feat(composer): list skills with slash commands

[maria-rcks]

Typing / only showed built-in and provider commands, so users had to know about the separate $ trigger to discover skills.

This adds enabled skills to the slash menu on web and mobile. A bare / lists commands and skills together, further typing filters the same list, and selecting a skill still inserts its canonical $name token. Skill rows use a muted skill: prefix while keeping the skill name at the normal title color.

Tests:

• vp test run apps/web/src/components/chat/ComposerCommandMenu.test.tsx apps/web/src/components/chat/composerSlashCommandSearch.test.ts apps/web/src/providerSkillSearch.test.ts
• changed-file vp lint
• vp run --filter @t3tools/mobile typecheck
• git diff --check

Web typecheck still reports the existing conditionalUI errors in src/components/clerk/electronPasskeys.test.ts. Browser and simulator verification were not run.

before:

after:

Built with gpt-5.6-sol via Codex in T3 Code.

---

Note

Low Risk
Composer suggestion UI and ranking only; skill insertion still uses the existing $name path, with no auth or data-handling changes.

Overview
Typing / now surfaces enabled provider skills next to built-in and provider slash commands on web and mobile, so users don’t need the $ trigger to discover them. Selecting a skill still inserts the existing $name token.

Slash skill rows show a muted skill: prefix plus the skill name (no source icon). Search treats skill / skill: as a prefix, then ranks by name, display name, and description. Empty / keeps commands and skills in one list.

^{Reviewed by Cursor Bugbot for commit f6afef2. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

List provider skills in slash-command suggestions for mobile and web composers

• Both ThreadComposer (mobile) and ChatComposer (web) now build skill items from the selected provider's enabled skills and include them in slash-command results.
• Mobile uses a new matchesSlashSkillQuery util to filter skills; web extends searchSlashCommandItems and scoreSlashCommandItem to score skill items, with tie-breaker ordering commands before skills.
• Skill rows render a dimmed skill: prefix followed by the skill name, and suppress the source icon on web's ComposerCommandMenuItem.
• Risk: scoreProviderSkill in providerSkillSearch.ts is now exported; existing in-tree callers are unaffected but external consumers of this module's surface may see the new export.

^{Macroscope summarized f6afef2.}

request provenance

• requested by: @maria-rcks

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[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This PR introduces a new feature that adds skills to slash command menus, changing what users see when typing '/' in the composer. While well-tested and following existing patterns, new user-facing behavior warrants human review.

^{You can add or adjust custom eligibility rules. Learn more.}

[macroscopeapp]

Reviewed the web composer changes that add provider skills to the / menu. Two consistency issues in apps/web/src/components/chat: the slash list now mixes rows with and without a leading icon, and skill filtering is duplicated across two searchers with different field coverage, so / returns fewer skills than $ for the same query. Details inline.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

One finding on the new slash-menu skill rows. The earlier alignment and double-filter comments look addressed (the source icon is now suppressed in slash mode, and / skills are filtered once through searchSlashCommandItems).

^{Posted via Macroscope — UI Consistency}

[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

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^{Reviewed by Cursor Bugbot for commit b86f1ff. Configure here.}