Real gpt-5.4 agentic loop on Qwen3-30B-A3B/H20 with Stop-A enabled. Validates both
Stop-B paths: search-high-saturation (validator-authorized immediate stop) and
multi-iteration convergence. The TP1 baseline stays the per-GPU incumbent (2.90
req/s/GPU); TP/DP scaling raises raw throughput but lowers per-GPU efficiency and is
correctly never adopted (no regression). The Phase-4 authority model is exercised
live: a premature LLM stop is vetoed (validator_did_not_authorize_stop), then a later
justified stop is honored after the veto budget. EP launch-failures handled as
hard-negative evidence. Auditable reason chains throughout.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Gahow Wang
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