feat: probe profiles, dual-probe recovery, and thinking guard - #930
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chenyme merged 4 commits intoAug 15, 2026
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Add a configurable quality-guard probe catalog (last-line / contains / regex markers). User-traffic degrade isolates immediately; restore only after a QUALITY_OK probe is healthy and includes thinking tokens. Missing thinking is a hard isolate even at normal TPS.
Short 降智 answers (30-40 tokens, reasoning=0) were skipped by the 64-token floor. Isolate those; keep sub-32 samples ignored.
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Summary
QUALITY_OKlast-line marker + throughput recipe, plus custom last-line / contains / regex).output >= 64withreasoningTokens == 0is a hardmissing_thinkingisolate, including on the QUALITY_OK recovery probe. Catches backend model swaps that keep a normal 80–200 TPS.Test plan
python3 tools/egress-quality-guard/quality_guard_test.py(40 OK)go test ./internal/application/egress/ ./internal/application/gateway/ ./internal/transport/http/egress/