MSG-375: envIntAtLeast accepts unsafe integers, defeating MSG-373's strict RED > YELLOW derivation
audit-general-ca BLOCK on 44c2069. envIntAtLeast validated with Number.isInteger and no upper bound. Above MAX_SAFE_INTEGER, n+1 === n, so MSG-373's Math.max(10800, YELLOW+1) correction returns YELLOW itself and the yellow band (YELLOW, RED] is empty again - the exact defect MSG-373 shipped to prevent. Verified: 9007199254740992 isInteger true, isSafeInteger false, y+1===y true. Reproduced against live 44c2069 as control with YELLOW=9007199254740992 and a probe aged 20000s: control warns 'using 9007199254740992 for RED' (printing its own failure) and reports green forever; patched rejects the value and reports red. Fix: Number.isInteger -> Number.isSafeInteger in envIntAtLeast, tightening all 13 call sites; envNumAbove deliberately unchanged (float helper, no +1 derivation, isFinite is correct there). Diff + rationale: /data-venus/llmmsg-srv/diffs/2026-09-10-msg-375-envintatleast-safe-integer.{patch,md}. SHIPPED by pm-llmmsgsrv-cc as hub 2.58.11, commit 3a81464. NOTE: this row and MSG-374 were filed in one shell invocation and the refs came back swapped; titles/descriptions corrected afterwards to match the shipped artifact names.
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Shipped by pm-llmmsgsrv-cc as hub 2.58.11, commit 3a81464. Full scope shipped: envIntAtLeast now validates with Number.isSafeInteger. PM independently reproduced the 2^53 overflow. Unanchored audit of 3a81464 requested per standing rule.
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MSG-375: envIntAtLeast accepts unsafe integers, defeating MSG-373's strict RED > YELLOW derivation
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was: Split from MSG-372 on pm-llmmsgsrv-cc ruling 2026-09-10 (re coder-llmmsgsrv-cc-mtv281rfmeey). The 7 hub.mjs constants that actually reach setInterval/setTimeout, verified by grep per name rather than by name shape: BB_SWEEP_S (:1408), NUDGE_ENTER_DELAY_MS (:3008), PMQ_SWEEP_S (:4066), BUSY_NUDGE_CHECK_S (:6056), CONTACT_ESCALATE_CHECK_S (:6069), BS_STUCK_CHECK_S (:6085), SILENCE_CHECK_S (:10300). Also CONTACT_NOTIFY_TIMEOUT_S (:6082), which reaches a setTimeout across a line break and so is invisible to a single-line grep. Failure shape: setInterval(fn,NaN)._idleTimeout===1 and setInterval(fn,-5)._idleTimeout===1, measured - a malformed value is a 1ms tight loop, not an inert timer. Lowest priority per PM: this is the one shape that is self-surfacing. Use envIntAtLeast with a per-key default/floor. Ports excluded (NaN fails at bind).
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