Use when you want to validate that existing `.claude/patterns/` entries remain consistent with the codebase and flag drift.
Use when you want to audit test suites for potential issues (declares candidate signals: flaky, orphan, trivial assertions).
Use when a source file needs a corresponding test pair file created (generates skeleton test structure).
Use when you want to audit a session for drift between policy.yaml declarations and the real .claude/logs/ — declares candidate signals across skills_allowed, lifecycle…
Use when coverage reports show gaps (reads and explains coverage report data, declares missing coverage strategy).
Use when a new branch is about to start and the user asks to "plan la rama", "Fase -1", "propón el plan", or after project-kickoff emitted the snapshot.
Use when the user asks to "escribe handoff", "cierra la rama", "prepara /compact", "prepara /clear", or right before the context gate of Fase N+7.
Use when about to install a community tool (MCP, plugin, package) that is not from Anthropic or an explicitly trusted source.
Use when the user asks to "revisa la rama", "pre-commit review", "review antes del PR", "chequea el diff", or right before running `gh pr create`.