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Command Rail — DSH Plugin for DeepSeek Harness
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dsh-command-rail

Command Rail

DSH web plugin: a Codex-style command-history rail covering the WHOLE session. Walks the full durable history through the official client API (not just the ~50-event window the DOM keeps), so every user instruction gets its tick on the left edge of the conversation; hover previews the instruction, c

The plugin will be installed here. Keep web if you are unsure.

npx -y @deepseek-ai/dsh plugin --profile web add github:secyborg/dsh-command-rail#f0d256eb98dcc8855b9775d1afd7f56071d29e1d
READMECompatibilityVersions

Description

DSH web plugin: a Codex-style command-history rail covering the WHOLE session. Walks the full durable history through the official client API (not just the ~50-event window the DOM keeps), so every user instruction gets its tick on the left edge of the conversation; hover previews the instruction, click loads older pages via conversation.loadOlder() and jumps to the message.

Compatibility and provenance

Command Rail is published as dsh-command-rail and currently resolves to version 0.4.7. The Hub verifies its manifest and preserves the exact installation source for reproducible installs.

DSH compatibility
*
Runtime surfaces
web
Release source
github
Registry updated
8/26/2026

Versions

0.4.7stable
8/26/2026
0.4.0stable
8/26/2026
0.3.9stable
8/25/2026

Related plugins

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Latest
0.4.7
DSH
*
HMR
Process restart
Tree shaking
Safe tree shaking not declared
Unpacked size
Unavailable
Files
Unavailable
Surface
web
License
MIT
Source
github
GitHub
★ 0
Weekly downloads
0
Last push
8/26/2026
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README

dsh-command-rail

Codex 风格的「用户指令历史轨道」插件 for DSH。

会话区左缘出现一列低对比度短横条,每根对应当前会话中的一条用户指令—— 覆盖整个会话的完整历史,而不只是当前渲染出来的最近几十条:

  • 全量数据 — 通过官方客户端 API(connection.api.sessions.history + beforeSeq 翻页)走完整持久历史;DOM 只保留最近 ~50 个事件的窗口,轨道不受此限
  • 悬浮 — 横条变宽变亮,Popover 显示「第 N / M 条指令」+ 指令摘要(取自历史记录, 未加载进 DOM 的旧指令同样有摘要)
  • 点击 — 平滑滚动定位到该条指令;若目标不在当前窗口内,先通过 sessions.scope(id).conversation.loadOlder() 逐页加载更早历史,直到该消息进入 DOM 再跳转并高亮
  • 当前位置 — 阅读位置对应的横条保持品牌色高亮(DOM 行与历史条目按文本签名 对齐,容忍截断差异)
  • 会话切换 — 订阅 sessions 列表自动检测,切换即重走历史
  • 降级 — 历史 API 不可用时退回 DOM 采集模式,轨道不会消失
  • 自适应 — 指令多时逐级压缩条高/间距(最低 2px);超过 400 条时均匀采样

实现要点

  • 渲染行锚定 MessageItem css-module 稳定后缀 [class*="_userRow"](_userStack 子节点双重校验,排除 pending-steering 瞬态行),构建哈希变化不影响识别
  • 仅使用官方服务接口(sessions / connection),不做任何内部 patch
  • 纯逻辑函数全部导出供测试:test/rail-logic.test.mjs(35 项断言)

安装

dsh plugin --profile desktop add dsh-command-rail-0.3.1.tgz

新插件首次安装需要重启 DSH Desktop;已装插件的更新走 HMR 热生效 (版本号不变时 pnpm 会跳过重装,务必升版本号)。

测试

node test/rail-logic.test.mjs