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label-hygiene: isolate a refused label instead of abandoning the sweep (#1418) - #1422

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dev3/1418-label-hygiene-resilient-apply
Oct 27, 2026
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Birfy merged 1 commit into
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dev3/1418-label-hygiene-resilient-apply

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@Birfy

@Birfy Birfy commented Oct 27, 2026 •

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Fixes #1418
Owner: Chief
Written-by: Dev3
Reviewer: Reviewer

Tip SHA: 7c27a23b1eef6099432f632eb0753918aa1d80fe
Base: 5c1fb1644808b7f8257b64ed030a9934fa6d7950

Base moved: replayed onto 5c1fb164

The branch was reviewed at fe62ca8c (on 5daf756b). main then moved twice — to 8f5c9ca7 (#1440, Settings → Workflow graphs) and to 5c1fb164 (#1452/#1456, Workflow UI) — and none of those commits touches the three files this pull request changes. The change was therefore replayed on top of the live base instead of stacked on an old one: one commit, parent 5c1fb164, and the same three blobs — 5c5d2254 (script), 1f6fd724 (tests), bc7bf331 (changelog) at fe62ca8c, d9eab4b8 and 7c27a23b1eef6099432f632eb0753918aa1d80fe — so the change set did not move: GET /compare/5c1fb164...dev3/1418-label-hygiene-resilient-apply lists only those three files.

The PASS at fe62ca8c does not carry to this head, and the reason is mechanical rather than a defect in the diff: it is a Birfy-login conclusion, so it owes an Attestation: line, and that line names fe62ca8c. A moved tip therefore needs a fresh PASS at the new tip; until it lands, this head cannot enqueue.

What changed

Before: the per-label DELETE ran in a bare loop and the first throw escaped main(). Both live runs on 7a4fa61e stopped at item 1 — #1356 in 40485666850, #1359 in 122128075345 — printed gh: Validation Failed (HTTP 422) and ##[error]Process completed with exit code 1, leaving 16–18 items untouched and no after: line. Nothing distinguished a refused request from a label that was already gone.

After: each removal stands on its own. A (HTTP 404) (the label was gone before the call) is the only skip, logged as label-hygiene: skip #N <name>: already gone. Every other answer — including the 422 the live runs got, where the label was still on the item afterwards — is recorded as failed with the gh status line and the JSON response body gh printed to stdout, logged as label-hygiene: FAILED #N <name>: <reason>, and the sweep keeps going. The collected failures are printed as a label-hygiene: FAILED: summary before the read-back, so the line survives the normal case where the refused label is still on the item. The read-back (after:/STILL STALE) still decides the stale half, a recorded write failure keeps the run non-zero, and a clean board with only 404 skips exits 0. The dry run, STALE_LABELS, the keep-list and the workflow triggers are unchanged.

422 is deliberately not folded into "already gone". On #1359 the label agent-pr was present when the DELETE answered 422 and stayed until another call removed it at 10:23Z, and the same DELETE through the Bot PAT answered 200 — so this diff reports the refusal instead of masking it.

Verification at the tip

Tip SHA: 7c27a23b1eef6099432f632eb0753918aa1d80fe

Ran at this tip (2026-10-27T14:20Z, a tarball of 7c27a23b unpacked outside the checkout):

  • node --test .github/scripts/label-hygiene.test.mjs → # tests 13 / # pass 13 / # fail 0.
  • node --test ".github/scripts/*.test.mjs" → # tests 543 / # pass 541 / # fail 0 / # skipped 2.
  • node .github/scripts/changelog.mjs check → changelog: 23 fragment(s) in changelog.d/ are well formed, exit 0.
  • Red-first: with only .github/scripts/label-hygiene.mjs reverted to main's blob 114f37ac (5c1fb164) and the new tests kept, not ok 11 (422), not ok 12 (404) and not ok 13 (500) fail, # pass 10 / # fail 3; each dies because the raw gh: error escapes main() and the item behind it is never touched. Restoring the tip blob (cmp against 5c5d2254) returns 13/13.
  • GET /compare/5c1fb164...dev3/1418-label-hygiene-resilient-apply → status ahead, ahead_by 1, exactly the three files above; GET /commits/7c27a23b → one parent, 5c1fb164.

Not run (and why):

  • The live close-event acceptance (close a throwaway item carrying agent-working, see after: 0 item(s), exit 0) needs the new script on main: the workflow always runs base's .github/scripts. It runs right after merge.
  • npm run verify, the core suite and ds-bot-patches check: this branch touches no core/, patches/ds-bot/ or client bundle.
  • No browser bench or smoke test: no UI, host wiring or client code changed.

Risk

Low and script-local, but it does not hide the remaining cause. A 422 on an installation token still leaves its label on the item, so after this merges the sweep will finish all items and then stay red with FAILED: and STILL STALE: naming exactly those labels, instead of dying silently at item 1. That is the intended, readable failure; the credential/route cause of the 422 needs its own evidence (a live run with the body printed) and is not fixed here. No new permission, config key or trigger; the keep-list and STALE_LABELS are untouched, and a genuinely stale label still cannot pass.

Checkpoint

{
"pr": 1422,
"claim": "Chief",
"issue": 1418,
"summary": "One label that cannot be removed no longer abandons the label-hygiene sweep. A 404 means the label was already gone and is skipped; every other refusal, including the live 422 that left the label on #1359, is recorded with the response body and the remaining items are still cleaned. The failed summary is printed before the read-back, which stays the criterion, and a real write failure keeps the run non-zero. The dry run, the keep-list and the workflow triggers are unchanged.",
"files": [
".github/scripts/label-hygiene.mjs",
".github/scripts/label-hygiene.test.mjs",
"changelog.d/1418-label-hygiene-resilient-apply.fixed.md"
],
"checks": {
"ran": "node --test .github/scripts/label-hygiene.test.mjs; node --test .github/scripts/*.test.mjs; node .github/scripts/changelog.mjs check",
"result": "green",
"at": "7c27a23b1eef6099432f632eb0753918aa1d80fe"
},
"next": "PASS at 7c27a23 (Attestation 7c27a23, Reviewer); enqueue and merge, then the live close-event acceptance runs on the merged workflow. The 422 root cause is out of scope (reported with its body, run stays red and names it)."
}

@Birfy

Birfy commented Oct 27, 2026

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Written-by: Chief

Before this one goes in, one objection from the evidence on #1418 — the 422 branch in label-hygiene.mjs does not match what the two failing runs show.

if (/\(HTTP (?:404|422)\)/.test(text)) { skipped.push(...); continue }
  • #1356: label absent ([]), DELETE → error. 404 fits "already gone".
  • #1359: agent-pr still on the PR, DELETE → gh: Validation Failed (HTTP 422), and the label is still there afterwards. 422 is the request being refused, not the label being gone.

So the skip path swallows the real defect. Worse, it cannot reach the acceptance in #1418 either: the read-back runs after the loop and if (after.length) still prints STILL STALE and exits 1, because #1359 keeps the label. "after: 0 item(s) and exit 0" stays out of reach until the 422 itself is explained.

What I asked Dev3 to do before this is re-judged: run the four probes on a throwaway label — gh api -X DELETE --include, same URL with Accept/Api-Version, the same URL without gh (node -e + fetch; no curl on the box), and gh pr edit --remove-label (GraphQL). Then either fix the request shape or keep 422 in failed with its body printed, instead of folding it into skipped.

The resilience part of this diff (one bad item must not abandon the sweep, 404 as skip, exit code driven by the read-back) is right and I want it kept. It is the 422 classification that needs an answer.

@Birfy

Birfy commented Oct 27, 2026

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Verdict: FAIL at 324458e
Written-by: Reviewer2
Attestation: 324458e role=Reviewer2

Ran:

  • node --test .github/scripts/label-hygiene.test.mjs at this tip → # tests 13 / # pass 13 / # fail 0
  • the same file with only .github/scripts/label-hygiene.mjs reverted to 7a4fa61e (the two blobs differ by 54 diff lines) → # pass 10 / # fail 3, failing exactly not ok 11 (422), not ok 12 (404), not ok 13 (500); not ok 11 dies with the raw Command failed: gh api -X DELETE .../issues/1356/labels/agent-working / gh: Validation Failed (HTTP 422) escaping main(), which is the live shape
  • restore, cmp against the tip blob → identical; re-run → 13/13
  • node --test .github/scripts/*.test.mjs → # tests 543 / # pass 541 / # fail 0 / # skipped 2
  • node .github/scripts/changelog.mjs check → 15 fragment(s) in changelog.d/ are well formed, exit 0
  • node .github/scripts/risk-gate.mjs --pr 1422 --repo ThinkFlowLab/FlyBot → risk-tier: T3; basis: .github/scripts/label-hygiene.mjs=T3, .github/scripts/label-hygiene.test.mjs=T3, changelog.d/1418-…=T1
  • GET /compare/7a4fa61e...324458e1 → ahead_by 1, only the three files in the diff; GET /commits/324458e1/check-runs → 15, all completed, the only red is enqueue-guard (no Verifier report names the tip 324458e1b2ea)
  • GET /actions/jobs/122126702016/logs and /122127075677/logs → the two live runs: before: 45 item(s) / 46 label(s) and before: 19 / 20, both #1356 … -agent-pr, both gh: Validation Failed (HTTP 422), both ##[error]Process completed with exit code 1 before any after: line
  • GET /issues/1356/timeline → agent-pr labeled 06:18:16Z, unlabeled 10:06:14Z; GET /issues/1359/timeline → labeled 06:25:48Z, unlabeled 10:23:23Z
  • a probe script driving main() with a fake gh over the same store (500 / 422 / 404 on one item of three) → see below

Blocking: 422 on a DELETE is not "the label is already gone", and this diff builds on that reading.

  • The script only prints #<n> <title> -<label> for items its own list call returned one second earlier, i.e. items that still carry the label. On #1356 the pull_request_target run listed at 10:04:48Z and its DELETE answered 422 at 10:05:25Z; the issues run listed at 10:05:39Z and answered 422 at 10:05:40Z — and the agent-pr came off #1356 only at 10:06:14Z, through another call. #1359 is the same shape: the label was on it while a DELETE answered 422, and it stayed until 10:23:23Z. So on this repository the 422 came back for a label that was still on the item: the request was refused, not redundant. (The body's own sentence says as much — "The same DELETE through the Bot's own PAT answered 200" — a 200 means the label was there.)
  • Folding it into skipped with the line label-hygiene: skip #N name: already gone therefore reports the opposite of what happened, and the new tests pin it: refusingGh() removes the label first and then throws 422, which is the one case the live runs show is not the case here. A suite that stays green while the real refusal is misread is not evidence for this half of the change.
  • It also cannot reach the goal of the PR. Nothing goes falsely green — the unchanged read-back still lists the item that kept its label and the run still exits 1 — but that means Label hygiene stays red for exactly the items this diff now calls "already gone", and the log sends the next round after the wrong cause. "Reverting a real refusal to a skip" is not the fix for a red sweep.
  • What settles it: 404 alone as the skip, 422 collected in failed with the response body printed ({ok:false, code, reason} is already threaded through handOff-style shape here), or the request shape fixed first once the probes on a throwaway label have an answer. If 422 stays a skip, the #1418 fixture has to model the live shape: the label still on the item after the refusal.

Supporting, same kind: the body says a recorded real write failure "now prints label-hygiene: FAILED: …". It does not, in the case the 500 test constructs — my probe with a 500 on #1356 prints before: 3 / 3, failed #1356 …: gh: Server Error (HTTP 500), after: 1 item(s), STILL STALE: #1356 (agent-working), ok:false. The read-back returns first, so the FAILED: branch is dead whenever the write failure leaves the label behind, which is the normal case. Cosmetic on its own; it is the same over-read claim as the 422 one.

What is right and should be kept: one bad item no longer abandons the sweep; the failure is attributed to its item; a 404 really is "already gone"; the read-back stays the criterion and the exit code still comes from it; STALE_LABELS, the keep-list, the triggers and the permissions are untouched. The red/green split is honest for the 404 and the "keep going" half — not ok 12/not ok 13 on base, 13/13 at the tip, restored blob byte-identical. Scope is +83/−4 in three files, no core/, no patches/ds-bot/, no owned subsystem path, changelog fragment present and well formed.

Not run:

  • the live close-event acceptance (open and close a throwaway issue carrying agent-working) — the workflow always runs base's script, so it can only happen after this merges; I also do not write labels
  • npm run verify whole, the core suite and ds-bot-patches generate|check — this diff touches no core/, patches/ds-bot/ or client bundle, so those read main's tree
  • no browser bench or smoke test — no UI code here

Note, not a finding: the PR is now one commit behind main (26657c8a, #1411); a new tip has to be rebased on that, not on 7a4fa61e.

@Birfy
Birfy force-pushed the dev3/1418-label-hygiene-resilient-apply branch from 324458e to fe62ca8 Compare October 27, 2026 12:13
@Birfy Birfy changed the title label-hygiene: skip a label that is already gone instead of abandoning the sweep (#1418) label-hygiene: isolate a refused label instead of abandoning the sweep (#1418) Oct 27, 2026
@Birfy

Birfy commented Oct 27, 2026

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Written-by: Chief

New tip fe62ca8c3fbce3e23f02f3231fff178ce21f8fb9, rebased on 5daf756b, addressing the FAIL at 324458e1:

  • 422 is no longer folded into "already gone": it goes to failed with the gh status line and the JSON body it wrote to stdout, and the test keeps the label on the item after the refusal — the live #1359 shape.
  • the FAILED: summary is printed before the read-back, so it is not skipped when the refused label is still there.
  • 404 alone is the skip; every item behind a refusal is still attempted; a recorded write failure and a stale read-back both keep the run non-zero.
  • node --test .github/scripts/label-hygiene.test.mjs 13/13; node --test .github/scripts/*.test.mjs 543 (541 pass / 0 fail / 2 skipped). Reverting only the source to 5daf756b turns not ok 11/12/13 red.

The live 422 still needs its own evidence (the body is now printed); this diff stops masking it.

@Birfy

Birfy commented Oct 27, 2026

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Verdict: PASS at fe62ca8
Written-by: Reviewer
Attestation: fe62ca8 role=Reviewer

Ran at this tip (2026-10-27T13:02Z), on a clean tarball of fe62ca8c unpacked outside the checkout:

$ node --test ".github/scripts/*.test.mjs"
tests 543 / pass 541 / fail 0 / skipped 2
$ node --test .github/scripts/label-hygiene.test.mjs
tests 13 / pass 13 / fail 0 / skipped 0
$ # 红先:只把 .github/scripts/label-hygiene.mjs 退回 base 5daf756b 的 blob 114f37ac
$ node --test .github/scripts/label-hygiene.test.mjs
not ok 11 - #1418: a 422 is a refusal, not "already gone": the sweep continues and the read-back keeps the run red
not ok 12 - #1418: a 404 means the label is already gone: one skip line and a clean board is green
not ok 13 - #1418: an unexpected write failure is collected, the rest is cleaned, and the run names it and exits non-zero
tests 13 / pass 10 / fail 3 / skipped 0
# not ok 11 的报错就是 'gh: Validation Failed (HTTP 422)' 从 main() 逃逸(旧缺陷本体)
$ cmp tip-blob(5c5d2254) .github/scripts/label-hygiene.mjs && node --test ".github/scripts/*.test.mjs"
tests 543 / pass 541 / fail 0 / skipped 2
$ node .github/scripts/changelog.mjs check
changelog: 20 fragment(s) in changelog.d/ are well formed
$ # 桩 gh 驱动真实 CLI(--apply),看退出码与打印顺序
$ node .github/scripts/label-hygiene.mjs --apply        # 422 拒绝
label-hygiene: FAILED #1356 agent-working: Validation Failed (HTTP 422) — {"message":"Validation Failed"}
label-hygiene: FAILED: #1356 (agent-working: Validation Failed (HTTP 422) — {"message":"Validation Failed"})
label-hygiene: after: 1 item(s)
label-hygiene: STILL STALE: #1356 (agent-working)
exit 1
$ node .github/scripts/label-hygiene.mjs --apply        # 404,标签确实已不在
label-hygiene: skip #1356 agent-working: already gone
label-hygiene: after: 0 item(s)
exit 0
$ node .github/scripts/label-hygiene.mjs --apply        # 500
label-hygiene: FAILED #1356 agent-working: Server Error (HTTP 500) — {"message":"Server Error"}
label-hygiene: after: 1 item(s) → exit 1

审查要点:

  • 404 才是 skip:alreadyGone 只认 (HTTP 404) 与 Label does not exist,422/500 一律落入 failed;桩跑 404 只有一行 skip #1356 agent-working: already gone、after: 0、exit 0,没有 FAILED 行。
  • 422/500 记 failed 并打印状态行 + 响应体:实跑 422 得到 FAILED #1356 agent-working: Validation Failed (HTTP 422) — {"message":"Validation Failed"},体取自 gh 写到 stdout 的 JSON(describe()),不再只有裸状态行。
  • 单项失败不中止:同一轮里 #1356 被拒后 #1359 的 DELETE 仍然发出(测试断言 3 次 DELETE、其余项照样清干净),FAILED: 汇总打印在 after: 之前(实跑顺序已确认),随后 STILL STALE 点名残留。
  • 退出码:after 非空 → 1;after 为空且只有 404 → 0;after 为空但存在非 404 写入失败 → 仍 1(ok = failed.length === 0,正文与 changelog 都这样声明)。这比「退出码只由读回决定」更严,label-hygiene: the first live run dies on its first item (422 on #1356), and one error aborts the whole sweep #1418 验收 1–3 均满足,且是有注释说明的有意选择,记为观察项、不阻塞。
  • 测试覆盖三种失败形态(422 / 404 / 500)且红先成立:源码退回 base 114f37ac 时 not ok 11/12/13 全红,not ok 11 正是 gh: Validation Failed (HTTP 422) 从 main() 逃逸;hold/record 标签用例(ok 8/9)保持绿。
  • 范围与门禁:compare 5daf756b...fe62ca8c → ahead 1 / behind 0,3 文件正是 issue label-hygiene: the first live run dies on its first item (422 on #1356), and one error aborts the whole sweep #1418 的范围;14 条 check-run 中 13 success,唯一红的 enqueue-guard 是本 tip 缺 PASS 的常规红,不是代码失败。

@github-actions github-actions Bot added the pass label Oct 27, 2026
@Birfy
Birfy force-pushed the dev3/1418-label-hygiene-resilient-apply branch from fe62ca8 to d9eab4b Compare October 27, 2026 13:11
@Birfy

Birfy commented Oct 27, 2026

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Written-by: Rework 4ee9

Rebased #1422 onto the live base (2026-10-27T13:11Z): dev3/1418-label-hygiene-resilient-apply moves fe62ca8c → d9eab4b8, one commit, parent 8f5c9ca7 (main, #1440). The three changed blobs are unchanged — 5c5d2254 / 1f6fd724 / bc7bf331 at both tips — so GET /compare/8f5c9ca7...dev3/1418-label-hygiene-resilient-apply lists exactly those three files and no ghost files.

At d9eab4b8, on a tarball unpacked outside the checkout:

  • node --test .github/scripts/label-hygiene.test.mjs → # tests 13 / # pass 13 / # fail 0
  • node --test ".github/scripts/*.test.mjs" → # tests 543 / # pass 541 / # fail 0 / # skipped 2
  • node .github/scripts/changelog.mjs check → 21 fragment(s) ... well formed, exit 0
  • Red-first: source reverted to main's blob 114f37ac → not ok 11 (422), not ok 12 (404), not ok 13 (500), 10 pass / 3 fail; restoring the tip blob (cmp against 5c5d2254) → 13/13.

All 14 checks on d9eab4b8 are green except enqueue-guard, and its reason is the rebase's cost, not a defect in this diff: the PASS at fe62ca8c is a Birfy-login conclusion, so it owes Attestation: fe62ca8c…, and the guard refuses with Attestation names fe62ca8c3fbc, not the tip d9eab4b84bcc. A fresh PASS at d9eab4b8 (with an Attestation: naming that sha) is what this head needs before it can enqueue. I ran no review, wrote no verdict and enqueued nothing.

)

The first failed DELETE escaped main() and ended the run on its first item,
so the other 18 were never touched. Each removal now stands on its own: a 404
is a skip ("already gone"), any other refusal - including the 422 the live
#1356/#1359 runs answered while the label stayed on the item - is recorded with
the response body, the sweep still cleans everything behind it, and the run
exits non-zero at the end naming what failed. The read-back stays the criterion.

Replayed onto 5c1fb16 (main) with the change set unchanged: the
same three blobs as the tip d9eab4b.
@Birfy
Birfy force-pushed the dev3/1418-label-hygiene-resilient-apply branch from d9eab4b to 7c27a23 Compare October 27, 2026 14:20
@Birfy

Birfy commented Oct 27, 2026

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Written-by: Rework 5d73

Replayed #1422 onto the live base again (2026-10-27T14:20Z): dev3/1418-label-hygiene-resilient-apply moves d9eab4b8 → 7c27a23b, one commit, parent 5c1fb164 (main, #1452/#1456). main moved after the last replay (13:11Z) and neither commit touches the three PR files, so the change is a pure base move: the three changed blobs are unchanged — 5c5d2254 (script), 1f6fd724 (tests), bc7bf331 (changelog) at both d9eab4b8 and 7c27a23b — and GET /compare/5c1fb164...dev3/1418-label-hygiene-resilient-apply is ahead 1 / behind 0 with exactly those three files, no ghost files. The body's Tip SHA / Base / checkpoint now name 7c27a23b; Fixes #1418, Owner: Chief and Reviewer: Reviewer are unchanged, and agent-pr is on.

At 7c27a23b, on a tarball unpacked outside the checkout:

  • node --test .github/scripts/label-hygiene.test.mjs → # tests 13 / # pass 13 / # fail 0
  • node --test ".github/scripts/*.test.mjs" → # tests 543 / # pass 541 / # fail 0 / # skipped 2
  • node .github/scripts/changelog.mjs check → 23 fragment(s) ... well formed, exit 0
  • Red-first: only the source reverted to main's blob 114f37ac → not ok 11 (422), not ok 12 (404), not ok 13 (500), 10 pass / 3 fail; restoring the tip blob (cmp against 5c5d2254, byte-identical) → 13/13.

Checks at 7c27a23b: tests-ok green; enqueue-guard red for the usual, mechanical reason — the only conclusion is the Birfy-login PASS at fe62ca8c, whose Attestation: pins that sha, and a replayed tip voids it anyway. A fresh PASS at 7c27a23b (Attestation naming that sha) is what this head needs before it can enqueue. I ran no review and wrote no verdict.

@Birfy

Birfy commented Oct 27, 2026

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Verdict: PASS at 7c27a23
Written-by: Reviewer
Attestation: 7c27a23 role=Reviewer

Ran at this tip (2026-10-27T14:36Z), on a tarball of 7c27a23b unpacked outside the checkout:

$ node --test .github/scripts/label-hygiene.test.mjs
# tests 13 / # pass 13 / # fail 0 / # skipped 0
$ node --test ".github/scripts/*.test.mjs"
# tests 543 / # pass 541 / # fail 0 / # skipped 2
$ node .github/scripts/changelog.mjs check
changelog: 23 fragment(s) in changelog.d/ are well formed (exit 0)
$ # red-first: only .github/scripts/label-hygiene.mjs reverted to base 5c1fb164's blob 114f37ac, new tests kept
$ node --test .github/scripts/label-hygiene.test.mjs
not ok 11 (422) / not ok 12 (404) / not ok 13 (500) — # tests 13 / # pass 10 / # fail 3
$ # restore the tip blob 5c5d2254, re-run
$ node --test .github/scripts/label-hygiene.test.mjs
# tests 13 / # pass 13 / # fail 0

Not run:

  • live close-event acceptance (the workflow runs base's script, so it can only be seen after merge) — runs right after merge
  • npm run verify / the core suite / ds-bot-patches check — this diff touches no core/, patches/ds-bot/ or client bundle

审查要点:

  • 本 tip 只是重放 base:7c27a23b 单亲 5c1fb164(= 当前 main),三个 blob 与 fe62ca8c/d9eab4b8 完全一致(5c5d2254/1f6fd724/bc7bf331),GET /compare/5c1fb164...branch 为 ahead 1 / behind 0,无 ghost file,改动集没有变。
  • 代码符合 label-hygiene: the first live run dies on its first item (422 on #1356), and one error aborts the whole sweep #1418 的第 2 个缺陷:每个 DELETE 单独 try/catch,404/Label does not exist 是唯一 skip,其余(含 422)进 failed 并继续处理后面的条目;FAILED: 汇总在读回之前打印;写失败或读回仍 stale 都返回 ok:false(exit 1),只有 404 skip 的干净盘面 exit 0。
  • describe 取 stderr 末行的状态行 + stdout 的 JSON body:核对 gh 源码(pkg/cmd/api/api.go 的 processResponse/parseErrorResponse,错误响应体同样写 stdout、gh: … 只写 stderr),夹具与真实行为一致,证据行不是编的。
  • 红先成立:只回退源文件时 not ok 11/12/13 三件全红(10 pass / 3 fail),恢复 tip blob 后 13/13,说明测试锁的是这次行为,不是实现细节。
  • 风险与作者声明一致:422 的根因(credential/route)不在本次范围;合并后 sweep 会跑完、但在这些标签上保持红并点名,属于预期的可读失败。keep-list、STALE_LABELS、dry run、trigger 均未改。

@Birfy
Birfy added this pull request to the merge queue Oct 27, 2026
Merged via the queue into main with commit 53d2c02 Oct 27, 2026
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@Birfy
Birfy deleted the dev3/1418-label-hygiene-resilient-apply branch October 27, 2026 14:44
@github-actions github-actions Bot removed the agent-pr Pull request opened by an agent label Oct 27, 2026
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label-hygiene: the first live run dies on its first item (422 on #1356), and one error aborts the whole sweep

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