copilot-cli-things

GitHub Copilot CLI configuration and setup: custom instructions (copilot-instructions.md, AGENTS.md), managing skills, configuring hooks (hooks.json), MCP servers (mcp-config.json), custom agents (.agent.md), installing plugins, extensions placement. Use when choosing between customization surfaces, setting up config files, managing installed components, or debugging configuration loading order.

Copilot CLI extension development: extension.mjs, hooks, tools, events, SDK API, JSON-RPC. Use when creating, building, debugging, or inspecting extensions, or asking about lifecycle, permissions, onPermissionRequest, joinSession, or session events.

MCP server development: build, create, and test Model Context Protocol servers in TypeScript or Python. Tool design, input/output schemas, Zod/Pydantic validation, evaluations, stdio/HTTP transport, @modelcontextprotocol/sdk, FastMCP.

Skill development lifecycle: create, edit, test, benchmark, and optimize SKILL.md files. Evals, assertions, description triggering optimization, variance analysis, iteration loops. Use when creating a skill from scratch, improving an existing skill, running evals, or optimizing a skill description.

Hookify rule toggling — enable/disable existing `.local.md` rules interactively. Triggers on "configure hookify", "enable/disable hookify rules", "toggle hooks", manage rule settings.

Hookify rule creation — analyze conversation for unwanted behaviors, generate `.local.md` rule files with regex patterns. Triggers on "create a hookify rule", "hookify this", "add a hook to prevent", "prevent behavior", or describing unwanted tool patterns.

Hookify documentation and usage guide — plugin architecture, rule syntax, event types, pattern examples, available skills. Triggers on "how does hookify work", "hookify help", "how to use hookify", hookify documentation.

List and inspect all configured hookify rules — show status, event types, patterns, file paths. Triggers on "list hookify rules", "show my hooks", "what hookify rules do I have", view configured rules.

Hookify rule authoring reference — YAML frontmatter format, regex patterns, event types (bash/file/stop/prompt), conditions, operators. Triggers on "create a hookify rule", "write a hook rule", "add a hookify rule", "hookify rule syntax", rule pattern guidance.

Agent development for Copilot CLI plugins: .agent.md files, agent frontmatter, system prompts, triggering conditions, tool restrictions, model selection. Use when creating, configuring, or debugging autonomous agents.

Copilot CLI plugin scaffolding and creation workflow. Covers requirements gathering, component planning, directory structure, implementation, validation, and testing. Use for new plugin projects or guided plugin development.

Hook development for Copilot CLI plugins: hooks.json, preToolUse/postToolUse/agentStop/sessionStart hooks, command hooks, event-driven validation, tool blocking, policy enforcement. Use when creating or debugging plugin hooks.

MCP server integration for Copilot CLI plugins: mcp-config.json, stdio/SSE/HTTP/WebSocket servers, OAuth, tool naming. Use when adding external service connections, configuring MCP, or debugging MCP tools.

Plugin settings and state via .github/plugin-name.local.md: YAML frontmatter configuration, per-project settings, .local.md files, reading/writing plugin state from hooks and agents.

Copilot CLI skill creation and authoring. Covers SKILL.md structure, YAML frontmatter, description writing, progressive disclosure, bundled resources (scripts/references/assets), imperative writing style, validation, and iteration. Use for creating, improving, or organizing plugin skills.