🤖 feat: add skills catalog search and read tools for Chat with Mux#2739
🤖 feat: add skills catalog search and read tools for Chat with Mux#2739ethanndickson merged 2 commits intomainfrom
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--- _Generated with `mux` • Model: `openai:gpt-5.3-codex` • Thinking: `xhigh` • Cost: `0.98`_ <!-- mux-attribution: model=openai:gpt-5.3-codex thinking=xhigh costs=50.98 -->
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Summary
Add
skills_catalog_searchandskills_catalog_readtools that allow the Chat with Mux agent to discover and preview skills from the skills.sh catalog, then install them via the existingagent_skill_writeflow.Closes #2325
Background
Users in Chat with Mux had no way to browse or discover community skills from the skills.sh catalog. The existing
agent_skill_*tools only manage locally-installed skills. This bridges the gap: search the catalog, preview a skill's content, and install it — all within the chat.Implementation
Two new tools:
skills_catalog_search— Queries the skills.sh API (/api/search?q=...&limit=...) with configurable limit (1–50, default 10). Returns parsedowner/repofrom the source URL, plus a skills.sh link for each result.skills_catalog_read— Shallow-clones the skill's GitHub repo into a temp directory, resolves theSKILL.mdby direct path or frontmatter-name scan (handles directory name ≠ skill name mismatches), parses it, and returns the frontmatter + body. Temp dirs are always cleaned up.Availability gating (two layers):
mux.md): Both tools added to themuxagent'stools.addallowlist, soresolveToolPolicyForAgent()enables them only for Chat with Mux.MUX_HELP_CHAT_WORKSPACE_IDworkspaces as defense-in-depth.Design choices:
vercel-labs/skillsCLI behavior and avoids GitHub API rate limits.parseSkillMarkdownwithoutdirectoryNameenforcement to handle catalog skills where directory name differs from frontmattername:.SKILLS_API_URLenv var override for testing/dev.Files changed
src/common/types/tools.tssrc/common/utils/tools/toolDefinitions.tssrc/common/utils/tools/tools.tsnonRuntimeToolssrc/node/builtinAgents/mux.mdtools.addallowlistsrc/node/services/tools/skillsCatalogFetch.tssrc/node/services/tools/skills_catalog_search.tssrc/node/services/tools/skills_catalog_read.tssrc/node/services/tools/skillsCatalogFetch.test.tssrc/node/services/tools/skills_catalog_search.test.tssrc/node/services/tools/skills_catalog_read.test.tsGenerated with
mux• Model:anthropic:claude-opus-4-6• Thinking:xhigh• Cost:$26.27