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bug(debug): a Codex debug bundle can miss the latest prompt body #1336
Description
Activity
Closed attempt: #1399 (branch kept; reopenable). It made a Codex debug bundle fall back from
resume-<providerSessionId>toshell-<sessionId>. Review a (P1) showed that no search order over those two directory keys is correct:- Resume first (as in fix(debug): a fresh session's debug bundle finds its own proxy run #1399): pane
p1starts fresh conversationT(shell-p1/R1); later panep2resumesT(resume-T/R2). Saving p1's bundle picksR2, which is p2's run and prompts. - Shell first: a cold-recovered pane keeps its local id and would pick its own stale fresh-run dir.
- Newest of both: still picks p2's run in the case above.
proxyEventsReadermatches directory names only;match: 'exact'means the segment string, not pane or process provenance. The real fix is a launch-time proxy run identity recorded per session: #1405. The #1399 tests (an assembler-level stub ofreadProxyEvents) and its manifest fields (requestedSessionKey,matchedSessionSegment,proxyRunDir) are reusable. The package half, codex-headless#70 (the latest request body kept beside the run), is independent.- Resume first (as in fix(debug): a fresh session's debug bundle finds its own proxy run #1399): pane
Found by review C of #1332 (#372). The behavior predates that PR.
Expected
A debug bundle for a Codex session carries the latest request body (the prompt that produced the behavior being reported), as Claude bundles do through
latest-request-body.json(#1273).Actual
The bundle's proxy section is the last 5 MiB of
proxy-events.jsonl(plus.1after a rotation, #1332). A/v1/responsesrequest followed by more than 5 MiB of response chunks or/v1/modelsrefreshes has itsbody_b64before the tail, so the bundle holds recent chunks but no prompt body.Evidence
temp/review-1332/report-c.mdfinding 1. Line by line over the live corpus:Codex has no
latest-request-body.jsonsidecar.Direction
Mirror Claude: have codex-headless's
EventsMirrorkeep the newest request body in a sidecar next to the events file (or re-emit it after each rotation).readLatestRequestBodyinproxyEventsReader.tsalready appends a sidecar.