Dual-perspective GAS plan review (frontend + backend) with iterative convergence loop.
**AUTOMATICALLY INVOKE** when:
- Any plan exists for GAS changes, GAS project changes, or uses mcp_gas
- Plan mode produces a plan file for a GAS project (scriptId present)
- User says "review plan", "check plan", "validate plan", "plan review"
- User says "is this plan ready", "plan quality", "gas-plan"
- After ExitPlanMode on any GAS project plan
- Plan references .gs files, .html files in GAS context, or mcp__gas__ tools
- Plan modifies CommonJS modules, __events__, doGet/doPost, or addon code
**NOT for:** Code review (use /gas-review), test review (use /gas-test-review),
prompt analysis (use /prompt-critique), non-GAS plans
**mode parameter:**
- `standalone` (default): TeamCreate + parallel evaluators + convergence loop + ExitPlanMode
- `evaluate`: Single-pass read-only evaluation — returns findings via SendMessage to calling
team-lead. No edits, no team creation, no ExitPlanMode. Used internally by review-plan.
Software Development