Build Week engineering log — July 17
Retrospective post backed by the public v3.2.8 release.
v3.2.8 closed the transport and terminal-state problems found during real Codex App work. Generated Packs moved to the installed MCP runtime_codec for dispatch materialization/verification, formal report staging, external receipt staging, and failure-fingerprint normalization.
The release also:
- distinguished an empty transport from JSON and payload errors with
INPUT_TRANSPORT_EOF_BEFORE_FRAME; - aligned terminal projections, paused heartbeat, remaining goals, and next action;
- retired an unavailable native Goal recovery path as an explicit zero-side-effect fail-closed contract.
Evidence: 605/605 deterministic tests, 80.35% branch coverage, two independent 5,000-case fuzz lanes, independent review P0/P1/P2 = 0/0/0, exact tag identity, zero source/install drift, and a real disposable App canary reaching FINALIZATION_ACKED.
Release: LoopSkill v3.2.8.
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