Use when writing Rayfin user-defined functions (UDFs), invoking functions from frontend code, or using functions CLI commands. Triggers: rayfin functions, udf.func, UserDataFunctions, RayfinContext, FabricContext, AppFunctionsSchema, functions init, dev functions apply, client.functions, invoke, func start, function_app.ts, types.ts, rayfin/functions/, FunctionClient, FunctionsSchema…
Install
npx skills add microsoft/rayfin --skill rayfin-functionsnpx skills add microsoft/rayfin --skill rayfin-functions -a claude-code -gnpx skills add microsoft/rayfin --skill rayfin-functions -a codex -ggemini skills install https://github.com/microsoft/rayfin.git --path packages/tools/cli/assets/agent-files/skills/rayfin-functionsgh skill install microsoft/rayfin rayfin-functionsgit clone --depth 1 https://github.com/microsoft/rayfin /tmp/microsoft__rayfin
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/microsoft__rayfin/packages/tools/cli/assets/agent-files/skills/rayfin-functions ~/.claude/skills/rayfin-functions # Claude Code
cp -R /tmp/microsoft__rayfin/packages/tools/cli/assets/agent-files/skills/rayfin-functions ~/.agents/skills/rayfin-functions # Codex, Cursor, Gemini CLI, Copilot, OpenCode