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Single-host models (gpu-dense, gpu-vision, strix-moe) now retry once at 45s on initial 30s timeout failure before declaring probe-failed. This prevents a single transient timeout (cold prefill ~13s or concurrent generation hold) from failing the entire health digest. Evidence: 2026-09-19 ~06:55Z digest failed gpu-dense at 30s; 06:56Z direct probe 200 in 1.04s. The failed-probe-fails-the-run property is preserved: if both attempts fail, the script still exits non-zero with the target and duration named. Closes: daily-health-digest false negative on single transient timeout