conversation-rollback

Codex-style conversation rollback, "edit input, then re-generate", and a right-edge session outline rail for the DeepSeek Harness (DSH) Web UI.

• v1.3.0 — rollback + edit-and-resend (the package's original scope).
• v1.4.0 — merges the standalone dsh-session-toc outline rail into this package: one plugin, one client bundle, one install.
• v1.4.1 — client compatibility with DSH 0.1.2-rc.1: the Chat target is read through the session-scope chat hook (useChat), and the user-node takeover installs from an entry-mutation watch instead of a one-shot lookup at apply time.
• v1.4.2 — host compatibility with DSH 0.1.5-rc.1: the physical-row codec is vendored in lib/chunk-rows.js, stored sessions are read through the persistence handle seam (open(id, 'read')), the live durable cursor is rewound on persistence.tracker.writers (its observedLength guard included), and the event log is read from session.log.
• v1.5.0 — a switch on the DSH settings General page turns the outline rail (and its ☰ header button) on or off; the preference is a user setting in the conversation-rollback namespace, persisted in settings.yaml.
• v1.5.1 — the settings row and the rail's copy follow the harness language switch at runtime.

English · 中文

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English

Features

• Edit input: the entry point lives in the user message bubble action row, next to the copy button (✎). Clicking it opens an inline editor. On save, the host truncates the session log to just before that turn and pushes the edited text through the Agent inbox as a new message so the model regenerates the answer. The original reply and all later turns are deleted.
• Rollback to here: the entry point lives at the bottom of an assistant answer, next to the "branch in new chat" button (↩, with a second-click confirmation). It deletes every message after that turn and continues the conversation in place.
• Session outline rail (new in 1.4.0): a right-edge table of contents for the conversation.
  • Collapsed: a 26px strip pinned to the right edge of the message column — one tick per prompt you sent; the highlighted (blue) tick is the turn currently under the top of the viewport.
  • Expanded (hover, click ☰ on the strip, or Ctrl/Cmd+Shift+O to pin): lists every prompt you sent as a row — with its turn number, timestamp and a steer marker for mid-run steering messages. Click a row (or a tick) to scroll that turn into view and flash-highlight it.
  • Search: filters the loaded window; if there is no hit it automatically pages backwards through history (session.loadOlder(), up to 40 pages) until a match loads or history ends.
  • Only user / steering chat nodes enter the outline: blank input, image-only input, tool rows and injected context are excluded.
  • The rail anchors to the geometry of the conversation column ([data-conversation-scroll]), not the window, and follows it with a ResizeObserver — so side panels that squeeze the column (dsh-better-sidebar, DSH's own details column, side-card bottom panels) never slide over it, and there is no z-index war.
  • Pinned state persists in localStorage['dsh-session-toc:pinned'] (the same key the standalone plugin used, so existing pinned state survives).
  • The whole rail can be switched off in Settings → General → Session outline. Off means the rail and its ☰ button are both gone; the switch is the only way back. The choice is a user setting — stored under conversation-rollback in the harness home's settings.yaml, shared by the web and desktop profiles — not a per-browser toggle. If the settings service is unreachable the rail keeps its default (on) and the row says so, so a missing settings service can never hide the feature by accident. Both the row and the rail follow the harness language switch without a reload.
• The latest completed turn only shows Edit input; rollback is not offered there.
• Editing inputs that contain images is not supported yet.
• Actions are unavailable while the session is running, for subagent sessions, and when an unfinished turn exists.

Both rollback operations are destructive and cannot be undone: the original reply and all subsequent messages are permanently removed.

Host endpoint

POST /api/conversation-rollback

• Rollback: { "sessionId": "...", "atSeq": <any seq inside a completed turn> }
• Edit: { "operation": "edit", "sessionId": "...", "turn": <turn number>, "text": "..." }
• Read the outline switch: { "operation": "settings.get" } → { "ok": true, "outline": true, "revision": 0 }
• Write it: { "operation": "settings.update", "patch": { "outline": false }, "expectedRevision": 0 } → the same shape, or { "ok": false, "code": "settings-conflict", ... } when the namespace moved.

An operation that is none of these still dispatches to rollback, so existing callers are unaffected. settings.* answers settings-unavailable on a build whose settings service is absent — the rail then keeps its default (on).

Requirements

• A DSH installation with the web profile (dsh web) or the DSH Desktop app (which uses the desktop profile).
• pnpm available on your PATH for dsh plugin management.
• git is required for the GitHub install and the local clone; npm is only required for the npm pack option.

Installation

1. Pick your profile first

desktop and web are two independent compositions, each with its own package.json + node_modules. If the plugin never appears, the most likely reason is that it was installed into the other one.

To detect the profile the running web process uses, fetch its root page and look for the Desktop marker:

# bash / macOS / Linux — replace <port> with the URL from the env var DSH_WEB_URL
curl -s "http://127.0.0.1:<port>/" | grep -o dsh-plugin-desktop

# PowerShell / Windows
(Invoke-WebRequest "http://127.0.0.1:<port>/" -UseBasicParsing).Content | Select-String "dsh-plugin-desktop"

A hit means the Desktop shell hosts this process — use --profile desktop. No hit means a plain dsh web process — use --profile web.

2. Install from GitHub (recommended)

dsh plugin --profile <web|desktop> add github:sharedcare/dsh-conversation-rollback#<sha-or-tag>

dsh plugin adds the package to the selected profile and automatically registers the bundle patch layer. Pinning a commit or tag is recommended so a later push cannot silently change the code that is actually running; the v1.4.0 tag points at commit 5de8731.

For a fork, replace sharedcare with your GitHub username or use the full repository URL, with the pin appended to the git URL:

dsh plugin --profile <web|desktop> add "git+https://github.com/<owner>/dsh-conversation-rollback.git#<sha-or-tag>"

The merged bundle is committed and the package declares no prepare script, so a github: install pulls the source and runs no build — no pnpm allowBuilds authorization is needed.

3. Install from a local clone or tarball

For development, or if you prefer to build the package yourself:

git clone https://github.com/sharedcare/dsh-conversation-rollback.git
cd dsh-conversation-rollback

Option A — link this checkout directly into the profile (useful while developing; edits take effect after pnpm run build + a page refresh):

dsh plugin --profile <web|desktop> add link:$PWD

Option B — install a packed tarball:

npm pack
dsh plugin --profile <web|desktop> add ./conversation-rollback-1.5.1.tgz

(The filename is whatever npm pack prints — 1.5.1 for the current version.)

4. Migrating from 1.3.0 (or from the standalone session-toc plugin)

• If you previously installed the standalone dsh-session-toc plugin, remove it, or the merged package will mount two rails:

  dsh plugin --profile <web|desktop> remove dsh-session-toc
  

• With a web profile installed before the bundle-patch era, the profile's cordis.patch.yml ($DSH_HOME/profiles/web/cordis.patch.yml, default ~/.dsh/profiles/web/cordis.patch.yml) may still contain a hand-written - insert: conversation-rollback row. Remove it — the installed bundle patch adds that entry automatically and the manual row duplicates it.

• Upgrading a git/link-based install: remove it, then add again with the desired commit/tag as in step 2.

5. Activate and verify

1. Restart the DSH Web process / Desktop so the host route and browser client are loaded. (Only adding or removing plugins needs a restart; re-served lib/client.js is read per request.)

2. Web profile:

   dsh plugin --profile web list
   dsh web --dump-config | grep conversation-rollback
   

   The dump should show the bundle section and an entry with id: conversation-rollback.

3. Desktop app (no --dump-config on the shell — probe the served bundle directly from the running page; dsh-toc-root is the rail's stylesheet root class). The module loader serves one combo URL per graph row (/plugins/??<id>/client.js&rev=<rev>, rev from window.__DSH_BOOT__), so ask the page instead of guessing the path:

   // DevTools console on the DSH page (the page already holds the auth cookie)
   await fetch(__DSH_BOOT__.entries.find(e => e.id === 'conversation-rollback').url)
     .then(r => r.text())
     .then(t => ({ status: 200, hasRailCss: t.includes('dsh-toc-root'), bytes: t.length }))
   

   Expect hasRailCss: true. If the rail is missing but the rollback buttons work, the client bundle is stale — hard-refresh the browser page and retry.

Uninstall

dsh plugin --profile <web|desktop> remove conversation-rollback

Restart the DSH Web process / Desktop afterwards.

Repository layout and build

The module loader serves one client bundle per plugin entry (/plugins/<id>/client.js), and inside a factory require only resolves the shared module table (react, react-dom/client, the injected @deepseek-ai/*). Two features therefore cannot stay two bundles — src/ holds the hand-written inputs and lib/ the committed product.

File	Role
src/client.rollback.js	rollback client bundle (upstream code + the single FORK DEVIATION marker below)
src/session-toc.js	outline rail factory body (bundle shell stripped)
lib/client.js	product of pnpm run build — do not edit by hand
lib/index.js	host side (route, rewrite, live surgery, settings namespace)
lib/chunk-rows.js	vendored port of dsh-session's internal physical-row codec
tools/merge-client.mjs	splice / unsplice tool
test/chunk-rows.mjs	host codec round-trip test (pnpm test)
test/host-route.mjs	host-half route + settings-namespace test (pnpm test)
test/host-stubs.mjs	in-memory import stubs the host test loads through a module hook
test/smoke.mjs	browserless client smoke test (pnpm test)

pnpm run build        # src/client.rollback.js + src/session-toc.js -> lib/client.js
pnpm test             # node --check lib/*.js + browserless smoke test
pnpm run build:strip  # inverse: lib/client.js -> src/client.rollback.js

Why the rail is wrapped in its own IIFE: both halves declare function apply in the factory scope. A plain concatenation is legal JavaScript where the later declaration silently wins — the rollback half would stop registering its three slot entries without raising an error. build is not an npm lifecycle script, so installing the package never triggers it (only prepare would, and this package deliberately has none).

Why the product is committed: github: installs fetch the source and do not build it, so either the package provides a self-contained prepare (users would have to approve it via allowBuilds in the profile pnpm-workspace.yaml — effectively authorizing code execution) or it ships built output. This package ships built output: zero build, zero approval, .gitignore explicitly refuses to ignore lib/.

The one deviation from upstream is marked in src/client.rollback.js (FORK DEVIATION): the injected <style> carries data-plugin / data-plugin-css — the only attributes dsh-client-hmr matches to reclaim a plugin's stylesheet on a hot swap. Without them every reload leaves an extra stale copy of the rollback CSS.

Keeping up with lib/client.js edits made elsewhere: merge and strip are exact inverses (round trip is byte-identical), and the generated regions are framed by /* == session-toc: BEGIN/END ... == */ markers, so a conflict can be moved out of the way first:

git merge <upstream>                          # conflict lands in lib/client.js
node tools/merge-client.mjs --strip           # peel the generated regions off
# resolve the conflict in src/client.rollback.js (or take upstream's version)
pnpm run build && pnpm test

The generator fails loudly when the whole-line anchors (exports.apply = apply; / exports.name = "conversation-rollback";) are missing or duplicated, rather than producing a half-featured bundle, and the line anchors guarantee the upstream file's indentation survives. smoke.mjs pins the merge itself: both halves register, the rollback user-node takeover keeps priority: -1, the rail's projection and backwards paging work, a prepend keeps the reader's viewport offset, a throwing rail cannot take rollback down, and both stylesheets carry the HMR-reclaimable ownership marker.

Desktop: install-recovery ledger note

The Desktop host keeps an install-recovery ledger at <DSH Desktop data>/plugin-install-recovery/state.json (macOS: ~/Library/Application Support/DSH Desktop/..., Windows: %APPDATA%\DSH Desktop\...). One installation stops at phase: "awaiting-restart"; the next one is then blocked with another plugin install recovery transaction is pending, and the only way to clear it is to restart Desktop (startup health check) or roll the transaction back in the recovery page — there is no CLI commit command.

If you need to get past that without a restart, point that one call at a different WAL location: the validation only requires the file to be named state.json inside a directory named plugin-install-recovery (the parent's parent is arbitrary, see install-recovery-BD5jkQTK.js:121-129). The trade-off: this installation does not enter the app's regular ledger and will not be rolled back automatically.

Troubleshooting

• If "Save and regenerate" fails with Cannot read properties of undefined (reading 'adapterDefaults'), the live Agent still cached state from the truncated log. Restart the Web process so the current lib/index.js is loaded; this version resets the session request/context folds, derived message caches, agent.requestHeaderLogged, and runtime-context projections after splicing.
• If the buttons do not appear after installation, restart DSH Web, run the verification commands above, then hard-refresh the browser page.
• If the rail is missing and /plugins/conversation-rollback/client.js serves 200 but contains no dsh-toc-root, the served bundle predates 1.4.0 — reinstall the new version and restart.
• If the rail fails to mount, a red diagnostic bar (dsh-toc-bar) appears at the bottom-left of the page with the error message; the rollback half stays usable (the rail mounts in its own try/catch).
• If the rail disappeared after switching it off and the settings row is not reachable (older build, or the settings surface is broken), the preference is still editable directly: set conversation-rollback: { outline: true } in the harness home's settings.yaml, or POST {"operation":"settings.update","patch":{"outline":true}} to /api/conversation-rollback from the GUI's own origin.
• If dsh plugin add fails for a git-hosted fork that adds a prepare/postinstall script, follow the allowBuilds hint printed by pnpm and add the exact key to the profile's pnpm-workspace.yaml, then re-run the install. The upstream package has no build scripts, so the standard GitHub install needs no extra approval.

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中文

功能

• 修改输入：入口在用户输入气泡的操作行里，紧挨着复制按钮（✎）。 点击后弹出内联编辑框；保存时宿主会把日志截断到该轮之前，再通过 Agent inbox 以新消息驱动模型重新生成。原回复和后续轮次都会被删除。
• 回退到此：入口在助手回答尾部的操作行里，紧挨着「在新对话中 分支」按钮（↩，需二次点击确认）。删除该轮之后的所有消息并原地继续。
• 会话目录（outline rail，1.4.0 新增）：消息流右缘的会话目录。
  • 收起态：26px 窄条贴消息列右缘，每根刻度 = 你发过的一条提问；蓝色刻度 表示当前视口顶部所在的轮次。
  • 展开态（悬停 / 点窄条上的 ☰ / Ctrl/Cmd+Shift+O 固定展开）：按轮次 列出你发过的每条提问——含轮次号、时间戳，中途引导（steer）消息带 steer 标记。点击行（或刻度）即滚动到那一轮并闪一下高亮。
  • 搜索：在已加载窗口内过滤；没有命中就自动向更早翻页 （session.loadOlder()，上限 40 页）直到匹配出现或历史到底。
  • 只收 user / steering 两类 Chat Node：空白输入、纯图片输入、工具行、 注入上下文都不进目录。
  • 定位基准是会话列（[data-conversation-scroll]）的几何而不是窗口， 并用 ResizeObserver 跟随——被侧栏/详情列/侧卡底部面板压缩列宽时 rail 跟着移动而不被压住，也不需要抢 z-index。
  • 固定状态存在 localStorage['dsh-session-toc:pinned']（沿用旧独立插件 的 key，合并前固定过的状态继续生效）。
  • 整个 rail 可以在设置 → 通用 → 会话大纲里关掉。关掉后 rail 与 ☰ 按钮 一起消失，开关是唯一的回去路径；它是一项用户设置——存在 harness home 的 settings.yaml 的 conversation-rollback 段，web 与 desktop profile 共用 ——不是单浏览器开关。设置服务不可达时 rail 保持默认（开）并在行内说明， 绝不会因为读不到设置就把功能藏掉。开关行与 rail 本身都跟随 harness 的 语言切换，无需刷新。
• 最新的已完成轮次只显示「修改输入」，不显示回退。
• 包含图片的输入暂不支持修改。
• 会话运行中、子代理会话、存在未结束回合时不可操作。

两种回退操作都是不可撤销的破坏性操作：原回复及其后的所有消息会被永久 删除。

端点

POST /api/conversation-rollback

• 回退：{ "sessionId": "...", "atSeq": <完成轮次内任一 seq> }
• 修改：{ "operation": "edit", "sessionId": "...", "turn": <turn number>, "text": "..." }
• 读大纲开关：{ "operation": "settings.get" } → { "ok": true, "outline": true, "revision": 0 }
• 写大纲开关：{ "operation": "settings.update", "patch": { "outline": false }, "expectedRevision": 0 } → 同一形状；命名空间已被别处改动时返回 { "ok": false, "code": "settings-conflict", ... }。

以上都不是的 operation 仍按回退分发，既有调用方不受影响。宿主没有设置服务时 settings.* 返回 settings-unavailable，rail 保持默认（开）。

环境要求

• 可正常启动 web profile 的 DSH 环境（dsh web），或 DSH Desktop 应用（使用 desktop profile）。
• PATH 中有 pnpm，供 dsh plugin 管理插件使用。
• GitHub 安装和本地 clone 需要 git；只有使用 npm pack 方式时才需要 npm。

安装

1. 先确认你在用哪个 profile

desktop 与 web 是两份独立组合，各有自己的 package.json + node_modules。装完不生效，最常见的原因就是把插件装进了另一份。

探测当前运行进程使用的 profile——抓首页找 Desktop 标记：

# bash / macOS / Linux — <port> 替换成 DSH_WEB_URL 里的端口
curl -s "http://127.0.0.1:<port>/" | grep -o dsh-plugin-desktop

# PowerShell / Windows
(Invoke-WebRequest "http://127.0.0.1:<port>/" -UseBasicParsing).Content | Select-String "dsh-plugin-desktop"

命中说明该进程由 Desktop 外壳承载——用 --profile desktop；没有命中说明 是普通的 dsh web 进程——用 --profile web。

2. 从 GitHub 安装（推荐）

dsh plugin --profile <web|desktop> add github:sharedcare/dsh-conversation-rollback#<sha-or-tag>

dsh plugin 会把包加入所选 profile，并自动注册 bundle patch 层。建议锁 commit 或 tag，避免后续推送悄悄改变实际运行的代码；v1.4.0 tag 指向 commit 5de8731。

维护自己的 fork 时，把 sharedcare 换成你的 GitHub 用户名，或使用完整 仓库地址（锁点追加在 git URL 末尾）：

dsh plugin --profile <web|desktop> add "git+https://github.com/<owner>/dsh-conversation-rollback.git#<sha-or-tag>"

合并产物已提交，且本包不声明 prepare 脚本，所以 github: 安装拉取 源码但不会运行构建——不需要 pnpm allowBuilds 授权。

3. 从本地克隆或 tarball 安装

适合二次开发，或希望自行打包的场景：

git clone https://github.com/sharedcare/dsh-conversation-rollback.git
cd dsh-conversation-rollback

方式 A：直接把当前 checkout 链接进 profile（适合边改边调试；改动后执行 pnpm run build 再刷新页面即可）：

dsh plugin --profile <web|desktop> add link:$PWD

方式 B：先打包，再安装生成的 tarball：

npm pack
dsh plugin --profile <web|desktop> add ./conversation-rollback-1.5.1.tgz

（文件名以 npm pack 输出为准——当前版本是 1.5.1。）

4. 从 1.3.0 升级（或从独立 session-toc 插件迁移）

• 之前单独装过独立版 dsh-session-toc 的话务必先卸掉，否则合并包会 挂出两条目录 rail：

  dsh plugin --profile <web|desktop> remove dsh-session-toc
  

• web profile 若在 bundle patch 时代之前装过：profile 的 cordis.patch.yml（$DSH_HOME/profiles/web/cordis.patch.yml，默认 ~/.dsh/profiles/web/cordis.patch.yml）里可能还留有旧方案的手工 - insert: conversation-rollback 行——删掉；安装后的 bundle patch 会 自动插入该条目，手工行会和它重复。

• 基于 git/link 安装的升级：先 remove，再按第 2 步用目标 commit/tag 重新 add。

5. 启用并验证

1. 重启 DSH Web 进程 / Desktop，以加载 host 路由和浏览器端 client。（只有 新增/删除插件需要重启；lib/client.js 是宿主按请求读盘的，改产物 不需要重启。）

2. web profile：

   dsh plugin --profile web list
   dsh web --dump-config | grep conversation-rollback
   

   配置 dump 中应出现 bundle 分节，以及 id: conversation-rollback 条目。

3. Desktop（外壳没有 --dump-config——在运行中的页面里直接探测被服务的 bundle；dsh-toc-root 是 rail 样式表的根类名）。模块加载器每个 entry 只服务一个 combo URL（/plugins/??<id>/client.js&rev=<rev>，rev 取自 window.__DSH_BOOT__），所以不要猜路径，问页面：

   // DSH 页面上的 DevTools 控制台（页面本身已带 auth cookie）
   await fetch(__DSH_BOOT__.entries.find(e => e.id === 'conversation-rollback').url)
     .then(r => r.text())
     .then(t => ({ status: 200, hasRailCss: t.includes('dsh-toc-root'), bytes: t.length }))
   

   期望 hasRailCss: true。若回退按钮正常但 rail 缺失，说明客户端 bundle 是旧版——强制刷新浏览器页面后再试。

卸载

dsh plugin --profile <web|desktop> remove conversation-rollback

卸载后重启 DSH Web 进程 / Desktop。

代码布局与构建

模块加载器每个插件 entry 只服务一个客户端 bundle （/plugins/<id>/client.js），factory 里的 require 只能解析共享模块表 （react、react-dom/client、被 inject 的 @deepseek-ai/*），所以两个功能 不可能留成两个 bundle——src/ 是手写源码，lib/ 是已提交的产物。

文件	角色
src/client.rollback.js	rollback 的 client bundle（上游原文 + 下方唯一一处 FORK DEVIATION）
src/session-toc.js	rail 的 factory body（外壳已剥掉）
lib/client.js	pnpm run build 的产物，不要手改
lib/index.js	宿主半（路由、重写、live 手术、设置命名空间）
lib/chunk-rows.js	内置移植的 dsh-session 内部物理行编解码器
tools/merge-client.mjs	拼接 / 反拼接工具
test/chunk-rows.mjs	宿主 codec 往返测试（pnpm test）
test/host-route.mjs	宿主半身路由 + 设置命名空间测试（pnpm test）
test/host-stubs.mjs	宿主测试通过 module hook 加载的内存 import 桩
test/smoke.mjs	无浏览器冒烟测试（pnpm test）

pnpm run build        # src/client.rollback.js + src/session-toc.js -> lib/client.js
pnpm test             # node --check lib/*.js + 无浏览器冒烟
pnpm run build:strip  # 反操作：lib/client.js -> src/client.rollback.js

rail 为什么要包进自己的 IIFE：两半都在 factory 作用域里声明 function apply，裸拼接是合法 JavaScript 且后声明者静默胜出—— rollback 的三处 slot 注册会直接消失，不抛任何错。build 不是 npm 生命 周期脚本，安装本包不会触发（会被触发的只有 prepare，本包故意没有）。

产物为什么要入库：github: 安装拉的是源码且不会运行 build，作者要么 提供自包含的 prepare（用户还得在 profile 的 pnpm-workspace.yaml 里写 allowBuilds: { conversation-rollback: true } 才允许跑——等于授权该包在用户机器上执行代码），要么直接分发产物。这里选 后者：零构建、零授权，.gitignore 明确写了不许忽略 lib/。

与上游的唯一偏差在 src/client.rollback.js（标了 FORK DEVIATION）：给它 注入的 <style> 补上 data-plugin / data-plugin-css——dsh-client-hmr 热替换只回收这两个属性匹配的样式表，不打标记每次重建都会多留一份旧 CSS。

lib/client.js 被别处改过时：merge 与 strip 是精确互逆（往返字节一致）， 生成段用 /* == session-toc: BEGIN/END ... == */ 成对标记框住，冲突可以 整体挪出这个特性：

git merge <上游>                        # 冲突落在 lib/client.js
node tools/merge-client.mjs --strip     # 先摘掉生成段，冲突面缩回纯 rollback
# 在 src/client.rollback.js 上解决冲突（或直接取上游版本），然后：
pnpm run build && pnpm test

生成器在锚点（exports.apply = apply; 与 exports.name = "conversation-rollback"; 的整行）缺失或不唯一时报错 退出，不会产出一个少一半功能的 bundle；整行锚点也保证不会吞掉上游那行的 缩进。smoke.mjs 钉住合并本身：两半各自的注册都在、rollback 的 user 节点接管仍是 priority: -1、rail 的目录投影与向前翻页正常、prepend 时 保持读者视口位置、rail 抛错不拖垮 rollback、两份样式都带 HMR 可回收的 归属标记。

桌面端：安装恢复账本注意事项

Desktop 宿主维护一个安装恢复账本，位置在 <DSH Desktop 数据目录>/plugin-install-recovery/state.json（macOS： ~/Library/Application Support/DSH Desktop/...；Windows： %APPDATA%\DSH Desktop\...）。一次安装会停在 phase: "awaiting-restart"，下一次安装会被 another plugin install recovery transaction is pending 挡下，而结清只能 靠重启 Desktop（启动健康确认）或在恢复页回滚——没有 CLI 提交命令。

需要绕开而不重启时，可以给那一次调用换 WAL 位置：校验只要求文件名为 state.json、父目录名为 plugin-install-recovery，再往上的父级随意（见 install-recovery-BD5jkQTK.js:121-129）。代价是这次安装不进应用的固定 账本，不会被自动回滚。

故障排查

• 若「保存并重新生成」后出现 Cannot read properties of undefined (reading 'adapterDefaults')，说明 live Agent 仍缓存了被截断掉的 request/header 状态。重启 Web 进程加载当前 lib/index.js；该版本会在 拼接日志后重置 session 的 request/context fold、派生消息缓存、 agent.requestHeaderLogged 和 runtime-context 投影。
• 安装后看不到按钮：重启 DSH Web，执行上面的验证命令，然后强制刷新浏览器 页面。
• rail 缺失但 /plugins/conversation-rollback/client.js 返回 200 且内容里 搜不到 dsh-toc-root：服务的是 1.4.0 之前的旧 bundle——重新安装新版本 并重启。
• rail 挂载失败时页面左下角会出现红色诊断条（dsh-toc-bar）显示错误 信息；rollback 半身仍可用（rail 在自己的 try/catch 中挂载）。
• 关掉 rail 之后找不到设置里的那一行（旧版本，或设置界面本身坏了）时，偏好 仍可直接改：在 harness home 的 settings.yaml 里写 conversation-rollback: { outline: true }，或从 GUI 自己的源向后端 /api/conversation-rollback POST {"operation":"settings.update","patch":{"outline":true}}。
• 如果你的 fork 新增了 prepare/postinstall 脚本，dsh plugin add 安装 git 依赖时被 pnpm 拦截，请按 pnpm 打印的提示把对应 key 加入 profile 的 pnpm-workspace.yaml 的 allowBuilds，再重新执行安装。上游包没有构建 脚本，因此标准 GitHub 安装不需要额外放行。

Repository

• https://github.com/sharedcare/dsh-conversation-rollback
• License: MIT