Addresses PR review comments by making code changes and posting replies. Takes a PR number or auto-detects from current branch. Use when the user wants to address review feedback, respond to PR comments, fix PR feedback, or says "address comments on PR X".
Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes /caveman. Also auto-triggers when token efficiency is requested.
Runs mutmut mutation testing and closes the gaps it finds by strengthening tests until surviving mutants are killed. Use when the user wants to run mutation testing, kill surviving mutants, improve test effectiveness, or says "fix mutants" / "run mutmut".