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Mermaid Zoom — DSH Plugin for DeepSeek Harness
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dsh-mermaid-zoom

Mermaid Zoom

Mermaid diagram enhancement for the DeepSeek Harness (DSH) web GUI: Ctrl/Cmd+wheel zoom, drag to pan, double-click reset, hover toolbar with zoom controls and 2x PNG copy. Pure client-side DOM enhancement.

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

npx -y @deepseek-ai/dsh plugin --profile web add dsh-mermaid-zoom@1.0.3
READMECompatibilityVersions

Compatibility and provenance

Mermaid Zoom is published as dsh-mermaid-zoom and currently resolves to version 1.0.3. The Hub verifies its manifest and preserves the exact installation source for reproducible installs.

DSH compatibility
*
Runtime surfaces
web
Release source
npm
Registry updated
9/14/2026

Versions

1.0.3
stable
9/14/2026
1.0.2stable
8/20/2026

Related plugins

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Latest
1.0.3
DSH
*
HMR
Process restart
Tree shaking
Safe tree shaking not declared
Unpacked size
21.1 kB
Files
7
Surface
web
License
MIT
Source
npm
GitHub
★ 0
Weekly downloads
0
Last push
9/14/2026
View source ↗
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README

dsh-mermaid-zoom

Mermaid 图交互增强插件，适用于 DeepSeek Harness (DSH) Web GUI。

给 GUI 中 dsh-genui 渲染的 mermaid 图（[data-genui-mermaid] 容器）加上：

  • 🔍 Ctrl/Cmd + 滚轮缩放（不干扰页面正常滚动）
  • ✋ 拖拽平移
  • 🖱 双击重置视图
  • 🧰 hover 工具栏：＋ 放大 / － 缩小 / ⟳ 重置
  • 📋 复制图片：导出 2x 白底 PNG，剪贴板优先，失败自动下载

纯浏览器端 DOM 增强，不依赖任何宿主服务；MutationObserver 自动接管流式渲染完成的图。缩放范围 0.4x – 10x。

安装

方式一：官方一键安装（推荐）

包声明了 dsh.bundle，通过 dsh 官方 CLI 安装会自动挂载到 profile 的 bundle 栈，无需手改配置文件：

dsh plugin --profile web add dsh-mermaid-zoom

安装完成并重启 dsh web 即生效（dsh 不在 PATH 时用 npx -y @deepseek-ai/dsh plugin ...）。

方式二：手动挂载（高级）

也可以只把这个包作为普通依赖装进 profile，再手写一条 insert 记录：

cd ~/.dsh/profiles/web   # 或你实际的 profile 目录
pnpm add dsh-mermaid-zoom

然后在 cordis.patch.yml 中插入：

- insert:
    - id: dsh-mermaid-zoom
      name: 'dsh-mermaid-zoom'

⚠️ 两种方式二选一：如果已经用「方式二」挂载过，改用「方式一」前请先从 cordis.patch.yml 删除那行 insert，避免双挂载（两份客户端、两份工具栏处理逻辑）。

开发

git clone https://github.com/evanfang0054/dsh-mermaid-zoom.git
cd dsh-mermaid-zoom
npm test       # node --test tests/

结构：

  • lib/index.js — 宿主半身（无操作，能力全在客户端）
  • lib/client.js — 客户端半身（DOM 增强、事件绑定、PNG 导出）
  • lib/core.mjs — 纯逻辑核心（不触碰 DOM，可被 node --test 直接测）

License

MIT