dsh-office-tool

A DeepSeek Harness (dsh) plugin that gives the agent complete Office document capabilities — create, read, query, and edit .docx / .xlsx / .pptx — by driving the OfficeCLI binary, plus in-document preview in the dsh web sidebar through dsh-better-sidebar.

Everything renders with OfficeCLI's built-in high-fidelity HTML engine, so the agent and the user can see the document (via the sidebar preview) instead of guessing from the DOM — no Microsoft Office required.

Features

• 9 model-facing tools (office_create / get / query / set / add / remove / view / batch + office_cli passthrough), covering the full OfficeCLI command surface (move/swap/merge/dump/import/validate/raw/… via office_cli).
• Structured --json envelopes everywhere — success {success, data} / failure {success:false, error:{code, suggestion}}, with OfficeCLI's self-healing error codes surfaced to the model.
• Sidebar preview: opening a .docx / .xlsx / .pptx in better-sidebar renders it with OfficeCLI's HTML engine in an iframe (auto-reloads when the file changes). A dedicated 「Office 预览」tab runs officecli watch for live SSE-refreshing preview while the agent edits.
• Works headless too: the tools activate in any profile (no web UI needed); only the preview routes wait for a web server.

Prerequisites

• dsh installed and a working profile (the web profile for preview).
• OfficeCLI binary available (officecli install, or any PATH install). The plugin fails loud at load if it cannot resolve the binary.
• For the sidebar preview: dsh-better-sidebar installed in the same profile.

Install

# into your web profile (requires dsh-better-sidebar for the preview)
dsh plugin --profile web add dsh-better-sidebar
dsh plugin --profile web add dsh-office-tool

# restart `dsh web`, then hard-refresh the browser (Cmd/Ctrl+Shift+R)

Install from a local checkout with dsh plugin --profile web add ./dsh-office-tool, or build/attach it from a clone of this repository (the prepare script builds lib/ on install):

git clone https://github.com/rong-coder/dsh-office-tool.git
cd dsh-office-tool && pnpm install
dsh plugin --profile web add ./dsh-office-tool

Configuration

Override rows in your profile cordis.patch.yml (a patch replaces a row's whole config):

- id: office-tool
  config:
    command: 'C:\path\to\officecli.exe'   # binary name or absolute path (env DSH_OFFICECLI wins)
    timeoutMs: 60000
    maxOutputBytes: 16777216
- id: office-tool-preview
  config:
    preview:
      allowOutsideWorkspace: false        # allow rendering absolute paths outside the host cwd
    watch:
      enabled: true
      idleSeconds: 300

command accepts a bare name resolved on PATH, or an absolute path (Windows .exe). $DSH_OFFICECLI overrides the default 'officecli'.

Tools

OfficeCLI's path/selector syntax and error codes apply throughout — see officecli --help or officecli help <fmt> <verb> for details.

Sidebar preview

The client half registers, through ctx.betterSidebar:

• File viewer (office:officecli, exts docx/xlsx/pptx, priority: 100): opens the file in an iframe served by the host /office/preview route, which renders it with officecli view <file> html. A refresh button and a lightweight mtime probe keep it current as the agent edits. Conflicts with the bundled docx/xlsx/pptx viewer are resolved by priority (100 wins).
• 「Office 预览」tab: enter a document path and it starts officecli watch (host-managed, ephemeral port) and iframes the live preview; the watch process stops when the tab closes or the plugin unloads.

Host routes (registered only when ctx.webServer exists — never in headless):

• GET /office/preview?path=…&cwd=…&page=… — rendered HTML (probe=1 → {mtime}).
• GET /office/watch?path=…&action=open|close|status — JSON {url, port} for the live tab.

Repository layout

├── src/
│   ├── index.ts            # host plugin entry: OfficeService + tool registration
│   ├── service.ts          # argv construction, spawn, --json envelope parsing
│   ├── errors.ts           # OfficeError + officecli error-code mapping
│   ├── config.ts           # Config type + defaults + load-time validation
│   ├── paths.ts            # preview path resolution + workspace checks
│   ├── tools/              # office_create/get/query/set/add/remove/view/batch/cli
│   ├── preview/            # /office/preview route + watch process manager
│   └── client/             # client bundle: better-sidebar file viewer + live tab
├── tests/                  # unit, route-HTTP, and real-officecli integration tests
├── cordis.patch.yml        # dsh bundle manifest (plugin rows to insert)
├── tsdown.config.ts        # single build producing host + client bundles
└── package.json            # dsh.bundle + dsh.client manifests

Development

pnpm install
pnpm run typecheck
pnpm test                # unit + route tests; integration tests self-skip without officecli
pnpm run build           # lib/index.js (tools) + lib/preview.js (preview host) + lib/client.js (client bundle)

The integration tests run against a real officecli when the @officecli/officecli devDependency has downloaded its binary (create → add → get → view html).

Known Limitations and Deferred Work

• Live preview updates only on OfficeCLI mutations: officecli watch refreshes when officecli edits the document; files changed by other tools do not auto-push (the snapshot viewer's probe still reloads them).
• view screenshot needs a headless browser (Chrome/Edge/Chromium/Firefox or Playwright) installed on the host, like OfficeCLI itself.
• KaTeX CDN: rendered HTML with math formulas loads KaTeX from d.officecli.ai (jsdelivr fallback); without network, formulas degrade to monospace text. Documents without formulas are fully offline.
• Electron/desktop shell: the preview routes are served same-origin by the host; the Web UI (browser) is supported. If the app's CSP ever blocks the live-tab iframe (http://127.0.0.1:<port>), add frame-src via a host index tap or switch the tab to the host-proxied route.
• Tool file paths resolve against the host cwd (where dsh was launched). Relative paths in office_* tools are resolved there; the sidebar preview additionally honors better-sidebar's session cwd.