ui-filesystem

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A dsh plugin that adds @ project file/directory suggestions to the chat composer: type @ to browse the current project (the session's working directory), pick a file or directory, and the draft gains a @path reference that ships to the model verbatim.

Built as a fully out-of-tree plugin — the deepseek-harness source stays untouched. It rides the same input-trigger pipeline as ui-skill's / (so it coexists with ui-subagent's @ mentions as a second menu group), and it serves its project tree over its own HTTP route (ctx.webServer).

Install

1. Install the plugin from npm (published as @dsh-mixxed/dsh-client-ui-filesystem):

   dsh plugin --profile web add @dsh-mixxed/dsh-client-ui-filesystem

   The package declares dsh.bundle (its bundled cordis.patch.yml), so dsh plugin add automatically appends it to the profile's dsh.profile.bundles layer stack and the plugin mounts on the next boot — no manual cordis.patch.yml editing.

   Upgrading an install that predates the bundle declaration: remove the legacy ui-filesystem row from $DSH_HOME/profiles/<name>/cordis.patch.yml — the bundle layer now supplies it, and leaving both would mount the id twice.

2. Restart the profile (new plugins are discovered at boot), open any session, and type @.

Building from source (development / offline)

pnpm install
pnpm run typecheck
pnpm test
pnpm run build
npm pack          # produces dsh-mixxed-dsh-client-ui-filesystem-<version>.tgz
dsh plugin --profile web add ./dsh-mixxed-dsh-client-ui-filesystem-<version>.tgz

Features

• @ trigger: same pipeline as ui-skill's / (ui-input-trigger), shown alongside ui-subagent's @ mentions as its own menu group
• Basename-prefix matching: the query matches only the file/directory name prefix, never the path prefix — @index hits src/index.ts and test/index.ts; path-shaped queries like @src/ return nothing (by design)
• Filename-first rows: every candidate shows the file/directory name first and the relative path after (e.g. index.ts src/index.ts)
• Plain-text references: picking replaces the @ token with the literal @relative/path — the prompt ships the same literal and the model resolves the file with its own fs tools
• Per-session caching: each session fetches the bounded project tree once; keystroke filtering happens locally, and connection/reset rebuilds the cache
• Bounded walk: skips node_modules / .git / hidden entries (configurable), caps depth at 6 and entries at 2000, and never lists symlinks
• Retry on failure: a failed tree request (e.g. right after the host restarts, before the session is attached) retries once, keeping the menu in its loading state instead of vanishing

Usage notes (harness behavior, accepted as-is)

• Where @ triggers: the trigger char must sit at the start of the draft, after whitespace, or after punctuation. A Chinese character directly before @ does not trigger (请查看@index is a miss; 请查看，@index works) — the trigger detector treats CJK letters as word characters. That rule lives in the harness's ui-input-trigger; this plugin does not modify the harness, so inline references work best with a space or punctuation before @.
• Loading state: while the project tree loads, the menu opens immediately with the group's existing text-only loading row (正在加载…); an animated spinner would require modifying the harness menu component, which this plugin does not do.
• No chip decoration: @path stays plain text in the draft — the decoration scanner only matches word-ish names, so paths never render as chips (DESIGN.md §7.1).
• No menu group title: the harness menu renders a raw per-source title row (the slash.menu dictionary is exclusively owned by the harness); since @ shows only this plugin's group, the title row is hidden with one injected CSS rule.
• Full boundary list: DESIGN.md §7.

Verify

dsh --profile <name> --dump-config | Select-String ui-filesystem

The composed config shows the ui-filesystem row, and $DSH_HOME/profiles/<name>/package.json lists @dsh-mixxed/dsh-client-ui-filesystem under dsh.profile.bundles (auto-appended by dsh plugin add).

After the restart: @ opens the filesystem group (name first, path after) → basename-prefix filtering → picking inserts @path → the model can read the file from the prompt literal.

Config (optional)

Tune the walk bounds from your profile's own cordis.patch.yml — the user layer is applied after the bundle layer, so an id-targeted patch overrides the bundled mount row:

- id: ui-filesystem
  name: "@dsh-mixxed/dsh-client-ui-filesystem"
  config:
    maxDepth: 6          # max path-segment depth (default 6)
    maxEntries: 2000     # total entry cap (default 2000)
    skipHidden: true     # skip dot-prefixed entries (default true)
    skipPatterns:        # basename exact-match skip patterns (default node_modules, .git)
      - node_modules
      - .git

License

MIT