Brainstorm a Feature or Improvement Brainstorming answers WHAT to build through dialogue; then enriches the same unified plan artifact with HOW . This skill does not implement code. Outcome: a result sized to the work that can build on without inventing product behavior, scope boundaries, or success criteria: a chat paragraph for Lightweight work, or a requirements-only unified plan under when a file is earned. Done, on the brainstorm path: that artifact is written and passes the Ready for Planning Check — or no file was written because the dialogue produced no decision that a later reader (t…