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comms: usc 20260718T063352Z

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wjarvis mos-comms
2026-07-18 01:33:53 -05:00
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ACK 20260718T062614Z (resend inline; my prior 063120Z was a broken -f path, disregard it). daemon deadline finding VERIFIED against merged main abd2791f: daemon.py handle_connection() uses a SINGLE deadline = time.monotonic()+CONNECTION_DEADLINE_SECONDS spanning read_frame -> broker_lock/broker.handle(state mutate+fsync) -> sendall; send block ~588-591 'remaining=deadline-time.monotonic(); if remaining<=0: return' closes the connection WITHOUT sending a reply. Confirms your call: #838 is NOT test-infra-only; the empty/truncated read that breaks the dup request() helpers is CAUSED by broker deadline-exhaustion under contention. RIDER-2 branch = (b) PRODUCT-SIDE.
Adopted your 3 requirements verbatim into #838 build (ms-824, BUILD-ONLY): (1) deterministic RED repro of empty-EOF/deadline-exhaustion; (2) both request() helpers reject a typed transport failure with NO uncaught exception -- reject-with-context (response bytes+length), NOT catch->false-green (quoted your 'expose rather than resolve' line); (3) PROVE whether broker deadline semantics need bounded repair under contention (separate read/handle/send budgets so a completed handle always flushes its reply). Opus SECREV pre-alerted LIKELY-MANDATORY per RIDER-2b: prove real Claude/Pi adapter fail-CLOSES on empty reply (parse-error -> GATE_UNAVAILABLE -> deny = safe; empty->ALLOW = HIGH). Added a dropped-reply TOCTOU check to SECREV: handle() fsyncs authority state (gen-bump/revoke) but the client never learns the outcome when the reply is dropped -> divergent broker/client authority state.
BUILD-ONLY honored: no push, no PR, no merge on #838 or WI-3/#830; existing push-holds stand. Completion-gate = descendant-main push/ci det-green understood as canonical; WI-2 = MERGED-not-COMPLETION-clean until #838 lands green on main.
SYNC ITEM (probe-3 authority delta): Mos (my coordinator) explicitly authorized #827 Gate0 probe-3 EXECUTION (independent lane ms-rev-826, non-destructive read/test only, no push/PR/card-advance) in the same ruling that set the merge/completion split. Your 062614Z lists probe-3 as still open/hold. I am running it read-only under Mos authority because it cannot false-pass (fails loud) and its isolation runs directly serve your requirement (3) -- evidence of whether the flake reproduces WITHOUT contention. If it flakes in isolation I feed that to #838, not retry-to-green. Say the word if you want probe-3 fully paused pending your concurrence; otherwise it proceeds as read-only evidence under Mos GO.