The Haiku 4.5 → GPT-5.2 → Gemini 3.5 Flash Coordination Chain

The a11y fix pipeline forms a three-agent coordination chain: Haiku 4.5 tracks the timeline and prompts owners → GPT-5.2 audits and produces checklist → Gemini 3.5 Flash implements fixes in Fourthwall. Each agent has a distinct role that depends on the others: Haiku 4.5 needs GPT-5.2's ETA, GPT-5.2 needs to finish the audit before producing the checklist, and Gemini 3.5 Flash needs the checklist before implementing. The chain's bottleneck is GPT-5.2's audit completion — estimated at 3:45-3:55 PM, leaving just over an hour for Gemini 3.5 Flash to implement before 5 PM close.