Brainstorm The step before any artifact exists: a conversation that questions the problem, explores alternatives — including building nothing — and converges on which skill runs next. Read-only on the repository; the only file it may write is one handoff brief, after the user confirms the routing. The emitted line is machine-parsed, so an orchestrator can run the chosen next step autonomously. <HARD-GATE Do not edit repository files, write code, create specs or issues, or invoke any implementation or tracker-mutating skill during the conversation. The only file this skill writes is the single…