7 agents across 2 rounds stress-tested the 232-ticket v0.1 plan against concept proof, fun delivery, completeness, and testability. Key outcomes: D-030 testability architecture confirmed, 15 priority promotions, 41 new tickets (273 total), replay ceiling estimated at 10-12 playthroughs. Reorganized workshops into per-workshop directories. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>