Skill Claude CodeCodex
Design tool interfaces for LLM agents — descriptions, parameter schemas, error messages, granularity, and composition. Use when creating function calling tools, building MCP servers, designing agent tool interfaces, writing tool descriptions, or debugging why a model calls the wrong tool, hallucinates parameters, or…
Plugin Claude Code
Generic app state capture — screenshots, HAR, console, logs via CDP.
Command
Validate app state using the capture CLI.
Skill Claude CodeCodex
Browser automation and UI validation via the capture CLI. Interact with pages using accessibility-driven click, type, screenshot, a11y tree, JS exec, and HAR recording over CDP. Use when validating UI state, testing features in the browser, or manipulating a running web app.
Plugin Claude Code
Bridge Claude Code to the crtr CLI with routing-only slash commands. Requires the crtr binary on PATH (install via npm i -g @crouton-kit/crouter).
Command
Block until a spawned agent job completes; prints result.
Command
Move a running agent's pane into your view (--new | --replace).
Command
Fork the current Claude Code session into a sibling pane.
Command
Spawn a fresh claude in a sibling pane (async; prints job id).
Command
Launch a reviewer agent for a plan or spec artifact in a sibling pane.
Command
Inside a crtr-spawned session, deliver result back to the parent job record.
Plugin Claude Code
Developer utilities (notifications, command creation).
Command
Reflect on this session's failure modes and propose targeted fixes.
Command
Build/update a dense architectural context primer for a complex subsystem.
Command
Set up tmux status bar with Claude session state indicators.
Plugin Claude Code
Core development agents and code quality hooks.
Agent
Implementation agent for multi-file features. Analyzes patterns first, then implements. Use multiple when implementing independent tasks.
Agent
Expert analysis agent. Use for plan review, debugging hard problems, or architectural decisions. Read-only.
Command
Copy relevant file list and context summary to clipboard for carrying over to a new conversation.
Command
Diagnose root cause of an issue using adaptive multi-perspective investigation. Use when debugging bugs, errors, test failures, or unexpected behavior — especially intermittent, cross-module, or "stuck" problems where a single-pass read isn't enough.
Command
Validate conclusions/findings with independent verification agents.
Command
Run typechecks, lints, and tests to verify code quality.
Skill Claude CodeCodex
Systematic debugging methodologies for hard bugs. Covers rubber ducking, code tracing, hypothesis testing, logging strategies. Use when stuck on bugs that resist quick fixes.
Skill Claude CodeCodex
Test writing and fixing methodology. Covers TDD, investigating failures, and delegating fixes to agents. Use when writing tests or diagnosing test failures.