dsh-codex-model-picker

A Codex-style model picker for the DeepSeek Harness composer.

It replaces the composer's model menu with a small card — the reasoning effort on top, the current model below it, and a draggable effort slider at the bottom — the way Codex's model switcher works.

Screenshot

Features

• Codex-style card anchored above the composer model button, flipping below when there is no room.
• Draggable effort slider with one stop per effort the model actually advertises (off, minimal, low, medium, high, xhigh, max when advertised). The thumb snaps to whole stops, animates between them, and the effort label updates while you drag, not only after you release.
• No provider-default stop. Levels come from the adapter's advertised reasoning.efforts. A model without a stored effort shows medium when available, otherwise its advertised default (or the middle level), never a synthetic "default" entry.
• Off stop when the model advertises it; committing it sends reasoningEffort: "off", which providers like Codex map to "no reasoning".
• Model list with provider grouping, the current selection, badges, loading and error states, and keyboard navigation.
• Full keyboard support: arrows move one stop, Home/End jump to the ends, Escape closes and returns focus.
• Theme-aware: every color, radius and shadow comes from DSH theme tokens, light and dark.
• Chinese and English UI.

Requirements

• DeepSeek Harness 0.2.2-rc.1 or newer (the client slot API it shadows was stabilized in this line).
• A web profile (dsh web or the desktop app).

Install

dsh plugin --profile web add github:caidows/dsh-codex-model-picker

Then reload the page. The plugin registers a client slot occupant at priority -1 on conversation.input.model, shadowing the shipped picker; disabling or removing the plugin restores the stock picker with no state left behind.

To install from a checkout, point dsh plugin add at the package directory instead.

How it works

cordis.patch.yml inserts one row, codex-model-picker, which loads the client bundle in client.js. The bundle renders into the composer's model slot and reads the same per-session model directory (ctx.modelDirectories.directoryFor(sessionId)) the shipped picker uses, so model switches and effort switches go through session.selectModel and stay in sync with the rest of the UI.

view.js and style.css are the sources; client.js is generated:

node build.mjs

License

MIT