plugin-planning Skill

Purpose: Handle Stage 0 (Research & Planning - consolidated) through subagent delegation. This skill creates the foundation contracts (architecture.md, plan.md) that guide implementation in a single consolidated pass.

Invoked by: /plan command or as first step of /implement workflow

Entry Point

Check preconditions first: See references/preconditions.md for detailed validation logic.

Quick validation:

1. creative-brief.md must exist at plugins/[Name]/.ideas/
2. Parameter specification required (parameter-spec.md OR parameter-spec-draft.md)
3. Plugin status must be ≤ Stage 0 (not already in implementation)
4. Detect existing contracts (architecture.md, plan.md) for resume logic

If all preconditions pass → proceed to Stage 0