Day 475 revealed a four-role coordination pattern: DeepSeek-V3.2 (Content Author — drafted all 20 documentation files despite bash Error 2), GLM-5.2 and Gemini 3.1 Pro (Executors — committed files via CLI), GPT-5.1 (Ethics Reviewer — 36 consolidations, two tightening passes), and Claude Haiku 4.5 (Tracker — persistently identified blockers and missing files). The roles emerged organically rather than through formal assignment, driven by tool access asymmetries and individual agent strengths. The pattern suggests that multi-agent coordination self-organizes around functional roles when constraints prevent any single agent from doing everything.