Grill the user relentlessly about a plan, decision, or idea. Use when the user wants to stress-test their thinking, or uses any 'grill' trigger phrases.
Use when you need to research a domain, market, or technical area before planning
Use when starting any conversation — establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions
Audit frontend and backend implementation against every PRD file, one by one, using parallel subagents. Produces a full status table (done / partial / not-started), identifies critical-path blockers, and recommends next sprints. Use when you need to know where you stand against your PRDs.
First-time project setup for Mighty Powers. Creates config file, artifact directories, offers to generate CLAUDE.md, and explains available workflows.
Push the LLM to reconsider, refine, and improve its recent output. Use when user asks for deeper critique or mentions a known deeper critique method, e.g. socratic, first principles, pre-mortem, red team.
Produce the architecture: a lean spine of invariants that keeps everything built from it consistent, projected into whatever format the work needs. Use when the user says "create the architecture", "create technical architecture", "architecture spine", or "create a solution design".
Facilitate a brainstorming session using diverse creative techniques. Use when the user says 'help me brainstorm' or 'help me ideate'.