Claude Code Bash tool patterns with hooks, automation, git workflows. Use for PreToolUse hooks, command chaining, CLI orchestration, custom commands, or encountering bash permissions, command failures, security guards, hook configurations.

Comprehensive guide to Claude Code's extensibility features including subagents, skills, plugins, commands, hooks, MCP servers, permissions, and automation. Use when the user asks about Claude Code features, capabilities, customization, extensibility, how to extend Claude Code, or automation workflows.

Search local Claude Code documentation to answer implementation questions. Use when asked about Claude Code features, subagents, workflows, skills, hooks, MCP servers, plugins, settings, CLI options, headless mode, or any Claude Code capability.

Generate dependency graph and structural analysis of Claude Code plugins

Configure and build Model Context Protocol (MCP) servers for Claude Code integration. Set up database, filesystem, git, and API connections. Build custom MCP servers with TypeScript/Python SDK, implement tools and resources, configure transports (stdio, HTTP), and deploy for production.

Comprehensive guide for building, testing, and distributing Claude Code plugins including slash commands, Agent Skills, subagents, MCP servers, and hooks. Use this when the user asks about creating plugins, writing slash commands, implementing skills, building MCP tools, configuring hooks, plugin architecture, marketplace distribution, or debugging plugin components. Covers 2025 schema with tool permissions, version tracking, and activation triggers.

Comprehensive reference for creating Claude Code skills with progressive disclosure, SKILL.md structure, references/ organization, frontmatter specification, and best practices for modular capability development.

Create custom slash commands for Claude Code.

Claude Code AI-assisted development workflow. Activate when discussing Claude Code usage, AI-assisted coding, prompting strategies, or Claude Code-specific patterns.

Use when configuring, maintaining, troubleshooting, or optimizing Claude Code extensions including skills, commands, hooks, MCP servers, or agents. Provides best practices and prevents common mistakes.

Central authority for Claude Desktop application - the native desktop app for running Claude Code sessions. Covers installation (macOS/Windows), Git worktrees for parallel sessions, .worktreeinclude file configuration, cloud session launch, environment configuration, MCP Desktop Extensions (.mcpb), and Desktop vs CLI comparison. Assists with Desktop setup, worktree configuration, cloud sessions, and troubleshooting. Delegates 100% to docs-management skill for official documentation.

Consult official Claude Code documentation from docs.claude.com using selective fetching. Use this skill when working on Claude Code hooks, skills, subagents, MCP servers, or any Claude Code feature that requires referencing official documentation for accurate implementation. Fetches only the specific documentation needed rather than loading all docs upfront.

Essential reference for ALL Claude Code artifact work (Skills, Commands, Subagents, Hooks, Plugins). Automatically activates when creating, updating, validating, or discussing any Claude Code artifact. Provides complete specifications, YAML schemas, field definitions, creation workflows, decision frameworks, comparison matrices, validation rules, common mistakes, and best practices. Always consult for artifact specifications, technical requirements, workflow guidance, quality standards, or troubleshooting. Works alongside claude-researcher skill for documentation verification.

Claude Code extensibility: agents, skills, output styles. Capabilities: create/update/delete agents and skills, YAML frontmatter, system prompts, tool/model selection, resumable agents, CLI-defined agents. Actions: create, edit, delete, optimize, test extensions. Keywords: agent, skill, output-style, SKILL.md, subagent, Task tool, progressive disclosure. Use when: creating agents/skills, editing extensions, configuring tool access, choosing models, testing activation.

Expert Git workflow management for Claude Code sessions with branch naming conventions, push retry logic, conflict resolution, and PR automation specifically designed for AI-assisted development workflows.

Expert assistant for conducting remote experiments with Claude-Light - a web-accessible RGB LED and spectral sensor instrument for statistics, regression, optimization, and design of experiments

Creating and maintaining CLAUDE.md project memory files that provide non-obvious codebase context. Use when (1) creating a new CLAUDE.md for a project, (2) adding architectural patterns or design decisions to existing CLAUDE.md, (3) capturing project-specific conventions that aren't obvious from code inspection.

Manage CLAUDE.md documentation when updating the seed system documentation or project overview. Not for creating specific skills or commands.

Create or update CLAUDE.md files following best practices for optimal AI agent onboarding

Use when testing iOS apps on simulator, capturing screenshots for validation gates, automating UI testing with expo-mcp and xc-mcp, or verifying visual correctness - combines expo-mcp autonomous testing (React Native level) with xc-mcp simulator management (iOS level)

Use when starting Metro bundler for Expo development, debugging Metro errors, or enabling expo-mcp local capabilities - manages Metro lifecycle with EXPO_UNSTABLE_MCP_SERVER=1 flag for autonomous testing

Complete reference for Claude Code plugins system (January 2026). Use when creating plugins, understanding plugin.json schema, marketplace configuration, bundling skills/commands/agents/hooks/MCP/LSP servers, plugin caching, validation, or distribution. Covers plugin components, directory structure, installation scopes, environment variables, CLI commands, debugging, and enterprise features.

Guide for creating Agent Skills with progressive disclosure and best practices. Use when creating new skills, understanding skill structure, or implementing progressive disclosure.

Claude Code specific instructions for working with this CDK monorepo. General guidance on code generation, refactoring, and feature additions.

Comprehensive guidance for creating, validating, and documenting Claude Code subagents with schemas and protocol specifications.

Synchronize Claude Code configuration files to existing codebases. Updates skills, CLAUDE.md, settings, and related configuration from a source template to target repositories. Includes automatic backup and dry-run capabilities.

Structured spec-driven workflow for planning and executing software projects with Claude Code.

claudecraft

Update ClaudeKit Engineer projects to the latest version. Capabilities include update single projects (safe mode with test branches), batch update multiple projects, find all ClaudeKit projects in home directory, verify updates with automated checks, preserve user settings and code, create timestamped backups, handle git workflows (branch, commit, merge), and rollback if needed. Use when user wants to update ClaudeKit framework, upgrade to latest version, apply new features/skills/commands, or maintain multiple ClaudeKit projects.

Analyze and optimize prompts using 6-dimension quality assessment (Clarity, Efficiency, Structure, Completeness, Actionability, Specificity). Use when you need to improve a prompt before implementation.

Verify implementation against PRD requirements with systematic checking. Use after implementation to validate completeness.

Use ClawHub CLI to search, install, update, and publish agent skills from clawhub.ai with advanced caching and compression. Use when you need to fetch new skills on the fly, sync installed skills to latest or a specific version, or publish new/updated skill folders with optimized performance.

Use the ClawdHub CLI to search, install, update, and publish agent skills from clawdhub.com. Use when you need to fetch new skills on the fly, sync installed skills to latest or a specific version, or publish new/updated skill folders with the npm-installed clawdhub CLI.

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Recognize/Describe clearML architecture and extension points

clerk-auth

Comprehensive guide for implementing and testing Clerk authentication, with special focus on Astro SSR integration and Playwright E2E testing.

Implements authentication with Clerk including user management, protected routes, middleware, and React components. Use when adding authentication, managing users, protecting routes, or implementing sign-in/sign-up flows.

Automates Clerk JWT token generation, validation, and export for FastAPI integration tests. Use when an agent must refresh tokens, verify JWT templates, or unblock authentication workflows without breaking environment state.

Use this skill when you need to invoke another Claude Code session via the cli-agent-runner.sh script to perform specialized, potentially long-running tasks in a simplified way. This wrapper handles session management, result extraction, and can be run in background with polling support.

Test and validate DyGram machines using CLI interactive mode. Step through execution, provide intelligent responses, debug behavior, and create test recordings.

Master CLI navigation and code exploration using modern command-line tools. Use this skill when navigating repositories, searching for files/text/code patterns, or working with structured data (JSON/YAML/XML). Provides guidance on fd (file finding), rg (text search), ast-grep (code structure), fzf (interactive selection), jq (JSON), and yq (YAML/XML).

This skill should be used when creating a skill for a CLI tool. Use when users ask to document a command-line tool, create CLI guidance, or build a skill for terminal commands. Essential for systematically introspecting CLI tools through help text, man pages, GitHub repos, and online research, then organizing findings into effective skill documentation.

Set up snapshot testing for CLI output with update workflows and diff reporting.

This skill should be used when performing exploratory testing of command-line tools and scripts, including help text validation, option testing, error handling verification, and output validation. Triggers when testing CLI commands, scripts, build tools, or command-line interfaces.

Test and validate ClickHouse Cloud connection using clickhouse-connect for gapless-crypto-clickhouse. Use when validating connectivity, troubleshooting connection issues, or verifying environment configuration. Includes version check and query validation.

Specialized agent for ClickUp integration using the @taazkareem/clickup-mcp-server. Handles task management, time tracking, and workspace operations through 36 MCP tools.

Standalone CLI bridge - launch external AI CLIs (gemini, codex, claude) directly without MCP server. Use when you need to delegate tasks to specialized CLI tools with their own context windows. Supports role-based prompts and file references.

Smart image-text matching that knows when CLIP works and when to use alternatives.

Use when configuring Clippy for Rust projects with TOML config, lint groups, attributes, and workspace setup.