project-relative): the
 /// module's own, else its nearest parent in the project; its path, text and declaration.
 fn declaring_pom(
@@ -1026,38 +985,6 @@ mod build_tool_settings_tests {
        }
    }

-    /// Changing Project JDK updates the next Maven build without reopening the project.
-    #[test]
-    fn changing_project_jdk_updates_the_next_maven_build() {
-        let tmp = tempfile::tempdir().unwrap();
-        let root = dunce::canonicalize(tmp.path()).unwrap();
-        std::fs::write(
-            root.join("pom.xml"),
-            r#"<project><modelVersion>4.0.0</modelVersion><groupId>test</groupId><artifactId>app</artifactId><version>1</version></project>"#,
-        )
-        .unwrap();
-        for (name, version) in [("jdk8", "1.8"), ("jdk21", "21")] {
-            let home = root.join(name);
-            std::fs::create_dir_all(home.join("bin")).unwrap();
-            std::fs::write(home.join("bin").join(if cfg!(windows) { "java.exe" } else { "java" }), "").unwrap();
-            std::fs::write(home.join("release"), format!("JAVA_VERSION=\"{version}\"\n")).unwrap();
-        }
-
-        let mut settings = Settings::default();
-        settings.languages.java.maven.runner_jre.clear();
-        for name in ["jdk8", "jdk21"] {
-            settings.languages.java.jdk = name.into();
-            let expected = root.join(name);
-            let model = load(&root, &root.join("cache"), &settings);
-            assert_eq!(model.maven.as_ref().unwrap().projects[0].env["JAVA_HOME"], expected.to_string_lossy());
-            let plan = compile::plan(&root, &model, BuildKind::Build, None, None).unwrap();
-            assert!(!plan.steps.is_empty());
-            for step in plan.steps {
-                assert_eq!(step.env["JAVA_HOME"], expected.to_string_lossy());
-            }
-        }
-    }
-
    #[test]
    fn model_for_sync_tasks_and_compile_uses_gradle_settings() {
        let tmp = tempfile::tempdir().unwrap();
@@ -1092,6 +1019,7 @@ mod maven_completion_tests {
    use ide_build::maven::completion::PomCompletionKind;
    use ide_core::CancellationToken;
    use ide_workspace::dependencies::DependencyVersionSource;
+    use std::sync::Arc;

    /// Cache answers the test plants before completing, so the op's Central
    /// lookups hit the session cache and the network is never reached.
@@ -42,10 +42,6 @@ pub(crate) fn register(d: &mut Dispatcher) {
        );
        test(&c.host, &c.window, source, password, ssh_secret).await
    });
-    d.add("db_test_tunnel", |c| async move {
-        let (source, ssh_secret) = (c.arg::<DataSource>("source")?, c.arg::<Option<String>>("sshSecret")?);
-        test_tunnel(&c.host, &c.window, source, ssh_secret).await
-    });
    d.add("db_set_ssh_secret", |c| async move {
        let (id, secret, save) = (c.arg::<String>("id")?, c.arg::<Option<String>>("secret")?, c.arg::<bool>("save")?);
        set_ssh_secret(&c.host, &c.window, &id, secret, save).await
@@ -216,17 +212,6 @@ pub async fn test(
    db.test(&source, password, ssh_secret).await
 }

-/// Checks the SSH tunnel of `source` alone: SSH login and the SSH host reaching the database.
-pub async fn test_tunnel(
-    host: &Host,
-    window: &str,
-    source: DataSource,
-    ssh_secret: Option<String>,
-) -> IdeResult<String> {
-    let db = host.project(window)?.db.clone();
-    db.test_tunnel(&source, ssh_secret).await
-}
-
 /// Remembers the SSH password / key passphrase of a data source (see `set_password`).
 pub async fn set_ssh_secret(host: &Host, window: &str, id: &str, secret: Option<String>, save: bool) -> IdeResult<()> {
    let db = host.project(window)?.db.clone();
@@ -372,16 +372,6 @@ pub async fn debug_restart_frame(host: &Host, _window: &str, session: DebugSessi
    host.debugger.restart_frame(session, frame_id).await
 }

-pub async fn debug_js_custom_breakpoints(
-    host: &Host,
-    _window: &str,
-    session: DebugSessionId,
-    ids: Vec<String>,
-    xhr: Vec<String>,
-) -> IdeResult<()> {
-    host.debugger.js_set_custom_breakpoints(session, ids, xhr).await
-}
-
 pub fn debug_capabilities(host: &Host, _window: &str, session: DebugSessionId) -> IdeResult<DebugCapabilities> {
    host.debugger.capabilities(session)
 }
@@ -598,9 +588,6 @@ pub(crate) fn register(d: &mut Dispatcher) {
        debug_restart_frame(&c.host, &c.window, c.arg("session")?, c.arg("frameId")?).await
    });
    d.add("debug_capabilities", |c| async move { debug_capabilities(&c.host, &c.window, c.arg("session")?) });
-    d.add("debug_js_custom_breakpoints", |c| async move {
-        debug_js_custom_breakpoints(&c.host, &c.window, c.arg("session")?, c.arg("ids")?, c.arg("xhr")?).await
-    });
    d.add("debug_set_function_breakpoints", |c| async move {
        debug_set_function_breakpoints(&c.host, &c.window, c.arg("breakpoints")?).await
    });
@@ -188,14 +188,8 @@ pub async fn remote_download_into(
    r
 }

-/// `password`: an FTP password typed in the settings but not applied yet.
-pub async fn deploy_test_connection(
-    state: &Host,
-    connection: FsConnection,
-    path: String,
-    password: Option<String>,
-) -> IdeResult<()> {
-    state.remote.test_connection_with(&connection, &path, password).await
+pub async fn deploy_test_connection(state: &Host, connection: FsConnection, path: String) -> IdeResult<()> {
+    state.remote.test_connection(&connection, &path).await
 }

 pub(crate) fn register(d: &mut crate::rpc::Dispatcher) {
@@ -237,6 +231,6 @@ pub(crate) fn register(d: &mut crate::rpc::Dispatcher) {
        remote_rename(&c.host, c.arg("connection")?, c.arg("from")?, c.arg("to")?).await
    });
    d.add("deploy_test_connection", |c| async move {
-        deploy_test_connection(&c.host, c.arg("connection")?, c.arg("path")?, c.arg("password")?).await
+        deploy_test_connection(&c.host, c.arg("connection")?, c.arg("path")?).await
    });
 }
@@ -96,19 +96,18 @@ async fn resolve_launch(
    let cancel = cancel.clone();
    tokio::task::spawn_blocking(move || {
        let _external_build = external_build;
-        let local_repo = ide_sdk::apply::maven_local_repository(&project.root, &settings);
        let built = if delegated {
-            let rebuild_on_jdt_errors = rebuild_on_jdt_errors(policy, prefer_maven, info.error_count);
+            let policy = delegated_policy(policy, prefer_maven, info.error_count);
            let outputs = project.java_launch_snapshots.lock().build(
                &project.root,
                &model,
                &module,
-                cache::BuildOptions { test, policy, rebuild_on_jdt_errors },
-                local_repo.clone(),
+                cache::BuildOptions { test, policy },
+                ide_sdk::apply::maven_local_repository(&project.root, &settings),
                &cancel,
            )?;
            let copies = use_snapshot(&mut info, &outputs.originals, &outputs.snapshot);
-            apply_external_build_result(&mut info, outputs.failure, outputs.authoritative);
+            apply_external_build_result(&mut info, outputs.failure, policy == BuildPolicy::Rebuild);
            copies
        } else if external {
            let built = compile::build_for_launch(&project.root, &model, &module, test, build_kind, &cancel)?;
@@ -124,22 +123,10 @@ async fn resolve_launch(
            Vec::new()
        };
        let mut class_paths: Vec<String> = built.iter().map(|p| p.to_string_lossy().into_owned()).collect();
-        if delegated {
-            // m2e runs inside jdtls on the server JDK and can resolve a different
-            // Maven profile/classifier than the module build. Ask the same Maven
-            // process that built the module for its runtime/test dependencies.
-            let maven_cp = compile::module_classpath(
-                &project.root,
-                &model,
-                &module,
-                test,
-                local_repo,
-                &project.build_cache_dir(),
-                &cancel,
-            );
-            merge_maven_launch_classpath(&mut class_paths, &mut info, maven_cp)?;
-        } else {
-            append_unique_class_paths(&mut class_paths, std::mem::take(&mut info.class_paths));
+        for p in std::mem::take(&mut info.class_paths) {
+            if !class_paths.iter().any(|c| same_entry(c, &p, cfg!(windows))) {
+                class_paths.push(p);
+            }
        }
        info.class_paths = class_paths;
        apply_library_classpath(&mut info, &project.root, &settings.project_structure.libraries, test);
@@ -204,18 +191,21 @@ async fn resolve_launch(
 /// With Settings › Maven › Delegate IDE build/run actions to Maven, javac's verdict replaces
 /// JDT's. Classes JDT wrote for sources with errors look up to date to Maven's incremental
 /// compiler, so a launch JDT reports errors for recompiles everything.
-fn rebuild_on_jdt_errors(policy: BuildPolicy, prefer_maven: bool, jdt_errors: u32) -> bool {
-    prefer_maven && jdt_errors > 0 && matches!(policy, BuildPolicy::Automatic | BuildPolicy::Make)
+fn delegated_policy(policy: BuildPolicy, prefer_maven: bool, jdt_errors: u32) -> BuildPolicy {
+    if prefer_maven && jdt_errors > 0 && matches!(policy, BuildPolicy::Automatic | BuildPolicy::Make) {
+        BuildPolicy::Rebuild
+    } else {
+        policy
+    }
 }

-fn apply_external_build_result(info: &mut JavaLaunchInfo, failure: Option<String>, authoritative: bool) {
+fn apply_external_build_result(info: &mut JavaLaunchInfo, failure: Option<String>, clean: bool) {
    info.build = Some(if let Some(failure) = failure {
        info.hints.push(failure);
        JavaBuildStatus::Failed
-    } else if authoritative {
-        // A clean rebuild or a fingerprint-verified snapshot is authoritative. JDT diagnostics
-        // may describe an older output or its own classpath, so they must not mark this launch
-        // as failed after Maven has produced usable classes.
+    } else if clean {
+        // A clean external build recompiled every source; JDT's diagnostics still describe
+        // the previous output (and reject sources javac accepts, e.g. a package mismatch).
        info.errors.clear();
        info.error_count = 0;
        JavaBuildStatus::Succeeded
@@ -296,44 +286,6 @@ fn same_entry(a: &str, b: &str, windows: bool) -> bool {
    a == b || entry_key(a, windows) == entry_key(b, windows)
 }

-/// Merge the Maven launch classpath without turning a recoverable probe failure into a
-/// failed launch. Cancellation still propagates; ordinary failures keep jdtls' classpath
-/// and leave the reason in the run console.
-fn merge_maven_launch_classpath(
-    class_paths: &mut Vec<String>,
-    info: &mut JavaLaunchInfo,
-    classpath: IdeResult<String>,
-) -> IdeResult<()> {
-    match classpath {
-        Ok(classpath) => {
-            append_unique_class_paths(
-                class_paths,
-                std::env::split_paths(&classpath).map(|path| path.to_string_lossy().into_owned()),
-            );
-            Ok(())
-        }
-        Err(error) if error.kind == ErrorKind::Cancelled => Err(error),
-        Err(error) => {
-            info.hints.push(format!(
-                "Maven launch classpath resolution failed; using the Java language server classpath instead:\n{}",
-                error.message
-            ));
-            append_unique_class_paths(class_paths, std::mem::take(&mut info.class_paths));
-            Ok(())
-        }
-    }
-}
-
-/// Append entries without changing their precedence; `same_entry` also catches
-/// Windows case-insensitive duplicates that would otherwise lengthen the command.
-fn append_unique_class_paths(class_paths: &mut Vec<String>, entries: impl IntoIterator<Item = String>) {
-    for entry in entries {
-        if !class_paths.iter().any(|existing| same_entry(existing, &entry, cfg!(windows))) {
-            class_paths.push(entry);
-        }
-    }
-}
-
 fn use_snapshot(info: &mut JavaLaunchInfo, built: &[PathBuf], snapshot: &std::path::Path) -> Vec<PathBuf> {
    use_snapshot_on(info, built, snapshot, cfg!(windows))
 }
@@ -458,36 +410,14 @@ mod tests {

    #[test]
    fn delegated_launches_with_jdt_errors_recompile_with_maven() {
-        assert!(rebuild_on_jdt_errors(BuildPolicy::Make, true, 1));
-        assert!(rebuild_on_jdt_errors(BuildPolicy::Automatic, true, 2));
-        assert!(!rebuild_on_jdt_errors(BuildPolicy::Make, true, 0));
-        assert!(!rebuild_on_jdt_errors(BuildPolicy::Make, false, 1));
-        assert!(!rebuild_on_jdt_errors(BuildPolicy::MakeAndContinueOnErrors, true, 1));
-    }
-
-    #[test]
-    fn maven_classpath_probe_failure_falls_back_to_jdtls_classpaths() {
-        let maven = std::env::join_paths(["maven.jar", "snapshot.jar"]).unwrap().to_string_lossy().into_owned();
-        let mut class_paths = vec!["snapshot.jar".to_owned()];
-        let mut info =
-            JavaLaunchInfo { class_paths: vec!["snapshot.jar".into(), "jdtls.jar".into()], ..Default::default() };
-        merge_maven_launch_classpath(&mut class_paths, &mut info, Ok(maven)).unwrap();
-        assert_eq!(class_paths, ["snapshot.jar", "maven.jar"]);
-
-        merge_maven_launch_classpath(&mut class_paths, &mut info, Err(IdeError::internal("offline dependency")))
-            .unwrap();
-        assert_eq!(class_paths, ["snapshot.jar", "maven.jar", "jdtls.jar"]);
-        assert!(info.hints[0].contains("offline dependency"), "{:?}", info.hints);
-    }
-
-    #[test]
-    fn cancelled_maven_classpath_probe_propagates_without_fallback() {
-        let mut class_paths = vec!["snapshot.jar".to_owned()];
-        let mut info = JavaLaunchInfo { class_paths: vec!["jdtls.jar".into()], ..Default::default() };
-        let error = merge_maven_launch_classpath(&mut class_paths, &mut info, Err(IdeError::cancelled())).unwrap_err();
-        assert_eq!(error.kind, ErrorKind::Cancelled);
-        assert_eq!(class_paths, ["snapshot.jar"]);
-        assert!(info.hints.is_empty());
+        assert_eq!(delegated_policy(BuildPolicy::Make, true, 1), BuildPolicy::Rebuild);
+        assert_eq!(delegated_policy(BuildPolicy::Automatic, true, 2), BuildPolicy::Rebuild);
+        assert_eq!(delegated_policy(BuildPolicy::Make, true, 0), BuildPolicy::Make);
+        assert_eq!(delegated_policy(BuildPolicy::Make, false, 1), BuildPolicy::Make);
+        assert_eq!(
+            delegated_policy(BuildPolicy::MakeAndContinueOnErrors, true, 1),
+            BuildPolicy::MakeAndContinueOnErrors
+        );
    }

    #[test]
@@ -531,7 +461,7 @@ mod tests {
    }

    #[test]
-    fn authoritative_external_result_clears_stale_jdt_errors() {
+    fn clean_external_build_clears_stale_jdt_errors() {
        let mut info = JavaLaunchInfo {
            error_count: 7,
            errors: vec![ide_lsp::jdtls::JavaCompileError {
@@ -14,10 +14,6 @@ pub(super) struct Outputs {
    pub originals: Vec<PathBuf>,
    #[serde(skip)]
    pub failure: Option<String>,
-    /// Whether this result replaces jdtls diagnostics with a clean Maven build or a
-    /// verified snapshot. It is runtime-only because reuse is determined per launch.
-    #[serde(skip)]
-    pub authoritative: bool,
 }

 impl Outputs {
@@ -46,9 +42,6 @@ pub(super) fn has_record(root: &Path, cache: &Path, module: &Path) -> bool {
 pub(super) struct BuildOptions {
    pub test: bool,
    pub policy: BuildPolicy,
-    /// A JDT error makes a cache miss rebuild, but it must not prevent an unchanged
-    /// snapshot from being reused on the next launch.
-    pub rebuild_on_jdt_errors: bool,
 }

 /// Owned by Project: running JVMs may still load superseded outputs until it drops.
@@ -82,7 +75,7 @@ impl Session {
        cancel: &CancellationToken,
    ) -> IdeResult<Outputs> {
        self.initialize();
-        let BuildOptions { test, policy, rebuild_on_jdt_errors } = options;
+        let BuildOptions { test, policy } = options;
        let cache = &self.cache;
        let record =
            record_path(root, cache, module, test).ok_or_else(|| IdeError::internal("launch outside project"))?;
@@ -122,14 +115,8 @@ impl Session {
            && outputs.reusable(&before, &snapshots)
        {
            tracing::info!(module = %module.display(), test, "Reusing Maven launch snapshot");
-            let mut outputs = previous.unwrap();
-            outputs.authoritative = true;
-            return Ok(outputs);
+            return Ok(previous.unwrap());
        }
-        // JDT can report errors from its own classpath while the last Maven snapshot is
-        // still valid. Reuse that snapshot first; only a cache miss needs the expensive
-        // clean rebuild that replaces JDT's error-stub classes.
-        let policy = if rebuild_on_jdt_errors { BuildPolicy::Rebuild } else { policy };
        // Retain a non-reusable record even on failure, so removing the final mixed
        // source still delegates to Maven to clean its old classes on the next launch.
        fs::create_dir_all(record.parent().unwrap())?;
@@ -169,13 +156,7 @@ impl Session {
        if cancel.is_cancelled() {
            return Err(IdeError::cancelled());
        }
-        let mut outputs = Outputs {
-            fingerprint: None,
-            snapshot,
-            originals,
-            failure: built.failure,
-            authoritative: policy == BuildPolicy::Rebuild,
-        };
+        let mut outputs = Outputs { fingerprint: None, snapshot, originals, failure: built.failure };
        if outputs.failure.is_none() && before.is_some() && before == after {
            outputs.fingerprint = before;
            fs::create_dir_all(record.parent().unwrap())?;
@@ -353,48 +334,6 @@ mod tests {
        );
    }

-    #[test]
-    fn jdt_errors_reuse_an_unchanged_snapshot_and_rebuild_only_on_a_cache_miss() {
-        let dir = tempfile::tempdir().unwrap();
-        let root = dir.path();
-        let model = fixture(root);
-        let cancel = CancellationToken::new();
-        let mut session = Session::new(root.join("cache"));
-        let first = session.build(root, &model, root, BuildOptions::default(), None, &cancel).unwrap();
-        assert!(!first.authoritative);
-
-        let reused = session
-            .build(
-                root,
-                &model,
-                root,
-                BuildOptions { rebuild_on_jdt_errors: true, ..Default::default() },
-                None,
-                &cancel,
-            )
-            .unwrap();
-        assert_eq!(reused.snapshot, first.snapshot);
-        assert!(reused.authoritative);
-        assert_eq!(fs::read_to_string(root.join("calls")).unwrap().lines().count(), 1);
-
-        fs::write(root.join("src/main/kotlin/Main.kt"), "updated").unwrap();
-        let rebuilt = session
-            .build(
-                root,
-                &model,
-                root,
-                BuildOptions { rebuild_on_jdt_errors: true, ..Default::default() },
-                None,
-                &cancel,
-            )
-            .unwrap();
-        assert_ne!(rebuilt.snapshot, first.snapshot);
-        assert!(rebuilt.authoritative);
-        let calls = fs::read_to_string(root.join("calls")).unwrap();
-        assert_eq!(calls.lines().count(), 2);
-        assert!(calls.lines().last().unwrap().contains("clean"));
-    }
-
    #[test]
    fn successful_snapshots_reuse_across_close_and_rebuild_for_changes_missing_outputs_or_failure() {
        let dir = tempfile::tempdir().unwrap();
@@ -544,13 +483,7 @@ mod tests {
        fs::write(snapshots.join("launch-file"), "keep").unwrap();
        let record = cache.join("java-launch/records/deep/module/test.json");
        fs::create_dir_all(record.parent().unwrap()).unwrap();
-        let outputs = Outputs {
-            fingerprint: None,
-            snapshot: retained.clone(),
-            originals: Vec::new(),
-            failure: None,
-            authoritative: false,
-        };
+        let outputs = Outputs { fingerprint: None, snapshot: retained.clone(), originals: Vec::new(), failure: None };
        fs::write(record, serde_json::to_vec(&outputs).unwrap()).unwrap();
        let mut session = Session::new(cache);
        session.initialize();
@@ -74,15 +74,9 @@ pub async fn lsp_completion(
    host.end_request(request);
    // Plugin providers (`[[contributes.providers]]`) add theirs.
    let Some((plugins, d)) = plugin_providers(host, window, doc, ProviderKind::Completion) else { return result };
-    let (covered, items) = plugin_call(move || plugins.provide_completion_for_editor(&d, pos, trigger.as_deref()))
-        .await
-        .unwrap_or_default();
+    let items = plugin_call(move || plugins.provide_completion(&d, pos, trigger.as_deref())).await.unwrap_or_default();
    if items.is_empty() {
-        return if covered {
-            Ok(result.unwrap_or(CompletionList { is_incomplete: true, items: Vec::new() }))
-        } else {
-            result
-        };
+        return Ok(result.unwrap_or(CompletionList { is_incomplete: true, items: Vec::new() }));
    }
    let mut list = result.unwrap_or(CompletionList { is_incomplete: false, items: Vec::new() });
    list.items.extend(items.into_iter().map(|(_, item)| plugin_completion(item)));
@@ -315,13 +309,9 @@ pub async fn lsp_signature_help(host: &Host, window: &str, doc: DocId, pos: Pos)

 pub async fn lsp_goto(host: &Host, window: &str, doc: DocId, pos: Pos, kind: GotoKind) -> IdeResult<Vec<Location>> {
    let target = position_document(host, window, doc, pos).await?;
-    // ⌘B on a declaration shows its usages, also when a plugin's index links the name elsewhere
-    // (a MyBatis mapper method to its XML statement): the server's answer comes along for the
-    // editor to tell.
    if target == doc
        && kind == GotoKind::Definition
        && let Some(plugins) = crate::plugins::editor_plugin_host()
-        && !on_declaration_name(host, window, doc, pos).await
    {
        let project = host.project(window)?;
        // A notebook cell is a language-server document only: no plugin navigates in it.
@@ -362,30 +352,6 @@ pub async fn lsp_goto(host: &Host, window: &str, doc: DocId, pos: Pos, kind: Got
    definition_targets(result, found, in_string)
 }

-/// Whether the syntax tree puts the identifier at `pos` as a declaration's name (`int f()`'s `f`).
-async fn on_declaration_name(host: &Host, window: &str, doc: DocId, pos: Pos) -> bool {
-    let Ok(project) = host.project(window) else { return false };
-    blocking(move || {
-        let snap = project.documents.text_snapshot(doc)?;
-        if snap.large {
-            return Ok(false);
-        }
-        let s = ide_syntax::Snapshot::doc(doc, snap.version, &snap.language, &snap.text);
-        let cancel = ide_core::CancellationToken::new();
-        let Ok(Some(at)) = project.structure.node_at(&s, Range::new(pos, pos), &cancel) else { return Ok(false) };
-        Ok(is_declaration_name(&at))
-    })
-    .await
-    .unwrap_or(false)
-}
-
-fn is_declaration_name(at: &ide_syntax::NodeAt) -> bool {
-    at.node.field.as_deref() == Some("name")
-        && at.ancestors.first().is_some_and(|parent| {
-            ["declaration", "definition", "declarator"].iter().any(|kind| parent.kind.ends_with(kind))
-        })
-}
-
 async fn in_string_literal(host: &Host, window: &str, doc: DocId, pos: Pos) -> bool {
    let Ok(project) = host.project(window) else { return false };
    blocking(move || {
@@ -1517,38 +1483,23 @@ pub async fn lsp_restart_named(host: &Host, name: &str) -> IdeResult<()> {
 pub async fn apply_workspace_edit(host: &Host, window: &str, edit: WorkspaceEdit) -> IdeResult<()> {
    let project = host.project(window)?;
    blocking(move || {
-        record_before_multi_file_edit(&project, &edit);
+        // Multi-file refactorings leave a Local History point to go back to.
+        let paths: Vec<&std::path::Path> = edit
+            .files
+            .iter()
+            .filter_map(|f| match f {
+                ide_core::FileEdit::Edit { path, .. } => Some(&**path),
+                _ => None,
+            })
+            .collect();
+        if edit.files.len() > 1 {
+            project.record_before_refactoring(&paths, "Apply changes");
+        }
        apply_edit(&project.documents, &edit)
    })
    .await
 }

-/// [`apply_workspace_edit`] for the MCP server's tools: undoable the same way, but the UI does
-/// not announce it as a refactoring.
-pub async fn apply_agent_workspace_edit(host: &Host, window: &str, edit: WorkspaceEdit) -> IdeResult<()> {
-    let project = host.project(window)?;
-    blocking(move || {
-        record_before_multi_file_edit(&project, &edit);
-        project.documents.apply_agent_workspace_edit(&edit)
-    })
-    .await
-}
-
-/// Multi-file edits leave a Local History point to go back to.
-fn record_before_multi_file_edit(project: &crate::Project, edit: &WorkspaceEdit) {
-    let paths: Vec<&std::path::Path> = edit
-        .files
-        .iter()
-        .filter_map(|f| match f {
-            ide_core::FileEdit::Edit { path, .. } => Some(&**path),
-            _ => None,
-        })
-        .collect();
-    if edit.files.len() > 1 {
-        project.record_before_refactoring(&paths, "Apply changes");
-    }
-}
-
 pub async fn prepare_workspace_edit(host: &Host, window: &str, mut edit: WorkspaceEdit) -> IdeResult<WorkspaceEdit> {
    let project = host.project(window)?;
    blocking(move || {
@@ -2170,24 +2121,6 @@ mod tests {
        assert_eq!(paths(definition_targets(Ok(vec![helper, guess]), Vec::new(), false)), ["/p/app/helpers.php"]);
    }

-    #[test]
-    fn declaration_names_are_told_apart_from_uses() {
-        let syntax = std::sync::Arc::new(ide_language::Syntax::new());
-        let structure = ide_syntax::StructureService::new(std::sync::Arc::new(ide_language::SyntaxCache::new(syntax)));
-        let java = ide_core::LanguageId::new("java");
-        let text = "interface ShareMapper {\n    int batchCancel(List<Long> ids);\n}\nclass S { int f(ShareMapper m) { return m.batchCancel(null); } }\n";
-        let snap = ide_syntax::Snapshot::text(&java, text);
-        let cancel = ide_core::CancellationToken::new();
-        let at = |line, col| {
-            let pos = Pos::new(line, col);
-            is_declaration_name(&structure.node_at(&snap, Range::new(pos, pos), &cancel).unwrap().unwrap())
-        };
-        assert!(at(1, 10), "the mapper method's name");
-        assert!(at(0, 12), "the interface's name");
-        assert!(!at(3, 45), "a call of the method");
-        assert!(!at(1, 4), "its return type");
-    }
-
    #[test]
    fn positions_inside_string_literals_are_told_apart() {
        let syntax = std::sync::Arc::new(ide_language::Syntax::new());
@@ -31,7 +31,6 @@ pub mod scaffold;
 pub mod sdk;
 pub mod search;
 pub mod spell;
-mod ssh;
 pub mod syntax;
 pub mod term;
 pub mod tools;
@@ -96,7 +95,6 @@ pub fn register_all(d: &mut crate::rpc::Dispatcher) {
    deploy::register(d);
    docker::register(d);
    db::register(d);
-    ssh::register(d);
 }

 impl Host {
@@ -61,16 +61,13 @@ pub async fn sdk_python_project_interpreters(host: &Host, window: &str) -> IdeRe
    host.require_trust(window)?;
    let current = host.project(window).ok().map(|p| p.root.clone());
    let config = host.config_dir.clone();
-    // Probing runs the project's interpreter (and its settings may name any program): only
-    // projects trusted in their own right, not ones last opened in Restricted Mode.
-    let roots: Vec<PathBuf> = ide_workspace::RecentProjects::load(&config)
-        .list()
-        .into_iter()
-        .map(|p| p.path.into_path_buf())
-        .filter(|root| current.as_deref() != Some(root.as_path()))
-        .filter(|root| host.trust.window_trusted(root).unwrap_or(false))
-        .collect();
    tokio::task::spawn_blocking(move || {
+        let roots: Vec<PathBuf> = ide_workspace::RecentProjects::load(&config)
+            .list()
+            .into_iter()
+            .map(|p| p.path.into_path_buf())
+            .filter(|root| current.as_deref() != Some(root.as_path()))
+            .collect();
        // Each project resolves its configured interpreter, else its own virtualenv. The
        // probes run `python`, so keep them off the async runtime and bound how many run at
        // once: the recent list can hold ~30 projects, and each probe starts a process.
@@ -524,10 +521,6 @@ mod tests {
        host.trust.decide(&root, true, false).unwrap();
        host.open_project("main", &root).unwrap();

-        // A project last opened in Restricted Mode: its interpreter is never run.
-        host.trust.decide(&other, false, false).unwrap();
-        assert!(sdk_python_project_interpreters(&host, "main").await.unwrap().is_empty());
-        host.trust.decide(&other, true, false).unwrap();
        let list = sdk_python_project_interpreters(&host, "main").await.unwrap();
        assert_eq!(list.len(), 1, "{list:?}");
        assert_eq!(&*list[0].project, other.as_path());
@@ -47,17 +47,14 @@ pub async fn spell_check(
    let syntax = host.syntax();
    let cancel = host.begin_request(request);
    let result = blocking(move || {
-        let path = project.documents.snapshot(doc)?.path.0.clone();
        let snap = project.documents.text_snapshot(doc)?;
        if snap.large {
-            return Ok((path, Vec::new()));
+            return Ok(Vec::new());
        }
        let regions = if PROSE.contains(&snap.language.as_str()) {
            ide_spell::prose_regions(&snap.text)
        } else {
-            let Some(found) = syntax.spelling_regions(&snap.language, &snap.text) else {
-                return Ok((path, Vec::new()));
-            };
+            let Some(found) = syntax.spelling_regions(&snap.language, &snap.text) else { return Ok(Vec::new()) };
            found
                .into_iter()
                .map(|r| Region {
@@ -75,32 +72,11 @@ pub async fn spell_check(
        if cancel.is_cancelled() {
            return Err(IdeError::cancelled());
        }
-        let typos =
-            speller(&project).check(&snap.text, &regions, &|| cancel.is_cancelled()).ok_or_else(IdeError::cancelled)?;
-        Ok((path, typos))
+        speller(&project).check(&snap.text, &regions, &|| cancel.is_cancelled()).ok_or_else(IdeError::cancelled)
    })
    .await;
    host.end_request(request);
-    // Record the typos in the host's diagnostics snapshot so line-end annotations
-    // see them without waiting for a UI report; the editor still draws from its
-    // own call above, unchanged.
-    if let Ok((path, typos)) = &result {
-        let items: Vec<ide_core::Diagnostic> = typos
-            .iter()
-            .map(|t| ide_core::Diagnostic {
-                range: t.range,
-                severity: ide_core::Severity::Info,
-                message: format!("Typo: In word '{}'", t.word),
-                source: Some("Spelling".into()),
-                code: None,
-                unnecessary: false,
-                deprecated: false,
-                server: None,
-            })
-            .collect();
-        host.diagnostics.replace(path, "Spelling", items);
-    }
-    result.map(|(_, typos)| typos)
+    result
 }

 /// Replacements for a misspelt `word`, best first (Typo › Change to…).
@@ -1,29 +0,0 @@
-//! SSH configuration commands shared by the desktop shell's IPC commands and the remote
-//! server ([`crate::rpc`]). A remote window connects from the server (deployment, database
-//! tunnels, run targets, SSH sessions), so the host keys it trusts and the passwords it is
-//! given belong to the server's [`ide_ssh::SshManager`], not the desktop's.
-use crate::rpc::Dispatcher;
-use ide_core::remote_settings::SshConfiguration;
-
-pub(crate) fn register(d: &mut Dispatcher) {
-    d.add("ssh_test", |c| async move {
-        let (config, secret) = (c.arg::<SshConfiguration>("config")?, c.arg::<Option<String>>("secret")?);
-        c.host.ssh.test(&config, secret).await
-    });
-    d.add("ssh_set_secret", |c| async move {
-        let (id, secret, save) = (c.arg::<String>("id")?, c.arg::<Option<String>>("secret")?, c.arg::<bool>("save")?);
-        c.host.ssh.set_secret(&id, secret, save);
-        Ok(())
-    });
-    d.add("ssh_password_saved", |c| async move { Ok(c.host.ssh.password_saved(&c.arg::<String>("key")?)) });
-    d.add("ssh_needs_secret", |c| async move {
-        let ssh = &c.host.ssh;
-        Ok(ssh.needs_secret(&ssh.config(&c.arg::<String>("id")?)?))
-    });
-    d.add("ssh_trust_host", |c| async move { c.host.ssh.trust_host(&c.arg::<String>("id")?).await });
-    d.add("ssh_connected", |c| async move { Ok(c.host.ssh.connected()) });
-    d.add("ssh_disconnect", |c| async move {
-        c.host.ssh.disconnect(&c.arg::<String>("id")?);
-        Ok(())
-    });
-}
@@ -6,7 +6,7 @@ use crate::rpc::Dispatcher;
 use ide_core::{IdeError, IdeResult, RequestId};
 use ide_sdk::Sdk;
 use ide_tools::jdk::{JdkReleases, JdkVendor};
-use ide_tools::{InstallEvent, ToolInfo, ToolUpdate, Tools};
+use ide_tools::{InstallEvent, ToolInfo, Tools};
 use std::path::PathBuf;

 /// The installer, reporting the executables chosen in the window's settings.
@@ -89,16 +89,6 @@ pub async fn tools_install(
    Ok(info)
 }

-/// Newer versions of the tools the IDE installed (release downloads and npm packages).
-/// Cancel with `cancel_request(request)`.
-pub async fn tools_updates(host: &Host, window: &str, request: RequestId) -> IdeResult<Vec<ToolUpdate>> {
-    let tools = tools(host, window)?;
-    let cancel = host.begin_request(request);
-    let result = tokio::task::spawn_blocking(move || tools.updates(&cancel)).await.map_err(join_err);
-    host.end_request(request);
-    result?
-}
-
 /// Removes a tool the IDE installed.
 pub async fn tools_uninstall(host: &Host, window: &str, name: String) -> IdeResult<ToolInfo> {
    let tools = tools(host, window)?;
@@ -195,7 +185,6 @@ pub(crate) fn register(d: &mut Dispatcher) {
        tools_install(&c.host, &c.window, c.arg("name")?, c.arg("request")?, c.sender("onEvent")?).await
    });
    d.add("tools_uninstall", |c| async move { tools_uninstall(&c.host, &c.window, c.arg("name")?).await });
-    d.add("tools_updates", |c| async move { tools_updates(&c.host, &c.window, c.arg("request")?).await });
    d.add("jdk_download_vendors", |c| async move { Ok(jdk_download_vendors(&c.host, &c.window)) });
    d.add("jdk_download_releases", |c| async move {
        jdk_download_releases(&c.host, &c.window, c.arg("vendor")?, c.arg("request")?).await
@@ -22,27 +22,6 @@ pub async fn status(host: &Host, window: &str) -> IdeResult<Vec<FileStatus>> {
    .await
 }

-/// Changes of `paths` only: the dirty-scope refresh after a watcher batch. `paths` that belong
-/// to no repository are ignored, and an empty list is the full status.
-pub async fn status_paths(host: &Host, window: &str, paths: Vec<std::path::PathBuf>) -> IdeResult<Vec<FileStatus>> {
-    let project = host.project(window)?;
-    host.blocking(move || {
-        let settings = project.settings.effective();
-        if project.is_trusted() {
-            apply_git_executable(&settings);
-        }
-        let repos = project.repos();
-        if repos.is_empty() {
-            return Err(ide_core::IdeError::unavailable("project is not a git repository"));
-        }
-        for r in repos.all() {
-            r.set_ignored_names(settings.ignored_names());
-        }
-        repos.status_paths(&paths)
-    })
-    .await
-}
-
 mod commands;
 pub use commands::*;

@@ -1507,7 +1507,7 @@ pub(crate) fn register(d: &mut Dispatcher) {
        vcs_restore_branch(&c.host, &c.window, c.arg("repo")?, c.arg("deleted")?).await
    });
    d.add("vcs_rename_branch", |c| async move {
-        vcs_rename_branch(&c.host, &c.window, c.arg("repo")?, c.arg("from")?, c.arg("to")?, c.arg("unsetUpstream")?)
+        vcs_rename_branch(&c.host, &c.window, c.arg("repo")?, c.arg("from")?, c.arg("to")?, c.arg("unset_upstream")?)
            .await
    });
    d.add("vcs_merge", |c| async move { vcs_merge(&c.host, &c.window, c.arg("repo")?, c.arg("branch")?).await });
@@ -2,106 +2,10 @@

 use crate::Host;
 use ide_core::IdeResult;
-use ide_core::proxy_settings::{ProxyMode, ProxySettings};
 use std::path::Path;
-use std::time::Duration;
-
-/// Whether `url` names this machine (`localhost` or a loopback address).
-fn is_loopback(url: &reqwest::Url) -> bool {
-    let host = url.host_str().unwrap_or_default().trim_start_matches('[').trim_end_matches(']');
-    host.eq_ignore_ascii_case("localhost") || host.parse::<std::net::IpAddr>().is_ok_and(|ip| ip.is_loopback())
-}
-
-fn is_html(content_type: &str) -> bool {
-    let kind = content_type.split(';').next().unwrap_or_default().trim();
-    kind.eq_ignore_ascii_case("text/html") || kind.eq_ignore_ascii_case("application/xhtml+xml")
-}
-
-/// A client that reaches this machine only: no proxy, and a redirect is followed while it
-/// stays here (a dev server sending `/` to `/app/`).
-fn loopback_client() -> IdeResult<reqwest::Client> {
-    let direct = ProxySettings { mode: ProxyMode::None, ..ProxySettings::default() };
-    let stay = reqwest::redirect::Policy::custom(|attempt| {
-        if is_loopback(attempt.url()) && attempt.previous().len() < 5 { attempt.follow() } else { attempt.stop() }
-    });
-    ide_http::client::build_with_redirect(&direct, stay)
-}
-
-/// Whether `url`, a server on this machine, answers a browser with an HTML document: a page
-/// to open, as a dev server has, and not an API endpoint. Other hosts are never asked.
-pub async fn serves_page(url: &str) -> bool {
-    let Ok(url) = reqwest::Url::parse(url) else { return false };
-    if !matches!(url.scheme(), "http" | "https") || !is_loopback(&url) {
-        return false;
-    }
-    let Ok(client) = loopback_client() else { return false };
-    // A dev server may compile the page on this first request.
-    let request = client.get(url).header(reqwest::header::ACCEPT, "text/html").timeout(Duration::from_secs(10));
-    let Ok(response) = request.send().await else { return false };
-    let html = response
-        .headers()
-        .get(reqwest::header::CONTENT_TYPE)
-        .and_then(|value| value.to_str().ok())
-        .is_some_and(is_html);
-    response.status().is_success() && html
-}

 /// The URL serving `file`, under the window's project when it holds the file.
 pub async fn url(host: &Host, window: &str, file: &Path) -> IdeResult<String> {
    let root = host.project(window).ok().map(|p| p.root.clone());
    host.web.url_for(root.as_deref(), file).await
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use tokio::io::{AsyncReadExt, AsyncWriteExt};
-
-    /// A server on a free port that answers every request with `status` and `header`. It
-    /// listens on every interface, so that a test can reach it under a name that is not loopback.
-    async fn answering(status: &'static str, header: String) -> String {
-        let listener = tokio::net::TcpListener::bind("0.0.0.0:0").await.unwrap();
-        let port = listener.local_addr().unwrap().port();
-        tokio::spawn(async move {
-            while let Ok((mut socket, _)) = listener.accept().await {
-                let mut request = [0u8; 2048];
-                let _ = socket.read(&mut request).await;
-                let response =
-                    format!("HTTP/1.1 {status}\r\n{header}\r\nContent-Length: 2\r\nConnection: close\r\n\r\nok");
-                let _ = socket.write_all(response.as_bytes()).await;
-            }
-        });
-        format!("http://127.0.0.1:{port}/")
-    }
-
-    async fn server(status: &'static str, content_type: &'static str) -> String {
-        answering(status, format!("Content-Type: {content_type}")).await
-    }
-
-    async fn redirecting_to(location: &str) -> String {
-        answering("302 Found", format!("Location: {location}")).await
-    }
-
-    #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-    async fn a_redirect_is_followed_on_this_machine_only() {
-        let page = server("200 OK", "text/html").await;
-        assert!(serves_page(&redirecting_to(&page).await).await);
-        // The same page under an address that is not loopback: it is not asked.
-        let elsewhere = page.replace("127.0.0.1", "0.0.0.0");
-        assert!(!serves_page(&redirecting_to(&elsewhere).await).await);
-    }
-
-    #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-    async fn a_page_is_an_html_answer_from_this_machine() {
-        assert!(serves_page(&server("200 OK", "text/html; charset=utf-8").await).await);
-        assert!(serves_page(&server("200 OK", "Text/HTML").await.replace("127.0.0.1", "localhost")).await);
-        // An API, an error page and a port nothing listens on are not pages.
-        assert!(!serves_page(&server("200 OK", "application/json").await).await);
-        assert!(!serves_page(&server("404 Not Found", "text/html").await).await);
-        assert!(!serves_page("http://127.0.0.1:1/").await);
-        // Other machines are not asked at all.
-        assert!(!serves_page("http://example.com/").await);
-        assert!(!serves_page("ftp://localhost/").await);
-        assert!(!serves_page("not a url").await);
-    }
-}
@@ -1642,9 +1642,6 @@ impl HostApi for PluginApi {
    ) -> Result<(), HostError> {
        self.set_decorations(path, set, Vec::new(), item, true)
    }
-    fn file_icon_decorations(&self, set: &str, items: Vec<(PathBuf, String)>) -> Result<(), HostError> {
-        self.set_file_icon_decorations(set, items)
-    }
    fn vcs_log(
        &self,
        root: &Path,
@@ -3179,17 +3176,26 @@ impl PluginWorkspace for HostWorkspace {
        Ok(out)
    }
    fn problems(&self, client: &str, path: Option<&Path>) -> Result<Vec<ide_plugin::FileProblems>, HostError> {
-        // The host records every `Diagnostics` event it emits (language servers,
-        // builds, spelling, plugin providers), so this sees a file's problems
-        // whatever window opened it — not just the ones its UI reported.
        let host = self.0.upgrade().ok_or(HostError::Cancelled)?;
-        host.project(client).map_err(failed)?;
+        let root = host.project(client).map_err(failed)?.root.clone();
+        let windows = host.windows_for_root(&root);
        let mut out = Vec::new();
-        for (file, source, diagnostics) in host.diagnostics.problems() {
-            if path.is_some_and(|p| p != file) {
+        for file in host.mcp_reports.problems(&windows) {
+            if path.is_some_and(|p| p != file.path.0) {
                continue;
            }
-            out.push(ide_plugin::FileProblems { path: to_ipc(&file), source, diagnostics });
+            if ide_plugin::resolve_new_in_root(&root, &to_ipc(&file.path.0)).is_err() {
+                continue;
+            }
+            let mut sources: BTreeMap<String, Vec<ide_core::Diagnostic>> = BTreeMap::new();
+            for d in file.items {
+                sources.entry(d.server.clone().or_else(|| d.source.clone()).unwrap_or_default()).or_default().push(d);
+            }
+            out.extend(sources.into_iter().map(|(source, diagnostics)| ide_plugin::FileProblems {
+                path: to_ipc(&file.path.0),
+                source,
+                diagnostics,
+            }));
        }
        Ok(out)
    }
@@ -3315,8 +3321,6 @@ impl PluginWorkspace for HostWorkspace {
        path: &Path,
        items: Vec<ide_core::Diagnostic>,
    ) -> Result<(), HostError> {
-        // Any open project may publish problems for any file: annotations follow the
-        // file, not the window (an editor can show a file outside every project root).
        let projects = HostWorkspace::projects(self);
        let project = projects
            .iter()
@@ -3328,8 +3332,7 @@ impl PluginWorkspace for HostWorkspace {
                    .iter()
                    .find(|p| crate::project::workspace_member_roots(&p.root).iter().any(|m| path.starts_with(m)))
            })
-            .or_else(|| projects.first())
-            .ok_or_else(|| HostError::NotFound("no project is open".into()))?;
+            .ok_or_else(|| HostError::Invalid(format!("{} is not in an open project", path.display())))?;
        project.sink.emit(ide_core::IdeEvent::Diagnostics {
            path: path.to_path_buf().into(),
            source: format!("plugin:{source}"),
@@ -4127,25 +4130,25 @@ impl PluginApi {
        {
            return Err(HostError::Invalid("a file note is one non-empty line of at most 200 characters".into()));
        }
-        if let Some(icon) = file.as_ref().and_then(|f| f.icon.as_ref()) {
-            ide_extension::validate_item_id(icon, "file icon id").map_err(HostError::Invalid)?;
-        }
        items.retain(|d| decoration_style(&d.style));
        if items.iter().any(|d| d.range.start > d.range.end) {
            return Err(HostError::Invalid("reversed decoration range".into()));
        }
        let replacement = if let Some(path) = path {
-            // The decoration follows the file, not the window's project: editors render
-            // whatever they have open, including files outside every project root. The
-            // set's root stays the path's own (deepest open) project for tree filtering.
-            let root = self.decoration_root(path);
+            let workspace = self.shared.workspace().ok_or_else(|| HostError::NotFound("no project open".into()))?;
+            let (root, real) = workspace
+                .projects()
+                .into_iter()
+                .filter_map(|root| ide_plugin::resolve_new_in_root(&root, &to_ipc(path)).ok().map(|real| (root, real)))
+                .max_by_key(|(root, _)| root.components().count())
+                .ok_or_else(|| HostError::Invalid("path outside open projects".into()))?;
            Some(super::DecorationSet {
                root: root.into(),
-                path: ide_core::IpcPath(path.to_path_buf()),
+                path: real.into(),
                set_id: set.into(),
                tree,
                items,
-                file: file.filter(|f| f.note.is_some() || f.icon.is_some() || decoration_style(&f.style)),
+                file: file.filter(|f| f.note.is_some() || decoration_style(&f.style)),
            })
        } else {
            None
@@ -4173,60 +4176,6 @@ impl PluginApi {
        self.shared.sink.emit(None, PluginEvent::DecorationsChanged { plugin_id: self.id().into(), sets });
        Ok(())
    }
-
-    fn decoration_root(&self, path: &Path) -> PathBuf {
-        self.shared
-            .workspace()
-            .map(|w| {
-                w.projects()
-                    .into_iter()
-                    .filter(|root| path.starts_with(root))
-                    .max_by_key(|root| root.components().count())
-            })
-            .unwrap_or_default()
-            .unwrap_or_else(|| path.parent().map(Path::to_path_buf).unwrap_or_else(|| path.to_path_buf()))
-    }
-
-    fn set_file_icon_decorations(&self, set: &str, items: Vec<(PathBuf, String)>) -> Result<(), HostError> {
-        if set.is_empty() || set.len() > 128 {
-            return Err(HostError::Invalid("set id must be 1-128 bytes".into()));
-        }
-        if items.len() > 10_000 {
-            return Err(HostError::Invalid("at most 10000 file icons per set".into()));
-        }
-        let mut by_path = BTreeMap::new();
-        for (path, icon) in items {
-            ide_extension::validate_item_id(&icon, "file icon id").map_err(HostError::Invalid)?;
-            by_path.insert(path, icon);
-        }
-        let mut all = self.shared.decorations.lock();
-        let mut sets = all.get(self.id()).cloned().unwrap_or_default();
-        sets.retain(|s| !(s.tree && s.set_id == set));
-        for (path, icon) in by_path {
-            let root = self.decoration_root(&path);
-            sets.push(super::DecorationSet {
-                root: root.into(),
-                path: ide_core::IpcPath(path),
-                set_id: set.into(),
-                tree: true,
-                items: Vec::new(),
-                file: Some(ide_plugin::FileDecoration {
-                    badge: None,
-                    style: String::new(),
-                    tooltip: None,
-                    note: None,
-                    icon: Some(icon),
-                }),
-            });
-        }
-        let names: BTreeSet<_> = sets.iter().filter(|s| s.tree).map(|s| &s.set_id).collect();
-        if names.len() > 50 || serde_json::to_vec(&sets).map_err(failed)?.len() > 4 << 20 {
-            return Err(HostError::Invalid("decoration sets exceed plugin limits".into()));
-        }
-        all.insert(self.id().into(), sets.clone());
-        self.shared.sink.emit(None, PluginEvent::DecorationsChanged { plugin_id: self.id().into(), sets });
-        Ok(())
-    }
 }
 fn decoration_style(style: &str) -> bool {
    matches!(
@@ -4239,8 +4188,6 @@ fn decoration_style(style: &str) -> bool {
            | "warning"
            | "error"
            | "info"
-            | "typo"
-            | "weak"
            | "underline"
            | "strikethrough"
            | "muted"
@@ -4361,11 +4308,8 @@ mod workbench_tests {
        };
        api.decorations(Some(&path), "set", vec![item("highlight"), item("unknown")]).unwrap();
        assert_eq!(api.shared.decoration_sets()["test"][0].items.len(), 1);
-        // Decorations follow the file: a path outside the open project is accepted too.
-        api.decorations(Some(&root.join("../outside.txt")), "set", vec![]).unwrap();
-        assert_eq!(api.shared.decoration_sets()["test"].len(), 2);
+        assert!(api.decorations(Some(&root.join("../outside.txt")), "set", vec![]).is_err());
        api.decorations(None, "set", vec![]).unwrap();
-        assert!(api.shared.decoration_sets()["test"].is_empty());
        for i in 0..50 {
            api.decorations(Some(&path), &format!("s{i}"), vec![]).unwrap();
        }
@@ -4380,8 +4324,7 @@ mod workbench_tests {
                    badge: Some("abc".into()),
                    style: "info".into(),
                    tooltip: None,
-                    note: None,
-                    icon: None,
+                    note: None
                })
            )
            .is_err()
@@ -4391,7 +4334,6 @@ mod workbench_tests {
            style: String::new(),
            tooltip: Some("why".into()),
            note: Some(text.into()),
-            icon: None,
        };
        api.file_decorations(Some(&path), "notes", Some(note("entry point"))).unwrap();
        let notes = |api: &PluginApi| {
@@ -4405,44 +4347,9 @@ mod workbench_tests {
        for bad in ["", "two\nlines", &"x".repeat(201)] {
            assert!(api.file_decorations(Some(&path), "notes", Some(note(bad))).is_err(), "{bad:?}");
        }
-        api.file_icon_decorations(
-            "icons",
-            vec![(path.clone(), "helm-chart".into()), (root.join("chart"), "helm-dir".into())],
-        )
-        .unwrap();
-        let icons = api.shared.decoration_sets()["test"]
-            .iter()
-            .filter(|s| s.tree && s.set_id == "icons")
-            .filter_map(|s| s.file.as_ref().and_then(|f| f.icon.clone()))
-            .collect::<Vec<_>>();
-        assert_eq!(icons.len(), 2);
-        assert!(api.file_icon_decorations("icons", vec![(path.clone(), "BAD ID".into())]).is_err());
        api.shared.clear_plugin("test", true);
        assert!(api.shared.decoration_sets().is_empty());
    }
-    #[test]
-    fn decoration_styles_keep_the_severity_palette_the_editor_renders() {
-        // Inspection Lens colours typos and weak warnings with their own styles; the
-        // host must keep them, not silently drop them the way an unknown style is dropped.
-        for style in [
-            "highlight",
-            "search",
-            "added",
-            "modified",
-            "removed",
-            "warning",
-            "error",
-            "info",
-            "typo",
-            "weak",
-            "underline",
-            "strikethrough",
-            "muted",
-        ] {
-            assert!(decoration_style(style), "{style} should be a known style");
-        }
-        assert!(!decoration_style("unknown"));
-    }
    fn git(root: &Path, args: &[&str]) {
        let out = StdCommand::new("git").current_dir(root).args(args).output().unwrap();
        assert!(out.status.success(), "{}", String::from_utf8_lossy(&out.stderr));
@@ -129,7 +129,6 @@ impl PluginHost {
                }
                let path = match event {
                    WorkbenchEvent::FileOpened(path) | WorkbenchEvent::FileSaved(path) => Path::new(path),
-                    WorkbenchEvent::EditorFocused(Some(path)) => Path::new(path),
                    WorkbenchEvent::DocumentChanged(change) => Path::new(&change.path),
                    _ => return Some(event.clone()),
                };
@@ -137,25 +136,16 @@ impl PluginHost {
                    return None;
                }
                let workspace = workspace.as_ref()?;
-                let real = ide_plugin::resolve_real(path);
-                // The file's own project, not the invoking window's: annotations follow
-                // the file, so a plugin hears about a file another window has open.
                let root = match client {
-                    Some(client) => workspace
-                        .project_of(client)
-                        .filter(|r| real.starts_with(ide_plugin::resolve_real(r)))
-                        .or_else(|| {
-                            workspace
-                                .projects()
-                                .into_iter()
-                                .filter(|r| real.starts_with(ide_plugin::resolve_real(r)))
-                                .max_by_key(|r| r.components().count())
-                        }),
-                    None => workspace
-                        .projects()
-                        .into_iter()
-                        .filter(|r| real.starts_with(ide_plugin::resolve_real(r)))
-                        .max_by_key(|r| r.components().count()),
+                    Some(client) => workspace.project_of(client),
+                    None => {
+                        let real = ide_plugin::resolve_real(path);
+                        workspace
+                            .projects()
+                            .into_iter()
+                            .filter(|r| real.starts_with(ide_plugin::resolve_real(r)))
+                            .max_by_key(|r| r.components().count())
+                    }
                }?;
                if plugin.dev_root.as_deref().is_some_and(|r| r != root) {
                    return None;
@@ -396,37 +396,15 @@ impl PluginHost {
        }
    }

-    pub(super) fn has_document_providers(&self, kind: ProviderKind, doc: &ProviderDocument) -> bool {
-        self.provider_plugins(kind, &doc.language)
-            .into_iter()
-            .any(|p| p.dev_root.as_ref().is_none_or(|r| doc.path.starts_with(r)))
-    }
-
    pub fn provide_completion(
        &self,
        doc: &ProviderDocument,
        at: ide_core::Pos,
        trigger: Option<&str>,
    ) -> Vec<(String, CompletionItem)> {
-        self.provide_completion_for_editor(doc, at, trigger).1
-    }
-
-    pub(crate) fn provide_completion_for_editor(
-        &self,
-        doc: &ProviderDocument,
-        at: ide_core::Pos,
-        trigger: Option<&str>,
-    ) -> (bool, Vec<(String, CompletionItem)>) {
-        // An injection-capable outer document (e.g. SQL embedded in text) may complete at other
-        // positions even when `at` is outside an injection, so avoid marking document-wide backoff.
-        let mut covered = self.has_document_providers(ProviderKind::Injections, doc);
-        let items = self
-            .feature_documents(doc, Some(at))
+        self.feature_documents(doc, Some(at))
            .into_iter()
            .flat_map(|(doc, bounds)| {
-                if self.has_document_providers(ProviderKind::Completion, &doc) {
-                    covered = true;
-                }
                let (d, t) = (Arc::new(doc.clone()), trigger.map(str::to_owned));
                self.document_calls(ProviderKind::Completion, &doc, move |rt, timeout| {
                    rt.provide_completion(&d, at, t.as_deref(), timeout)
@@ -441,8 +419,7 @@ impl PluginHost {
                    Some((p, i))
                })
            })
-            .collect();
-        (covered, items)
+            .collect()
    }

    pub fn provide_code_actions(
@@ -352,15 +352,6 @@ where
    deserializer.deserialize_map(Properties)
 }

-/// A sample shown in a setting's own style (the Colour Scheme colours), e.g. the
-/// message an Inspection Lens severity produces.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
-pub struct SettingExample {
-    pub text: String,
-    /// `error`, `warning`, `weak`, `typo`, `info` or `muted`: which sample style to draw.
-    pub style: String,
-}
-
 /// One setting of a plugin.
 #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
 #[serde(rename_all = "camelCase")]
@@ -380,8 +371,6 @@ pub struct SettingSchema {
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub group: Option<String>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub example: Option<SettingExample>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub items: Option<Box<SettingSchema>>,
    #[serde(default, skip_serializing_if = "Vec::is_empty")]
    pub properties: Vec<SettingSchema>,
@@ -466,20 +455,6 @@ fn setting_at(key: &str, raw: &serde_json::value::RawValue, depth: u8) -> Result
            Some(_) => Err(format!("setting {key:?}: `{name}` is a string up to {max} bytes")),
        }
    };
-    let example = match o.get("example") {
-        None => None,
-        Some(v) => {
-            let e: SettingExample = serde_json::from_value(v.clone())
-                .map_err(|e| format!("setting {key:?}: `example` is {{\"text\", \"style\"}}: {e}"))?;
-            if e.text.is_empty() || e.text.len() > 300 {
-                return Err(format!("setting {key:?}: `example.text` is 1–300 bytes"));
-            }
-            if e.style.len() > 32 || !e.style.chars().all(|c| c.is_ascii_lowercase()) {
-                return Err(format!("setting {key:?}: `example.style` is a lowercase style name"));
-            }
-            Some(e)
-        }
-    };
    let s = SettingSchema {
        key: key.to_owned(),
        kind: kind.to_owned(),
@@ -489,7 +464,6 @@ fn setting_at(key: &str, raw: &serde_json::value::RawValue, depth: u8) -> Result
        options,
        multiline: o.get("multiline").and_then(Value::as_bool).unwrap_or(false),
        group: text("group", MAX_TITLE)?,
-        example,
        items,
        properties,
    };
@@ -743,7 +717,6 @@ pub(super) fn custom_editor(pkg: &Package, decl: toml::Value) -> Result<UiDecl,
 #[serde(rename_all = "camelCase", deny_unknown_fields)]
 struct FileIconDecl {
    id: String,
-    #[serde(default)]
    patterns: Vec<String>,
    icon: PathBuf,
    #[serde(default)]
@@ -755,19 +728,13 @@ pub fn file_icon_asset(id: &str, dark: bool) -> String {
    format!("fileIcon/{id}/{}", if dark { "dark" } else { "light" })
 }

-/// `[[contributes.fileIcons]]`: an icon for the files matching `patterns` (or
-/// assigned dynamically through `decorations.set-file-icon` when `patterns` is
-/// omitted in API 1.8), whatever icon theme is in use (the user's own file type
-/// icons still win).
+/// `[[contributes.fileIcons]]`: an icon for the files matching `patterns`,
+/// whatever icon theme is in use (the user's own file type icons still win).
 pub(super) fn file_icon(pkg: &Package, decl: toml::Value) -> Result<UiDecl, String> {
    let d: FileIconDecl = decode(FILE_ICONS, decl)?;
    validate_item_id(&d.id, "file icon id")?;
    let what = format!("file icon {:?}", d.id);
-    if d.patterns.is_empty() {
-        pkg.manifest.needs_api("contributes.fileIcons without patterns", 8)?;
-    } else {
-        file_patterns(&d.patterns, &what)?;
-    }
+    file_patterns(&d.patterns, &what)?;
    let mut files = Vec::new();
    let mut assets = Vec::new();
    for (path, dark) in [(Some(&d.icon), false), (d.icon_dark.as_ref(), true)] {
@@ -776,16 +743,8 @@ pub(super) fn file_icon(pkg: &Package, decl: toml::Value) -> Result<UiDecl, Stri
        assets.push((file_icon_asset(&d.id, dark), svg));
        files.push(path.clone());
    }
-    let bytes = serde_json::to_vec(&assets).map_err(|e| e.to_string())?;
-    let revision = blake3::hash(&bytes).to_hex().to_string();
-    let json = serde_json::json!({
-        "id": d.id,
-        "patterns": d.patterns,
-        "dark": d.icon_dark.is_some(),
-        "revision": revision,
-    });
-    let label = if d.patterns.is_empty() { d.id.clone() } else { d.patterns.join(", ") };
-    let mut out = UiDecl::new(d.id.clone(), label, json);
+    let json = serde_json::json!({ "id": d.id, "patterns": d.patterns, "dark": d.icon_dark.is_some() });
+    let mut out = UiDecl::new(d.id.clone(), d.patterns.join(", "), json);
    out.files = files;
    out.assets = assets;
    Ok(out)
@@ -447,11 +447,6 @@ impl Host {
                            .collect();
                        matches!(rest.as_slice(), [first, ..] if first == "worktrees" && rest.len() <= 2)
                    });
-                    // A repository folder moved or restored into the project: no `.git` event is
-                    // written inside it before the watcher sees the new directory, its creation is
-                    // the signal. A `git clone` / `git init` inside the project already arrives
-                    // through the `.git` paths above; this covers the whole tree being brought in.
-                    git_dirs |= batch.created.iter().any(|p| p.join(".git").exists());
                    if git_dirs {
                        scan_repositories(&root, &repos, &settings, &sink, &build_cache);
                    }
@@ -680,10 +675,9 @@ impl Host {
            agents.set_new_task_approvals_hook(Arc::new(move || settings.effective().agents.new_task_approvals));
        }
        let approvals = self.mcp_approvals.clone();
-        let secrets = self.agent_secrets.clone();
        let root = root.to_path_buf();
        agents.set_mcp_servers_hook(Box::new(move || {
-            crate::ops::agent::session_mcp_servers(&settings, &approvals, &secrets, &root)
+            crate::ops::agent::session_mcp_servers(&settings, &approvals, &root)
        }));
        (db, http_history, agents)
    }
@@ -869,20 +863,6 @@ fn scan_repositories(
    sink: &SharedSink,
    build_cache: &Path,
 ) {
-    match discover_repositories(root, settings, build_cache) {
-        Ok(found) => {
-            if found.roots() != repos.read().roots() {
-                *repos.write() = found;
-                sink.emit(IdeEvent::VcsChanged { root: root.to_path_buf().into() });
-            }
-        }
-        Err(e) => tracing::warn!("looking for git repositories: {e}"),
-    }
-}
-
-/// The repository containing `root` and those nested below it or below a content root.
-/// The project-open scan and the watcher's rescan share these skip rules.
-fn discover_repositories(root: &Path, settings: &SettingsStore, build_cache: &Path) -> IdeResult<Repos> {
    let ignored = settings.effective().ignored_names();
    let skip = |p: &Path| {
        p.file_name().is_some_and(|n| {
@@ -894,7 +874,15 @@ fn discover_repositories(root: &Path, settings: &SettingsStore, build_cache: &Pa
    };
    let mut roots = vec![root.to_path_buf()];
    roots.extend(content_roots(&settings.effective(), root, build_cache));
-    Repos::discover_roots(&roots, &skip)
+    match Repos::discover_roots(&roots, &skip) {
+        Ok(found) => {
+            if found.roots() != repos.read().roots() {
+                *repos.write() = found;
+                sink.emit(IdeEvent::VcsChanged { root: root.to_path_buf().into() });
+            }
+        }
+        Err(e) => tracing::warn!("looking for git repositories: {e}"),
+    }
 }

 impl Project {
@@ -270,8 +270,7 @@ impl Dispatcher {
        .add("run_resize", |c| async move { ops::run::resize(&c.host, c.arg("id")?, c.arg("cols")?, c.arg("rows")?) })
        .add("run_close_stdin", |c| async move { ops::run::close_stdin(&c.host, c.arg("id")?) })
        .add("run_list", |c| async move { Ok(ops::run::list(&c.host)) })
-        .add("vcs_status", |c| async move { ops::vcs::status(&c.host, &c.window).await })
-        .add("vcs_status_paths", |c| async move { ops::vcs::status_paths(&c.host, &c.window, c.arg("paths")?).await });
+        .add("vcs_status", |c| async move { ops::vcs::status(&c.host, &c.window).await });
        ops::register_all(&mut d);
        d
    }
@@ -475,7 +475,6 @@ pub fn restricted_command_allowed(cmd: &str) -> bool {
            | "vcs_clone"
            | "vcs_init"
            | "vcs_status"
-            | "vcs_status_paths"
            | "vcs_roots"
            | "vcs_branch_info"
            | "vcs_line_hunks"
@@ -231,11 +231,7 @@ async fn mutations_preserve_unsaved_text_and_reject_metadata_and_escapes() {
        .iter()
        .rev()
        .find_map(|event| match event {
-            // Undoable like a refactoring, but marked as the agent's, so it isn't announced as one.
-            IdeEvent::WorkspaceEditApplied { id, by_agent, .. } => {
-                assert!(*by_agent, "an MCP edit is the agent's");
-                Some(*id)
-            }
+            IdeEvent::WorkspaceEditApplied { id, .. } => Some(*id),
            _ => None,
        })
        .unwrap();
@@ -1,133 +0,0 @@
-//! Values of the user's MCP servers' environment variables and HTTP headers live in the
-//! credential store; `settings.toml` keeps only their names. A project's own servers keep
-//! their values in the project's file, where the project shares them.
-
-use ide_agent::{McpKeyValue, McpScope, McpServer, McpServerInput};
-use ide_core::NullSink;
-use ide_core::settings::McpTransport;
-use ide_host::{Host, HostConfig};
-use ide_ssh::secrets::testing::{files_containing, use_memory_store};
-use std::path::{Path, PathBuf};
-use std::sync::Arc;
-
-const VALUE: &str = "mcp-value-0f3c9a";
-
-fn host(dir: &Path) -> Arc<Host> {
-    Arc::new(Host::new(HostConfig {
-        config_dir: dir.join("config"),
-        data_dir: dir.join("data"),
-        local_data_dir: dir.join("data"),
-        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
-        syntax: Arc::default(),
-        sink_for: Box::new(|_| Arc::new(NullSink)),
-        owner: |w| w,
-        runtime: tokio::runtime::Handle::current(),
-        project_environment: false,
-    }))
-}
-
-fn project(tmp: &tempfile::TempDir) -> PathBuf {
-    let root = dunce::canonicalize(tmp.path()).unwrap().join("project");
-    std::fs::create_dir_all(root.join(".openidea")).unwrap();
-    root
-}
-
-fn open(host: &Host, root: &Path) {
-    host.trust.decide(root, true, false).unwrap();
-    host.open_project("main", root).unwrap();
-}
-
-fn header(servers: &[McpServer], id: &str) -> String {
-    let server = servers.iter().find(|s| s.id == id).unwrap_or_else(|| panic!("{id} in {servers:?}"));
-    server.headers.iter().find(|h| h.name == "Authorization").map(|h| h.value.clone()).unwrap_or_default()
-}
-
-fn input(name: &str, scope: McpScope) -> McpServerInput {
-    McpServerInput {
-        id: None,
-        name: name.into(),
-        scope,
-        transport: McpTransport::Http,
-        enabled: true,
-        command: None,
-        args: vec![],
-        env: vec![],
-        url: Some("https://mcp.example/v1".into()),
-        headers: vec![McpKeyValue { name: "Authorization".into(), value: format!("Bearer {VALUE}") }],
-        agents: vec![],
-    }
-}
-
-const SERVER_WITH_VALUE: &str = r#"
-[agents.mcpServers.remote]
-transport = "http"
-enabled = true
-url = "https://mcp.example/v1"
-headers = { Authorization = "Bearer mcp-value-0f3c9a" }
-"#;
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn user_server_values_stay_out_of_the_user_settings() {
-    use_memory_store();
-    let tmp = tempfile::tempdir().unwrap();
-    let root = project(&tmp);
-    let host = host(tmp.path());
-    open(&host, &root);
-    for (name, scope) in [("user-server", McpScope::User), ("repo-server", McpScope::Workspace)] {
-        ide_host::ops::agent::mcp_save(&host, "main", input(name, scope)).unwrap();
-    }
-    host.close_project("main");
-
-    // Only the project's own file holds a value; nothing in the user's config or data does.
-    let found = files_containing(tmp.path(), VALUE);
-    assert!(found.len() == 1 && found[0].ends_with(Path::new(".openidea/settings.toml")), "{found:?}");
-
-    let host = self::host(tmp.path());
-    open(&host, &root);
-    let servers = ide_host::ops::agent::mcp_list(&host, "main").unwrap();
-    assert_eq!(header(&servers, "user::user-server"), format!("Bearer {VALUE}"));
-    assert_eq!(header(&servers, "workspace::repo-server"), format!("Bearer {VALUE}"));
-    host.close_project("main");
-}
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn values_in_user_settings_move_to_the_credential_store() {
-    use_memory_store();
-    let tmp = tempfile::tempdir().unwrap();
-    let root = project(&tmp);
-    std::fs::create_dir_all(tmp.path().join("config")).unwrap();
-    let saved = SERVER_WITH_VALUE.replace("Authorization =", "X-Saved = \"\", Authorization =");
-    std::fs::write(tmp.path().join("config/settings.toml"), saved).unwrap();
-    ide_host::agent_secrets::AgentSecrets::new(&tmp.path().join("data"))
-        .set("mcp/user/remote/header/X-Saved", "saved-earlier")
-        .unwrap();
-    let host = host(tmp.path());
-    assert_eq!(files_containing(tmp.path(), VALUE), Vec::<PathBuf>::new());
-    open(&host, &root);
-    let servers = ide_host::ops::agent::mcp_list(&host, "main").unwrap();
-    assert_eq!(header(&servers, "user::remote"), format!("Bearer {VALUE}"));
-    let remote = servers.iter().find(|s| s.id == "user::remote").unwrap();
-    assert!(remote.headers.iter().any(|h| h.name == "X-Saved" && h.value == "saved-earlier"), "{remote:?}");
-    host.close_project("main");
-}
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn a_projects_own_values_stay_in_its_file() {
-    use_memory_store();
-    let tmp = tempfile::tempdir().unwrap();
-    let root = project(&tmp);
-    let file = root.join(".openidea/settings.toml");
-    std::fs::write(&file, SERVER_WITH_VALUE).unwrap();
-    let host = host(tmp.path());
-    open(&host, &root);
-    let servers = ide_host::ops::agent::mcp_list(&host, "main").unwrap();
-    assert_eq!(header(&servers, "workspace::remote"), format!("Bearer {VALUE}"));
-    assert_eq!(std::fs::read_to_string(&file).unwrap(), SERVER_WITH_VALUE, "reading leaves the project file alone");
-
-    // Saving the servers keeps the project's values in the project's file for everyone else.
-    let servers = ide_host::ops::agent::mcp_set_enabled(&host, "main", "workspace::remote".into(), false).unwrap();
-    assert_eq!(header(&servers, "workspace::remote"), format!("Bearer {VALUE}"));
-    assert!(std::fs::read_to_string(&file).unwrap().contains(VALUE));
-    assert_eq!(files_containing(&tmp.path().join("data"), VALUE), Vec::<PathBuf>::new());
-    host.close_project("main");
-}
@@ -430,61 +430,3 @@ async fn typing_is_debounced_versioned_and_scoped_to_document_project_and_window
    host.shutdown().await;
    set_editor_providers(None);
 }
-
-/// A host with a project open: `problems` and `decorations` need a workspace.
-fn harness(root: &Path) -> Arc<Host> {
-    let host = Arc::new(Host::new(HostConfig {
-        config_dir: root.join("config"),
-        data_dir: root.join("data"),
-        local_data_dir: root.join("local"),
-        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
-        syntax: Arc::default(),
-        sink_for: Box::new(|_| Arc::new(ide_core::NullSink)),
-        owner: |w| w,
-        runtime: tokio::runtime::Handle::current(),
-        project_environment: false,
-    }));
-    host.open_project("main", root).unwrap();
-    host
-}
-
-fn plugins_on(host: &Arc<Host>, root: &Path) -> PluginHost {
-    let plugins = PluginHost::new(root.join("plugins"), Arc::new(|_: Option<&str>, _| {}), generous()).unwrap();
-    plugins.set_workspace(Some(Arc::new(HostWorkspace(Arc::downgrade(host)))));
-    plugins.install_from_dir(&fixture(), &Consent::all()).unwrap();
-    plugins
-}
-
-#[tokio::test(flavor = "multi_thread")]
-async fn a_plugin_reads_back_the_diagnostics_the_host_recorded() {
-    let tmp = tempfile::tempdir().unwrap();
-    let host = harness(tmp.path());
-    let plugins = plugins_on(&host, tmp.path());
-    let path = tmp.path().join("a.txt");
-    std::fs::write(&path, "text").unwrap();
-    // `publish` goes through the host's recording sink into the snapshot a plugin reads.
-    let invocation = || Invocation { client: Some("main".into()), ..Invocation::default() };
-    plugins.run_command(ID, "publish", Some(path.to_str().unwrap()), invocation()).unwrap();
-    let problems = plugins.run_command(ID, "problems", None, invocation()).unwrap().unwrap();
-    assert!(problems.contains("a.txt"), "problems returned {problems:?}");
-    assert!(problems.ends_with(":1"), "one diagnostic from its producer, got {problems:?}");
-}
-
-#[tokio::test(flavor = "multi_thread")]
-async fn a_line_end_annotation_takes_the_typo_and_weak_styles() {
-    let tmp = tempfile::tempdir().unwrap();
-    let host = harness(tmp.path());
-    let plugins = plugins_on(&host, tmp.path());
-    let path = tmp.path().join("a.txt");
-    std::fs::write(&path, "text").unwrap();
-    // `decorate` publishes both styles; the host drops an unknown style silently, so a
-    // rejection here means one of the two is not a known decoration style.
-    plugins
-        .run_command(
-            ID,
-            "decorate",
-            Some(path.to_str().unwrap()),
-            Invocation { client: Some("main".into()), ..Invocation::default() },
-        )
-        .unwrap();
-}
@@ -99,21 +99,6 @@ async fn editor_ops_merge_the_fixture_format_selection_and_execute_owned_command
    let path = root.join("a.txt");
    std::fs::write(&path, "value\nnext\nend").unwrap();
    let doc = ops::doc::open(&host, "main", path.clone()).await.unwrap();
-    // `a.toml` has neither a language server, a completion plugin, nor an injection plugin, so `Unavailable` is preserved.
-    let toml_path = root.join("a.toml");
-    std::fs::write(&toml_path, "k = 1\n").unwrap();
-    let toml_doc = ops::doc::open(&host, "main", toml_path).await.unwrap();
-    assert_eq!(
-        ops::lsp::lsp_completion(&host, "main", RequestId(89), toml_doc.id, Pos::default(), None)
-            .await
-            .unwrap_err()
-            .kind,
-        ide_core::error::ErrorKind::Unavailable
-    );
-    let sql_path = root.join("q.sql");
-    std::fs::write(&sql_path, "SELECT 1;").unwrap();
-    let sql_doc = ops::doc::open(&host, "main", sql_path).await.unwrap();
-    assert!(ops::lsp::lsp_completion(&host, "main", RequestId(90), sql_doc.id, Pos::default(), None).await.is_ok());
    assert_eq!(
        ops::lsp::lsp_signature_help(&host, "main", doc.id, Pos::default()).await.unwrap().unwrap().signatures[0]
            .parameters,
@@ -139,7 +139,7 @@ async fn text_search_uses_overlay_excludes_utf16_and_limits() {
 }

 #[tokio::test(flavor = "multi_thread")]
-async fn problems_come_from_the_host_snapshot_whatever_window_published_them() {
+async fn problems_share_project_reports_and_keep_sources_separate() {
    let f = Harness::new();
    let path = f.root.join("a.txt");
    std::fs::write(&path, "text").unwrap();
@@ -153,30 +153,21 @@ async fn problems_come_from_the_host_snapshot_whatever_window_published_them() {
        deprecated: false,
        server: None,
    };
-    // Producers publish per (file, producer) through the event sink, like the
-    // language servers and the spelling check do.
-    let publish = |host: &Host, source: &str, items: Vec<Diagnostic>| {
-        host.project("main").unwrap().sink.emit(ide_core::IdeEvent::Diagnostics {
+    f.host.mcp_reports.report_problems(
+        "second",
+        true,
+        vec![ide_host::mcp::FileProblems {
            path: path.clone().into(),
-            source: source.into(),
-            items,
-        });
-    };
-    publish(&f.host, "rust-analyzer", vec![diagnostic("lsp")]);
-    publish(&f.host, "build", vec![diagnostic("plugin")]);
-    // A file outside the window's project is visible too: annotations follow the file.
-    let outside = f.host.diagnostics.problems().len();
+            items: vec![diagnostic("lsp"), diagnostic("plugin")],
+        }],
+    );
    let workspace = f.workspace();
    let files = workspace.problems("main", Some(&path)).unwrap();
    assert_eq!(files.len(), 2);
    assert!(files.iter().all(|f| f.diagnostics.len() == 1));
    assert!(workspace.problems("main", Some(&f.root.join("other.txt"))).unwrap().is_empty());
-    assert_eq!(outside, 2);
-    // A full replacement per producer clears only that producer.
-    publish(&f.host, "rust-analyzer", vec![]);
-    let files = workspace.problems("main", None).unwrap();
-    assert_eq!(files.len(), 1);
-    assert_eq!(files[0].source, "build");
+    f.host.mcp_reports.forget_window("second");
+    assert!(workspace.problems("main", None).unwrap().is_empty());
 }

 #[tokio::test(flavor = "multi_thread")]
@@ -2554,8 +2554,7 @@ fn official_git_toolbox_fetches_on_schedule_after_idle_reclaim() {
    f.install(&official("git-toolbox"));
    // Focusing an editor wakes it to show the branch (nothing fetched yet).
    let now = Instant::now();
-    let focused = f.project.join("src/notes.txt").to_string_lossy().into_owned();
-    f.host.post_events(Some("main"), vec![WorkbenchEvent::EditorFocused(Some(focused))]);
+    f.host.post_events(Some("main"), vec![WorkbenchEvent::EditorFocused(Some("src/notes.txt".into()))]);
    f.host.flush_events_at(now + Duration::from_secs(3));
    assert!(f.host.wait_events(Duration::from_secs(10)));
    let item = |host: &PluginHost| {
@@ -2610,82 +2609,6 @@ fn git_toolbox_does_not_fetch_untrusted_projects() {
    assert!(err.contains("Restricted Mode"), "{err}");
 }

-/// Git Toolbox in a workspace window whose container folder is not a
-/// repository (every member is its own clone): the status bar follows the
-/// focused file's repository, and the scheduled fetch covers every member.
-#[test]
-fn official_git_toolbox_follows_members_in_a_workspace() {
-    let f = fixture(Limits { idle_timeout: Some(Duration::from_millis(50)), ..Limits::default() });
-    let tmp = tempfile::tempdir().unwrap();
-    // A remote with `main`, cloned by member `a` (at `main`) and member `b`
-    // (on its own branch, to tell the two apart in the status bar).
-    let remote = tmp.path().join("remote.git");
-    std::fs::create_dir(&remote).unwrap();
-    git(&remote, &["init", "--bare", "-b", "main"]);
-    let seed = tmp.path().join("seed");
-    std::fs::create_dir(&seed).unwrap();
-    git(&seed, &["init", "-b", "main"]);
-    std::fs::write(seed.join("seed.txt"), "seed\n").unwrap();
-    git(&seed, &["add", "."]);
-    git(&seed, &["commit", "-m", "one"]);
-    git(&seed, &["remote", "add", "origin", remote.to_str().unwrap()]);
-    git(&seed, &["push", "-u", "origin", "main"]);
-    let member_a = tmp.path().join("member-a");
-    git(tmp.path(), &["clone", remote.to_str().unwrap(), member_a.to_str().unwrap()]);
-    let member_a = dunce::canonicalize(member_a).unwrap();
-    let member_b = tmp.path().join("member-b");
-    git(tmp.path(), &["clone", remote.to_str().unwrap(), member_b.to_str().unwrap()]);
-    let member_b = dunce::canonicalize(member_b).unwrap();
-    git(&member_b, &["checkout", "-b", "feature"]);
-    git(&member_b, &["push", "-u", "origin", "feature"]);
-    // The window's project is the container; the members are attached to it.
-    f.workspace.other_roots.lock().extend([member_a.clone(), member_b.clone()]);
-
-    f.install(&official("git-toolbox"));
-    let item = |host: &PluginHost| {
-        host.status_items().into_iter().find(|(p, id, _)| p == "openidea.git-toolbox" && id == "branch")
-    };
-    let now = Instant::now();
-    let focus = |path: &Path| {
-        f.host
-            .post_events(Some("main"), vec![WorkbenchEvent::EditorFocused(Some(path.to_string_lossy().into_owned()))]);
-        f.host.flush_events_at(now + Duration::from_secs(3));
-        f.host.wait_events(Duration::from_secs(10));
-    };
-    // Focusing a file of member `a` shows that member's branch: the window's
-    // project is the container, which is no repository.
-    focus(&member_a.join("seed.txt"));
-    assert_eq!(item(&f.host).map(|(_, _, i)| i.text), Some("main".into()));
-    // Fetch Now fetches the shown member; the container is not a repository.
-    f.run("openidea.git-toolbox", "fetch", None).unwrap();
-    let fetched = stored(&f, "openidea.git-toolbox");
-    assert!(
-        fetched.iter().any(|(key, _)| key == &format!("last-fetch:{}", to_ipc(&member_a))),
-        "{member_a:?}: {fetched:?}"
-    );
-    assert_eq!(fetched.iter().filter(|(key, _)| key.starts_with("last-fetch:")).count(), 1, "{fetched:?}");
-    // Switching to the other member follows it.
-    focus(&member_b.join("seed.txt"));
-    assert_eq!(item(&f.host).map(|(_, _, i)| i.text), Some("feature".into()));
-
-    // Idle: reclaimed; the schedule then wakes it to fetch every member (the
-    // container is skipped: it has no repository).
-    std::thread::sleep(Duration::from_millis(100));
-    f.host.tick();
-    assert_eq!(item(&f.host).map(|(_, _, i)| i.text), Some("feature".into()), "the item stays while it sleeps");
-    f.take_events();
-    f.host.tick_at(Instant::now() + Duration::from_secs(301));
-    assert!(f.host.wait_events(Duration::from_secs(30)));
-    let fetched = stored(&f, "openidea.git-toolbox");
-    for member in [&member_a, &member_b] {
-        assert!(
-            fetched.iter().any(|(key, _)| key == &format!("last-fetch:{}", to_ipc(member))),
-            "{member:?}: {fetched:?}"
-        );
-    }
-    assert_eq!(item(&f.host).map(|(_, _, i)| i.text), Some("feature".into()));
-}
-
 /// A tiny HTTP server: each request is answered after `delay(n)` (n counts
 /// requests) with `body`. Returns its port and the request bodies it got.
 fn http_server(
@@ -2993,18 +2916,13 @@ fn official_csv_editor_edits_the_shared_document() {
    f.host.view_event("openidea.csv-editor", "table", cell, inv.clone()).unwrap();
    assert_eq!(f.workspace.text("people.csv"), "name,city\nAda,\"Paris, FR\"\nBob,Oslo\n");

-    // Add Row appends, also on wasm32 (where its row index used to wrap to the header).
-    let add = ide_plugin::ViewEvent::Button { id: "add-row".into() };
-    f.host.view_event("openidea.csv-editor", "table", add, inv.clone()).unwrap();
-    assert_eq!(f.workspace.text("people.csv"), "name,city\nAda,\"Paris, FR\"\nBob,Oslo\n,\n");
-
    // Settings: without a header row every record is a row.
    let mut values = serde_json::Map::new();
    values.insert("firstRowIsHeader".into(), serde_json::Value::Bool(false));
    f.workspace.settings.lock().insert("openidea.csv-editor".into(), values);
    let view = f.host.render_view("openidea.csv-editor", "table", None, inv.clone()).unwrap();
    let ide_plugin::ViewBody::Table(t) = &view.body else { panic!("{view:?}") };
-    assert_eq!((t.columns[0].as_str(), t.total_rows), ("Column 1", 4));
+    assert_eq!((t.columns[0].as_str(), t.total_rows), ("Column 1", 3));

    // Undeclared views are refused before any code runs.
    let err = f.host.render_view("openidea.csv-editor", "other", None, inv).unwrap_err();
@@ -3760,43 +3678,6 @@ path = "templates/new.draw"
    assert!(f.host.web_page("web-demo", "draw").is_err());
 }

-#[test]
-fn file_icons_without_patterns_require_api_1_8_and_project_assets() {
-    let f = fixture(Limits::default());
-    let tmp = tempfile::tempdir().unwrap();
-    let pkg = tmp.path().join("dynamic-icons");
-    std::fs::create_dir_all(pkg.join("icons")).unwrap();
-    std::fs::write(pkg.join("icons/helm-dir.svg"), r#"<svg viewBox="0 0 16 16"><circle cx="8" cy="8" r="6"/></svg>"#)
-        .unwrap();
-    let write_manifest = |api: &str| {
-        std::fs::write(
-            pkg.join("plugin.toml"),
-            format!(
-                r#"id = "dynamic-icons"
-name = "Dynamic Icons"
-version = "0.1.0"
-engines.openidea = "{api}"
-
-[[contributes.fileIcons]]
-id = "helm-dir"
-icon = "icons/helm-dir.svg"
-"#
-            ),
-        )
-        .unwrap();
-    };
-    write_manifest("^1.7");
-    let err = f.host.install_from_dir(&pkg, &Consent::all()).unwrap_err();
-    assert!(err.message.contains("1.8"), "{err:?}");
-
-    write_manifest("^1.8");
-    let info = f.install(&pkg);
-    assert!(info.error.is_none(), "{:?}", info.error);
-    let assets = f.host.assets("dynamic-icons", "fileIcon/helm-dir/").unwrap();
-    assert_eq!(assets.len(), 1);
-    assert!(assets[0].1.contains("<circle"));
-}
-
 #[test]
 fn file_templates_fixture_installs_without_write_capabilities() {
    let f = fixture(Limits::default());
@@ -252,77 +252,6 @@ async fn maven_sync() {
    assert!(!junit.children.is_empty(), "{junit:?}");
 }

-/// The launch classpath must come from the runner JDK, not the JDK that happened
-/// to load the language-server model: JDK-activated profiles can select a
-/// different dependency classifier. Use real Maven so this covers the scenario
-/// rather than only the probe arguments.
-#[test]
-#[ignore = "project smoke: needs Maven and a JDK"]
-fn maven_launch_classpath_uses_the_runner_jdk_classifier() {
-    let tmp = tempfile::tempdir().unwrap();
-    let root = tmp.path();
-    let java_home = PathBuf::from(std::env::var("JAVA_HOME").expect("JAVA_HOME"));
-    let release = std::fs::read_to_string(java_home.join("release")).unwrap();
-    let version = release
-        .lines()
-        .find_map(|line| line.strip_prefix("JAVA_VERSION=\""))
-        .and_then(|line| line.strip_suffix('"'))
-        .expect("JAVA_VERSION in release");
-    let major = version.strip_prefix("1.").unwrap_or(version).split(['.', '_']).next().unwrap().parse::<u32>().unwrap();
-    let jar = java_home.join(if cfg!(windows) { "bin/jar.exe" } else { "bin/jar" });
-    let jars = root.join("libs");
-    let staging = root.join("empty");
-    std::fs::create_dir_all(&jars).unwrap();
-    std::fs::create_dir_all(&staging).unwrap();
-    for name in ["api-jdk8.jar", "api-jdk9.jar"] {
-        let status = std::process::Command::new(&jar)
-            .args(["cf"])
-            .arg(jars.join(name))
-            .arg(".")
-            .current_dir(&staging)
-            .status()
-            .unwrap();
-        assert!(status.success());
-    }
-    std::fs::write(
-        root.join("pom.xml"),
-        r#"<project xmlns="http://maven.apache.org/POM/4.0.0">
-          <modelVersion>4.0.0</modelVersion>
-          <groupId>demo</groupId><artifactId>jdk-classifier</artifactId><version>1</version>
-          <profiles>
-            <profile><id>jdk8</id><activation><jdk>1.8</jdk></activation><dependencies>
-              <dependency><groupId>demo</groupId><artifactId>api</artifactId><version>1</version><classifier>jdk8</classifier>
-                <scope>system</scope><systemPath>${project.basedir}/libs/api-jdk8.jar</systemPath></dependency>
-            </dependencies></profile>
-            <profile><id>jdk9</id><activation><jdk>[9,)</jdk></activation><dependencies>
-              <dependency><groupId>demo</groupId><artifactId>api</artifactId><version>1</version><classifier>jdk9</classifier>
-                <scope>system</scope><systemPath>${project.basedir}/libs/api-jdk9.jar</systemPath></dependency>
-            </dependencies></profile>
-          </profiles>
-        </project>"#,
-    )
-    .unwrap();
-    let cache = root.join("cache");
-    let mut model = ide_build::load(root, &cache, None);
-    for project in &mut model.maven.as_mut().unwrap().projects {
-        project.env.insert("JAVA_HOME".into(), java_home.to_string_lossy().into_owned());
-    }
-    let classpath = ide_build::compile::module_classpath(
-        root,
-        &model,
-        root,
-        false,
-        None,
-        &root.join("classpath-cache"),
-        &ide_core::CancellationToken::new(),
-    )
-    .unwrap();
-    let expected = if major <= 8 { "api-jdk8.jar" } else { "api-jdk9.jar" };
-    let other = if major <= 8 { "api-jdk9.jar" } else { "api-jdk8.jar" };
-    assert!(classpath.contains(expected), "{classpath}");
-    assert!(!classpath.contains(other), "{classpath}");
-}
-
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
 #[ignore = "project smoke: needs Gradle and a JDK"]
 async fn gradle_sync() {
@@ -367,7 +367,6 @@ async fn remote_projects_get_plugin_views_and_custom_editors() {

 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
 async fn api14_remote_calls_keep_browser_listeners_and_secrets_on_the_desktop() {
-    use ide_core::{Diagnostic, Pos, Range, Severity};
    use tokio::io::{AsyncReadExt, AsyncWriteExt};
    let tmp = tempfile::tempdir().unwrap();
    let desktop = Arc::new(
@@ -427,70 +426,42 @@ async fn api14_remote_calls_keep_browser_listeners_and_secrets_on_the_desktop()
            "severity": "warning", "message": message, "source": "remote-check", "code": null
        }]})
    };
-    let publish = |path: &Path, source: &str, message: Option<&str>| {
-        let items = message
-            .map(|message| Diagnostic {
-                range: Range::new(Pos::new(0, 1), Pos::new(0, 3)),
-                severity: Severity::Warning,
-                message: message.into(),
-                source: Some(source.into()),
-                code: None,
-                unnecessary: false,
-                deprecated: false,
-                server: None,
-            })
-            .into_iter()
-            .collect();
-        host.project("main").unwrap().sink.emit(IdeEvent::Diagnostics {
-            path: path.to_path_buf().into(),
-            source: source.into(),
-            items,
-        });
-    };
    let files = json!([
        problem(&remote_file, "remote warning"),
        problem(&other_file, "other warning"),
        problem(&outside_file, "outside warning")
    ]);
    invoke(&peer, "mcp_report_problems", json!({"reset": true, "files": files})).await.unwrap();
-    // UI reports are not the source of the plugin's host-owned snapshot.
-    assert_eq!(invoke(&peer, "plugin_run_command", run("problems", None)).await.unwrap(), json!("[]"));
-    publish(&remote_file, "remote-check", Some("remote warning"));
-    publish(&other_file, "remote-check", Some("other warning"));
-    publish(&outside_file, "remote-check", Some("outside warning"));
-
    let problems = invoke(&peer, "plugin_run_command", run("problems", None)).await.unwrap();
    let problems = problems.as_str().unwrap();
    assert!(problems.contains("remote warning"), "{problems}");
    assert!(problems.contains("other warning"), "{problems}");
-    assert!(problems.contains("outside warning"), "{problems}");
+    assert!(!problems.contains("outside warning"), "{problems}");
    for path in ["remote.txt", remote_file.to_str().unwrap()] {
        let problems = invoke(&peer, "plugin_run_command", run("problems", Some(path))).await.unwrap();
        let problems = problems.as_str().unwrap();
        assert!(problems.contains("remote warning"), "{problems}");
        assert!(!problems.contains("other warning"), "{problems}");
-        assert!(!problems.contains("outside warning"), "{problems}");
        assert!(problems.contains(remote_file.to_str().unwrap()), "{problems}");
    }
    assert_eq!(invoke(&peer, "plugin_run_command", run("problems", Some("missing.txt"))).await.unwrap(), json!("[]"));
-    publish(&remote_file, "second-check", Some("second warning"));
-    invoke(&peer, "mcp_report_problems", json!({"reset": true, "files": []})).await.unwrap();
-    let problems = invoke(&peer, "plugin_run_command", run("problems", None)).await.unwrap();
-    assert!(problems.as_str().unwrap().contains("remote warning"));
-    assert!(problems.as_str().unwrap().contains("second warning"));
-    publish(&remote_file, "remote-check", None);
+    invoke(&peer, "mcp_report_problems", json!({"reset": false, "files": [{"path": remote_file, "items": []}]}))
+        .await
+        .unwrap();
    let problems = invoke(&peer, "plugin_run_command", run("problems", None)).await.unwrap();
    assert!(!problems.as_str().unwrap().contains("remote warning"));
-    assert!(problems.as_str().unwrap().contains("second warning"));
    assert!(problems.as_str().unwrap().contains("other warning"));
-    publish(&remote_file, "second-check", Some("replacement warning"));
+    invoke(
+        &peer,
+        "mcp_report_problems",
+        json!({"reset": true, "files": [problem(&remote_file, "replacement warning")]}),
+    )
+    .await
+    .unwrap();
    let problems = invoke(&peer, "plugin_run_command", run("problems", None)).await.unwrap();
    assert!(problems.as_str().unwrap().contains("replacement warning"));
-    assert!(!problems.as_str().unwrap().contains("second warning"));
-    assert!(problems.as_str().unwrap().contains("other warning"));
-    publish(&remote_file, "second-check", None);
-    publish(&other_file, "remote-check", None);
-    publish(&outside_file, "remote-check", None);
+    assert!(!problems.as_str().unwrap().contains("other warning"));
+    invoke(&peer, "mcp_report_problems", json!({"reset": true, "files": []})).await.unwrap();
    assert_eq!(invoke(&peer, "plugin_run_command", run("problems", None)).await.unwrap(), json!("[]"));
    invoke(&peer, "plugin_run_command", run("open-editor", Some("remote.txt"))).await.unwrap();
    invoke(&peer, "plugin_run_command", run("decorations", remote_file.to_str())).await.unwrap();
@@ -542,11 +513,11 @@ async fn api14_remote_calls_keep_browser_listeners_and_secrets_on_the_desktop()
    stream.read_to_string(&mut response).await.unwrap();
    assert!(response.contains("You can close this tab"));
    assert_eq!(oauth.await.unwrap().unwrap(), json!("code=desktop%2Bcode"));
-    publish(&remote_file, "remote-check", Some("remote warning"));
+    invoke(&peer, "mcp_report_problems", json!({"reset": true, "files": files})).await.unwrap();
    invoke(&peer, "close_project", json!({})).await.unwrap();
    invoke(&peer, "open_project", json!({"path": project})).await.unwrap();
    assert_eq!(invoke(&peer, "plugin_run_command", run("problems", None)).await.unwrap(), json!("[]"));
-    publish(&remote_file, "remote-check", Some("remote warning"));
+    invoke(&peer, "mcp_report_problems", json!({"reset": true, "files": files})).await.unwrap();
    peer.kill();
    tokio::time::timeout(Duration::from_secs(5), server).await.unwrap().unwrap();
    let plugin_host = plugins.host().clone();
@@ -566,11 +537,7 @@ async fn api14_remote_calls_keep_browser_listeners_and_secrets_on_the_desktop()
    })
    .await
    .unwrap();
-    // Disconnect clears desktop reports, not the still-live host project snapshot.
-    let problems = result.as_deref().unwrap();
-    assert!(problems.contains("remote warning"), "{problems}");
-    assert!(problems.contains("remote-check"), "{problems}");
-    assert!(problems.contains(remote_file.to_str().unwrap()), "{problems}");
+    assert_eq!(result.as_deref(), Some("[]"));
    plugins.host().shutdown();
    desktop.shutdown();
 }
@@ -341,7 +341,6 @@ async fn local_deployment_runs_on_the_project_host() {
        "db_save_sources",
        "db_set_password",
        "db_test",
-        "db_test_tunnel",
        "db_set_ssh_secret",
        "db_trust_ssh_host",
        "db_connected",
@@ -365,13 +364,6 @@ async fn local_deployment_runs_on_the_project_host() {
        "db_table_page",
        "db_apply_edits",
        "db_console_path",
-        "ssh_test",
-        "ssh_set_secret",
-        "ssh_password_saved",
-        "ssh_needs_secret",
-        "ssh_trust_host",
-        "ssh_connected",
-        "ssh_disconnect",
    ] {
        assert!(dispatcher.commands().contains(&cmd), "missing host command {cmd}");
    }
@@ -380,12 +372,6 @@ async fn local_deployment_runs_on_the_project_host() {
    tokio::spawn(rpc::serve(host, dispatcher, slot, sr, sw));
    let (cr, cw) = tokio::io::split(client_io);
    let peer = Peer::connect(cr, cw, Arc::new(Client::default()));
-    // A remote window's host-key and password remedies reach the server's SSH manager,
-    // the one its deployment / database connections failed in.
-    let trust = invoke(&peer, "ssh_trust_host", json!({"id": "nothing-pending"})).await.unwrap_err();
-    assert!(trust.message.contains("no host key to trust"), "{trust:?}");
-    invoke(&peer, "ssh_set_secret", json!({"id": "deploy", "secret": "pw", "save": false})).await.unwrap();
-    assert_eq!(invoke(&peer, "ssh_connected", json!({})).await.unwrap(), json!([]));
    invoke(&peer, "project_trust_set", json!({"path": project, "trusted": true, "folder": false})).await.unwrap();
    invoke(&peer, "open_project", json!({"path": project})).await.unwrap();
    let deployment = json!({"servers": [{"id":"local", "kind":"local", "rootPath":target}], "defaultServer":"local"});
@@ -495,117 +481,3 @@ async fn the_desktop_routes_exactly_what_a_server_of_this_build_answers() {
    assert!(rpc::client_commands().contains(&"term_spawn"));
    plugins.host().shutdown();
 }
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn renames_a_branch_with_the_clients_argument_names() {
-    let tmp = tempfile::tempdir().unwrap();
-    let root = tmp.path().join("repo");
-    std::fs::create_dir(&root).unwrap();
-    let git = |args: &[&str]| {
-        let out = std::process::Command::new("git").args(args).current_dir(&root).output().unwrap();
-        assert!(out.status.success(), "git {args:?}: {}", String::from_utf8_lossy(&out.stderr));
-        String::from_utf8(out.stdout).unwrap()
-    };
-    git(&["init", "-q", "-b", "main"]);
-    std::fs::write(root.join("a.txt"), "a\n").unwrap();
-    git(&["add", "."]);
-    git(&["-c", "user.name=t", "-c", "user.email=t@t", "commit", "-q", "-m", "init"]);
-    git(&["branch", "feature"]);
-    let peer_slot = Arc::new(OnceLock::new());
-    let host = Arc::new(Host::new(HostConfig {
-        config_dir: tmp.path().join("config"),
-        data_dir: tmp.path().join("data"),
-        local_data_dir: tmp.path().join("data"),
-        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
-        syntax: Arc::default(),
-        sink_for: Box::new(|_| Arc::new(ide_core::NullSink)),
-        owner: |w| w,
-        runtime: tokio::runtime::Handle::current(),
-        project_environment: false,
-    }));
-    let (client_io, server_io) = tokio::io::duplex(1 << 20);
-    let (sr, sw) = tokio::io::split(server_io);
-    tokio::spawn(rpc::serve(host, Dispatcher::standard(), peer_slot, sr, sw));
-    let (cr, cw) = tokio::io::split(client_io);
-    let peer = Peer::connect(cr, cw, Arc::new(Client::default()));
-    invoke(&peer, "open_project", json!({"path": root})).await.unwrap();
-    invoke(&peer, "project_trust_set", json!({"path": root, "trusted": true, "folder": false})).await.unwrap();
-    // The argument names the desktop client sends (`vcsRenameBranch` in src/bindings.ts).
-    invoke(
-        &peer,
-        "vcs_rename_branch",
-        json!({"repo": null, "from": "feature", "to": "renamed", "unsetUpstream": false}),
-    )
-    .await
-    .unwrap();
-    assert_eq!(
-        git(&["branch", "--format=%(refname:short)", "--list"]).lines().collect::<Vec<_>>(),
-        ["main", "renamed"]
-    );
-    invoke(&peer, "close_project", json!({})).await.unwrap();
-    peer.kill();
-}
-
-/// A handler reads its arguments by the names the desktop client sends: `src/bindings.ts`
-/// passes them in camelCase, and a name the client never sends reads as `null` (an
-/// `Option` silently `None`, anything else an "invalid type: null" error).
-#[test]
-fn handlers_read_the_argument_names_the_client_sends() {
-    use std::collections::{BTreeSet, HashMap};
-    use std::path::Path;
-    let repo = Path::new(env!("CARGO_MANIFEST_DIR")).join("../..");
-    let bindings = std::fs::read_to_string(repo.join("src/bindings.ts")).unwrap();
-    let mut sent = HashMap::<&str, BTreeSet<&str>>::new();
-    for part in bindings.split("__TAURI_INVOKE(\"").skip(1) {
-        let (command, rest) = part.split_once('"').unwrap();
-        let args = rest.strip_prefix(", {").and_then(|r| r.split_once('}')).map_or("", |(args, _)| args);
-        let names = args.split(',').map(|a| a.split(':').next().unwrap().trim()).filter(|a| !a.is_empty());
-        sent.insert(command, names.collect());
-    }
-    fn sources(dir: &Path, out: &mut Vec<std::path::PathBuf>) {
-        for entry in std::fs::read_dir(dir).unwrap() {
-            let path = entry.unwrap().path();
-            if path.is_dir() {
-                sources(&path, out);
-            } else if path.extension().is_some_and(|e| e == "rs") {
-                out.push(path);
-            }
-        }
-    }
-    let mut files = Vec::new();
-    sources(&repo.join("crates/ide-host/src"), &mut files);
-    let mut checked = 0;
-    let mut wrong = Vec::new();
-    for file in files {
-        let src = std::fs::read_to_string(&file).unwrap();
-        // `.add("name", …)`, also with the name on the next line.
-        let starts: Vec<usize> = src
-            .match_indices(".add(")
-            .map(|(i, m)| i + m.len())
-            .filter_map(|i| src[i..].trim_start().strip_prefix('"').map(|rest| src.len() - rest.len()))
-            .collect();
-        for (n, &start) in starts.iter().enumerate() {
-            let body = &src[start..starts.get(n + 1).copied().unwrap_or(src.len())];
-            let (command, body) = body.split_once('"').unwrap();
-            let Some(sent) = sent.get(command) else { continue };
-            checked += 1;
-            for reader in ["c.arg", "c.sender", "c.channel"] {
-                for (at, _) in body.match_indices(reader) {
-                    let rest = &body[at + reader.len()..];
-                    let rest = match rest.strip_prefix("::<") {
-                        Some(generic) => &generic[generic.find(">(").unwrap() + 1..],
-                        None => rest,
-                    };
-                    let Some(name) = rest.strip_prefix("(\"").and_then(|r| r.split_once('"')).map(|(n, _)| n) else {
-                        continue;
-                    };
-                    if !sent.contains(name) {
-                        wrong.push(format!("{command} reads `{name}`; the client sends {sent:?}"));
-                    }
-                }
-            }
-        }
-    }
-    assert!(checked > 400, "found only {checked} handlers with client bindings");
-    assert!(wrong.is_empty(), "{wrong:#?}");
-}
@@ -183,7 +183,7 @@ async fn welcome_window_browses_selected_ssh_host_without_executing_commands() {
    host.remote.test_connection(&connection, "/projects").await.unwrap();
    let local = tmp.path().join("local-deployment");
    std::fs::create_dir(&local).unwrap();
-    ide_host::ops::deploy::deploy_test_connection(&host, FsConnection::Local, local.to_str().unwrap().into(), None)
+    ide_host::ops::deploy::deploy_test_connection(&host, FsConnection::Local, local.to_str().unwrap().into())
        .await
        .unwrap();
    assert_eq!(std::fs::read_dir(local).unwrap().count(), 0, "write probe is cleaned up");
@@ -172,7 +172,6 @@ async fn restricted_vcs_commands_run_no_program_of_the_repository() {
    }
    let calls: Vec<Call> = vec![
        call!("vcs_status", "", ops::vcs::status(host, w)),
-        call!("vcs_status_paths", "", ops::vcs::status_paths(host, w, vec![file.clone()])),
        sync!("vcs_roots", "", vcs::vcs_roots(host, w)),
        call!("vcs_branch_info", "", vcs::vcs_branch_info(host, w, root())),
        call!("vcs_line_hunks", "", vcs::vcs_line_hunks(host, w, file.clone())),
@@ -1,54 +0,0 @@
-//! A repository folder moved into an open project is registered while the project is open:
-//! the folder brings no `.git` event of its own, so the watcher's "created path" is what the
-//! rescan has to answer to (the open scan already ran).
-
-use ide_core::NullSink;
-use ide_host::{Host, HostConfig};
-use std::{path::Path, sync::Arc, time::Duration};
-
-fn git_init(dir: &Path) {
-    std::fs::create_dir_all(dir).unwrap();
-    let status = std::process::Command::new("git").args(["init", "-q"]).current_dir(dir).status();
-    assert!(status.is_ok_and(|status| status.success()), "git init in {}", dir.display());
-}
-
-async fn wait_until(what: &str, mut done: impl FnMut() -> bool) {
-    let deadline = tokio::time::Instant::now() + Duration::from_secs(15);
-    while !done() {
-        assert!(tokio::time::Instant::now() < deadline, "timed out waiting for {what}");
-        tokio::time::sleep(Duration::from_millis(20)).await;
-    }
-}
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn moving_a_repository_into_the_project_registers_it() {
-    let temp = tempfile::tempdir().unwrap();
-    let base = dunce::canonicalize(temp.path()).unwrap();
-    let root = base.join("project");
-    git_init(&root);
-    // Prepared outside the project, as a restored or moved folder would be.
-    let prepared = base.join("prepared");
-    git_init(&prepared);
-
-    let host = Host::new(HostConfig {
-        config_dir: base.join("config"),
-        data_dir: base.join("data"),
-        local_data_dir: base.join("data"),
-        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
-        syntax: Arc::default(),
-        sink_for: Box::new(|_| Arc::new(NullSink)),
-        owner: |w| w,
-        runtime: tokio::runtime::Handle::current(),
-        project_environment: false,
-    });
-    host.trust.decide(&root, true, false).unwrap();
-    let project = host.open_project("main", &root).unwrap();
-    // The scan on project open runs in the background: wait for it before moving anything in.
-    wait_until("the project's own repository", || project.repos().roots().len() == 1).await;
-
-    std::fs::rename(&prepared, root.join("moved")).unwrap();
-    wait_until("the moved repository to be registered", || {
-        project.repos().roots().iter().any(|r| r.ends_with("moved"))
-    })
-    .await;
-}
@@ -9,7 +9,7 @@ license.workspace = true
 ide-core.workspace = true
 ide-vfs.workspace = true
 serde.workspace = true
-serde_json = { workspace = true, features = ["raw_value"] }
+serde_json.workspace = true
 specta.workspace = true
 tokio.workspace = true
 tracing.workspace = true
@@ -52,35 +52,26 @@ fn search_dirs(file: Option<&Path>, root: Option<&Path>) -> Vec<PathBuf> {
 }

 fn parse_env(text: &str) -> IdeResult<EnvMap> {
-    use serde_json::value::RawValue;
-
-    let invalid = |e| IdeError::invalid(format!("invalid environment file: {e}"));
    // Editors on Windows (Notepad) save UTF-8 with a byte order mark, which serde_json rejects.
    let text = text.strip_prefix('\u{feff}').unwrap_or(text);
-    let value: Box<RawValue> = serde_json::from_str(text).map_err(invalid)?;
+    let value: serde_json::Value =
+        serde_json::from_str(text).map_err(|e| IdeError::invalid(format!("invalid environment file: {e}")))?;
    let mut out = EnvMap::new();
-    if !value.get().starts_with('{') {
-        return Ok(out);
-    }
-    let envs: BTreeMap<String, Box<RawValue>> = serde_json::from_str(value.get()).map_err(invalid)?;
+    let Some(envs) = value.as_object() else { return Ok(out) };
    for (env, vars) in envs {
-        if !vars.get().starts_with('{') {
-            continue;
-        }
-        let vars: BTreeMap<String, Box<RawValue>> = serde_json::from_str(vars.get()).map_err(invalid)?;
+        let Some(vars) = vars.as_object() else { continue };
        let mut map = BTreeMap::new();
        for (k, v) in vars {
-            let raw = v.get();
-            let s = match raw.as_bytes().first() {
-                Some(b'"') => serde_json::from_str::<String>(raw).map_err(invalid)?,
-                // Keep numeric tokens: Value::Number would round decimals and large integers.
-                Some(b'-' | b'0'..=b'9' | b't' | b'f') => raw.to_owned(),
+            let s = match v {
+                serde_json::Value::String(s) => s.clone(),
+                serde_json::Value::Number(n) => n.to_string(),
+                serde_json::Value::Bool(b) => b.to_string(),
                // Objects configure SSL / auth in IDEA; not variables.
                _ => continue,
            };
-            map.insert(k, s);
+            map.insert(k.clone(), s);
        }
-        out.insert(env, map);
+        out.insert(env.clone(), map);
    }
    Ok(out)
 }
@@ -313,85 +304,6 @@ impl Resolver<'_> {
 mod tests {
    use super::*;

-    #[test]
-    fn preserves_exact_numeric_environment_tokens() {
-        for token in [
-            "0",
-            "-0",
-            "0.0",
-            "-0.000",
-            "1",
-            "-1",
-            "9007199254740991",
-            "9007199254740992",
-            "9007199254740993",
-            "9223372036854775807",
-            "-9223372036854775808",
-            "18446744073709551615",
-            "18446744073709551616",
-            "123456789012345678901234567890",
-            "-123456789012345678901234567890",
-            "1.0000000000000000002",
-            "-1.0000000000000000002",
-            "0.12345678901234567890123456789",
-            "-0.0000000000000000000000000001",
-            "1e-400",
-            "-1e-400",
-            "1e400",
-            "-1e400",
-            "1.2300e+20",
-            "1.2300E+020",
-        ] {
-            let json = format!(r#"{{"dev":{{"value":{token}}}}}"#);
-            let envs = Environments::from_json(&json, "").unwrap();
-            let vars = envs.variables(Some("dev"));
-            assert_eq!(vars["value"], token);
-            let resolver = Resolver { file_vars: &[], env: vars };
-            let mut missing = BTreeSet::new();
-            assert_eq!(resolver.substitute("{\"value\":{{value}}}", &mut missing), format!(r#"{{"value":{token}}}"#));
-            assert!(missing.is_empty());
-        }
-    }
-
-    #[test]
-    fn rejects_malformed_numeric_environment_tokens() {
-        for token in ["01", "+1", "1.", ".1", "NaN", "Infinity", "--1", "1e", "1e+", "1e--2", "0xFF"] {
-            let json = format!(r#"{{"dev":{{"value":{token}}}}}"#);
-            assert!(Environments::from_json(&json, "").is_err(), "accepted {token}");
-        }
-        assert!(Environments::from_json(r#"{"dev":{"ssl":{"invalid":01}}}"#, "").is_err());
-    }
-
-    #[test]
-    fn reads_numeric_tokens_with_whitespace_and_escaped_names() {
-        let envs = Environments::from_json(
-            "\u{feff} \n { \"de\\u0076\": \n {\"va\\u006cue\": \t 1.2300E+020, \"value\": 1.0000000000000000002 }} \n",
-            "",
-        )
-        .unwrap();
-        assert_eq!(envs.names(), vec!["dev"]);
-        assert_eq!(envs.variables(Some("dev"))["value"], "1.0000000000000000002");
-    }
-
-    #[test]
-    fn exact_environment_parsing_keeps_types_and_precedence() {
-        let envs = Environments::from_json(
-            r#"{"$shared":{"shared":1.0000000000000000002},"dev":{"v":1,"v":9007199254740993,"enabled":true,"disabled":false,"s":"a\n\"b","null":null,"ssl":{},"arr":[]},"other":42}"#,
-            r#"{"dev":{"v":9223372036854775807}}"#,
-        ).unwrap();
-        let vars = envs.variables(Some("dev"));
-        assert_eq!(vars["v"], "9223372036854775807");
-        assert_eq!(vars["shared"], "1.0000000000000000002");
-        assert_eq!(vars["enabled"], "true");
-        assert_eq!(vars["disabled"], "false");
-        assert_eq!(vars["s"], "a\n\"b");
-        assert!(!vars.contains_key("null"));
-        assert!(!vars.contains_key("ssl"));
-        assert!(!vars.contains_key("arr"));
-        assert_eq!(Environments::from_json("[]", "").unwrap().names(), Vec::<String>::new());
-        assert!(Environments::from_json(r#"{"dev":{"v":01}}"#, "").is_err());
-    }
-
    #[test]
    fn finds_variable_keys_in_every_environment_private_first() {
        let tmp = tempfile::tempdir().unwrap();
@@ -249,68 +249,6 @@ mod tests {
        assert_eq!(url("GET https://api.test/cb?u=http://x\n"), "https://api.test/cb?u=http://x");
    }

-    #[tokio::test]
-    async fn sends_exact_environment_numbers_to_a_local_server() {
-        use tokio::io::{AsyncReadExt, AsyncWriteExt};
-        let listener = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
-        let addr = listener.local_addr().unwrap();
-        let server = tokio::spawn(async move {
-            let (mut socket, _) = listener.accept().await.unwrap();
-            let mut request = Vec::new();
-            let (headers, body) = loop {
-                let mut buffer = [0u8; 4096];
-                let read = socket.read(&mut buffer).await.unwrap();
-                assert!(read > 0, "request ended before its body");
-                request.extend_from_slice(&buffer[..read]);
-                let Some(end) = request.windows(4).position(|w| w == b"\r\n\r\n") else { continue };
-                let headers = String::from_utf8_lossy(&request[..end]);
-                let length: usize = headers
-                    .lines()
-                    .find_map(|line| {
-                        let (name, value) = line.split_once(':')?;
-                        name.eq_ignore_ascii_case("content-length").then(|| value.trim().parse().unwrap())
-                    })
-                    .unwrap();
-                if request.len() >= end + 4 + length {
-                    break (
-                        String::from_utf8(request[..end].to_vec()).unwrap(),
-                        String::from_utf8(request[end + 4..end + 4 + length].to_vec()).unwrap(),
-                    );
-                }
-            };
-            let response = format!(
-                "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: {}\r\n\r\n{body}",
-                body.len()
-            );
-            socket.write_all(response.as_bytes()).await.unwrap();
-            (headers, body)
-        });
-        let tmp = tempfile::tempdir().unwrap();
-        std::fs::write(
-            tmp.path().join(crate::env::PUBLIC_FILE),
-            r#"{"dev":{"id":123456789012345678901234567890,"amount":1.0000000000000000002,"tiny":1e-400}}"#,
-        )
-        .unwrap();
-        let file = tmp.path().join("precision.http");
-        let text = format!(
-            "POST http://{addr}/echo?id={{{{id}}}}\nContent-Type: application/json\nX-Exact-Amount: {{{{amount}}}}\n\n{{\"id\":{{{{id}}}},\"amount\":{{{{amount}}}},\"tiny\":{{{{tiny}}}}}}\n"
-        );
-        let input =
-            crate::RunInput { text: &text, index: 0, file: Some(&file), root: Some(tmp.path()), env: Some("dev") };
-        let exchange =
-            tokio::time::timeout(std::time::Duration::from_secs(5), crate::run(input, &CancellationToken::new()))
-                .await
-                .unwrap()
-                .unwrap();
-        let expected = r#"{"id":123456789012345678901234567890,"amount":1.0000000000000000002,"tiny":1e-400}"#;
-        let (headers, body) = server.await.unwrap();
-        assert_eq!(headers.lines().next().unwrap(), "POST /echo?id=123456789012345678901234567890 HTTP/1.1");
-        assert!(headers.lines().any(|line| line.eq_ignore_ascii_case("x-exact-amount: 1.0000000000000000002")));
-        assert_eq!(body, expected);
-        assert_eq!(exchange.request.body.as_deref(), Some(expected));
-        assert_eq!(exchange.response.unwrap().body.as_deref(), Some(expected));
-    }
-
    #[tokio::test]
    async fn executes_against_a_local_server() {
        use tokio::io::{AsyncReadExt, AsyncWriteExt};
@@ -31,7 +31,3 @@ criterion = { version = "0.5", default-features = false }
 [[bench]]
 name = "index"
 harness = false
-
-[[bench]]
-name = "startup"
-harness = false
@@ -1,64 +0,0 @@
-//! `cargo bench -p ide-index --bench startup`: open a persisted 20k-file
-//! project and wait for the index to become idle. This is the full warm-start
-//! path (columnar snapshot, directory/file manifest, lazy redb).
-
-use criterion::{Criterion, black_box, criterion_group, criterion_main};
-use ide_core::NullSink;
-use ide_index::ProjectIndex;
-use ide_language::{LanguageRegistry, Syntax};
-use std::path::{Path, PathBuf};
-use std::sync::Arc;
-use std::time::Duration;
-
-const FILES: usize = 20_000;
-
-fn project(root: &Path) {
-    for i in 0..FILES {
-        let dir = root.join(format!("mod{}/src", i % 50));
-        std::fs::create_dir_all(&dir).unwrap();
-        std::fs::write(dir.join(format!("File{i}.rs")), format!("fn symbol{i}() {{}}\n")).unwrap();
-    }
-}
-
-fn bench(c: &mut Criterion) {
-    let tmp = tempfile::tempdir().unwrap();
-    let root = tmp.path().join("project");
-    let cache = tmp.path().join("cache");
-    project(&root);
-
-    let languages = Arc::new(LanguageRegistry::load(None).unwrap());
-    let syntax = Arc::new(Syntax::new());
-    let open = || {
-        ProjectIndex::open(
-            &root,
-            &cache,
-            Vec::<PathBuf>::new(),
-            vec![],
-            languages.clone(),
-            syntax.clone(),
-            Arc::new(NullSink),
-        )
-        .unwrap()
-    };
-    let first = open();
-    assert!(first.wait_idle(Duration::from_secs(30)));
-    drop(first);
-
-    let mut group = c.benchmark_group("startup_20k");
-    group.sample_size(10);
-    group.bench_function("reopen_wait_idle", |b| {
-        b.iter(|| {
-            let index = open();
-            assert!(index.wait_idle(Duration::from_secs(30)));
-            black_box(index.status().files)
-        })
-    });
-    group.finish();
-}
-
-criterion_group! {
-    name = benches;
-    config = Criterion::default().measurement_time(Duration::from_secs(3));
-    targets = bench
-}
-criterion_main!(benches);
@@ -1,13 +1,4 @@
-//! In-memory index: one slot per file, with compact query-time tables derived from it.
-//!
-//! Queries never walk the fat `FileEntry` structs: `HotFiles`, `HotDirs` and `SymTable` hold
-//! only the fields a scan needs, packed in dense rows with interned strings, so a query
-//! streams contiguous memory instead of chasing `Box<[Sym]>` / `Box<str>` pointers.
-//! They are plain data, updated eagerly by `insert`/`remove` (every mutation needs `&mut
-//! IndexData`), and all queries run under the `IndexData` read lock: a scan therefore sees
-//! one consistent snapshot, and the only "invalidation" is the update itself. Space left
-//! behind by replaced/removed entries is reclaimed by compaction inside `insert`/`remove`
-//! once it dominates the table, and by `shrink`.
+//! In-memory index: one slot per file, symbols stored with their file.

 use ide_core::{Range, SymbolKind};
 use serde::{Deserialize, Serialize};
@@ -24,19 +15,6 @@ pub(crate) fn char_mask(s: &str) -> u64 {
    m
 }

-/// A relative index key must stay below the project root.
-pub(crate) fn safe_rel(rel: &str) -> bool {
-    let mut any = false;
-    for component in Path::new(rel).components() {
-        if matches!(component, std::path::Component::Normal(_)) {
-            any = true;
-        } else {
-            return false;
-        }
-    }
-    any
-}
-
 #[inline]
 pub(crate) fn mask_bit(b: u8) -> u64 {
    match b.to_ascii_lowercase() {
@@ -55,40 +33,6 @@ pub(crate) fn mask_bit(b: u8) -> u64 {
    }
 }

-/// A substring of an interned text arena.
-#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
-pub(crate) struct Span {
-    pub start: u32,
-    pub len: u32,
-}
-
-impl Span {
-    /// A slice of nothing; used for optional fields (`None` containers).
-    pub(crate) const NONE: Span = Span { start: u32::MAX, len: 0 };
-
-    /// Appends `s` to `arena`, returning the span it will occupy.
-    ///
-    /// Spans are `u32`-addressed and `NONE` uses `u32::MAX` as its start, so an
-    /// arena that reaches that bound cannot be represented. Fail loudly here
-    /// instead of truncating the offsets: a wrapped span would make [`Self::get`]
-    /// slice unrelated text, or panic far from the actual cause.
-    #[inline]
-    fn of(arena: &str, s: &str) -> Self {
-        let start = u32::try_from(arena.len()).expect("index text arena exceeded the 4 GiB span limit");
-        let len = u32::try_from(s.len()).expect("index text span exceeded the 4 GiB span limit");
-        assert!(
-            start != u32::MAX && start.checked_add(len).is_some(),
-            "index text arena exceeded the 4 GiB span limit"
-        );
-        Self { start, len }
-    }
-
-    #[inline]
-    pub(crate) fn get(self, arena: &str) -> &str {
-        &arena[self.start as usize..(self.start + self.len) as usize]
-    }
-}
-
 /// Persisted per-file record (postcard in redb, keyed by the relative path).
 #[derive(Clone, Debug, Default, Serialize, Deserialize)]
 pub(crate) struct FileRecord {
@@ -108,12 +52,12 @@ pub(crate) struct StoredSymbol {
    pub range: Range,
 }

-/// A symbol resolved out of [`SymTable`].
-pub(crate) struct SymRef<'a> {
-    pub name: &'a str,
+pub(crate) struct Sym {
+    pub name: Box<str>,
    pub kind: SymbolKind,
-    pub container: Option<&'a str>,
+    pub container: Option<Box<str>>,
    pub range: Range,
+    pub mask: u64,
 }

 pub(crate) struct FileEntry {
@@ -129,34 +73,38 @@ pub(crate) struct FileEntry {
    pub mtime: u64,
    pub size: u64,
    pub hash: [u8; 32],
-    /// Range of this file's symbols in [`IndexData::syms`].
-    pub sym_start: u32,
-    pub sym_len: u32,
+    pub symbols: Box<[Sym]>,
    pub ignored: bool,
 }

 impl FileEntry {
-    /// Splits the record into the entry and its symbols; the symbols are flattened into
-    /// the index-wide [`SymTable`] by [`IndexData::insert`].
-    pub(crate) fn new(path: PathBuf, rel: String, record: FileRecord) -> (Self, Vec<StoredSymbol>) {
+    pub(crate) fn new(path: PathBuf, rel: String, record: FileRecord) -> Self {
        let name_start = rel.rfind('/').map_or(0, |i| i + 1);
        let name = &rel[name_start..];
-        let FileRecord { mtime, size, hash, symbols, ignored } = record;
-        let entry = Self {
+        let symbols = record
+            .symbols
+            .into_iter()
+            .map(|s| Sym {
+                mask: char_mask(&s.name),
+                name: s.name.into_boxed_str(),
+                kind: s.kind,
+                container: s.container.map(String::into_boxed_str),
+                range: s.range,
+            })
+            .collect();
+        Self {
            name_start_chars: rel[..name_start].chars().count() as u32,
            name_mask: char_mask(name),
            rel_mask: char_mask(&rel),
            name_start: name_start as u32,
            path,
            rel: rel.into_boxed_str(),
-            mtime,
-            size,
-            hash,
-            sym_start: 0,
-            sym_len: 0,
-            ignored,
-        };
-        (entry, symbols)
+            mtime: record.mtime,
+            size: record.size,
+            hash: record.hash,
+            symbols,
+            ignored: record.ignored,
+        }
    }

    pub(crate) fn name(&self) -> &str {
@@ -167,391 +115,38 @@ impl FileEntry {
        &self.rel[..self.name_start as usize]
    }

+    pub(crate) fn record(&self) -> FileRecord {
+        FileRecord {
+            mtime: self.mtime,
+            size: self.size,
+            hash: self.hash,
+            symbols: self
+                .symbols
+                .iter()
+                .map(|s| StoredSymbol {
+                    name: s.name.to_string(),
+                    kind: s.kind,
+                    container: s.container.as_deref().map(str::to_owned),
+                    range: s.range,
+                })
+                .collect(),
+            ignored: self.ignored,
+        }
+    }
+
    /// Whether the entry is out of date for `found` on disk.
    pub(crate) fn stale_for(&self, found: &crate::filter::Found) -> bool {
        self.mtime != found.mtime || self.size != found.size || self.ignored != found.ignored
    }
 }

-/// The hot fields of one file slot, packed for the query scan; no pointers.
-pub(crate) struct FileRow {
-    /// `rel` in [`HotFiles`]' arena.
-    pub rel: Span,
-    /// Byte offset of the file name inside `rel`.
-    pub name_start: u32,
-    pub sym_start: u32,
-    pub sym_len: u32,
-    /// Union of every symbol's [`char_mask`]: a selective symbol query can skip
-    /// the whole file before touching its symbol range.
-    pub sym_mask: u64,
-    pub rel_mask: u64,
-    pub name_mask: u64,
-    /// Mask of the directory part (`rel[..name_start]`), precomputed for path queries.
-    pub dir_mask: u64,
-    /// `rel` is pure ASCII, so nucleo can match it without a UTF-32 conversion.
-    pub ascii: bool,
-    /// The slot holds a file; free slots keep a row so scans line up with `IndexData::files`.
-    pub live: bool,
-}
-
-impl FileRow {
-    #[inline]
-    pub(crate) fn rel<'a>(&self, arena: &'a str) -> &'a str {
-        self.rel.get(arena)
-    }
-
-    #[inline]
-    pub(crate) fn name<'a>(&self, arena: &'a str) -> &'a str {
-        &self.rel.get(arena)[self.name_start as usize..]
-    }
-
-    #[inline]
-    pub(crate) fn dir<'a>(&self, arena: &'a str) -> &'a str {
-        &self.rel.get(arena)[..self.name_start as usize]
-    }
-}
-
-/// One dense row per file slot (same order and length as `IndexData::files`) plus the
-/// text arena the rows point into.
-#[derive(Default)]
-pub(crate) struct HotFiles {
-    pub rows: Vec<FileRow>,
-    text: String,
-    dead_text: usize,
-}
-
-impl HotFiles {
-    #[inline]
-    pub(crate) fn text(&self) -> &str {
-        &self.text
-    }
-
-    #[inline]
-    pub(crate) fn row(&self, slot: usize) -> Option<&FileRow> {
-        self.rows.get(slot).filter(|row| row.live)
-    }
-
-    #[inline]
-    pub(crate) fn row_of_slot(&self, slot: u32) -> Option<&FileRow> {
-        self.row(slot as usize)
-    }
-
-    /// `rel` of a live slot; candidate slots always are.
-    #[inline]
-    pub(crate) fn rel(&self, slot: u32) -> &str {
-        self.rows[slot as usize].rel(&self.text)
-    }
-
-    fn set(&mut self, slot: u32, row: FileRow) {
-        if self.rows.len() as u32 == slot {
-            self.rows.push(row);
-        } else {
-            self.rows[slot as usize] = row;
-        }
-    }
-
-    fn append(&mut self, rel: &str) -> Span {
-        let span = Span::of(&self.text, rel);
-        self.text.push_str(rel);
-        span
-    }
-
-    /// Updates the row of an existing slot (replace) in place.
-    fn update(&mut self, slot: u32, e: &FileEntry, sym_mask: u64) {
-        let idx = slot as usize;
-        if self.rows[idx].rel.get(&self.text) != &*e.rel {
-            self.dead_text += self.rows[idx].rel.len as usize;
-            let span = self.append(&e.rel);
-            self.rows[idx].rel = span;
-            self.rows[idx].ascii = e.rel.is_ascii();
-            self.rows[idx].dir_mask = char_mask(e.dir());
-        }
-        let row = &mut self.rows[idx];
-        row.name_start = e.name_start;
-        row.name_mask = e.name_mask;
-        row.rel_mask = e.rel_mask;
-        row.sym_start = e.sym_start;
-        row.sym_len = e.sym_len;
-        row.sym_mask = sym_mask;
-        row.live = true;
-    }
-
-    fn remove(&mut self, slot: u32) {
-        let row = &mut self.rows[slot as usize];
-        self.dead_text += row.rel.len as usize;
-        row.rel = Span::NONE;
-        row.sym_start = 0;
-        row.sym_len = 0;
-        row.sym_mask = 0;
-        row.live = false;
-    }
-
-    fn compact(&mut self) {
-        let mut text = String::with_capacity(self.text.len() - self.dead_text);
-        for row in &mut self.rows {
-            if !row.live {
-                continue;
-            }
-            let rel = row.rel.get(&self.text);
-            row.rel = Span::of(&text, rel);
-            text.push_str(rel);
-        }
-        self.text = text;
-        self.dead_text = 0;
-    }
-
-    fn shrink(&mut self) {
-        self.compact();
-        self.rows.shrink_to_fit();
-        self.text.shrink_to_fit();
-    }
-}
-
-/// One folder holding indexed files, packed for the query scan.
-pub(crate) struct DirRow {
-    /// `rel` in [`HotDirs`]' arena, including the trailing `/`.
-    pub rel: Span,
-    /// Byte offset of the last path segment inside the trimmed `rel`.
-    pub name_start: u32,
-    pub name_mask: u64,
-    /// Mask of `rel` without the trailing `/`.
-    pub rel_mask: u64,
-    pub path: PathBuf,
-}
-
-impl DirRow {
-    #[inline]
-    pub(crate) fn rel<'a>(&self, arena: &'a str) -> &'a str {
-        self.rel.get(arena)
-    }
-}
-
-#[derive(Default)]
-pub(crate) struct HotDirs {
-    pub rows: Vec<DirRow>,
-    text: String,
-    dead: usize,
-}
-
-impl HotDirs {
-    #[inline]
-    pub(crate) fn text(&self) -> &str {
-        &self.text
-    }
-
-    fn push(&mut self, rel: &str, abs: &Path) -> u32 {
-        let span = Span::of(&self.text, rel);
-        self.text.push_str(rel);
-        let trimmed = &rel[..rel.len() - 1];
-        let name_start = trimmed.rfind('/').map_or(0, |i| i + 1);
-        self.rows.push(DirRow {
-            rel: span,
-            name_start: name_start as u32,
-            name_mask: char_mask(&trimmed[name_start..]),
-            rel_mask: char_mask(trimmed),
-            path: abs.to_owned(),
-        });
-        (self.rows.len() - 1) as u32
-    }
-
-    fn remove(&mut self, row: u32, dirs: &mut HashMap<Box<str>, (PathBuf, u32, u32)>) {
-        let idx = row as usize;
-        let last = self.rows.len() - 1;
-        self.dead += self.rows[idx].rel.len as usize;
-        self.rows.swap_remove(idx);
-        if idx != last {
-            let moved = self.rows[idx].rel.get(&self.text);
-            if let Some(dir) = dirs.get_mut(moved) {
-                dir.2 = idx as u32;
-            }
-        }
-    }
-
-    fn compact(&mut self) {
-        let mut text = String::with_capacity(self.text.len() - self.dead);
-        for row in &mut self.rows {
-            let rel = row.rel.get(&self.text);
-            row.rel = Span::of(&text, rel);
-            text.push_str(rel);
-        }
-        self.text = text;
-        self.dead = 0;
-    }
-
-    fn shrink(&mut self) {
-        self.compact();
-        self.rows.shrink_to_fit();
-        self.text.shrink_to_fit();
-    }
-}
-
-/// The scan-relevant fields of one symbol: its character mask and the name in the
-/// arena. Interleaved so a scan touches one cache line per candidate instead of three
-/// parallel arrays.
-#[derive(Clone, Copy)]
-pub(crate) struct SymHead {
-    pub mask: u64,
-    pub name: Span,
-}
-
-/// Index-wide symbol storage: one row per symbol in parallel arrays, with names and
-/// containers interned in a single arena. Each file points at a contiguous range.
-#[derive(Default)]
-pub(crate) struct SymTable {
-    head: Vec<SymHead>,
-    container: Vec<Span>,
-    kind: Vec<SymbolKind>,
-    range: Vec<Range>,
-    text: String,
-    dead_rows: usize,
-}
-
-impl SymTable {
-    #[inline]
-    pub(crate) fn name(&self, i: u32) -> &str {
-        self.head[i as usize].name.get(&self.text)
-    }
-
-    #[inline]
-    pub(crate) fn mask(&self, i: u32) -> u64 {
-        self.head[i as usize].mask
-    }
-
-    #[inline]
-    pub(crate) fn container(&self, i: u32) -> Option<&str> {
-        let span = self.container[i as usize];
-        (span.start != u32::MAX).then(|| span.get(&self.text))
-    }
-
-    /// The mask + name rows of a file's contiguous symbol range.
-    #[inline]
-    pub(crate) fn heads(&self, start: u32, len: u32) -> &[SymHead] {
-        let (start, end) = (start as usize, start as usize + len as usize);
-        &self.head[start..end]
-    }
-
-    #[inline]
-    pub(crate) fn kind(&self, i: u32) -> SymbolKind {
-        self.kind[i as usize]
-    }
-
-    #[inline]
-    pub(crate) fn range(&self, i: u32) -> Range {
-        self.range[i as usize]
-    }
-
-    fn intern(&mut self, s: &str) -> Span {
-        let span = Span::of(&self.text, s);
-        self.text.push_str(s);
-        span
-    }
-
-    /// Appends a file's symbols; they stay contiguous. Returns the start index
-    /// and the union of their masks.
-    fn push(&mut self, symbols: &[StoredSymbol]) -> (u32, u64) {
-        let start = self.head.len() as u32;
-        let mut agg_mask = 0u64;
-        for s in symbols {
-            let mask = char_mask(&s.name);
-            agg_mask |= mask;
-            let name = self.intern(&s.name);
-            let container = match &s.container {
-                Some(c) => self.intern(c),
-                None => Span::NONE,
-            };
-            self.head.push(SymHead { mask, name });
-            self.container.push(container);
-            self.kind.push(s.kind);
-            self.range.push(s.range);
-        }
-        (start, agg_mask)
-    }
-
-    /// Whether `symbols` would flatten to exactly the range at `start`.
-    fn same(&self, start: u32, len: u32, symbols: &[StoredSymbol]) -> bool {
-        len as usize == symbols.len()
-            && symbols.iter().enumerate().all(|(k, s)| {
-                let i = start + k as u32;
-                self.name(i) == s.name
-                    && self.container(i) == s.container.as_deref()
-                    && self.kind(i) == s.kind
-                    && self.range(i) == s.range
-            })
-    }
-
-    fn free(&mut self, _start: u32, len: u32) {
-        self.dead_rows += len as usize;
-    }
-
-    /// Rewrites the live rows in file order, reclaiming the space of replaced files.
-    /// `files` entries keep their range in sync; queries read rows, but persistence
-    /// and `FileEntry` accessors go through the entry.
-    fn compact(&mut self, rows: &mut [FileRow], files: &mut [Option<FileEntry>]) {
-        let mut text = String::with_capacity(self.text.len());
-        let mut head = Vec::with_capacity(self.head.len() - self.dead_rows);
-        let mut container = Vec::with_capacity(head.capacity());
-        let mut kind = Vec::with_capacity(head.capacity());
-        let mut range = Vec::with_capacity(head.capacity());
-        let mut live = 0u32;
-        for (slot, row) in rows.iter_mut().enumerate() {
-            if !row.live {
-                row.sym_start = 0;
-                continue;
-            }
-            let (start, end) = (row.sym_start, row.sym_start + row.sym_len);
-            row.sym_start = live;
-            if let Some(e) = files.get_mut(slot).and_then(Option::as_mut) {
-                e.sym_start = live;
-            }
-            for i in start..end {
-                let name_span = self.head[i as usize].name;
-                let name = name_span.get(&self.text);
-                head.push(SymHead { mask: self.head[i as usize].mask, name: Span::of(&text, name) });
-                text.push_str(name);
-                let container_span = self.container[i as usize];
-                if container_span.start == u32::MAX {
-                    container.push(Span::NONE);
-                } else {
-                    let c = container_span.get(&self.text);
-                    container.push(Span::of(&text, c));
-                    text.push_str(c);
-                }
-                kind.push(self.kind[i as usize]);
-                range.push(self.range[i as usize]);
-                live += 1;
-            }
-        }
-        self.head = head;
-        self.container = container;
-        self.kind = kind;
-        self.range = range;
-        self.text = text;
-        self.dead_rows = 0;
-    }
-
-    fn shrink(&mut self) {
-        self.head.shrink_to_fit();
-        self.container.shrink_to_fit();
-        self.kind.shrink_to_fit();
-        self.range.shrink_to_fit();
-        self.text.shrink_to_fit();
-    }
-}
-
 #[derive(Default)]
 pub(crate) struct IndexData {
    pub files: Vec<Option<FileEntry>>,
    by_path: HashMap<PathBuf, u32>,
    /// Every folder holding an indexed file at any depth, keyed by its `rel` with a
-    /// trailing `/`: its absolute path, the number of files below it, and its row in
-    /// [`HotDirs`].
-    pub dirs: HashMap<Box<str>, (PathBuf, u32, u32)>,
-    /// Compact query-time view of `files`, kept in sync by `insert`/`remove`.
-    pub hot: HotFiles,
-    /// Compact query-time view of `dirs`, kept in sync by `insert`/`remove`.
-    pub dirs_hot: HotDirs,
-    /// Flattened symbols of every file, kept in sync by `insert`/`remove`.
-    pub syms: SymTable,
+    /// trailing `/`: its absolute path and the number of files below it.
+    pub dirs: HashMap<Box<str>, (PathBuf, u32)>,
    free: Vec<u32>,
    pub file_count: u32,
    pub symbol_count: u32,
@@ -566,185 +161,49 @@ impl IndexData {
        self.by_path.get(path).copied()
    }

-    /// Reserves the flat tables for a bulk warm-start hydration.
-    pub(crate) fn reserve(&mut self, files: usize, symbols: usize, dirs: usize) {
-        self.files.reserve(files);
-        self.by_path.reserve(files);
-        self.dirs.reserve(dirs);
-        self.hot.rows.reserve(files);
-        self.dirs_hot.rows.reserve(dirs);
-        self.syms.head.reserve(symbols);
-        self.syms.container.reserve(symbols);
-        self.syms.kind.reserve(symbols);
-        self.syms.range.reserve(symbols);
-    }
-
-    /// Hydrates a validated warm-start snapshot in one pass, without per-file
-    /// duplicate checks, ancestor walks or compaction checks.
-    pub(crate) fn load_bulk(
-        &mut self,
-        entries: Vec<(FileEntry, Vec<StoredSymbol>)>,
-        dirs: Vec<(Box<str>, PathBuf, u32)>,
-    ) {
-        self.files = Vec::with_capacity(entries.len());
-        self.by_path = HashMap::with_capacity(entries.len());
-        self.hot = HotFiles::default();
-        self.dirs_hot = HotDirs::default();
-        self.syms = SymTable::default();
-        self.dirs = HashMap::with_capacity(dirs.len());
-        let symbols: usize = entries.iter().map(|(_, symbols)| symbols.len()).sum();
-        self.reserve(entries.len(), symbols, dirs.len());
-        self.symbol_count = 0;
-        for (slot, (mut entry, symbols)) in entries.into_iter().enumerate() {
-            let (sym_start, sym_mask) = self.syms.push(&symbols);
-            entry.sym_start = sym_start;
-            entry.sym_len = symbols.len() as u32;
-            self.symbol_count += entry.sym_len;
-            let rel = self.hot.append(&entry.rel);
-            self.hot.set(
-                slot as u32,
-                FileRow {
-                    rel,
-                    name_start: entry.name_start,
-                    sym_start,
-                    sym_len: entry.sym_len,
-                    sym_mask,
-                    rel_mask: entry.rel_mask,
-                    name_mask: entry.name_mask,
-                    dir_mask: char_mask(entry.dir()),
-                    ascii: entry.rel.is_ascii(),
-                    live: true,
-                },
-            );
-            self.by_path.insert(entry.path.clone(), slot as u32);
-            self.files.push(Some(entry));
-        }
-        self.file_count = self.files.len() as u32;
-        for (rel, path, count) in dirs {
-            let row = self.dirs_hot.push(&rel, &path);
-            self.dirs.insert(rel, (path, count, row));
-        }
-        self.free.clear();
-    }
-
-    /// The persisted form of a file, rebuilt from [`IndexData::syms`].
-    pub(crate) fn record(&self, e: &FileEntry) -> FileRecord {
-        FileRecord {
-            mtime: e.mtime,
-            size: e.size,
-            hash: e.hash,
-            symbols: self
-                .symbols_of(e)
-                .map(|s| StoredSymbol {
-                    name: s.name.to_owned(),
-                    kind: s.kind,
-                    container: s.container.map(str::to_owned),
-                    range: s.range,
-                })
-                .collect(),
-            ignored: e.ignored,
-        }
-    }
-
-    pub(crate) fn record_of(&self, path: &Path) -> Option<FileRecord> {
-        self.get(path).map(|e| self.record(e))
-    }
-
-    /// The symbols of one file, in declaration order.
-    pub(crate) fn symbols_of<'a>(&'a self, e: &'a FileEntry) -> impl Iterator<Item = SymRef<'a>> + 'a {
-        let syms = &self.syms;
-        (e.sym_start..e.sym_start + e.sym_len).map(move |i| SymRef {
-            name: syms.name(i),
-            kind: syms.kind(i),
-            container: syms.container(i),
-            range: syms.range(i),
-        })
-    }
-
-    pub(crate) fn insert(&mut self, mut entry: FileEntry, symbols: Vec<StoredSymbol>) {
-        let sym_len = symbols.len() as u32;
+    pub(crate) fn insert(&mut self, entry: FileEntry) {
+        let symbols = entry.symbols.len() as u32;
        if let Some(&slot) = self.by_path.get(&entry.path) {
-            let old = self.files[slot as usize].as_ref().expect("indexed slots are live");
-            let old_len = old.sym_len;
-            // Rescans and saves that re-parse to the same symbols reuse the range; a
-            // same-path replacement then costs nothing in the symbol table.
-            let (sym_start, sym_mask) = if self.syms.same(old.sym_start, old_len, &symbols) {
-                (old.sym_start, self.hot.rows[slot as usize].sym_mask)
-            } else {
-                self.syms.free(old.sym_start, old_len);
-                self.syms.push(&symbols)
-            };
-            entry.sym_start = sym_start;
-            entry.sym_len = sym_len;
-            self.symbol_count = self.symbol_count - old_len + sym_len;
-            self.hot.update(slot, &entry, sym_mask);
-            self.files[slot as usize] = Some(entry);
-            self.compact_if_needed();
+            let old = self.files[slot as usize].replace(entry);
+            self.symbol_count -= old.map_or(0, |o| o.symbols.len() as u32);
+            self.symbol_count += symbols;
            return;
        }
-        let (sym_start, sym_mask) = self.syms.push(&symbols);
-        entry.sym_start = sym_start;
-        entry.sym_len = sym_len;
        let slot = match self.free.pop() {
-            Some(slot) => slot,
+            Some(slot) => {
+                self.files[slot as usize] = Some(entry);
+                slot
+            }
            None => {
-                self.files.push(None);
+                self.files.push(Some(entry));
                (self.files.len() - 1) as u32
            }
        };
-        let path = entry.path.clone();
-        let (name_start, name_mask, rel_mask) = (entry.name_start, entry.name_mask, entry.rel_mask);
-        let rel = self.hot.append(&entry.rel);
-        self.hot.set(
-            slot,
-            FileRow {
-                rel,
-                name_start,
-                sym_start: entry.sym_start,
-                sym_len,
-                sym_mask,
-                rel_mask,
-                name_mask,
-                dir_mask: char_mask(&entry.rel[..name_start as usize]),
-                ascii: entry.rel.is_ascii(),
-                live: true,
-            },
-        );
-        self.files[slot as usize] = Some(entry);
+        let path = self.files[slot as usize].as_ref().map(|e| e.path.clone()).unwrap_or_default();
        if let Some(e) = &self.files[slot as usize] {
            for (rel, abs) in ancestors(e) {
-                if let Some(dir) = self.dirs.get_mut(rel) {
-                    dir.1 += 1;
-                } else {
-                    let row = self.dirs_hot.push(rel, abs);
-                    self.dirs.insert(rel.into(), (abs.to_owned(), 1, row));
-                }
+                self.dirs.entry(rel.into()).or_insert_with(|| (abs.to_owned(), 0)).1 += 1;
            }
        }
        self.by_path.insert(path, slot);
        self.file_count += 1;
-        self.symbol_count += sym_len;
-        self.compact_if_needed();
+        self.symbol_count += symbols;
    }

    pub(crate) fn remove(&mut self, path: &Path) -> Option<FileEntry> {
        let slot = self.by_path.remove(path)?;
        let old = self.files[slot as usize].take()?;
        self.free.push(slot);
-        self.hot.remove(slot);
-        self.syms.free(old.sym_start, old.sym_len);
        for (rel, _) in ancestors(&old) {
-            let Some(dir) = self.dirs.get_mut(rel) else { continue };
-            dir.1 -= 1;
-            if dir.1 > 0 {
-                continue;
+            if let Some(d) = self.dirs.get_mut(rel) {
+                d.1 -= 1;
+                if d.1 == 0 {
+                    self.dirs.remove(rel);
+                }
            }
-            let Some((_, _, row)) = self.dirs.remove(rel) else { continue };
-            self.dirs_hot.remove(row, &mut self.dirs);
        }
        self.file_count -= 1;
-        self.symbol_count -= old.sym_len;
-        self.compact_if_needed();
+        self.symbol_count -= old.symbols.len() as u32;
        Some(old)
    }

@@ -754,19 +213,6 @@ impl IndexData {
        doomed.into_iter().filter(|p| self.remove(p).is_some()).collect()
    }

-    /// Reclaims the space of replaced/removed files once it dominates a table.
-    fn compact_if_needed(&mut self) {
-        if self.hot.dead_text > 1 << 16 && self.hot.dead_text * 2 > self.hot.text.len() {
-            self.hot.compact();
-        }
-        if self.syms.dead_rows > 4096 && self.syms.dead_rows * 2 > self.syms.head.len() {
-            self.syms.compact(&mut self.hot.rows, &mut self.files);
-        }
-        if self.dirs_hot.dead > 1 << 16 && self.dirs_hot.dead * 2 > self.dirs_hot.text.len() {
-            self.dirs_hot.compact();
-        }
-    }
-
    /// Releases spare capacity (after large deletions).
    pub(crate) fn shrink(&mut self) {
        while matches!(self.files.last(), Some(None)) {
@@ -775,11 +221,6 @@ impl IndexData {
            self.free.retain(|&s| s != last);
        }
        self.files.shrink_to_fit();
-        self.hot.rows.truncate(self.files.len());
-        self.hot.shrink();
-        self.dirs_hot.shrink();
-        self.syms.compact(&mut self.hot.rows, &mut self.files);
-        self.syms.shrink();
        self.free.shrink_to_fit();
        self.by_path.shrink_to_fit();
        self.dirs.shrink_to_fit();
@@ -807,7 +248,7 @@ fn ancestors(e: &FileEntry) -> impl Iterator<Item = (&str, &Path)> {
 mod tests {
    use super::*;

-    fn entry(path: &str, symbols: usize) -> (FileEntry, Vec<StoredSymbol>) {
+    fn entry(path: &str, symbols: usize) -> FileEntry {
        let record = FileRecord {
            symbols: (0..symbols)
                .map(|i| StoredSymbol {
@@ -822,118 +263,48 @@ mod tests {
        FileEntry::new(PathBuf::from("/r").join(path), path.to_owned(), record)
    }

-    fn insert(d: &mut IndexData, path: &str, symbols: usize) {
-        let (e, s) = entry(path, symbols);
-        d.insert(e, s);
-    }
-
-    /// The compact tables must always mirror the entries they were derived from.
-    fn assert_consistent(d: &IndexData) {
-        assert_eq!(d.hot.rows.len(), d.files.len(), "one hot row per slot");
-        assert_eq!(d.hot.rows.iter().filter(|r| r.live).count(), d.file_count as usize, "live rows are files");
-        for (slot, e) in d.files.iter().enumerate() {
-            let Some(e) = e else {
-                assert!(d.hot.row(slot).is_none(), "free slot {slot} has no row");
-                continue;
-            };
-            let row = d.hot.row(slot).unwrap_or_else(|| panic!("slot {slot} has a row"));
-            assert_eq!(row.rel(d.hot.text()), &*e.rel);
-            assert_eq!(row.name(d.hot.text()), e.name());
-            assert_eq!(row.dir(d.hot.text()), e.dir());
-            assert_eq!(row.name_mask, char_mask(e.name()));
-            assert_eq!(row.rel_mask, char_mask(&e.rel));
-            assert_eq!(row.dir_mask, char_mask(e.dir()));
-            assert_eq!(row.ascii, e.rel.is_ascii());
-            assert_eq!(row.sym_start, e.sym_start);
-            assert_eq!(row.sym_len, e.sym_len);
-            assert_eq!(row.sym_mask, d.symbols_of(e).fold(0u64, |m, s| m | char_mask(s.name)));
-            assert_eq!(d.syms.head.len(), d.syms.container.len());
-            assert_eq!(d.syms.head.len(), d.syms.kind.len());
-            assert_eq!(d.syms.head.len(), d.syms.range.len());
-            assert!(e.sym_len == 0 || (e.sym_start as usize) < d.syms.head.len());
-            assert!(e.sym_start + e.sym_len <= d.syms.head.len() as u32);
-        }
-        for (rel, (path, count, row)) in &d.dirs {
-            let row = &d.dirs_hot.rows[*row as usize];
-            assert_eq!(row.rel(d.dirs_hot.text()), &**rel);
-            assert_eq!(&row.path, path);
-            assert!(*count > 0);
-            let trimmed = &rel[..rel.len() - 1];
-            let name = &trimmed[row.name_start as usize..];
-            assert_eq!(row.name_mask, char_mask(name));
-            assert_eq!(row.rel_mask, char_mask(trimmed));
-        }
-        assert_eq!(d.dirs.len(), d.dirs_hot.rows.len());
-        assert_eq!(d.symbol_count, d.files.iter().flatten().map(|e| e.sym_len).sum::<u32>());
-    }
-
-    #[test]
-    fn bulk_load_matches_incremental_insert() {
-        let mut incremental = IndexData::default();
-        insert(&mut incremental, "a/b.rs", 2);
-        insert(&mut incremental, "c.rs", 1);
-        assert_consistent(&incremental);
-
-        let mut bulk = IndexData::default();
-        bulk.load_bulk(vec![entry("a/b.rs", 2), entry("c.rs", 1)], vec![("a/".into(), PathBuf::from("/r/a"), 1)]);
-        assert_consistent(&bulk);
-        assert_eq!((bulk.file_count, bulk.symbol_count), (2, 3));
-        assert_eq!(bulk.hot.text(), incremental.hot.text());
-        assert_eq!(bulk.files.len(), incremental.files.len());
-        assert_eq!(bulk.slot(Path::new("/r/a/b.rs")), incremental.slot(Path::new("/r/a/b.rs")));
-        assert_eq!(bulk.dirs["a/"].1, 1);
-    }
-
    #[test]
    fn dirs_follow_inserts_and_removals() {
        let mut d = IndexData::default();
-        insert(&mut d, "a/b/c.rs", 0);
-        insert(&mut d, "a/d.rs", 0);
-        insert(&mut d, "a/d.rs", 0);
-        insert(&mut d, "top.rs", 0);
+        d.insert(entry("a/b/c.rs", 0));
+        d.insert(entry("a/d.rs", 0));
+        d.insert(entry("a/d.rs", 0));
+        d.insert(entry("top.rs", 0));
        let mut dirs: Vec<_> = d.dirs.iter().map(|(k, v)| (k.to_string(), v.1)).collect();
        dirs.sort();
        assert_eq!(dirs, [("a/".into(), 2), ("a/b/".into(), 1)]);
        assert_eq!(d.dirs["a/b/"].0, PathBuf::from("/r/a/b"));
-        assert_consistent(&d);
        d.remove(Path::new("/r/a/b/c.rs"));
        assert!(!d.dirs.contains_key("a/b/"));
-        assert_consistent(&d);
        d.remove_tree(Path::new("/r/a"));
        assert!(d.dirs.is_empty());
-        assert_consistent(&d);
    }

    #[test]
    fn insert_replace_remove_keep_counts() {
        let mut d = IndexData::default();
-        insert(&mut d, "a/b.rs", 2);
-        insert(&mut d, "c.rs", 1);
+        d.insert(entry("a/b.rs", 2));
+        d.insert(entry("c.rs", 1));
        assert_eq!((d.file_count, d.symbol_count), (2, 3));
-        insert(&mut d, "a/b.rs", 5);
+        d.insert(entry("a/b.rs", 5));
        assert_eq!((d.file_count, d.symbol_count), (2, 6));
-        assert_consistent(&d);
        assert!(d.remove(Path::new("/r/c.rs")).is_some());
        assert_eq!((d.file_count, d.symbol_count), (1, 5));
-        assert_consistent(&d);
-        insert(&mut d, "d.rs", 0);
+        d.insert(entry("d.rs", 0));
        assert_eq!(d.files.len(), 2, "slot reused");
-        assert_consistent(&d);
        assert_eq!(d.remove_tree(Path::new("/r/a")), vec![PathBuf::from("/r/a/b.rs")]);
        assert_eq!((d.file_count, d.symbol_count), (1, 0));
        let e = d.get(Path::new("/r/d.rs")).unwrap();
        assert_eq!((e.name(), e.dir()), ("d.rs", ""));
-        insert(&mut d, "e.rs", 1);
-        insert(&mut d, "f.rs", 1);
+        d.insert(entry("e.rs", 1));
+        d.insert(entry("f.rs", 1));
        d.remove(Path::new("/r/e.rs"));
        d.remove(Path::new("/r/f.rs"));
        d.shrink();
-        assert_consistent(&d);
        assert_eq!(d.files.len(), 2, "trailing free slot dropped");
        assert_eq!(d.free, vec![0]);
-        insert(&mut d, "g.rs", 1);
+        d.insert(entry("g.rs", 1));
        assert_eq!((d.file_count, d.files.len()), (2, 2));
-        assert_consistent(&d);
    }

    #[test]
@@ -941,65 +312,4 @@ mod tests {
        assert_eq!(char_mask("ab") & char_mask("Bad"), char_mask("ab"));
        assert_ne!(char_mask("z") & char_mask("abc"), char_mask("z"));
    }
-
-    fn insert_symbols(d: &mut IndexData, path: &str, symbols: Vec<StoredSymbol>) {
-        let record = FileRecord { symbols, ..Default::default() };
-        let (e, s) = FileEntry::new(PathBuf::from("/r").join(path), path.to_owned(), record);
-        d.insert(e, s);
-    }
-
-    fn symbol(n: &str) -> StoredSymbol {
-        StoredSymbol { name: n.to_owned(), kind: SymbolKind::Function, container: None, range: Range::default() }
-    }
-
-    #[test]
-    fn compaction_keeps_entries_and_records_in_sync() {
-        let mut d = IndexData::default();
-        insert(&mut d, "a.rs", 3);
-        insert(&mut d, "b/c.rs", 2);
-        insert_symbols(&mut d, "a.rs", vec![symbol("fresh")]);
-        d.shrink();
-        assert_consistent(&d);
-        assert_eq!(d.syms.head.len() as u32, d.symbol_count, "compaction drops dead symbol rows");
-        let names = |d: &IndexData, p: &str| -> Vec<String> {
-            let e = d.get(Path::new(p)).unwrap();
-            d.record(e).symbols.into_iter().map(|s| s.name).collect()
-        };
-        assert_eq!(names(&d, "/r/a.rs"), ["fresh"]);
-        assert_eq!(names(&d, "/r/b/c.rs"), ["s0", "s1"]);
-        assert_eq!(d.symbol_count, 3);
-    }
-
-    #[test]
-    fn large_replacements_reclaim_symbol_storage() {
-        let mut d = IndexData::default();
-        insert_symbols(&mut d, "a.rs", (0..5_000).map(|i| symbol(&format!("old{i}"))).collect());
-        assert_eq!(d.syms.head.len(), 5_000);
-        insert_symbols(&mut d, "a.rs", vec![symbol("fresh")]);
-        assert_eq!(d.syms.head.len(), 1, "dead symbol rows are reclaimed");
-        assert_eq!((d.symbol_count, d.file_count), (1, 1));
-        assert_consistent(&d);
-    }
-
-    #[test]
-    fn tree_removal_leaves_no_hot_rows_or_dirs() {
-        let mut d = IndexData::default();
-        insert(&mut d, "a/b/one.rs", 2);
-        insert(&mut d, "a/b/two.rs", 3);
-        insert(&mut d, "a/three.rs", 1);
-        insert(&mut d, "elsewhere/four.rs", 1);
-        assert_eq!(d.remove_tree(Path::new("/r/a")).len(), 3);
-        assert_consistent(&d);
-        assert_eq!(d.hot.rows.iter().filter(|r| r.live).count(), 1);
-        assert!(d.hot.row(0).is_none(), "removed slots have no live row");
-        assert_eq!(d.dirs.len(), 1, "elsewhere/ only");
-        assert_eq!(d.dirs_hot.rows.len(), 1);
-        assert_eq!(d.symbol_count, 1);
-        d.shrink();
-        assert_eq!(d.syms.head.len() as u32, d.symbol_count);
-        // Slots are reusable and the new row replaces the tombstone.
-        insert(&mut d, "a/five.rs", 2);
-        assert_consistent(&d);
-        assert_eq!(d.file_count, 2);
-    }
 }
@@ -138,22 +138,6 @@ impl PathFilter {
        &self.config.0 == extra_roots && self.config.1 == excludes
    }

-    /// Stable fingerprint of the persisted-scope configuration; a start-up
-    /// snapshot is only trusted when this still matches.
-    pub(crate) fn stamp(&self) -> String {
-        let mut stamp = format!("include_root={}\n", self.config.0.include_root);
-        for folder in &self.config.0.folders {
-            stamp.push_str(&folder.to_string_lossy());
-            stamp.push('\n');
-        }
-        stamp.push_str("--\n");
-        for exclude in &self.config.1 {
-            stamp.push_str(exclude);
-            stamp.push('\n');
-        }
-        stamp
-    }
-
    pub(crate) fn reload(&self) -> Self {
        Self::new(&self.root, &self.config.0, &self.config.1)
    }
@@ -162,11 +146,6 @@ impl PathFilter {
        &self.root
    }

-    /// Whether content roots outside the project root are indexed with it.
-    pub(crate) fn has_extra_roots(&self) -> bool {
-        !self.extra.is_empty()
-    }
-
    /// The project root, then the extra content roots.
    pub(crate) fn roots(&self) -> impl Iterator<Item = &Path> {
        std::iter::once(self.root.as_path())
@@ -248,30 +227,6 @@ impl PathFilter {
        dir.is_some_and(|d| gitignore.matched_path_or_any_parents(d, true).is_ignore())
    }

-    /// All directories at or below `dir` that the index would walk, in walk order.
-    pub(crate) fn dirs(&self, dir: &Path) -> Vec<PathBuf> {
-        let Some((root, _, _)) = self.base_of(dir) else { return Vec::new() };
-        let root = root.to_path_buf();
-        let excludes = self.excludes.clone();
-        let walk_root = root.clone();
-        let walk_excludes = excludes.clone();
-        let walker = WalkBuilder::new(dir)
-            .hidden(false)
-            .parents(true)
-            .ignore(true)
-            .git_ignore(true)
-            .git_global(true)
-            .git_exclude(true)
-            .require_git(ide_core::ignored::inside_git_repo(dir))
-            .follow_links(false)
-            .filter_entry(move |e| {
-                let name = e.file_name().to_string_lossy();
-                !Self::skip_name(&name) && !glob_excluded(&walk_excludes, &walk_root, e.path())
-            })
-            .build();
-        walker.flatten().filter(|e| e.file_type().is_some_and(|t| t.is_dir())).map(|e| e.into_path()).collect()
-    }
-
    /// All indexable files at or below `dir`, walked in parallel.
    /// Stops early (returning what was found so far) once `cancel` is set.
    pub(crate) fn walk(&self, dir: &Path, cancel: &AtomicBool) -> Vec<Found> {
@@ -199,11 +199,12 @@ impl ProjectIndex {
            return None;
        }
        Some(
-            data.symbols_of(file)
+            file.symbols
+                .iter()
                .map(|s| ide_language::SymbolTag {
                    name: s.name.to_string(),
                    kind: s.kind,
-                    container: s.container.map(ToString::to_string),
+                    container: s.container.as_ref().map(ToString::to_string),
                    range: s.range,
                })
                .collect(),
@@ -230,7 +231,7 @@ impl ProjectIndex {
    pub fn find_files(&self, query: &str, limit: usize) -> Vec<FileMatch> {
        let recent = self.shared.recent.lock().clone();
        let d = self.shared.data.read();
-        matching::find_files(&d, &matching::Recents::new(&recent), query, limit)
+        matching::find_files(&d, &matching::Recents { paths: &recent }, query, limit)
    }

    /// All indexed files with this exact basename, for resolving printed source locations.
@@ -273,7 +274,7 @@ impl ProjectIndex {
    pub fn find_symbols(&self, query: &str, filter: SymbolFilter, limit: usize) -> Vec<SymbolMatch> {
        let recent = self.shared.recent.lock().clone();
        let d = self.shared.data.read();
-        matching::find_symbols(&d, &matching::Recents::new(&recent), query, filter, limit)
+        matching::find_symbols(&d, &matching::Recents { paths: &recent }, query, filter, limit)
    }

    /// Scoped symbol search with cooperative interruption, including lock waits.
@@ -302,7 +303,15 @@ impl ProjectIndex {
                break data;
            }
        };
-        matching::find_symbols_until(&data, &matching::Recents::new(&recent), query, filter, limit, include, stopped)
+        matching::find_symbols_until(
+            &data,
+            &matching::Recents { paths: &recent },
+            query,
+            filter,
+            limit,
+            include,
+            stopped,
+        )
    }

    /// Symbols named exactly `name` (of `kind`, if given): `.card` selectors for `class="card"`.
@@ -514,8 +523,7 @@ pub mod bench_support {
                    })
                    .collect();
                let record = FileRecord { symbols, ..Default::default() };
-                let (entry, symbols) = FileEntry::new(PathBuf::from("/bench").join(&rel), rel, record);
-                data.insert(entry, symbols);
+                data.insert(FileEntry::new(PathBuf::from("/bench").join(&rel), rel, record));
            }
            let recent = data.paths().take(MAX_RECENT).cloned().collect();
            Self { data, recent }
@@ -530,7 +538,7 @@ pub mod bench_support {
        }

        pub fn find_files(&self, query: &str, limit: usize) -> Vec<FileMatch> {
-            matching::find_files(&self.data, &matching::Recents::new(&self.recent), query, limit)
+            matching::find_files(&self.data, &matching::Recents { paths: &self.recent }, query, limit)
        }

        pub fn find_dirs(&self, query: &str, limit: usize) -> Vec<FileMatch> {
@@ -538,7 +546,7 @@ pub mod bench_support {
        }

        pub fn find_symbols(&self, query: &str, filter: SymbolFilter, limit: usize) -> Vec<SymbolMatch> {
-            matching::find_symbols(&self.data, &matching::Recents::new(&self.recent), query, filter, limit)
+            matching::find_symbols(&self.data, &matching::Recents { paths: &self.recent }, query, filter, limit)
        }
    }
 }
@@ -4,19 +4,14 @@
 //! (bit-mask pre-filter, nucleo score, exact/prefix boosts) and keeps the best
 //! few; the survivors then get match indices, CamelHump and recency boosts and
 //! are re-sorted.
-//!
-//! The scan streams the compact tables in `data` (`HotFiles`/`HotDirs`/`SymTable`):
-//! only the hot fields per candidate and strings from contiguous arenas, with the
-//! thread-local matcher and one UTF-32 buffer per scan rather than per candidate.

-use crate::data::{DirRow, FileEntry, FileRow, IndexData, SymTable, char_mask};
+use crate::data::{FileEntry, IndexData, char_mask};
 use crate::{FileMatch, SymbolFilter, SymbolMatch};
 use ide_core::SymbolKind;
 use nucleo_matcher::{Config, Matcher, Utf32Str, Utf32String};
 use rayon::prelude::*;
 use std::cell::RefCell;
 use std::cmp::Ordering;
-use std::collections::HashMap;
 use std::path::{Path, PathBuf};

 const TIER_NAME: u32 = 1 << 20;
@@ -59,11 +54,6 @@ impl Needle {
        m.fuzzy_match(Utf32Str::new(hay, buf), self.utf32.slice(..)).map(u32::from)
    }

-    /// `hay` is pure ASCII: skip `Utf32Str::new`'s check and UTF-32 conversion.
-    fn score_ascii(&self, m: &mut Matcher, hay: &str) -> Option<u32> {
-        m.fuzzy_match(Utf32Str::Ascii(hay.as_bytes()), self.utf32.slice(..)).map(u32::from)
-    }
-
    fn indices(&self, m: &mut Matcher, hay: &str, buf: &mut Vec<char>, out: &mut Vec<u32>) -> Option<u32> {
        out.clear();
        let s = m.fuzzy_indices(Utf32Str::new(hay, buf), self.utf32.slice(..), out).map(u32::from);
@@ -115,9 +105,6 @@ struct Cand {
    slot: u32,
    sym: u32,
    score: u32,
-    /// Candidate name/rel length: the first tie-break key, cached so ranking a pool
-    /// does not chase it through the tables.
-    len: u32,
 }

 fn keep_best(mut v: Vec<Cand>, k: usize, tiebreak: &impl Fn(&Cand, &Cand) -> Ordering) -> Vec<Cand> {
@@ -132,7 +119,7 @@ fn scan(
    data: &IndexData,
    pool: usize,
    tiebreak: &(impl Fn(&Cand, &Cand) -> Ordering + Sync),
-    per_file: impl Fn(u32, &FileRow, &mut Matcher, &mut Vec<Cand>) + Sync,
+    per_file: impl Fn(u32, &FileEntry, &mut Vec<Cand>) + Sync,
 ) -> Vec<Cand> {
    scan_until(data, pool, tiebreak, &|| false, per_file).unwrap_or_default()
 }
@@ -142,22 +129,18 @@ fn scan_until(
    pool: usize,
    tiebreak: &(impl Fn(&Cand, &Cand) -> Ordering + Sync),
    stopped: &(impl Fn() -> bool + Sync),
-    per_file: impl Fn(u32, &FileRow, &mut Matcher, &mut Vec<Cand>) + Sync,
+    per_file: impl Fn(u32, &FileEntry, &mut Vec<Cand>) + Sync,
 ) -> Option<Vec<Cand>> {
-    // One row per slot, so this is exactly the old scan over `files`: same item
-    // order and count, and free slots are skipped exactly like `None` was, keeping
-    // the pruning boundaries (and therefore the candidate pool) unchanged.
-    data.hot
-        .rows
+    data.files
        .par_iter()
        .enumerate()
        .with_min_len(256)
-        .try_fold(Vec::new, |mut acc, (slot, row)| {
+        .try_fold(Vec::new, |mut acc, (slot, e)| {
            if stopped() {
                return None;
            }
-            if row.live {
-                with_matcher(|m| per_file(slot as u32, row, m, &mut acc));
+            if let Some(e) = e {
+                per_file(slot as u32, e, &mut acc);
                if acc.len() >= pool * 2 {
                    acc = keep_best(acc, pool, tiebreak);
                }
@@ -172,22 +155,15 @@ fn scan_until(

 pub(crate) struct Recents<'a> {
    pub paths: &'a [PathBuf],
-    /// Position of each path, so ranking a survivor does not scan the list.
-    /// Duplicates keep their first position, like `position`.
-    ranks: HashMap<&'a Path, usize>,
 }

-impl<'a> Recents<'a> {
-    pub(crate) fn new(paths: &'a [PathBuf]) -> Self {
-        let mut ranks = HashMap::with_capacity(paths.len());
-        for (i, p) in paths.iter().enumerate() {
-            ranks.entry(p.as_path()).or_insert(i);
-        }
-        Self { paths, ranks }
+impl Recents<'_> {
+    fn rank(&self, path: &std::path::Path) -> Option<usize> {
+        self.paths.iter().position(|p| p == path)
    }

-    fn bonus(&self, path: &Path) -> u32 {
-        self.ranks.get(path).map_or(0, |&r| RECENT_MAX.saturating_sub(r as u32 * 12))
+    fn bonus(&self, path: &std::path::Path) -> u32 {
+        self.rank(path).map_or(0, |r| RECENT_MAX.saturating_sub(r as u32 * 12))
    }
 }

@@ -233,31 +209,29 @@ pub(crate) fn find_files(data: &IndexData, recents: &Recents, query: &str, limit
        Some((dir, name)) => FileQuery::Path { dir: Needle::new(dir), name: Needle::new(name) },
        None => FileQuery::Name(Needle::new(&q)),
    };
-    let tiebreak = |a: &Cand, b: &Cand| a.len.cmp(&b.len).then_with(|| data.hot.rel(a.slot).cmp(data.hot.rel(b.slot)));
+    let tiebreak = |a: &Cand, b: &Cand| {
+        let (ea, eb) = (file(data, a.slot), file(data, b.slot));
+        ea.rel.len().cmp(&eb.rel.len()).then_with(|| ea.rel.cmp(&eb.rel))
+    };
    let pool = limit * 4 + 64;
-    let mut cands = scan(data, pool, &tiebreak, |slot, row, m, acc| {
+    let mut cands = scan(data, pool, &tiebreak, |slot, e, acc| {
        let mut buf = Vec::new();
-        if let Some(score) = base_file_score(m, &fq, row, data.hot.text(), &mut buf) {
-            acc.push(Cand { slot, sym: u32::MAX, score, len: row.rel.len });
+        if let Some(score) = with_matcher(|m| base_file_score(m, &fq, e, &mut buf)) {
+            acc.push(Cand { slot, sym: u32::MAX, score });
        }
    });
    // Recent files always compete for the final ranking.
-    with_matcher(|m| {
-        let mut buf = Vec::new();
-        for p in recents.paths {
-            if data.get(p).is_none() {
-                continue;
-            }
+    for p in recents.paths {
+        if let Some(e) = data.get(p) {
            let Some(slot) = data.slot(p) else { continue };
-            if cands.iter().any(|c| c.slot == slot) {
-                continue;
-            }
-            let Some(row) = data.hot.row_of_slot(slot) else { continue };
-            if let Some(score) = base_file_score(m, &fq, row, data.hot.text(), &mut buf) {
-                cands.push(Cand { slot, sym: u32::MAX, score, len: row.rel.len });
+            if !cands.iter().any(|c| c.slot == slot) {
+                let mut buf = Vec::new();
+                if let Some(score) = with_matcher(|m| base_file_score(m, &fq, e, &mut buf)) {
+                    cands.push(Cand { slot, sym: u32::MAX, score });
+                }
            }
        }
-    });
+    }
    let mut out: Vec<(u32, &FileEntry, Vec<u32>)> = with_matcher(|m| {
        let mut buf = Vec::new();
        cands
@@ -299,46 +273,30 @@ pub(crate) fn find_dirs(data: &IndexData, query: &str, limit: usize) -> Vec<File
    }
    let by_path = q.contains('/');
    let needle = Needle::new(q.trim_end_matches('/'));
-    let text = data.dirs_hot.text();
    // (score, rel without the trailing `/`, char offset of the name when it matched by name)
-    let (mut best, _): (Vec<_>, Vec<char>) = data
-        .dirs_hot
-        .rows
+    let score = |m: &mut Matcher, buf: &mut Vec<char>, rel: &str| -> Option<(u32, Option<u32>)> {
+        let trimmed = &rel[..rel.len() - 1];
+        let start = trimmed.rfind('/').map_or(0, |i| i + 1);
+        let name = &trimmed[start..];
+        if !by_path
+            && needle.mask & char_mask(name) == needle.mask
+            && let Some(s) = needle.score(m, name, buf)
+        {
+            return Some((TIER_NAME + s * 4 + needle.name_boost(name), Some(trimmed[..start].chars().count() as u32)));
+        }
+        if needle.mask & char_mask(trimmed) != needle.mask {
+            return None;
+        }
+        needle.score(m, trimmed, buf).map(|s| (s, None))
+    };
+    let mut best: Vec<(u32, &str, &Path, Option<u32>)> = data
+        .dirs
        .par_iter()
-        .fold(
-            || (Vec::new(), Vec::new()),
-            |(mut found, mut buf), row: &DirRow| {
-                let rel = row.rel(text);
-                let trimmed = &rel[..rel.len() - 1];
-                let name = &trimmed[row.name_start as usize..];
-                with_matcher(|m| {
-                    let hit = if !by_path
-                        && needle.mask & row.name_mask == needle.mask
-                        && let Some(s) = needle.score(m, name, &mut buf)
-                    {
-                        Some((
-                            TIER_NAME + s * 4 + needle.name_boost(name),
-                            Some(trimmed[..row.name_start as usize].chars().count() as u32),
-                        ))
-                    } else if needle.mask & row.rel_mask != needle.mask {
-                        None
-                    } else {
-                        needle.score(m, trimmed, &mut buf).map(|s| (s, None))
-                    };
-                    if let Some((s, at)) = hit {
-                        found.push((s, rel, row.path.as_path(), at));
-                    }
-                });
-                (found, buf)
-            },
-        )
-        .reduce(
-            || (Vec::new(), Vec::new()),
-            |mut a, b| {
-                a.0.extend(b.0);
-                a
-            },
-        );
+        .filter_map(|(rel, (path, _))| {
+            let mut buf = Vec::new();
+            with_matcher(|m| score(m, &mut buf, rel)).map(|(s, at)| (s, &**rel, path.as_path(), at))
+        })
+        .collect();
    let order = |a: &(u32, &str, &Path, Option<u32>), b: &(u32, &str, &Path, Option<u32>)| {
        b.0.cmp(&a.0).then_with(|| a.1.len().cmp(&b.1.len())).then_with(|| a.1.cmp(b.1))
    };
@@ -380,39 +338,33 @@ fn file(data: &IndexData, slot: u32) -> &FileEntry {
    data.files[slot as usize].as_ref().expect("candidate slots are live")
 }

-fn base_file_score(m: &mut Matcher, q: &FileQuery, row: &FileRow, text: &str, buf: &mut Vec<char>) -> Option<u32> {
-    // Strings are sliced only once their mask passes, so a rejected row costs two masks.
+fn base_file_score(m: &mut Matcher, q: &FileQuery, e: &FileEntry, buf: &mut Vec<char>) -> Option<u32> {
    match q {
        FileQuery::Name(n) => {
-            if n.mask & row.name_mask == n.mask {
-                let name = row.name(text);
-                let s = if row.ascii { n.score_ascii(m, name) } else { n.score(m, name, buf) };
-                if let Some(s) = s {
-                    return Some(TIER_NAME + s * 4 + n.name_boost(name));
-                }
+            if n.mask & e.name_mask == n.mask
+                && let Some(s) = n.score(m, e.name(), buf)
+            {
+                return Some(TIER_NAME + s * 4 + n.name_boost(e.name()));
            }
-            if n.mask & row.rel_mask == n.mask {
-                let rel = row.rel(text);
-                return if row.ascii { n.score_ascii(m, rel) } else { n.score(m, rel, buf) };
+            if n.mask & e.rel_mask == n.mask {
+                return n.score(m, &e.rel, buf);
            }
            None
        }
-        FileQuery::Path { dir, name: n } => {
-            let name_score = if n.is_empty() {
+        FileQuery::Path { dir, name } => {
+            let name_score = if name.is_empty() {
                0
            } else {
-                if n.mask & row.name_mask != n.mask {
+                if name.mask & e.name_mask != name.mask {
                    return None;
                }
-                let name = row.name(text);
-                let s = if row.ascii { n.score_ascii(m, name) } else { n.score(m, name, buf) }?;
-                s * 4 + n.name_boost(name)
+                name.score(m, e.name(), buf)? * 4 + name.name_boost(e.name())
            };
-            if dir.mask & row.dir_mask != dir.mask {
+            let dir_str = e.dir();
+            if dir.mask & char_mask(dir_str) != dir.mask {
                return None;
            }
-            let dir_str = row.dir(text);
-            let dir_score = if row.ascii { dir.score_ascii(m, dir_str) } else { dir.score(m, dir_str, buf) }?;
+            let dir_score = dir.score(m, dir_str, buf)?;
            Some(TIER_NAME + name_score + dir_score)
        }
    }
@@ -444,21 +396,22 @@ fn symbol_score(
    m: &mut Matcher,
    name: &Needle,
    container: Option<&Needle>,
-    syms: &SymTable,
-    i: u32,
+    s: &crate::data::Sym,
    buf: &mut Vec<char>,
 ) -> Option<u32> {
-    let symbol = syms.name(i);
-    let mut score = if name.is_empty() { 0 } else { name.score(m, symbol, buf)? * 4 };
-    score += name.name_boost(symbol);
+    if name.mask & s.mask != name.mask {
+        return None;
+    }
+    let mut score = if name.is_empty() { 0 } else { name.score(m, &s.name, buf)? * 4 };
+    score += name.name_boost(&s.name);
    if let Some(cq) = container {
-        let c = syms.container(i)?;
+        let c = s.container.as_deref()?;
        if cq.mask & char_mask(c) != cq.mask {
            return None;
        }
        score += cq.score(m, c, buf)? + cq.name_boost(c) / 4;
    }
-    if syms.kind(i).is_type_like() {
+    if s.kind.is_type_like() {
        score += TYPE_LIKE;
    }
    Some(score)
@@ -502,35 +455,30 @@ pub(crate) fn find_symbols_until(
    let (container_q, name_q) = split_symbol_query(&q);
    let name = Needle::new(name_q);
    let container = container_q.map(Needle::new);
-    let syms = &data.syms;
-    let tiebreak = |a: &Cand, b: &Cand| a.len.cmp(&b.len).then_with(|| data.hot.rel(a.slot).cmp(data.hot.rel(b.slot)));
+    let sym = |c: &Cand| &file(data, c.slot).symbols[c.sym as usize];
+    let tiebreak = |a: &Cand, b: &Cand| {
+        let (sa, sb) = (sym(a), sym(b));
+        sa.name.len().cmp(&sb.name.len()).then_with(|| file(data, a.slot).rel.cmp(&file(data, b.slot).rel))
+    };
    let pool = limit * 4 + 64;
-    let cands = scan_until(data, pool, &tiebreak, stopped, |slot, row, m, acc| {
-        // Whole-file pre-filter: when the union of the file's symbol masks
-        // already misses a query character, no symbol can match.
-        if row.sym_len == 0 || name.mask & row.sym_mask != name.mask {
+    let cands = scan_until(data, pool, &tiebreak, stopped, |slot, e, acc| {
+        if e.symbols.is_empty() || !include(&e.path) {
            return;
        }
-        let e = file(data, slot);
-        if !include(&e.path) {
-            return;
-        }
-        let mut buf = Vec::new();
-        for (k, head) in syms.heads(row.sym_start, row.sym_len).iter().enumerate() {
-            if stopped() {
-                break;
+        with_matcher(|m| {
+            let mut buf = Vec::new();
+            for (i, s) in e.symbols.iter().enumerate() {
+                if stopped() {
+                    break;
+                }
+                if filter == SymbolFilter::Types && !s.kind.is_type_like() {
+                    continue;
+                }
+                if let Some(score) = symbol_score(m, &name, container.as_ref(), s, &mut buf) {
+                    acc.push(Cand { slot, sym: i as u32, score });
+                }
            }
-            if filter == SymbolFilter::Types && !syms.kind(row.sym_start + k as u32).is_type_like() {
-                continue;
-            }
-            if name.mask & head.mask != name.mask {
-                continue;
-            }
-            let i = row.sym_start + k as u32;
-            if let Some(score) = symbol_score(m, &name, container.as_ref(), syms, i, &mut buf) {
-                acc.push(Cand { slot, sym: i, score, len: head.name.len });
-            }
-        }
+        });
    })?;
    if stopped() {
        return None;
@@ -541,32 +489,33 @@ pub(crate) fn find_symbols_until(
            .into_iter()
            .take_while(|_| !stopped())
            .filter_map(|c| {
-                let symbol = syms.name(c.sym);
+                let s = sym(&c);
                let e = file(data, c.slot);
                let mut idx = Vec::new();
                if !name.is_empty() {
-                    name.indices(m, symbol, &mut buf, &mut idx)?;
+                    name.indices(m, &s.name, &mut buf, &mut idx)?;
                }
-                let bonus = hump_bonus(symbol, &idx) + recents.bonus(&e.path) / 4;
+                let bonus = hump_bonus(&s.name, &idx) + recents.bonus(&e.path) / 4;
                Some((c.score + bonus, c, idx))
            })
            .collect()
    });
    out.sort_by(|a, b| {
-        b.0.cmp(&a.0).then_with(|| tiebreak(&a.1, &b.1)).then_with(|| syms.range(a.1.sym).cmp(&syms.range(b.1.sym)))
+        b.0.cmp(&a.0).then_with(|| tiebreak(&a.1, &b.1)).then_with(|| sym(&a.1).range.cmp(&sym(&b.1).range))
    });
    out.truncate(limit);
    let results = out
        .into_iter()
        .map(|(score, c, indices)| {
            let e = file(data, c.slot);
+            let s = &e.symbols[c.sym as usize];
            SymbolMatch {
-                name: syms.name(c.sym).to_string(),
-                kind: syms.kind(c.sym),
-                container: syms.container(c.sym).map(str::to_owned),
+                name: s.name.to_string(),
+                kind: s.kind,
+                container: s.container.as_deref().map(str::to_owned),
                path: e.path.clone().into(),
                rel_path: e.rel.to_string(),
-                range: syms.range(c.sym),
+                range: s.range,
                score,
                indices,
            }
@@ -592,25 +541,24 @@ pub(crate) fn symbols_named_within(
 ) -> Vec<SymbolMatch> {
    let mask = char_mask(name);
    let within = |e: &FileEntry| roots.is_empty() || roots.iter().any(|root| e.path.starts_with(root));
-    let syms = &data.syms;
    let mut out: Vec<SymbolMatch> = data
        .files
        .iter()
        .flatten()
        .filter(|e| within(e))
        .flat_map(|e| {
-            (e.sym_start..e.sym_start + e.sym_len)
-                .filter(|&i| syms.mask(i) == mask && syms.name(i) == name && kind.is_none_or(|k| syms.kind(i) == k))
-                .map(move |i| SymbolMatch {
-                    name: syms.name(i).to_string(),
-                    kind: syms.kind(i),
-                    container: syms.container(i).map(str::to_owned),
+            e.symbols.iter().filter(|s| s.mask == mask && &*s.name == name && kind.is_none_or(|k| s.kind == k)).map(
+                move |s| SymbolMatch {
+                    name: s.name.to_string(),
+                    kind: s.kind,
+                    container: s.container.as_deref().map(str::to_owned),
                    path: e.path.clone().into(),
                    rel_path: e.rel.to_string(),
-                    range: syms.range(i),
+                    range: s.range,
                    score: 0,
                    indices: Vec::new(),
-                })
+                },
+            )
        })
        .collect();
    out.sort_by(|a, b| a.rel_path.cmp(&b.rel_path).then_with(|| a.range.cmp(&b.range)));
@@ -1,408 +1,75 @@
 //! Persistence of file records in redb, so a restart only re-parses changed files.

-use crate::data::{FileEntry, FileRecord, IndexData, StoredSymbol};
-use crate::filter::{PathFilter, mtime_of};
-use ide_core::{Range, SymbolKind};
+use crate::data::FileRecord;
 use parking_lot::RwLock;
 use redb::{Database, Durability, ReadableDatabase, ReadableTable, TableDefinition, TableError};
-use serde::{Deserialize, Serialize};
 use std::path::Path;
-use std::time::{SystemTime, UNIX_EPOCH};

 const FILES: TableDefinition<&str, &[u8]> = TableDefinition::new("files");
 const META: TableDefinition<&str, &[u8]> = TableDefinition::new("meta");
 /// Bump when [`FileRecord`] or its encoding changes.
 const SCHEMA: &str = "openidea-index-3";

-/// The real Git directory for a checkout/worktree (`root/.git` may be a file
-/// containing `gitdir: ...`).
-fn git_dir(root: &Path) -> Option<std::path::PathBuf> {
-    let dot_git = root.join(".git");
-    if dot_git.is_dir() {
-        return Some(dot_git);
-    }
-    let text = std::fs::read_to_string(&dot_git).ok()?;
-    let target = text.strip_prefix("gitdir:")?.trim();
-    let path = Path::new(target);
-    Some(if path.is_absolute() { path.to_owned() } else { root.join(path) })
-}
-
-/// External ignore/config inputs, including candidates that do not exist yet.
-/// These are outside the directory manifest (`.git` is skipped), so the full
-/// path set must match at warm start.
-pub(crate) fn external_ignore_candidates(root: &Path) -> Vec<std::path::PathBuf> {
-    let mut out = std::collections::BTreeSet::new();
-    if let Some(git) = git_dir(root) {
-        out.insert(git.join("config"));
-        out.insert(git.join("info/exclude"));
-    }
-    out.insert(root.join(".git/config"));
-    out.insert(root.join(".git/info/exclude"));
-    if let Some(path) = ignore::gitignore::gitconfig_excludes_path() {
-        out.insert(path);
-    }
-    out.insert(std::path::PathBuf::from("/etc/gitconfig"));
-    if let Some(path) = std::env::var_os("GIT_CONFIG_GLOBAL") {
-        out.insert(path.into());
-    }
-    if let Some(home) = std::env::var_os("HOME") {
-        let home = std::path::PathBuf::from(home);
-        out.insert(home.join(".gitconfig"));
-        out.insert(
-            std::env::var_os("XDG_CONFIG_HOME")
-                .map(std::path::PathBuf::from)
-                .unwrap_or_else(|| home.join(".config"))
-                .join("git/config"),
-        );
-    }
-    out.into_iter().collect()
-}
-
-/// Existing per-directory ignore files. Adding/removing one changes the
-/// directory mtime, which the manifest already validates before this list is used.
-fn per_dir_ignore_candidates(root: &Path, dirs: &[String]) -> Vec<std::path::PathBuf> {
-    let mut out = std::collections::BTreeSet::new();
-    for rel in dirs {
-        let dir = if rel.is_empty() { root.to_owned() } else { root.join(rel) };
-        for name in [".gitignore", ".ignore"] {
-            let path = dir.join(name);
-            if path.is_file() {
-                out.insert(path);
-            }
-        }
-    }
-    out.into_iter().collect()
-}
-
-/// One file's fixed-size columns in the start-up snapshot.
-#[derive(Clone, Copy, Serialize, Deserialize, Default)]
-struct FileMeta {
-    mtime: u64,
-    size: u64,
-    hash: [u8; 32],
-    ignored: bool,
-    /// End of this file's symbols in [`Snapshot::symbols`].
-    sym_end: u32,
-}
-
-/// One symbol's fixed-size columns; names and containers share [`Snapshot::text`].
-#[derive(Clone, Copy, Serialize, Deserialize)]
-struct FlatSymbol {
-    name_start: u32,
-    name_len: u32,
-    container_start: u32,
-    container_len: u32,
-    kind: SymbolKind,
-    range: Range,
-}
-
-/// A columnar copy of the index for fast start-up: a handful of contiguous
-/// arrays and two string arenas instead of one postcard record per redb key.
-#[derive(Serialize, Deserialize, Default)]
-pub(crate) struct Snapshot {
-    rels: String,
-    rel_ends: Vec<u32>,
-    meta: Vec<FileMeta>,
-    symbols: Vec<FlatSymbol>,
-    text: String,
-    dirs: String,
-    dir_ends: Vec<u32>,
-    dir_mtimes: Vec<u64>,
-    dir_counts: Vec<u32>,
-    filter: String,
-    stamp: String,
-    ignore_paths: String,
-    ignore_ends: Vec<u32>,
-    ignore_mtimes: Vec<u64>,
-    ignore_sizes: Vec<u64>,
-    ignore_present: Vec<bool>,
-    ignore_external: Vec<bool>,
-}
-
-impl Snapshot {
-    pub(crate) fn len(&self) -> usize {
-        self.meta.len()
-    }
-
-    pub(crate) fn filter(&self) -> &str {
-        &self.filter
-    }
-
-    pub(crate) fn dirs_len(&self) -> usize {
-        self.dir_mtimes.len()
-    }
-
-    pub(crate) fn dir(&self, dir: usize) -> &str {
-        let start = if dir == 0 { 0 } else { self.dir_ends[dir - 1] as usize };
-        &self.dirs[start..self.dir_ends[dir] as usize]
-    }
-
-    pub(crate) fn dir_mtime(&self, dir: usize) -> u64 {
-        self.dir_mtimes[dir]
-    }
-
-    pub(crate) fn dir_count(&self, dir: usize) -> u32 {
-        self.dir_counts[dir]
-    }
-
-    pub(crate) fn ignore_len(&self) -> usize {
-        self.ignore_mtimes.len()
-    }
-
-    pub(crate) fn ignore_path(&self, i: usize) -> &str {
-        let start = if i == 0 { 0 } else { self.ignore_ends[i - 1] as usize };
-        &self.ignore_paths[start..self.ignore_ends[i] as usize]
-    }
-
-    pub(crate) fn ignore_mtime(&self, i: usize) -> u64 {
-        self.ignore_mtimes[i]
-    }
-
-    pub(crate) fn ignore_size(&self, i: usize) -> u64 {
-        self.ignore_sizes[i]
-    }
-
-    pub(crate) fn ignore_present(&self, i: usize) -> bool {
-        self.ignore_present[i]
-    }
-
-    pub(crate) fn ignore_external(&self, i: usize) -> bool {
-        self.ignore_external[i]
-    }
-
-    pub(crate) fn mtime(&self, file: usize) -> u64 {
-        self.meta[file].mtime
-    }
-
-    pub(crate) fn size(&self, file: usize) -> u64 {
-        self.meta[file].size
-    }
-
-    /// Rejects a corrupt snapshot before any offsets are used for slicing.
-    fn valid(&self) -> bool {
-        let max = u32::MAX as usize;
-        if self.rels.len() > max || self.text.len() > max || self.dirs.len() > max || self.ignore_paths.len() > max {
-            return false;
-        }
-        if self.rel_ends.len() != self.meta.len() {
-            return false;
-        }
-        let boundary = |text: &str, end: u32| end as usize <= text.len() && text.is_char_boundary(end as usize);
-        let mut rel_end = 0;
-        for end in &self.rel_ends {
-            if *end < rel_end || !boundary(&self.rels, *end) {
-                return false;
-            }
-            rel_end = *end;
-        }
-        if rel_end as usize != self.rels.len() {
-            return false;
-        }
-        let mut start = 0;
-        for end in &self.rel_ends {
-            let rel = &self.rels[start..*end as usize];
-            if !crate::data::safe_rel(rel) {
-                return false;
-            }
-            start = *end as usize;
-        }
-        let mut sym_end = 0;
-        for meta in &self.meta {
-            if meta.sym_end < sym_end || meta.sym_end as usize > self.symbols.len() {
-                return false;
-            }
-            sym_end = meta.sym_end;
-        }
-        if sym_end as usize != self.symbols.len() {
-            return false;
-        }
-        if !self.symbols.iter().all(|s| {
-            let Some(name_end) = (s.name_start as usize).checked_add(s.name_len as usize) else {
-                return false;
-            };
-            let Some(container_end) = (s.container_start as usize).checked_add(s.container_len as usize) else {
-                return false;
-            };
-            name_end <= self.text.len()
-                && self.text.is_char_boundary(s.name_start as usize)
-                && self.text.is_char_boundary(name_end)
-                && (s.container_start == u32::MAX
-                    || (s.container_start as usize <= self.text.len()
-                        && container_end <= self.text.len()
-                        && self.text.is_char_boundary(s.container_start as usize)
-                        && self.text.is_char_boundary(container_end)))
-        }) {
-            return false;
-        }
-        if self.dir_ends.len() != self.dir_mtimes.len() || self.dir_counts.len() != self.dir_mtimes.len() {
-            return false;
-        }
-        if self.dir_ends.first() != Some(&0) {
-            return false;
-        }
-        let mut dir_end = 0;
-        for end in &self.dir_ends {
-            if *end < dir_end || !boundary(&self.dirs, *end) {
-                return false;
-            }
-            dir_end = *end;
-        }
-        if dir_end as usize != self.dirs.len() {
-            return false;
-        }
-        let mut start = 0;
-        for end in &self.dir_ends {
-            let dir = &self.dirs[start..*end as usize];
-            if !dir.is_empty() && !crate::data::safe_rel(dir) {
-                return false;
-            }
-            start = *end as usize;
-        }
-        if self.ignore_ends.len() != self.ignore_mtimes.len()
-            || self.ignore_sizes.len() != self.ignore_mtimes.len()
-            || self.ignore_present.len() != self.ignore_mtimes.len()
-            || self.ignore_external.len() != self.ignore_mtimes.len()
-        {
-            return false;
-        }
-        let mut ignore_end = 0;
-        for end in &self.ignore_ends {
-            if *end < ignore_end || !boundary(&self.ignore_paths, *end) {
-                return false;
-            }
-            ignore_end = *end;
-        }
-        if ignore_end as usize != self.ignore_paths.len() {
-            return false;
-        }
-        let mut start = 0;
-        for end in &self.ignore_ends {
-            if start == *end as usize {
-                return false;
-            }
-            start = *end as usize;
-        }
-        true
-    }
-
-    pub(crate) fn rel(&self, file: usize) -> &str {
-        let start = if file == 0 { 0 } else { self.rel_ends[file - 1] as usize };
-        &self.rels[start..self.rel_ends[file] as usize]
-    }
-
-    pub(crate) fn entry(&self, file: usize, root: &Path) -> (FileEntry, Vec<StoredSymbol>) {
-        let meta = self.meta[file];
-        let sym_start = if file == 0 { 0 } else { self.meta[file - 1].sym_end as usize };
-        let symbols = (sym_start..meta.sym_end as usize)
-            .map(|i| {
-                let s = self.symbols[i];
-                let name_start = s.name_start as usize;
-                let name_end = name_start + s.name_len as usize;
-                let name = &self.text[name_start..name_end];
-                let container = (s.container_start != u32::MAX).then(|| {
-                    let start = s.container_start as usize;
-                    &self.text[start..start + s.container_len as usize]
-                });
-                StoredSymbol {
-                    name: name.to_owned(),
-                    kind: s.kind,
-                    container: container.map(str::to_owned),
-                    range: s.range,
-                }
-            })
-            .collect();
-        let rel = self.rel(file);
-        FileEntry::new(
-            root.join(rel),
-            rel.to_owned(),
-            FileRecord { mtime: meta.mtime, size: meta.size, hash: meta.hash, symbols, ignored: meta.ignored },
-        )
-    }
-}
-
 type Result<T> = std::result::Result<T, String>;

 fn err(e: impl std::fmt::Display) -> String {
    e.to_string()
 }

-fn fit(n: usize) -> Result<u32> {
-    u32::try_from(n).map_err(|_| "index snapshot exceeds the 4 GiB span limit".to_owned())
-}
-
 pub(crate) struct Store {
-    /// Opened lazily: a valid warm-start snapshot serves start-up without
-    /// touching redb. Write-locked only for [`Store::compact`].
-    db: RwLock<Option<Database>>,
-    /// Columnar warm-start snapshot, kept beside the database.
-    snapshot: std::path::PathBuf,
-    /// Recent-file list, readable without opening redb.
-    recent_file: std::path::PathBuf,
-    stamp: String,
+    /// Write-locked only for [`Store::compact`].
+    db: RwLock<Database>,
 }

 impl Store {
-    /// Opens (or creates) the cache directory. The redb database itself is opened
-    /// lazily so a valid columnar snapshot can serve start-up without touching it.
-    /// Returns `None` only when the cache directory cannot be created; the index
-    /// then runs in memory only.
+    /// Opens (or creates) `cache_dir/index.redb`. Records written by another
+    /// schema / extractor version or for another root are discarded. Returns
+    /// `None` when the database cannot be used (e.g. locked by another window);
+    /// the index then runs in memory only.
    pub(crate) fn open(cache_dir: &Path, root: &Path, fingerprint: &str) -> Option<Self> {
        if let Err(e) = std::fs::create_dir_all(cache_dir) {
            tracing::warn!("index cache {}: {e}", cache_dir.display());
            return None;
        }
-        let stamp = format!("{SCHEMA}\n{}\n{fingerprint}\n{}", env!("INDEX_SOURCE_HASH"), root.display());
-        Some(Self {
-            db: RwLock::new(None),
-            snapshot: cache_dir.join("index.snapshot"),
-            recent_file: cache_dir.join("recent.snapshot"),
-            stamp,
-        })
-    }
-
-    fn open_db(&self) -> Result<Database> {
-        let file = self.snapshot.with_file_name("index.redb");
+        let file = cache_dir.join("index.redb");
        let db = match Database::create(&file) {
            Ok(db) => db,
            Err(redb::DatabaseError::DatabaseAlreadyOpen) => {
-                return Err(format!("{} is in use", file.display()));
+                tracing::warn!("index cache {} is in use; indexing in memory only", file.display());
+                return None;
            }
            Err(e) => {
                tracing::warn!("index cache {} unreadable ({e}); rebuilding", file.display());
                let _ = std::fs::remove_file(&file);
-                let _ = std::fs::remove_file(&self.snapshot);
-                Database::create(&file).map_err(err)?
+                Database::create(&file).map_err(|e| tracing::warn!("index cache: {e}")).ok()?
            }
        };
-        let valid = {
-            let txn = db.begin_read().map_err(err)?;
-            match txn.open_table(META) {
-                Ok(table) => table.get("stamp").map_err(err)?.is_some_and(|v| v.value() == self.stamp.as_bytes()),
-                Err(TableError::TableDoesNotExist(_)) => false,
-                Err(e) => return Err(err(e)),
+        let store = Self { db: RwLock::new(db) };
+        let stamp = format!("{SCHEMA}\n{}\n{fingerprint}\n{}", env!("INDEX_SOURCE_HASH"), root.display());
+        match store.meta("stamp") {
+            Ok(Some(v)) if v == stamp.as_bytes() => {}
+            _ => {
+                if let Err(e) = store.reset(&stamp) {
+                    tracing::warn!("index cache reset failed: {e}");
+                    return None;
+                }
            }
+        }
+        Some(store)
+    }
+
+    fn meta(&self, key: &str) -> Result<Option<Vec<u8>>> {
+        let txn = self.db.read().begin_read().map_err(err)?;
+        let table = match txn.open_table(META) {
+            Ok(t) => t,
+            Err(TableError::TableDoesNotExist(_)) => return Ok(None),
+            Err(e) => return Err(err(e)),
        };
-        if !valid {
-            let _ = std::fs::remove_file(&self.snapshot);
-            let _ = std::fs::remove_file(&self.recent_file);
-            Self::reset_db(&db, &self.stamp)?;
-        }
-        Ok(db)
+        Ok(table.get(key).map_err(err)?.map(|v| v.value().to_vec()))
    }

-    fn ensure_db(&self) -> Result<()> {
-        if self.db.read().is_some() {
-            return Ok(());
-        }
-        let mut slot = self.db.write();
-        if slot.is_none() {
-            *slot = Some(self.open_db()?);
-        }
-        Ok(())
-    }
-
-    fn reset_db(db: &Database, stamp: &str) -> Result<()> {
-        let txn = db.begin_write().map_err(err)?;
+    fn reset(&self, stamp: &str) -> Result<()> {
+        let txn = self.db.read().begin_write().map_err(err)?;
        match txn.delete_table(FILES) {
            Ok(_) | Err(TableError::TableDoesNotExist(_)) => {}
            Err(e) => return Err(err(e)),
@@ -415,31 +82,16 @@ impl Store {
        txn.commit().map_err(err)
    }

-    fn meta(&self, key: &str) -> Result<Option<Vec<u8>>> {
-        self.ensure_db()?;
-        let db = self.db.read();
-        let txn = db.as_ref().expect("ensured").begin_read().map_err(err)?;
-        let table = match txn.open_table(META) {
-            Ok(t) => t,
-            Err(TableError::TableDoesNotExist(_)) => return Ok(None),
-            Err(e) => return Err(err(e)),
-        };
-        Ok(table.get(key).map_err(err)?.map(|v| v.value().to_vec()))
-    }
-
    /// All persisted records; undecodable entries are skipped (and re-indexed).
    pub(crate) fn load(&self) -> Result<Vec<(String, FileRecord)>> {
-        self.ensure_db()?;
-        let db = self.db.read();
-        let txn = db.as_ref().expect("ensured").begin_read().map_err(err)?;
+        let txn = self.db.read().begin_read().map_err(err)?;
        let table = match txn.open_table(FILES) {
            Ok(t) => t,
            Err(TableError::TableDoesNotExist(_)) => return Ok(Vec::new()),
            Err(e) => return Err(err(e)),
        };
-        let iter = table.iter().map_err(err)?;
-        let mut out = Vec::with_capacity(iter.size_hint().0);
-        for item in iter {
+        let mut out = Vec::new();
+        for item in table.iter().map_err(err)? {
            let (k, v) = item.map_err(err)?;
            if let Ok(rec) = postcard::from_bytes::<FileRecord>(v.value()) {
                out.push((k.value().to_owned(), rec));
@@ -448,115 +100,10 @@ impl Store {
        Ok(out)
    }

-    /// Writes the current index as one columnar snapshot for fast next start-up.
-    /// Only records persisted below `root` are included; content roots outside it
-    /// are rescanned, as they are for the per-file records.
-    pub(crate) fn save_snapshot(&self, data: &IndexData, filter: &PathFilter, not_after: SystemTime) -> Result<()> {
-        let guard = not_after.duration_since(UNIX_EPOCH).map_or(0, |d| d.as_nanos() as u64);
-        let root = filter.root();
-        let mut snap = Snapshot { filter: filter.stamp(), stamp: self.stamp.clone(), ..Default::default() };
-        let mut dirs: std::collections::BTreeSet<String> = std::collections::BTreeSet::new();
-        dirs.insert(String::new());
-        for dir in filter.dirs(root) {
-            if let Ok(rel) = dir.strip_prefix(root) {
-                dirs.insert(rel.to_string_lossy().replace('\\', "/").trim_end_matches('/').to_owned());
-            }
-        }
-        for e in data.files.iter().flatten().filter(|e| e.path.starts_with(root)) {
-            dirs.insert(e.dir().trim_end_matches('/').to_owned());
-            snap.rels.push_str(&e.rel);
-            snap.rel_ends.push(fit(snap.rels.len())?);
-            for s in data.symbols_of(e) {
-                let name_start = fit(snap.text.len())?;
-                snap.text.push_str(s.name);
-                let (container_start, container_len) = match s.container {
-                    Some(c) => {
-                        let start = fit(snap.text.len())?;
-                        snap.text.push_str(c);
-                        (start, fit(c.len())?)
-                    }
-                    None => (u32::MAX, 0),
-                };
-                snap.symbols.push(FlatSymbol {
-                    name_start,
-                    name_len: fit(s.name.len())?,
-                    container_start,
-                    container_len,
-                    kind: s.kind,
-                    range: s.range,
-                });
-            }
-            snap.meta.push(FileMeta {
-                mtime: e.mtime,
-                size: e.size,
-                hash: e.hash,
-                ignored: e.ignored,
-                sym_end: fit(snap.symbols.len())?,
-            });
-        }
-        let dir_list: Vec<String> = dirs.into_iter().collect();
-        for rel in &dir_list {
-            let path = if rel.is_empty() { root.to_owned() } else { root.join(rel) };
-            let mtime = std::fs::symlink_metadata(&path).ok().map(|m| mtime_of(&m)).unwrap_or(0);
-            if mtime > guard {
-                let _ = std::fs::remove_file(&self.snapshot);
-                return Ok(());
-            }
-            let count = if rel.is_empty() {
-                0
-            } else {
-                let key = format!("{rel}/");
-                data.dirs.get(key.as_str()).map_or(0, |d| d.1)
-            };
-            snap.dirs.push_str(rel);
-            snap.dir_ends.push(fit(snap.dirs.len())?);
-            snap.dir_mtimes.push(mtime);
-            snap.dir_counts.push(count);
-        }
-        let external: std::collections::BTreeSet<std::path::PathBuf> =
-            external_ignore_candidates(root).into_iter().collect();
-        let mut candidates: std::collections::BTreeSet<std::path::PathBuf> =
-            per_dir_ignore_candidates(root, &dir_list).into_iter().collect();
-        candidates.extend(external.iter().cloned());
-        for path in candidates {
-            let meta = std::fs::metadata(&path).ok();
-            let present = meta.is_some();
-            let mtime = meta.as_ref().map_or(0, mtime_of);
-            if mtime > guard {
-                let _ = std::fs::remove_file(&self.snapshot);
-                return Ok(());
-            }
-            snap.ignore_paths.push_str(&path.to_string_lossy());
-            snap.ignore_ends.push(fit(snap.ignore_paths.len())?);
-            snap.ignore_mtimes.push(if present { mtime } else { 0 });
-            snap.ignore_sizes.push(if present { meta.as_ref().map_or(0, |m| m.len()) } else { 0 });
-            snap.ignore_present.push(present);
-            snap.ignore_external.push(external.contains(&path));
-        }
-        fit(snap.rels.len())?;
-        fit(snap.text.len())?;
-        fit(snap.dirs.len())?;
-        fit(snap.ignore_paths.len())?;
-        let bytes = postcard::to_allocvec(&snap).map_err(err)?;
-        let tmp = self.snapshot.with_extension("snapshot.tmp");
-        std::fs::write(&tmp, &bytes).map_err(err)?;
-        let _ = std::fs::remove_file(&self.snapshot);
-        std::fs::rename(&tmp, &self.snapshot).map_err(err)
-    }
-
-    /// The columnar start-up snapshot, if it was written and still decodes.
-    pub(crate) fn load_snapshot(&self) -> Option<Snapshot> {
-        let bytes = std::fs::read(&self.snapshot).ok()?;
-        let snapshot: Snapshot = postcard::from_bytes(&bytes).ok()?;
-        (snapshot.stamp == self.stamp && snapshot.valid()).then_some(snapshot)
-    }
-
    /// Applies upserts and deletions in one transaction. Non-durable commits
    /// are cheap (no fsync) and become durable with the next durable one.
    pub(crate) fn apply(&self, puts: &[(String, FileRecord)], deletes: &[String], durable: bool) -> Result<()> {
-        self.ensure_db()?;
-        let db = self.db.read();
-        let mut txn = db.as_ref().expect("ensured").begin_write().map_err(err)?;
+        let mut txn = self.db.read().begin_write().map_err(err)?;
        if !durable {
            txn.set_durability(Durability::None).map_err(err)?;
        }
@@ -573,47 +120,25 @@ impl Store {
                table.remove(rel.as_str()).map_err(err)?;
            }
        }
-        // Any file change makes the columnar start-up snapshot stale.
-        let _ = std::fs::remove_file(&self.snapshot);
        txn.commit().map_err(err)
    }

    /// Reclaims free pages in the database file; `true` if anything was compacted.
    pub(crate) fn compact(&self) -> Result<bool> {
-        self.ensure_db()?;
-        let mut db = self.db.write();
-        db.as_mut().expect("ensured").compact().map_err(err)
+        self.db.write().compact().map_err(err)
    }

    pub(crate) fn load_recent(&self) -> Vec<String> {
-        if let Some(recent) = self.load_recent_file() {
-            return recent;
-        }
        self.meta("recent").ok().flatten().and_then(|v| postcard::from_bytes(&v).ok()).unwrap_or_default()
    }

-    /// Recent files without opening redb (the warm-start path).
-    pub(crate) fn load_recent_file(&self) -> Option<Vec<String>> {
-        let bytes = std::fs::read(&self.recent_file).ok()?;
-        postcard::from_bytes(&bytes).ok()
-    }
-
    pub(crate) fn save_recent(&self, recent: &[String]) -> Result<()> {
-        self.save_recent_file(recent)?;
        let bytes = postcard::to_allocvec(recent).map_err(err)?;
        self.set_meta("recent", &bytes)
    }

-    /// Rewrites only the recent sidecar, without opening redb.
-    pub(crate) fn save_recent_file(&self, recent: &[String]) -> Result<()> {
-        let bytes = postcard::to_allocvec(recent).map_err(err)?;
-        std::fs::write(&self.recent_file, &bytes).map_err(err)
-    }
-
    fn set_meta(&self, key: &str, value: &[u8]) -> Result<()> {
-        self.ensure_db()?;
-        let db = self.db.read();
-        let txn = db.as_ref().expect("ensured").begin_write().map_err(err)?;
+        let txn = self.db.read().begin_write().map_err(err)?;
        txn.open_table(META).map_err(err)?.insert(key, value).map_err(err)?;
        txn.commit().map_err(err)
    }
@@ -658,58 +183,4 @@ mod tests {
        let s = Store::open(dir.path(), Path::new("/p"), "fp").unwrap();
        assert!(s.load().unwrap().is_empty());
    }
-
-    #[test]
-    fn snapshot_roundtrips_and_is_invalidated_by_changes() {
-        use crate::data::{FileEntry, IndexData, StoredSymbol};
-        use ide_core::{Range, SymbolKind};
-
-        let dir = tempfile::tempdir().unwrap();
-        let store = Store::open(dir.path(), Path::new("/p"), "fp").unwrap();
-        let record = FileRecord {
-            mtime: 7,
-            size: 3,
-            symbols: vec![StoredSymbol {
-                name: "OrderController".into(),
-                kind: SymbolKind::Class,
-                container: Some("Order".into()),
-                range: Range::default(),
-            }],
-            ..Default::default()
-        };
-        let mut data = IndexData::default();
-        let (entry, symbols) =
-            FileEntry::new(std::path::PathBuf::from("/p/src/Order.rs"), "src/Order.rs".into(), record);
-        data.insert(entry, symbols);
-        // Content roots outside the project root are rescanned, not snapshotted.
-        let (entry, symbols) =
-            FileEntry::new(std::path::PathBuf::from("/elsewhere/x.rs"), "x.rs".into(), FileRecord::default());
-        data.insert(entry, symbols);
-        store
-            .save_snapshot(&data, &PathFilter::new(Path::new("/p"), &Vec::new().into(), &[]), SystemTime::now())
-            .unwrap();
-
-        let snapshot = store.load_snapshot().expect("snapshot");
-        assert_eq!(snapshot.len(), 1);
-        assert_eq!(snapshot.rel(0), "src/Order.rs");
-        let (entry, symbols) = snapshot.entry(0, Path::new("/p"));
-        assert_eq!(&*entry.rel, "src/Order.rs");
-        assert_eq!(symbols.len(), 1);
-        assert_eq!(symbols[0].name, "OrderController");
-        assert_eq!(symbols[0].container.as_deref(), Some("Order"));
-
-        store.apply(&[], &[], false).unwrap();
-        assert!(store.load_snapshot().is_none(), "a file change invalidates the snapshot");
-    }
-
-    #[test]
-    fn snapshot_validation_rejects_bad_paths_and_split_utf8() {
-        let escaping =
-            Snapshot { rels: "../x".into(), rel_ends: vec![4], meta: vec![FileMeta::default()], ..Default::default() };
-        assert!(!escaping.valid());
-
-        let split =
-            Snapshot { rels: "é".into(), rel_ends: vec![1], meta: vec![FileMeta::default()], ..Default::default() };
-        assert!(!split.valid());
-    }
 }
@@ -772,49 +772,6 @@ fn persisted_symbols_do_not_load_through_escaping_symlink_ancestors() {
    assert_eq!(initial.lock()[0], 0, "unsafe cached symbols must never be published");
 }

-#[test]
-fn incremental_changes_refresh_the_warm_start_snapshot() {
-    let f = Fixture::new(&[("src/a.rs", "fn a() {}\n")]);
-    let idx = f.open();
-    let changed = f.write("src/a.rs", "fn renamed() {}\n");
-    idx.update(&[changed], &[]);
-    assert!(idx.wait_idle(WAIT));
-    std::thread::sleep(Duration::from_millis(150));
-    assert!(f.cache.join("index.snapshot").exists(), "a watcher update must regenerate the snapshot");
-}
-
-#[test]
-fn warm_start_detects_changed_ignore_rules() {
-    let f = Fixture::new(&[("sub/generated/a.rs", "fn a() {}\n"), (".git/HEAD", "ref: refs/heads/main\n")]);
-    f.write("sub/.gitignore", "");
-    let idx = f.open();
-    assert_eq!(idx.status().files, 2, "generated/a.rs plus .gitignore itself");
-    drop(idx);
-
-    std::thread::sleep(Duration::from_millis(20));
-    f.write("sub/.gitignore", "generated/\n");
-    let idx = f.open();
-    assert_eq!(idx.status().files, 1, "an updated ignore rule invalidates the warm snapshot");
-}
-
-#[test]
-fn warm_start_detects_a_new_file_in_an_existing_empty_directory() {
-    let f = Fixture::new(&[("src/a.rs", "fn a() {}\n")]);
-    std::fs::create_dir(f.root.join("empty")).unwrap();
-    let idx = f.open();
-    assert_eq!(idx.status().files, 1);
-    assert!(idx.find_dirs("empty", 10).is_empty());
-    drop(idx);
-    let idx = f.open();
-    assert!(idx.find_dirs("empty", 10).is_empty(), "empty folders are not searchable after warm start");
-    drop(idx);
-
-    f.write("empty/new.rs", "fn new_symbol() {}\n");
-    let idx = f.open();
-    assert_eq!(idx.status().files, 2);
-    assert_eq!(symbols(&idx, "new_symbol", SymbolFilter::All), ["new_symbol"]);
-}
-
 #[test]
 fn rule_changes_refresh_only_the_affected_index_subtree() {
    for (rule, subtree) in [(".git/info/exclude", ""), ("sub/.gitignore", "sub"), ("sub/.ignore", "sub")] {
@@ -877,42 +834,3 @@ fn repository_rule_changes_refresh_members_of_an_unindexed_container() {
    assert!(idx.wait_idle(WAIT));
    assert_eq!(files(&idx, "item.txt"), ["member/generated/item.txt"]);
 }
-
-#[test]
-fn warm_start_sees_edits_deletions_and_renames_made_while_closed() {
-    let f = Fixture::new(&[
-        ("src/a.rs", "fn aaaa() {}\n"),
-        ("src/deep/b.rs", "fn bbbb() {}\n"),
-        ("c.rs", "fn cccc() {}\n"),
-    ]);
-    let idx = f.open();
-    assert!(idx.wait_idle(WAIT));
-    drop(idx);
-    std::thread::sleep(Duration::from_millis(200));
-    // Warm start of an unchanged tree keeps everything.
-    let idx = f.open();
-    assert!(idx.wait_idle(WAIT));
-    assert_eq!(symbols(&idx, "aaaa", SymbolFilter::All), ["aaaa"]);
-    drop(idx);
-    std::thread::sleep(Duration::from_millis(20));
-    // Same size, new content; a deletion; a new file two levels down; a rename.
-    f.write("src/a.rs", "fn zzzz() {}\n");
-    std::fs::remove_file(f.root.join("c.rs")).unwrap();
-    f.write("src/deep/deeper/n.rs", "fn nnnn() {}\n");
-    std::fs::rename(f.root.join("src/deep/b.rs"), f.root.join("src/deep/r.rs")).unwrap();
-    let idx = f.open();
-    assert!(idx.wait_idle(WAIT));
-    assert!(symbols(&idx, "aaaa", SymbolFilter::All).is_empty(), "stale content");
-    assert_eq!(symbols(&idx, "zzzz", SymbolFilter::All), ["zzzz"]);
-    assert!(symbols(&idx, "cccc", SymbolFilter::All).is_empty(), "deleted file");
-    assert_eq!(symbols(&idx, "nnnn", SymbolFilter::All), ["nnnn"]);
-    assert_eq!(symbols(&idx, "bbbb", SymbolFilter::All), ["bbbb"]);
-    assert_eq!(idx.status().files, 3);
-    drop(idx);
-    // After the cold rescan, the next warm start agrees.
-    std::thread::sleep(Duration::from_millis(200));
-    let idx = f.open();
-    assert!(idx.wait_idle(WAIT));
-    assert_eq!(idx.status().files, 3);
-    assert_eq!(symbols(&idx, "zzzz", SymbolFilter::All), ["zzzz"]);
-}
@@ -1,8 +1,8 @@
 //! The background indexing thread: initial load + full scan, then incremental
 //! updates queued by the watcher.

-use crate::data::{FileEntry, FileRecord, IndexData, StoredSymbol, safe_rel};
-use crate::filter::{Found, PathFilter, mtime_of};
+use crate::data::{FileEntry, FileRecord, IndexData, StoredSymbol};
+use crate::filter::{Found, PathFilter};
 use crate::store::Store;
 use ide_core::{IdeEvent, SharedSink, TaskId};
 use ide_language::{LanguageRegistry, Syntax};
@@ -12,16 +12,12 @@ use std::collections::{HashMap, HashSet, VecDeque};
 use std::io::Read;
 use std::path::{Path, PathBuf};
 use std::sync::atomic::{AtomicBool, Ordering};
-use std::time::{Duration, Instant, SystemTime};
+use std::time::{Duration, Instant};

 /// Files larger than this are listed but not parsed for symbols.
 pub const MAX_SYMBOL_FILE: u64 = 2 * 1024 * 1024;
 const CHUNK: usize = 512;
 const PROGRESS_EVERY: Duration = Duration::from_millis(250);
-#[cfg(not(test))]
-const SNAPSHOT_DELAY: Duration = Duration::from_secs(2);
-#[cfg(test)]
-const SNAPSHOT_DELAY: Duration = Duration::from_millis(50);
 pub(crate) const MAX_RECENT: usize = 50;

 pub(crate) enum Job {
@@ -59,11 +55,6 @@ pub(crate) struct Shared {
    queue: Mutex<Queue>,
    wake: Condvar,
    idle: Condvar,
-    /// Coalesced post-update snapshot refresh.
-    snapshot_due: Mutex<Option<Instant>>,
-    /// Directories whose watcher events still need reconciliation before a
-    /// refreshed snapshot can be trusted.
-    pending_dirs: Mutex<HashSet<PathBuf>>,
 }

 impl Shared {
@@ -88,8 +79,6 @@ impl Shared {
            queue: Mutex::default(),
            wake: Condvar::new(),
            idle: Condvar::new(),
-            snapshot_due: Mutex::default(),
-            pending_dirs: Mutex::default(),
        }
    }

@@ -146,15 +135,8 @@ impl Shared {
            q.busy = true;
        }
        if scan {
-            // A warm start can trust the snapshot when neither the scope nor any
-            // directory/file metadata changed. Rebuilding the walk's file list is
-            // the expensive part; validate the flat manifest first.
-            if !self.try_fast_start() {
-                let snapshot_guard = SystemTime::now();
-                let found = self.walk_roots(None);
-                self.load_persisted(&found);
-                self.full_scan(Some(found), snapshot_guard);
-            }
+            self.load_persisted();
+            self.full_scan();
        } else {
            self.indexing.store(false, Ordering::SeqCst);
        }
@@ -165,38 +147,17 @@ impl Shared {
            self.idle.notify_all();
        }
        loop {
-            let mut save_due = false;
            let jobs: Vec<Job> = {
                let mut q = self.queue.lock();
-                loop {
-                    if self.is_cancelled() {
-                        return;
-                    }
-                    if !q.jobs.is_empty() {
-                        break;
-                    }
-                    let due = *self.snapshot_due.lock();
-                    if let Some(due) = due {
-                        if Instant::now() >= due {
-                            save_due = true;
-                            break;
-                        }
-                        self.wake.wait_until(&mut q, due);
-                    } else {
-                        self.wake.wait(&mut q);
-                    }
+                while q.jobs.is_empty() && !self.is_cancelled() {
+                    self.wake.wait(&mut q);
                }
-                if save_due {
-                    Vec::new()
-                } else {
-                    q.busy = true;
-                    q.jobs.drain(..).collect()
+                if self.is_cancelled() {
+                    return;
                }
+                q.busy = true;
+                q.jobs.drain(..).collect()
            };
-            if save_due {
-                self.save_snapshot_now();
-                continue;
-            }
            self.process(jobs);
            let mut q = self.queue.lock();
            q.busy = false;
@@ -206,114 +167,27 @@ impl Shared {
        }
    }

-    /// Warm start: validate the snapshot's flat directory/file manifest and hydrate
-    /// without walking the tree. A changed scope, symlink, directory mtime, file
-    /// mtime or file size falls back to the full walk.
-    fn try_fast_start(&self) -> bool {
-        let started = Instant::now();
-        let Some(store) = &self.store else { return false };
-        let load_started = Instant::now();
-        let Some(snapshot) = store.load_snapshot() else { return false };
-        let loaded = load_started.elapsed();
+    fn load_persisted(&self) {
+        let Some(store) = &self.store else { return };
        let filter = self.filter();
-        if filter.has_extra_roots() || snapshot.filter() != filter.stamp() {
-            return false;
-        }
-        let root = filter.root();
-        for i in 0..snapshot.dirs_len() {
-            let rel = snapshot.dir(i);
-            let path = if rel.is_empty() { root.to_owned() } else { root.join(rel) };
-            let Ok(meta) = std::fs::symlink_metadata(&path) else { return false };
-            if !meta.is_dir() || mtime_of(&meta) != snapshot.dir_mtime(i) {
-                return false;
-            }
-        }
-        let external = crate::store::external_ignore_candidates(root);
-        let saved_external: Vec<&str> = (0..snapshot.ignore_len())
-            .filter(|&i| snapshot.ignore_external(i))
-            .map(|i| snapshot.ignore_path(i))
-            .collect();
-        if external.len() != saved_external.len()
-            || external.iter().zip(&saved_external).any(|(path, saved)| path.to_string_lossy() != **saved)
-        {
-            return false;
-        }
-        for i in 0..snapshot.ignore_len() {
-            let path = Path::new(snapshot.ignore_path(i));
-            let meta = std::fs::metadata(path).ok();
-            let present = meta.is_some();
-            if present != snapshot.ignore_present(i) {
-                return false;
-            }
-            if let Some(meta) = meta
-                && (mtime_of(&meta) != snapshot.ignore_mtime(i) || meta.len() != snapshot.ignore_size(i))
-            {
-                return false;
-            }
-        }
-        let build_started = Instant::now();
-        let entries: Vec<Option<(FileEntry, Vec<StoredSymbol>)>> = (0..snapshot.len())
-            .into_par_iter()
-            .map(|i| {
-                let path = root.join(snapshot.rel(i));
-                let meta = std::fs::symlink_metadata(&path).ok()?;
-                if !meta.is_file() || mtime_of(&meta) != snapshot.mtime(i) || meta.len() != snapshot.size(i) {
-                    return None;
+        let root = filter.root().to_owned();
+        match store.load() {
+            Ok(records) => {
+                let entries: Vec<FileEntry> = records
+                    .into_par_iter()
+                    .filter(|(rel, _)| {
+                        let path = root.join(rel);
+                        !filter.is_excluded(&path, false) && dunce::canonicalize(&path).is_ok_and(|real| real == path)
+                    })
+                    .map(|(rel, rec)| FileEntry::new(root.join(&rel), rel, rec))
+                    .collect();
+                let mut d = self.data.write();
+                for e in entries {
+                    d.insert(e);
                }
-                Some(snapshot.entry(i, root))
-            })
-            .collect();
-        let built = build_started.elapsed();
-        if entries.iter().any(Option::is_none) {
-            return false;
-        }
-        let validated = entries;
-        let mut entries = Vec::with_capacity(validated.len());
-        for entry in validated {
-            entries.push(entry.expect("validated above"));
-        }
-        let dirs: Vec<(Box<str>, PathBuf, u32)> = (0..snapshot.dirs_len())
-            .filter_map(|i| {
-                let rel = snapshot.dir(i);
-                (!rel.is_empty() && snapshot.dir_count(i) > 0).then(|| {
-                    let key = format!("{rel}/");
-                    (key.into_boxed_str(), root.join(rel), snapshot.dir_count(i))
-                })
-            })
-            .collect();
-        let insert_started = Instant::now();
-        let mut d = self.data.write();
-        d.load_bulk(entries, dirs);
-        drop(d);
-        tracing::info!(
-            "index snapshot: warm start in {:?} (load {loaded:?}, validate/build {built:?}, insert {:?})",
-            started.elapsed(),
-            insert_started.elapsed()
-        );
-        #[cfg(test)]
-        eprintln!(
-            "index snapshot: warm start load {loaded:?}, validate/build {built:?}, insert {:?}, total {:?}",
-            insert_started.elapsed(),
-            started.elapsed()
-        );
-        self.indexing.store(false, Ordering::SeqCst);
-        self.emit_state();
-        let recent = store.load_recent_file().unwrap_or_else(|| {
-            let recent = store.load_recent();
-            let _ = store.save_recent_file(&recent);
-            recent
-        });
-        let mut r = self.recent.lock();
-        for p in recent.into_iter().map(|rel| root.join(rel)) {
-            if !r.contains(&p) {
-                r.push(p);
            }
+            Err(e) => tracing::warn!("index cache load failed: {e}"),
        }
-        r.truncate(MAX_RECENT);
-        true
-    }
-
-    fn load_recent(&self, store: &Store, root: &Path) {
        let recent: Vec<PathBuf> = store.load_recent().into_iter().map(|rel| root.join(rel)).collect();
        let mut r = self.recent.lock();
        for p in recent {
@@ -324,72 +198,6 @@ impl Shared {
        r.truncate(MAX_RECENT);
    }

-    fn load_persisted(&self, found: &[Found]) {
-        let Some(store) = &self.store else { return };
-        let root = self.filter().root().to_owned();
-        let seen: HashSet<&Path> = found.iter().map(|f| f.path.as_path()).collect();
-        let started = Instant::now();
-        match store.load_snapshot() {
-            Some(snapshot) => {
-                let entries: Vec<(FileEntry, Vec<StoredSymbol>)> = (0..snapshot.len())
-                    .into_par_iter()
-                    .filter_map(|i| {
-                        let rel = snapshot.rel(i);
-                        if !safe_rel(rel) {
-                            return None;
-                        }
-                        let path = root.join(rel);
-                        seen.contains(path.as_path()).then(|| snapshot.entry(i, &root))
-                    })
-                    .collect();
-                let mut d = self.data.write();
-                let symbols = entries.iter().map(|(_, symbols)| symbols.len()).sum();
-                d.reserve(entries.len(), symbols, 0);
-                for (e, symbols) in entries {
-                    d.insert(e, symbols);
-                }
-                tracing::info!(
-                    "index snapshot: hydrated {} files, {} symbols in {:?}",
-                    d.file_count,
-                    d.symbol_count,
-                    started.elapsed()
-                );
-                #[cfg(test)]
-                eprintln!("index snapshot: hydrated {} files in {:?}", d.file_count, started.elapsed());
-            }
-            None => match store.load() {
-                Ok(records) => {
-                    // Fallback for an index that changed since the snapshot: redb
-                    // records are decoded one file at a time and filtered by the walk.
-                    let entries: Vec<(FileEntry, Vec<StoredSymbol>)> = records
-                        .into_par_iter()
-                        .filter(|(rel, _)| {
-                            safe_rel(rel) && {
-                                let path = root.join(rel);
-                                seen.contains(path.as_path())
-                            }
-                        })
-                        .map(|(rel, rec)| FileEntry::new(root.join(&rel), rel, rec))
-                        .collect();
-                    let mut d = self.data.write();
-                    let symbols = entries.iter().map(|(_, symbols)| symbols.len()).sum();
-                    d.reserve(entries.len(), symbols, 0);
-                    for (e, symbols) in entries {
-                        d.insert(e, symbols);
-                    }
-                    tracing::info!(
-                        "index cache: hydrated {} files, {} symbols in {:?}",
-                        d.file_count,
-                        d.symbol_count,
-                        started.elapsed()
-                    );
-                }
-                Err(e) => tracing::warn!("index cache load failed: {e}"),
-            },
-        }
-        self.load_recent(store, &root);
-    }
-
    /// A cancelled scan (project closed) still ends its progress task and the indexing state.
    fn end_scan(&self, task: TaskId) {
        self.indexing.store(false, Ordering::SeqCst);
@@ -404,24 +212,11 @@ impl Shared {
        self.emit_state();
    }

-    fn walk_roots(&self, dirs: Option<&[PathBuf]>) -> Vec<Found> {
-        let filter = self.filter();
-        let roots: Vec<&Path> = match dirs {
-            Some(dirs) => dirs.iter().map(PathBuf::as_path).collect(),
-            None => filter.roots().collect(),
-        };
-        let mut found = Vec::new();
-        for root in roots {
-            found.extend(filter.walk(root, &self.cancelled));
-        }
-        found
+    fn full_scan(&self) {
+        self.scan(None);
    }

-    fn full_scan(&self, found: Option<Vec<Found>>, guard: SystemTime) {
-        self.scan(None, found, guard);
-    }
-
-    fn scan(&self, dirs: Option<&[PathBuf]>, prewalked: Option<Vec<Found>>, guard: SystemTime) {
+    fn scan(&self, dirs: Option<&[PathBuf]>) {
        let started = Instant::now();
        self.indexing.store(true, Ordering::SeqCst);
        self.emit_state();
@@ -436,7 +231,14 @@ impl Shared {
        });

        let filter = self.filter();
-        let found = prewalked.unwrap_or_else(|| self.walk_roots(dirs));
+        let mut found = Vec::new();
+        let roots: Vec<&Path> = match dirs {
+            Some(dirs) => dirs.iter().map(PathBuf::as_path).collect(),
+            None => filter.roots().collect(),
+        };
+        for root in roots {
+            found.extend(filter.walk(root, &self.cancelled));
+        }
        if self.is_cancelled() {
            return self.end_scan(task);
        }
@@ -483,17 +285,6 @@ impl Shared {
            }
        }
        self.persist(&[], &[], true);
-        if let Some(store) = &self.store {
-            let recent: Vec<String> = self.recent.lock().iter().filter_map(|p| filter.store_key(p)).collect();
-            let d = self.data.read();
-            if let Err(e) = store.save_snapshot(&d, &filter, guard) {
-                tracing::warn!("index snapshot: {e}");
-            }
-            if let Err(e) = store.save_recent_file(&recent) {
-                tracing::warn!("index recent snapshot: {e}");
-            }
-        }
-        *self.snapshot_due.lock() = None;
        self.indexing.store(false, Ordering::SeqCst);
        self.sink.emit(IdeEvent::Task {
            id: task,
@@ -530,7 +321,8 @@ impl Shared {
                match self.extract(f, prev_hash) {
                    Extracted::Unchanged => {
                        // Same content, new mtime: keep the symbols, refresh metadata.
-                        let mut rec = self.data.read().record_of(&f.path)?;
+                        let d = self.data.read();
+                        let mut rec = d.get(&f.path)?.record();
                        rec.mtime = f.mtime;
                        rec.size = f.size;
                        rec.ignored = f.ignored;
@@ -546,46 +338,16 @@ impl Shared {
        let puts: Vec<(String, FileRecord)> =
            extracted.iter().filter_map(|(_, rec, path)| Some((filter.store_key(path)?, rec.clone()))).collect();
        {
-            let entries: Vec<(FileEntry, Vec<StoredSymbol>)> =
+            let entries: Vec<FileEntry> =
                extracted.into_iter().map(|(rel, rec, path)| FileEntry::new(path, rel, rec)).collect();
            let mut d = self.data.write();
-            for (e, symbols) in entries {
-                d.insert(e, symbols);
+            for e in entries {
+                d.insert(e);
            }
        }
        self.persist(&puts, &[], false);
    }

-    fn schedule_snapshot(&self) {
-        if self.store.is_none() {
-            return;
-        }
-        let mut due = self.snapshot_due.lock();
-        if due.is_none() {
-            *due = Some(Instant::now() + SNAPSHOT_DELAY);
-        }
-    }
-
-    fn save_snapshot_now(&self) {
-        let dirs: Vec<PathBuf> = self.pending_dirs.lock().drain().collect();
-        if !dirs.is_empty() {
-            // Reconcile the directories touched since the last scan before
-            // recording their mtimes; otherwise a missed watcher event could be
-            // blessed into the manifest.
-            self.scan(Some(&dirs), None, SystemTime::now());
-            return;
-        }
-        if let Some(store) = &self.store {
-            let filter = self.filter();
-            let guard = SystemTime::now();
-            let d = self.data.read();
-            if let Err(e) = store.save_snapshot(&d, &filter, guard) {
-                tracing::warn!("index snapshot: {e}");
-            }
-        }
-        *self.snapshot_due.lock() = None;
-    }
-
    fn persist(&self, puts: &[(String, FileRecord)], deletes: &[String], durable: bool) {
        if let Some(store) = &self.store
            && let Err(e) = store.apply(puts, deletes, durable)
@@ -645,17 +407,6 @@ impl Shared {
                Job::Reparse(before) => reparse.push(before),
            }
        }
-        {
-            let mut pending = self.pending_dirs.lock();
-            for path in changed.iter().chain(removed.iter()) {
-                let dir = if path.is_dir() {
-                    path.clone()
-                } else {
-                    path.parent().map_or_else(|| path.clone(), Path::to_owned)
-                };
-                pending.insert(dir);
-            }
-        }
        if !rule_dirs.is_empty() {
            {
                let mut filter = self.filter.write();
@@ -670,14 +421,14 @@ impl Shared {
                }
            }
            if !rescan {
-                self.scan(Some(&roots), None, SystemTime::now());
+                self.scan(Some(&roots));
                changed.retain(|p| !roots.iter().any(|root| p.starts_with(root)));
                removed.retain(|p| !roots.iter().any(|root| p.starts_with(root)));
            }
        }
        if rescan {
            // The scan also picks up whatever `changed` / `removed` reported.
-            self.full_scan(None, SystemTime::now());
+            self.full_scan();
            changed.clear();
            removed.clear();
        }
@@ -772,7 +523,6 @@ impl Shared {
        if touched {
            self.persist(&[], &[], true);
            self.emit_state();
-            self.schedule_snapshot();
        }
    }
 }
@@ -792,17 +542,3 @@ enum Extracted {
    Unchanged,
    New(FileRecord),
 }
-
-#[cfg(test)]
-mod tests {
-    use crate::data::safe_rel;
-
-    #[test]
-    fn cache_keys_stay_below_the_root() {
-        assert!(safe_rel("src/main.rs"));
-        assert!(safe_rel("a/b/c.rs"));
-        for bad in ["", "/etc/passwd", "../out.rs", "a/../../b.rs", "./a.rs"] {
-            assert!(!safe_rel(bad), "{bad:?}");
-        }
-    }
-}
@@ -223,10 +223,6 @@ pub trait Handler: Send + Sync + 'static {

    /// Called once the response to a `method` request is queued: what it sends follows the response.
    fn after_response(&self, _method: &str) {}
-
-    /// Adjusts every message from the peer (responses included) before it is dispatched, e.g.
-    /// to repair values the peer spells more loosely than the types that read them accept.
-    fn normalize_incoming(&self, _message: &mut Value) {}
 }

 /// A [`Handler`] that ignores notifications and rejects requests.
@@ -589,10 +585,9 @@ impl Peer {
                .expect("spawn jsonrpc notification thread");
        }

-        // Reader: parses and dispatches; runs no handler code beyond `normalize_incoming`.
+        // Reader: parses and dispatches; never runs handler code itself.
        {
            let inner = inner.clone();
-            let handler = handler.clone();
            tokio::spawn(async move {
                let mut reader = BufReader::new(reader);
                let seen_message = AtomicBool::new(false);
@@ -615,7 +610,7 @@ impl Peer {
                    match msg {
                        Ok(Some(body)) => {
                            seen_message.store(true, Ordering::Relaxed);
-                            dispatch(&inner, &*handler, &notif_tx, &body);
+                            dispatch(&inner, &notif_tx, &body);
                        }
                        Ok(None) => break,
                        Err(e) => {
@@ -788,16 +783,15 @@ async fn handle_request(inner: Arc<Inner>, handler: Arc<dyn Handler>, id: Value,
    }
 }

-fn dispatch(inner: &Arc<Inner>, handler: &dyn Handler, notif_tx: &std::sync::mpsc::Sender<Incoming>, body: &[u8]) {
+fn dispatch(inner: &Arc<Inner>, notif_tx: &std::sync::mpsc::Sender<Incoming>, body: &[u8]) {
    tracing::trace!(target: "ide_jsonrpc::wire", "<-- {}", String::from_utf8_lossy(body));
-    let mut msg: Value = match serde_json::from_slice(body) {
+    let msg: Value = match serde_json::from_slice(body) {
        Ok(v) => v,
        Err(e) => {
            tracing::warn!("jsonrpc: unparsable message: {e}");
            return;
        }
    };
-    handler.normalize_incoming(&mut msg);
    let Value::Object(mut obj) = msg else {
        tracing::warn!("jsonrpc: ignoring non-object message");
        return;
@@ -541,29 +541,3 @@ async fn output_before_the_handshake_is_reported_not_dropped() {
    assert!(lines.iter().any(|l| l == "python: not found"), "{lines:?}");
    assert!(lines.iter().any(|l| l.ends_with(". . .") && l.len() > 6), "{lines:?}");
 }
-
-#[tokio::test(flavor = "multi_thread")]
-async fn incoming_messages_are_normalized_before_dispatch() {
-    struct Server;
-    impl Handler for Server {
-        fn on_notification(&self, _: &str, _: Value) {}
-        fn on_request(&self, _: &str, params: Value) -> Result<Value, (i64, String)> {
-            Ok(params)
-        }
-    }
-    struct Client;
-    impl Handler for Client {
-        fn on_notification(&self, _: &str, _: Value) {}
-        fn on_request(&self, _: &str, _: Value) -> Result<Value, (i64, String)> {
-            Err((codes::METHOD_NOT_FOUND, "no".into()))
-        }
-        fn normalize_incoming(&self, message: &mut Value) {
-            if let Some(result) = message.get_mut("result") {
-                *result = json!("normalized");
-            }
-        }
-    }
-    let (client, _server) = pair(Arc::new(Client), Arc::new(Server));
-    let v: Value = client.request("echo", "raw", None).await.unwrap();
-    assert_eq!(v, json!("normalized"));
-}
@@ -40,7 +40,6 @@ const BUILTIN: &[(&str, &str)] = &[
    ("groovy", include_str!("../../../languages/groovy.toml")),
    ("haskell", include_str!("../../../languages/haskell.toml")),
    ("hcl", include_str!("../../../languages/hcl.toml")),
-    ("helm-template", include_str!("../../../languages/helm-template.toml")),
    ("html", include_str!("../../../languages/html.toml")),
    ("http", include_str!("../../../languages/http.toml")),
    ("ignore", include_str!("../../../languages/ignore.toml")),
@@ -80,7 +79,6 @@ const BUILTIN: &[(&str, &str)] = &[
    ("scala", include_str!("../../../languages/scala.toml")),
    ("scss", include_str!("../../../languages/scss.toml")),
    ("shellscript", include_str!("../../../languages/shellscript.toml")),
-    ("slint", include_str!("../../../languages/slint.toml")),
    ("sql", include_str!("../../../languages/sql.toml")),
    ("svelte", include_str!("../../../languages/svelte.toml")),
    ("swift", include_str!("../../../languages/swift.toml")),
@@ -549,7 +547,6 @@ mod tests {
        "Groovy",
        "Haskell",
        "Haxe",
-        "Helm Template",
        "HXML",
        "HTTP",
        "IDL",
@@ -843,30 +840,6 @@ mod tests {
        assert!(reg.is_framework_marker(&root.join("src/manage.py")));
    }

-    #[test]
-    fn helm_charts_make_yaml_and_notes_in_templates_folders_helm_templates() {
-        let reg = reg();
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path();
-        let detect = |file: &str| reg.detect(&root.join(file), None).as_str().to_owned();
-        std::fs::create_dir_all(root.join("charts/podinfo/templates/tests")).unwrap();
-        std::fs::create_dir_all(root.join("k8s/templates")).unwrap();
-        std::fs::write(root.join("charts/podinfo/Chart.yaml"), "apiVersion: v2\nname: podinfo\n").unwrap();
-        assert_eq!(detect("charts/podinfo/Chart.yaml"), "yaml");
-        assert_eq!(detect("charts/podinfo/values.yaml"), "yaml");
-        assert_eq!(detect("charts/podinfo/templates/deployment.yaml"), "helm-template");
-        assert_eq!(detect("charts/podinfo/templates/tests/connection.yml"), "helm-template");
-        assert_eq!(detect("charts/podinfo/templates/_helpers.tpl"), "helm-template");
-        assert_eq!(detect("charts/podinfo/templates/NOTES.txt"), "helm-template");
-        // No `Chart.yaml` / `Chart.yml` above this `templates` folder.
-        assert_eq!(detect("k8s/templates/deployment.yaml"), "yaml");
-        assert_eq!(detect("common.gotmpl"), "helm-template");
-        // Outside a chart, `.tpl` belongs to other template engines (Smarty, Terraform).
-        assert_ne!(detect("site/index.tpl"), "helm-template");
-        assert!(reg.is_framework_marker(&root.join("charts/podinfo/Chart.yaml")));
-        assert!(reg.is_framework_marker(&root.join("charts/podinfo/Chart.yml")));
-    }
-
    #[test]
    fn the_django_fixture_has_templates_and_a_page() {
        let reg = reg();
@@ -1073,7 +1046,6 @@ mod tests {
            ("icon.svg.import", "godot-resource"),
            ("export_presets.cfg", "godot-resource"),
            ("water.gdshader", "gdshader"),
-            ("app-window.slint", "slint"),
            ("notes.txt", "plaintext"),
        ];
        for (path, id) in cases {
@@ -223,8 +223,6 @@ impl ClientHandler {
        if self.server.running_gen(self.generation).is_some_and(|run| !run.caps.read().restriction.diagnostics()) {
            return;
        }
-        let mut params = params;
-        crate::virtual_doc::normalize_uris(&mut params);
        let params: lsp::PublishDiagnosticsParams = match serde_json::from_value(params) {
            Ok(p) => p,
            Err(e) => {
@@ -252,14 +250,7 @@ impl ClientHandler {
        {
            return;
        }
-        // A late answer for an older version of the text is shown, but isn't fresh (`check_files`).
-        let obsolete =
-            params.version.is_some_and(|v| mgr.docs.lock().values().any(|d| d.path == path && d.version > v));
-        let shown = if obsolete {
-            self.server.set_obsolete_diagnostics(path.clone(), params.diagnostics)
-        } else {
-            self.server.set_diagnostics(path.clone(), params.diagnostics)
-        };
+        let shown = self.server.set_diagnostics(path.clone(), params.diagnostics);
        mgr.emit_diagnostics(&self.server, path, shown, self.encoding());
    }

@@ -324,13 +315,11 @@ impl ClientHandler {
    }

    fn apply_edit(&self, mgr: &LspManager, params: Value) -> Result<Value, (i64, String)> {
-        let edit: lsp::WorkspaceEdit =
-            params.get("edit").cloned().ok_or_else(|| (codes::INVALID_PARAMS, "missing edit".to_owned())).and_then(
-                |mut e| {
-                    crate::virtual_doc::normalize_uris(&mut e);
-                    serde_json::from_value(e).map_err(|e| (codes::INVALID_PARAMS, e.to_string()))
-                },
-            )?;
+        let edit: lsp::WorkspaceEdit = params
+            .get("edit")
+            .cloned()
+            .ok_or_else(|| (codes::INVALID_PARAMS, "missing edit".to_owned()))
+            .and_then(|e| serde_json::from_value(e).map_err(|e| (codes::INVALID_PARAMS, e.to_string())))?;
        // Convert before calling the hook: it re-enters document sync.
        let edit = convert::workspace_edit(&mgr.conv(self.encoding()), edit);
        let applied = match mgr.apply_edit_hook() {
@@ -391,10 +380,6 @@ fn tsserver_ran_out_of_memory(text: &str) -> bool {
 }

 impl Handler for ClientHandler {
-    fn normalize_incoming(&self, message: &mut Value) {
-        crate::uri::encode_loose_file_uris(message);
-    }
-
    fn on_notification(&self, method: &str, params: Value) {
        let Some(mgr) = self.mgr.upgrade() else { return };
        match method {
@@ -239,9 +239,6 @@ impl LspManager {
        cancel: &CancellationToken,
    ) -> IdeResult<DocumentCheck> {
        let snap = self.snapshot(doc)?;
-        // The text may have changed before this call synced it (the file watcher reloaded it):
-        // only diagnostics published after the servers got the current text are fresh.
-        let changed = Some(changed.map_or(snap.changed, |c| c.max(snap.changed)));
        let deadline = tokio::time::Instant::now() + timeout;
        let left = || deadline.saturating_duration_since(tokio::time::Instant::now());
        let ready = tokio::select! {
@@ -809,21 +809,6 @@ impl LspManager {
            .map_err(|e| crate::rpc_err(&server.name, "java/projectConfigurationsUpdate", e))
    }

-    /// Asks jdtls to re-read library archives replaced in place (`openidea.java.refreshArchives`):
-    /// a SNAPSHOT installed again keeps its path, and JDT would keep showing the classes it read
-    /// from the old archive. Best-effort: skipped while jdtls is not already running.
-    pub async fn java_refresh_archives(&self, path: &Path, archives: &[PathBuf]) -> IdeResult<()> {
-        let java = LanguageId::new("java");
-        let Some(server) = self.servers_for(&java, path).into_iter().find(|s| s.name == SERVER) else {
-            return Ok(());
-        };
-        if server.running().is_none() {
-            return Ok(());
-        }
-        let archives = archives.iter().map(|a| Value::String(a.to_string_lossy().into_owned())).collect();
-        self.jdtls_command(path, "openidea.java.refreshArchives", archives).await.map(|_| ())
-    }
-
    /// Pause autobuild before resolving the launch classpath. That query takes the
    /// Java project's workspace scheduling rule, draining the interrupted autobuild.
    /// Keep this guard until Maven outputs have been copied out of JDT's reach.
@@ -120,8 +120,6 @@ struct DocState {
    compose_detected: bool,
    /// The notebook a code cell belongs to: synced through `notebookDocument/*`, not as a file.
    notebook: Option<PathBuf>,
-    /// When the servers last got new text (open or change): diagnostics published before are stale.
-    changed: std::time::Instant,
 }

 impl DocState {
@@ -160,8 +158,6 @@ struct DocSnap {
    language: LanguageId,
    text: Arc<DocText>,
    servers: Vec<Arc<Server>>,
-    /// [`DocState::changed`].
-    changed: std::time::Instant,
 }

 impl DocSnap {
@@ -241,9 +237,6 @@ pub struct LspManager {
    virtual_origins: Mutex<HashMap<String, ide_core::ServerId>>,
    /// Contents fetched for virtual URIs.
    virtual_docs: Mutex<HashMap<String, VirtualDocument>>,
-    /// Modification time of the archive behind a cached library class, so a jar
-    /// replaced in place (a SNAPSHOT installed again) is read again.
-    virtual_stamps: Mutex<HashMap<String, std::time::SystemTime>>,
    injections: injections::State,
    /// Open notebooks by path. Locked before `docs` when both are.
    notebooks: Mutex<HashMap<PathBuf, notebook::NotebookState>>,
@@ -511,7 +504,6 @@ impl LspManager {
            go_mod_checked: Mutex::new(HashSet::new()),
            virtual_origins: Mutex::new(HashMap::new()),
            virtual_docs: Mutex::new(HashMap::new()),
-            virtual_stamps: Mutex::new(HashMap::new()),
            injections: injections::State::default(),
            notebooks: Mutex::new(HashMap::new()),
        })
@@ -1178,7 +1170,6 @@ impl LspManager {
            servers: servers.iter().map(|s| Attached { server: s.clone(), opened_gen: None }).collect(),
            compose_detected,
            notebook: None,
-            changed: std::time::Instant::now(),
        };
        let compose_added = {
            let mut docs = self.docs.lock();
@@ -1226,7 +1217,6 @@ impl LspManager {
        let mut docs = self.docs.lock();
        let Some(d) = docs.get_mut(&doc) else { return };
        d.version = version as i32;
-        d.changed = std::time::Instant::now();

        // Servers that have this document open on their current instance.
        let targets: Vec<(Arc<Server>, Running, SyncKind, Encoding)> = d
@@ -1402,7 +1392,6 @@ impl LspManager {
            language: d.language.clone(),
            text: d.text.clone(),
            servers,
-            changed: d.changed,
        })
    }

@@ -1444,9 +1433,13 @@ impl LspManager {
        let params = serde_json::to_value(params).map_err(|e| IdeError::internal(e.to_string()))?;
        let stamp = self.injected_request_stamp(&params);
        let fut = async {
-            let mut value = t.run.peer.request::<Value, Value>(method, params, cancel.cloned()).await?;
-            virtual_doc::normalize_uris(&mut value);
-            serde_json::from_value(value).map_err(|e| RpcError::Protocol(format!("{method}: {e}")))
+            if t.server.name == "csharp-ls" {
+                let mut value = t.run.peer.request::<Value, Value>(method, params, cancel.cloned()).await?;
+                virtual_doc::normalize_csharp_uris(&mut value);
+                serde_json::from_value(value).map_err(|e| RpcError::Protocol(format!("{method}: {e}")))
+            } else {
+                t.run.peer.request::<Value, R>(method, params, cancel.cloned()).await
+            }
        };
        let result = match tokio::time::timeout(timeout, fut).await {
            Ok(r) => r.map_err(|e| rpc_err(&t.server.name, method, e)),
@@ -3206,44 +3199,14 @@ impl LspManager {
        Ok(found)
    }

-    /// Whether the archive behind a cached library class changed since it was read.
-    /// Stats the archive: call from a blocking worker.
-    pub fn library_class_changed(&self, uri: &str) -> bool {
-        let Some(stamp) = self.virtual_stamps.lock().get(uri).copied() else { return false };
-        virtual_doc::archive_modified(uri) != Some(stamp)
-    }
-
-    /// Archives behind cached library classes that changed since they were read.
-    /// Stats each archive: call from a blocking worker.
-    pub fn changed_library_archives(&self) -> Vec<PathBuf> {
-        let uris: Vec<String> = self.virtual_stamps.lock().keys().cloned().collect();
-        let mut archives: Vec<PathBuf> = uris
-            .iter()
-            .filter(|uri| self.library_class_changed(uri))
-            .filter_map(|uri| virtual_doc::archive(uri))
-            .collect();
-        archives.sort();
-        archives.dedup();
-        archives
-    }
-
    /// Contents of a virtual document, from the server that owns `uri`:
    /// `workspace/textDocumentContent` (LSP 3.18) when the server serves the
    /// scheme, jdtls' `java/classFileContents` for `jdt:` URIs. A `jar:` entry
    /// is read from its archive, a `jar:` class shown as its library source
    /// (see [`library_source`]) or else decompiled by the server. Cached.
    pub async fn virtual_document(&self, uri: &str) -> IdeResult<VirtualDocument> {
-        let cached = self.virtual_docs.lock().get(uri).cloned();
-        if let Some(d) = cached {
-            let stamp = self.virtual_stamps.lock().get(uri).copied();
-            let current = {
-                let uri = uri.to_owned();
-                tokio::task::spawn_blocking(move || virtual_doc::archive_modified(&uri)).await.ok().flatten()
-            };
-            if stamp.is_none() || stamp == current {
-                return Ok(d);
-            }
-            self.virtual_docs.lock().remove(uri);
+        if let Some(d) = self.virtual_docs.lock().get(uri) {
+            return Ok(d.clone());
        }
        let scheme = virtual_doc::scheme(uri).to_owned();
        let jar_class = scheme == "jar" && library_source::parse(uri).is_some_and(|e| e.entry.ends_with(".class"));
@@ -3387,18 +3350,11 @@ impl LspManager {
        if let Some(server) = server {
            self.virtual_origins.lock().entry(uri.to_owned()).or_insert(server);
        }
-        let stamp = virtual_doc::archive_modified(uri);
        let mut cache = self.virtual_docs.lock();
-        let mut stamps = self.virtual_stamps.lock();
        if cache.len() >= VIRTUAL_CACHE_LIMIT {
            cache.clear();
-            stamps.clear();
        }
        cache.insert(uri.to_owned(), doc.clone());
-        match stamp {
-            Some(stamp) => stamps.insert(uri.to_owned(), stamp),
-            None => stamps.remove(uri),
-        };
        doc
    }