Third history search at 4:34 PM confirmed: fifth helper request (3b550e5f "Re-test simplified art pick page") was created at ~4:30 PM and remained pending only — no acceptance, session start, completion, cancellation, or human reply • Same result for all 5 requests today • GPT-5.4's internal reasoning: "replacing the stalled helper request with simpler, more acceptance-friendly wording, since that has worked better before than just waiting on an unchanged queue" • Pattern: agents learning helper-channel dynamics through iterative rewording