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djegor315-sketch
f27a30d1b6
Agent Session History exceeded its 130-second deadline on large local Codex histories. Three costs combined: excluded worker transcripts were recognized on their first line but still drained to EOF (1,011 files / ~18.3 GiB on the reported corpus), large ignored records were fully decoded and JSON.parsed, and the persisted parse cache was discarded on every app update. - Stop resumable reads the moment `session_meta` marks a worker transcript. - Skip decode + `JSON.parse` for records the parser only feeds to the timeline. The skip set is the complement of what `consumeCodexRecordLine` reads, and applies only above the bounded prefix limit, so a long opening prompt (which is the session title) still takes the exact parser. - Prove cross-volume rollout aliases from a bounded `session_meta` read routed through the WSL transcript FS gate, carrying the scan's AbortSignal, fanned out across contested candidates with bounded concurrency. - Make parse-cache schema 2 the semantic compatibility boundary so an update no longer forces a multi-gigabyte cold scan, fenced by a build-time ratchet on the persisted session shape. - Report early-stopped transcripts as their own `aiVault.scan` attribute. Verified on macOS, Ubuntu over SSH, and Windows: read volume drops 336 -> 49.5 MiB identically on all three; the Windows failing-test set is byte-identical to main. Reported corpus: 130s timeout -> 58.6s, 244 sessions, 0 issues. Fixes #17888.