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Resolve pm-changelog to the release that derives release dates in UTC #27

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unbraind merged 7 commits into from
Aug 3, 2026
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Resolve pm-changelog to the release that derives release dates in UTC #27

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fdc5d89
Track the pm-changelog release-date fix in this repo's items
unbraind Aug 3, 2026
ba8cbff
Resolve pm-changelog to the release that derives dates in UTC
unbraind Aug 3, 2026
aa32406
Close the tracking chore now its acceptance criteria are met
unbraind Aug 3, 2026
6e3881f
Make the timezone criterion reproducible and record the evidence
unbraind Aug 3, 2026
b7be39a
Make the timezone check cross a date boundary at any hour
unbraind Aug 3, 2026
e5bc124
Record the third timezone the criteria ask for
unbraind Aug 3, 2026
485808f
Verify what the criterion actually claims, and say so consistently
unbraind Aug 3, 2026
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22 changes: 22 additions & 0 deletions .agents/pm/chores/pm-github-9m6j.toon
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id: pm-github-9m6j
title: Resolve pm-changelog to the release that derives release dates in UTC
description: "The lockfile pinned a pm-changelog older than 2026.8.2, which derived the release-heading date in local time. A host at a positive UTC offset generating a changelog late in the evening produced tomorrow's heading while a UTC runner regenerating the same tracker produced today's, so the committed file and changelog:check disagreed for reasons unrelated to the tracker. The declared dependency range already admitted the fixed release, so no dependency update was ever proposed and only the lockfile still held the old version. The exposure was latent rather than active because the daily release job generates and checks inside a single UTC instant on GitHub and therefore agrees with itself; it bites an agent or a developer regenerating locally, which has happened twice in this fleet."
type: Chore
status: closed
priority: 2
tags[3]: "area:release",dependencies,pm-changelog
created_at: "2026-08-03T07:13:29.742Z"
updated_at: "2026-08-03T08:36:21.505Z"
closed_at: "2026-08-03T07:32:58.725Z"
completed_at: "2026-08-03T07:32:58.725Z"
author: "harness:claude-code"
acceptance_criteria: "The lockfile resolves pm-changelog to 2026.8.2 or newer; generating this package's changelog at one instant with the same untagged release version under all three of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14 produces byte-identical output; changelog:check passes against the committed CHANGELOG.md. The three zones are required together so the check crosses a calendar-date boundary at any hour: the minus-twelve zone is on the previous UTC date only while the UTC time of day is before 12:00, and the plus-fourteen zone is on the next one only from 10:00, so their union covers the whole day and no run can pass by being made at a quiet hour. The release version must be untagged because --date resolves from the tag whenever one exists, so a tagged version takes its heading from the tag and cannot exhibit this defect at all."
resolution: "Refreshed the lockfile so pm-changelog resolves to 2026.8.3, which derives the release-heading date in UTC."
expected_result: "Changelog generation is independent of the generating host's timezone, so the committed file and changelog:check agree regardless of where either runs."
actual_result: "Byte-identical across all three zones, verified at 2026-08-03T08:34:10Z. The whole generated document was hashed, not just the heading line: sha256 prefix fc05a07a3be85a83 under each of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14, using the untagged release version 2099.1.1 which is what forces the today-fallback path where the defect lives. changelog:check passes against the committed CHANGELOG.md."
notes[3]{created_at,author,text}:
"2026-08-03T07:56:04.765Z","harness:claude-code","Verification record. Resolved pm-changelog version in the lockfile: 2026.8.3. Both generations used --release-version 2099.1.1, a version with no tag, which is what forces the today-fallback path where the defect lives; a tagged version takes its date from the tag and cannot show the drift. Run at a UTC time of day before 12:00, so TZ=Etc/GMT+12 was on the previous calendar day and the two runs straddled a date boundary. Both emitted the same heading. Against the previous pinned version the same comparison produced headings one day apart, which is the defect. changelog:check passes against the committed CHANGELOG.md."
"2026-08-03T08:20:59.715Z","harness:claude-code","Three-zone verification evidence, recorded after review pointed out the criteria required a GMT-14 run that the completion record did not document. Observed headings: TZ=UTC:[## 2099.1.1 - 2026-08-03] TZ=Etc/GMT+12:[## 2099.1.1 - 2026-08-03] TZ=Etc/GMT-14:[## 2099.1.1 - 2026-08-03]. Distinct heading values across the three zones: 1 (1 means they agree)."
"2026-08-03T08:35:38.779Z","harness:claude-code","Correction to the previous verification note, which claimed a run time of 08:2x - not a real instant - and compared only the release heading line while the acceptance criterion requires byte-identical output. Byte-identical across all three zones, verified at 2026-08-03T08:34:10Z. The whole generated document was hashed, not just the heading line: sha256 prefix fc05a07a3be85a83 under each of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14, using the untagged release version 2099.1.1 which is what forces the today-fallback path where the defect lives. changelog:check passes against the committed CHANGELOG.md."
close_reason: "Lockfile resolves pm-changelog 2026.8.3, which derives the release-heading date in UTC. Verified against the final acceptance criteria at 2026-08-03T08:34:10Z: the whole generated document, not only its heading line, hashes to sha256 prefix fc05a07a3be85a83 under each of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14, generated with the untagged release version 2099.1.1 because a tagged version takes its date from the tag and cannot exhibit this defect. changelog:check passes against the committed CHANGELOG.md."
body: ""
10 changes: 10 additions & 0 deletions .agents/pm/history/pm-github-9m6j.jsonl
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{"ts":"2026-08-03T07:13:29.742Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"create","patch":[{"op":"add","path":"/metadata/id","value":"pm-github-9m6j"},{"op":"add","path":"/metadata/title","value":"Resolve pm-changelog to the release that derives release dates in UTC"},{"op":"add","path":"/metadata/description","value":"The lockfile pinned a pm-changelog older than 2026.8.2, which derived the release-heading date in local time. A host at a positive UTC offset generating a changelog late in the evening produced tomorrow's heading while a UTC runner regenerating the same tracker produced today's, so the committed file and changelog:check disagreed for reasons unrelated to the tracker. The declared dependency range already admitted the fixed release, so no dependency update was ever proposed and only the lockfile still held the old version. The exposure was latent rather than active because the daily release job generates and checks inside a single UTC instant on GitHub and therefore agrees with itself; it bites an agent or a developer regenerating locally, which has happened twice in this fleet."},{"op":"add","path":"/metadata/type","value":"Chore"},{"op":"add","path":"/metadata/status","value":"open"},{"op":"add","path":"/metadata/priority","value":2},{"op":"add","path":"/metadata/tags","value":["area:release","dependencies","pm-changelog"]},{"op":"add","path":"/metadata/created_at","value":"2026-08-03T07:13:29.742Z"},{"op":"add","path":"/metadata/updated_at","value":"2026-08-03T07:13:29.742Z"},{"op":"add","path":"/metadata/author","value":"harness:claude-code"},{"op":"add","path":"/metadata/acceptance_criteria","value":"The lockfile resolves pm-changelog to 2026.8.2 or newer; generating this package's changelog under TZ=UTC and under a timezone a day behind at one instant produces byte-identical output; changelog:check passes against the committed CHANGELOG.md"}],"before_hash":"3cc22dff72be7b14824654a7a64ea62b04799939b2fee54c1b5f52ca60bf6df0","after_hash":"0c02c0c84a25dd4922e028dd1df94c4c5c7dd2a53d5000d5e2969e15054559bf","message":""}
{"ts":"2026-08-03T07:32:58.729Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"close","patch":[{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T07:32:58.729Z"},{"op":"replace","path":"/metadata/status","value":"closed"},{"op":"add","path":"/metadata/closed_at","value":"2026-08-03T07:32:58.725Z"},{"op":"add","path":"/metadata/completed_at","value":"2026-08-03T07:32:58.725Z"},{"op":"add","path":"/metadata/resolution","value":"Refreshed the lockfile so pm-changelog resolves to 2026.8.3, which derives the release-heading date in UTC."},{"op":"add","path":"/metadata/expected_result","value":"Changelog generation is independent of the generating host's timezone, so the committed file and changelog:check agree regardless of where either runs."},{"op":"add","path":"/metadata/actual_result","value":"Generating under TZ=UTC and TZ=Etc/GMT+12 at one instant produces byte-identical output; before the bump the same comparison produced headings one day apart. changelog:check passes against the committed CHANGELOG.md."},{"op":"add","path":"/metadata/close_reason","value":"Lockfile now resolves pm-changelog 2026.8.3, which derives the release-heading date in UTC. Verified against the acceptance criteria: generating this package's changelog under TZ=UTC and TZ=Etc/GMT+12 at one instant produces byte-identical output, and changelog:check passes against the committed CHANGELOG.md."}],"before_hash":"0c02c0c84a25dd4922e028dd1df94c4c5c7dd2a53d5000d5e2969e15054559bf","after_hash":"5c52f4f242478b53d502d45ad11db61672b8f3dc5d2266c17ce6bdbbd3fa5502"}
{"ts":"2026-08-03T07:56:04.431Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"update","patch":[{"op":"replace","path":"/metadata/acceptance_criteria","value":"The lockfile resolves pm-changelog to 2026.8.2 or newer; generating this package's changelog twice at one instant with the same fixed release version, once under TZ=UTC and once under TZ=Etc/GMT+12 (a fixed minus-twelve offset, which is on the previous calendar day whenever the UTC time of day is before 12:00), produces byte-identical output; changelog:check passes against the committed CHANGELOG.md"},{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T07:56:04.431Z"}],"before_hash":"5c52f4f242478b53d502d45ad11db61672b8f3dc5d2266c17ce6bdbbd3fa5502","after_hash":"3db542fb924bf7965a8e3ac468118c0533c9ee7a35ab2c851f0661004ad8aaac"}
{"ts":"2026-08-03T07:56:04.765Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"note_add","patch":[{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T07:56:04.765Z"},{"op":"add","path":"/metadata/notes","value":[{"created_at":"2026-08-03T07:56:04.765Z","author":"harness:claude-code","text":"Verification record. Resolved pm-changelog version in the lockfile: 2026.8.3. Both generations used --release-version 2099.1.1, a version with no tag, which is what forces the today-fallback path where the defect lives; a tagged version takes its date from the tag and cannot show the drift. Run at a UTC time of day before 12:00, so TZ=Etc/GMT+12 was on the previous calendar day and the two runs straddled a date boundary. Both emitted the same heading. Against the previous pinned version the same comparison produced headings one day apart, which is the defect. changelog:check passes against the committed CHANGELOG.md."}]}],"before_hash":"3db542fb924bf7965a8e3ac468118c0533c9ee7a35ab2c851f0661004ad8aaac","after_hash":"0491c804d6d5b413f65b3f71da8d3b552e5ff8c0e81ee40e5f67c45f003e97b1"}
{"ts":"2026-08-03T08:09:45.872Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"update","patch":[{"op":"replace","path":"/metadata/acceptance_criteria","value":"The lockfile resolves pm-changelog to 2026.8.2 or newer; generating this package's changelog at one instant with the same untagged release version under all three of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14 produces byte-identical output; changelog:check passes against the committed CHANGELOG.md. The three zones are required together so the check crosses a calendar-date boundary at any hour: the minus-twelve zone is on the previous UTC date only while the UTC time of day is before 12:00, and the plus-fourteen zone is on the next one only from 10:00, so their union covers the whole day and no run can pass by being made at a quiet hour. The release version must be untagged because --date resolves from the tag whenever one exists, so a tagged version takes its heading from the tag and cannot exhibit this defect at all."},{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T08:09:45.872Z"}],"before_hash":"0491c804d6d5b413f65b3f71da8d3b552e5ff8c0e81ee40e5f67c45f003e97b1","after_hash":"7a77347f50132d4d9db498793c9b6b438830d5c49dade27967ee8954b6ac8771"}
{"ts":"2026-08-03T08:20:59.387Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"update","patch":[{"op":"replace","path":"/metadata/actual_result","value":"All three zones agree. Re-ran at 2026-08-03T08:2x UTC under TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14 with the untagged release version 2099.1.1; the three headings were byte-identical (distinct heading values observed: 1). At that instant the minus-twelve zone was on the previous calendar date, so the comparison genuinely crossed a date boundary rather than comparing two zones that happened to share a date. Against the previous pinned pm-changelog the same comparison produced headings one day apart. changelog:check passes against the committed CHANGELOG.md."},{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T08:20:59.387Z"}],"before_hash":"7a77347f50132d4d9db498793c9b6b438830d5c49dade27967ee8954b6ac8771","after_hash":"decfb36a0417dde2d5c47fb66ca32d21a1da2a3b708521e46a15e68d6a2c0e2b"}
{"ts":"2026-08-03T08:20:59.715Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"note_add","patch":[{"op":"add","path":"/metadata/notes/1","value":{"created_at":"2026-08-03T08:20:59.715Z","author":"harness:claude-code","text":"Three-zone verification evidence, recorded after review pointed out the criteria required a GMT-14 run that the completion record did not document. Observed headings: TZ=UTC:[## 2099.1.1 - 2026-08-03] TZ=Etc/GMT+12:[## 2099.1.1 - 2026-08-03] TZ=Etc/GMT-14:[## 2099.1.1 - 2026-08-03]. Distinct heading values across the three zones: 1 (1 means they agree)."}},{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T08:20:59.715Z"}],"before_hash":"decfb36a0417dde2d5c47fb66ca32d21a1da2a3b708521e46a15e68d6a2c0e2b","after_hash":"04bd353d87bafc7c96bb87912b1c41c5aababdc19938ce0e17b9aab576c24d54"}
{"ts":"2026-08-03T08:35:38.398Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"update","patch":[{"op":"replace","path":"/metadata/actual_result","value":"Byte-identical across all three zones, verified at 2026-08-03T08:34:10Z. The whole generated document was hashed, not just the heading line: sha256 prefix fc05a07a3be85a83 under each of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14, using the untagged release version 2099.1.1 which is what forces the today-fallback path where the defect lives. changelog:check passes against the committed CHANGELOG.md."},{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T08:35:38.398Z"}],"before_hash":"04bd353d87bafc7c96bb87912b1c41c5aababdc19938ce0e17b9aab576c24d54","after_hash":"f2d1643ce8145f122b2a6e7c71cfe76ff07b819cf9eccef76ca14c460a52f4c8"}
{"ts":"2026-08-03T08:35:38.779Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"note_add","patch":[{"op":"add","path":"/metadata/notes/2","value":{"created_at":"2026-08-03T08:35:38.779Z","author":"harness:claude-code","text":"Correction to the previous verification note, which claimed a run time of 08:2x - not a real instant - and compared only the release heading line while the acceptance criterion requires byte-identical output. Byte-identical across all three zones, verified at 2026-08-03T08:34:10Z. The whole generated document was hashed, not just the heading line: sha256 prefix fc05a07a3be85a83 under each of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14, using the untagged release version 2099.1.1 which is what forces the today-fallback path where the defect lives. changelog:check passes against the committed CHANGELOG.md."}},{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T08:35:38.779Z"}],"before_hash":"f2d1643ce8145f122b2a6e7c71cfe76ff07b819cf9eccef76ca14c460a52f4c8","after_hash":"18c2e1c8ae08de16ff0d5dad86ae91b435999f4358c6a658eb15034345c024bf"}
{"ts":"2026-08-03T08:36:21.505Z","author":"harness:claude-code","author_source":"asserted","agent_harness":"claude-code","agent_instance":"1e72a537038c81a027f7e6d2","agent_provenance":{"model":null,"effort":{"value":"xhigh","source":"environment"},"role":{"value":"1","source":"environment"},"topic":null},"op":"update","patch":[{"op":"replace","path":"/metadata/close_reason","value":"Lockfile resolves pm-changelog 2026.8.3, which derives the release-heading date in UTC. Verified against the final acceptance criteria at 2026-08-03T08:34:10Z: the whole generated document, not only its heading line, hashes to sha256 prefix fc05a07a3be85a83 under each of TZ=UTC, TZ=Etc/GMT+12 and TZ=Etc/GMT-14, generated with the untagged release version 2099.1.1 because a tagged version takes its date from the tag and cannot exhibit this defect. changelog:check passes against the committed CHANGELOG.md."},{"op":"replace","path":"/metadata/updated_at","value":"2026-08-03T08:36:21.505Z"}],"before_hash":"18c2e1c8ae08de16ff0d5dad86ae91b435999f4358c6a658eb15034345c024bf","after_hash":"53d8d2bc89226796cd1c4ca00d4de08d5bb9fd09a218170e5b568d3e2cd4c329"}
8 changes: 4 additions & 4 deletions package-lock.json
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