dsh-reasoning
Codex-style /reasoning command for DeepSeek Harness Web.
Type /reasoning in the composer, press Enter, and pick a reasoning effort
(Off / Low / High / Max, whatever the current model's adapter
advertises) from the popup — fully keyboard-driven, no mouse required.
Why
The built-in model picker exposes reasoning effort through a two-level menu
in the composer seat. This plugin surfaces the exact same data as a slash
command, so switching effort is three keystrokes instead of a click path:
/reasoning → Enter → ↑↓ (or type to filter) → Enter.
It is a thin client-only plugin:
- no host configuration, no persistence, no settings page;
- registers one
popupSelect command contribution through the official
ctx.commandUi extension point (the same one /model uses);
- submits picks through the shared per-session model directory
(
ctx.modelDirectories → session.selectModel), i.e. the identical RPC the
composer effort pane uses;
- never touches the draft, the IME composition, or an in-flight request —
a pick applies to the next model request only.
Requirements
- DeepSeek Harness Web host exposing the
model-directory service and the
commandUi extension point (both ship with the official Web bundle);
- an open ordinary session with a model selected (the model's adapter must
advertise reasoning metadata — the popup lists them; without a selected
model the popup stays empty and the pick reports the host error).
Install
Add the package to a Web profile dsh.profile.bundles, e.g.:
dsh plugin --profile <profile> add @bo_wu/dsh-reasoning
or reference it from your own cordis.patch.yml:
- insert:
- id: dsh-reasoning
name: '@bo_wu/dsh-reasoning'
Then restart the profile's Web host.
Behavior contract
- The command is hidden for addressed subagent sessions (same rule as
/model).
- A pick re-selects the current model with the chosen effort; the popup
lists only the current model's advertised effort levels, plus a
Default
row when the adapter has no explicit default.
- Selecting the already-active effort closes the popup without a request.
- Rejected selections keep the previous effort and surface the host error in
the popup.
- No global keyboard shortcuts — nothing to conflict with other plugins.
Publish (maintainer)
- CI (
pnpm check: typecheck + tests + build) runs on every push/PR.
- Tagging
v* publishes the package to npm (public) via GitHub Actions.
- Publishing needs the repo secret
NPM_TOKEN: an npm automation token
(npmjs.com → Access Tokens → Generate New Token → Automation) for an
account owning the @bo_wu scope.
Development
pnpm install
pnpm build # tsc -b && tsdown → lib/
pnpm test # vitest
pnpm check # typecheck + test + build
The browser bundle is produced by tsdown into lib/client.js wrapped in
the DSH lazy module loader.
License
MIT
