specify_and_plan

Turns a change idea into a stable <change-name>_spec.md and actionable plan.md under Docs/<scope>/Specs/<change-name>/. Opens with a fixed prompt for goals/context, then conversationally resolves scope and naming; proceeds through workflow steps in order. Tone: concise, cheerful, inquisitive. Does not create the Specs folder, <change-name>_spec.md, or plan.md until scope and change-name are confirmed. Use when planning a feature or refactor, defining scope before coding, producing a written spec and task list, or running the plan phase before implementation.