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A VCS-aware file viewer for DeepSeek Harness — its own "Filestab" tab in the right column, alongside the built-in file browser DeepSeek logo
Features
Live change tracking (jj or git) with file diffs rendered side-by-side or unified depending on pane width:
filestab file browser with per-folder change rollups, per-file status markers, and the diff of a changed file
filestab side-by-side diff of the same changed file, the column in fullscreen
Markdown with task lists, syntax highlighting, and mermaid diagrams:
filestab rendering a markdown file: task lists, a highlighted TypeScript code fence, and a mermaid diagram in a sealed frame
Two clicks to start a prompt about a specific location in a file:
clicking a character in the raw view: the head row shows the exact @path:line:col token, Add ref to chat inserts the ref into the composer, the agent changes exactly that number, and the diff shows the result
Install
dsh plugin --profile web add filestab
Install it into the web profile, the one that runs the GUI.
Development
To test a local checkout instead of the published package, install it directly: dsh plugin --profile web add /path/to/filestab
For a source checkout or local path install, run pnpm install && npm run build first so the bundle exists.
pnpm install # a local (uncommitted) .npmrc may pin the pnpm store repo-locally
npm run build # tsc (host + client) + tsdown bundle
npm test # build + the full suite (pure parser tests + real jj/git I/O when the binaries are on PATH)
npm run e2e # browser journeys against a sandboxed dsh instance
CHANGELOG.md · Releases.
