12 actionable items (7 Sprint 1 tasks, 5 Sprint 2+ tasks) and 5 workshop epic tickets. Sprint 1 critical items include protocol handshake, SpatialIndex trait, HashMap ban, IPC timing benchmark, and entity_renderer.gd bug fix. Workshop #352 blocked by #351. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>