ac-plan

name	ac-plan
description	Plan and freeze workflow execution by creating an Execution Contract, setting PLAN_FROZEN/CURRENT_ROLE, and updating PROJECT_STATE decisions and Top 3. Use when starting workflow delivery, re-planning after unfreeze, or when scope/constraints change before execution.

1. Read PROJECT_STATE.md; create it from docs/PROJECT_STATE_TEMPLATE.md if missing.
2. Define goal, scope boundary, forbidden changes, and acceptance checks.
3. Fill Execution Contract completely:

• Scope
• Files to change
• Forbidden
• Steps
• Checks
• Commit plan
• Rollback note

4. Update 下一步 Top 3 and append 关键决策日志.
5. Set PLAN_FROZEN: true and CURRENT_ROLE: planner.
6. Emit a [STATE] anchor and hand off to $ac-execute.

Hard rules:

• Do not implement feature changes in this skill.
• Do not hand off if Contract fields are incomplete.