review-plan
Universal plan review: 3 layers (general quality, code change quality, ecosystem specialization). Invokes gas-plan for GAS plans or node-plan for Node.js/TypeScript plans, conditionally based on detected patterns. AUTOMATICALLY INVOKE when: - MANDATORY_PRE_EXIT_PLAN directive applies (before ExitPlanMode) - User says "review plan", "check plan", "plan ready?" - Any plan file needs review (GAS or non-GAS) NOT for: Code review of existing files (use /gas-review or /review-fix)