Spec Kit Plan

Generate implementation design artifacts from the approved feature specification.

Invocation Notice

• Inform the user when this skill is being invoked by name: spec-kit-plan.

When to Use

• spec.md exists and you need plan.md plus Phase 0/1 design outputs for task generation.
• plan.md is missing, stale, or invalid after changes to spec.md or memory/constitution.md.
• The next step is spec-kit-tasks, but technical context and design decisions are not yet documented.

When Not to Use

• No usable spec.md exists yet (spec-kit-specify first).
• High-impact ambiguity in spec.md still blocks architecture or validation decisions (spec-kit-clarify first).
• You are decomposing design into executable work items (spec-kit-tasks).