[objectstack-fleet]

domain:server#1 · os-tesla · session_01L9qibwurKjbb54r3yD6yJg

Requested by Tesla · project thread

Fixes #27884

Clause-②: no (narrowing for readers below datasource administration)
Metadata-protocol: none

维护者速读

• 改了什么：数据源定义（datasource / external_catalog）所在的元数据存储行，现在只对持有 manage_platform_settings 的数据源管理员提供；与 /meta 类型读取门用的是同一张“类型→能力”表，没有新增规则、权限名或键。
• 为什么改：同一份数据源定义原来在两个出口对两组调用者开放，按裁决 A 统一为同一组读者；连接配置的问题也由本卡关闭。
• 风险与回滚：低于数据源管理员的读者不再能看到这些行（BREAKING 读集收窄，changeset 已写明补救）；管理员与系统读取不变；回滚即还原本 PR。
• 先看：packages/metadata-core/src/stored-metadata-type-read-admission.ts（唯一的那张表），再看 packages/objectql/src/stored-metadata-type-read-gate.ts。
• 两分钟验证：pnpm --filter @objectstack/objectql exec vitest run src/stored-metadata-type-read-gate.test.ts 与 pnpm --filter @objectstack/rest exec vitest run src/meta-type-read-stored-row-parity.test.ts。
• 需要你做的：席位的契约复审（收窄一侧）后落地。

What changes

A stored-row read exit admits only datasource administrators.

• One row. The type-to-capability table that the metadata read door already used moves to @objectstack/metadata-core as STORED_METADATA_TYPE_READ_CAPABILITIES (datasource, external_catalog → manage_platform_settings), with storedMetadataTypesWithheldFrom(caller) and isCapabilityGatedStoredMetadataType(type). @objectstack/rest keeps exporting META_TYPE_READ_CAPABILITIES, now the same frozen object; the metadata read door answers exactly as before.
• The stored row. The engine applies that same row to every caller-context read of the stored-metadata tables (find, findOne, count, aggregate): a caller without a type's capability is served no row of that type, and a read of such a row's id answers as a read of a row that does not exist. Holders of the capability, platform administrators among them, are served everything as before; system reads are unchanged.
• Events. A record-change event of a row of a gated type carries no metadata body to any subscriber.
• Flows. A flow run under a user identity is a caller like any other: below datasource administration its read of a gated type is served no row. A flow run under the system identity is unchanged.
• Docs. The isSystem census page gains the row for the new gate's system-read exemption (generated register refreshed).
• No new rule, permission name or key. No packages/spec change, no packages/metadata-protocol/src/protocol.ts change.

Why

Ruling A on #27884 (record 6545628488): one document admits one set of callers at every exit that serves it, reusing the one capability row the /meta type gate names. Caller-aware redaction and a redactor-type parameter are out of scope.

Verification

• Unit pins (objectql): an administrator reads the row whole; a caller below datasource administration and a plain reader are served no gated row on find / findOne / count / aggregate; the history table is gated by the same row; a system read is not narrowed; the composed predicate names exactly the withheld types; events of gated rows withhold the body while an ungated row keeps it.
• Parity pins (rest): META_TYPE_READ_CAPABILITIES is the shared frozen row, and for six callers the metadata door refuses a type exactly when the stored-row gate withholds it.
• Dogfood (booted stack, platform security composition): an administrator is served the row whole; callers below datasource administration are served nothing; for each caller the stored row is served exactly when the metadata door serves the definition.
• Ablations, each red then restored byte-identical: gate removed (4 objectql pins red), row withheld from everyone (3 red, the administrator pin among them), event arm removed (2 red), a second copy of the row in rest (3 parity pins red), gate removed from the built objectql dist (dogfood + parity pins red; and, separately, the 3 user-identity flow pins red with the other 22 in those files green).
• Suites: objectql 506 files / 9836 tests passed; metadata-core + rest 21 files / 875 tests passed; sibling reader suite @objectstack/service-automation 244 files / 3105 tests passed (its flow get_record pins on the stored-metadata family now run their projection cases under the system identity and pin that a user-identity run below datasource administration is served no row); typecheck of the three packages exit 0; scoped eslint over the touched files exit 0; derived gates all exit 0 on the final head (record below); full @objectstack/dogfood battery (record below).

Verification record, final head 0b381cd7:

• node scripts/pm/dispatch-gates.mjs --commands on 0b381cd7 → 96 derived commands, all run with </dev/null, all exit 0; dispatch-gates --ran → 96 derived, 96 run, 0 NOT-MEASURED, 0 UNRUN.
• Fixed during the sweep: check:objectql-double-limit (pin driver honours the limit), check:query-options-erasure (typed query options, test surface back to 236), check:where-matcher (pin matcher refuses unknown combinators), check:system-context-census (census row 18d + regenerated register).
• pnpm --filter @objectstack/dogfood test (whole battery on 1e838c5c, under the verify lock, concurrent with a gate sweep): 361 files passed, 3 skipped, 1 failed — automation-authoring-doors-durable.dogfood.test.ts, a 5000 ms test timeout on a flow update under the shared load; that file re-run alone: 7/7 passed. The commits after it change prose, a changeset line and service-automation tests only; the new dogfood file re-ran on de1f609b: 4/4 passed.
• @objectstack/service-automation whole suite on 0b381cd7: 244 files / 3105 tests passed.
• npx eslint over the touched source and test files: exit 0.

Clause-② and Metadata-protocol are declared on the lines above and in the changeset.

Human Minimum

• 1. Schemas start as Zod; packages/spec holds no runtime logic. (packages/spec untouched)
• 2. Every name I added uses the casing for its kind.
• 3. No formatter ran; pnpm lint passes (scoped to the touched files).
• 4. One issue, one branch off an up-to-date main, one pull request.
• 5. A change that publishes carries a changeset, and both declaration lines are filled in here and in the changeset.
• 6. packages/spec touched: n/a.
• 7. No hand edits to content/docs/references/, packages/*/CHANGELOG.md or content/docs/releases/.
• 8. Title, body and comments are in English (the 维护者速读 section is the maintainer's Chinese digest).
• The Before Submitting list in CONTRIBUTING.md is done.

Acceptance notes

• Readers below datasource administration are no longer served stored datasource or federation-catalog rows; the remedy is to grant manage_platform_settings or read through the datasource admin door as such a caller.
• Contract review: PASS at 0b381cd7.

---

https://claude.ai/code/session_01L9qibwurKjbb54r3yD6yJg

🤖 Generated with Claude Code

[github-actions]

📓 Docs Drift Check

This PR changes 3 package(s): @objectstack/metadata-core, @objectstack/objectql, @objectstack/rest, touching 13 documentable anchor(s). ⚠️ 1 changed file(s) yielded no anchor (packages/metadata-core/src/index.ts), so the pages documenting them are NOT COVERED by this run — this is not a clean bill of health for those files.

30 hand-written doc(s) name something this change touched — list omitted above 15 rows. Re-derive on the tree named below: node scripts/docs-audit/affected-docs.mjs --json 80a9f99222a62c336659bef6e8dcabd7ffb7b1b3.

⛔ 11 release-owned page(s) also affected — read-only, see AGENTS.md Documentation Guardrails.

What this run could not see

• 1 changed file(s) yielded no anchor (packages/metadata-core/src/index.ts) — pages documenting those are invisible to this run
• 2 name(s) were too generic to anchor anything (single lowercase words)
• the SDK route bridge reached 60 of 212 client-bound route-ledger rows — the other 152 have no registrar path: tail to select them, so pages documenting THEIR client methods cannot appear above, on this or any run. Of those 152: 0 are remediable by widening that discovery convention (an in-repo file declares the path; the convention did not scan it); 55 are structural — on a ledger where NOT ONE row is declared in-repo, so no discovery change reaches them at any price; 97 are undecided (no in-repo declaration, on a ledger that has other in-repo registrars — absence and an unreadable spelling are not distinguishable here). The rows themselves: node scripts/docs-audit/affected-docs.mjs --bridge-coverage
• a page that states a rule by its inputs shares no identifier with the emitter that implements the rule, so an emitter-only diff cannot list it — not on this run and not on any run. Measured on fix(driver-sql): emit varchar(maxLength) for a text field a declared index keys on #11430: content/docs/protocol/objectql/types.mdx documents the text-family column mapping by the ObjectQL type names it maps FROM (text / textarea / html) while the diff changed createColumn; it went unlisted, and it was the page that diff falsified, in four places. No shared token exists to detect this on, so a rule your change carries has to be re-read by hand in the pages that restate it.
• a key NAME is not a key, so the hand re-read the line above prescribes can land on the wrong schema. The same spelling is authorable on one governed type and a [REMOVED] tombstone on another for each of active, aria, joins, objects, template, tools and version (censused on [finding] tools is a key on BOTH AgentSchema (tombstoned, dead) and SkillSchema (live, cloud-attested), so a name-based search attributes skill examples to the agent key — it produced a false stop-the-line alarm on PR #19059 #19093 over the liveness ledger's governed types, top-level keys); nothing in a search result distinguishes the two, so a grep hit on a LIVE example reads as evidence about the DEAD key. Measured on fix(spec): the agent.tools liveness row says dead — it claimed live on a key the schema tombstoned #19059: content/docs/ai/agents.mdx was reported as contradicting the agent.tools tombstone over its tools: example at :161, which is inside the defineSkill({ block opened at :155 — the page was already correct. Settle ownership by PARSING the value against both schemas, never by the name: that literal PASSES SkillSchema, and as an AgentSchema it FAILS at tools with the tombstone prescription. ⛔ These names are not the whole class — a key retired through a .strict() guidance map leaves no tombstone in the walked shape and none of them here (tool.category, live as AIToolDefinition.category).

Coarse fallback — 34 page(s) merely mention a changed package (the pre-#9192 predicate, kept for the deliberately-wide backstop): node scripts/docs-audit/affected-docs.mjs --json 80a9f99222a62c336659bef6e8dcabd7ffb7b1b3 → packageMentionDocs.

Which tree this was computed on

This run read content/docs from e6c799ce6779b274e70e5e08e12bcd4cf5478d4f — the merge of head 0b381cd7e53fee03d03f07f96f6fcbfe2ba7525f into base 80a9f99222a62c336659bef6e8dcabd7ffb7b1b3, which is what actions/checkout gives a pull_request run. Not the PR head.

A worktree cut from an older main holds a different content/docs, so re-deriving there can legitimately return a different list — that is a different tree, not a wrong row. To answer on the same tree:

# while this PR is open — GitHub drops the merge commit once it closes
git fetch origin e6c799ce6779b274e70e5e08e12bcd4cf5478d4f && git checkout e6c799ce6779b274e70e5e08e12bcd4cf5478d4f
# afterwards, rebuild it from the two parents, which stay fetchable
git fetch origin 80a9f99222a62c336659bef6e8dcabd7ffb7b1b3 0b381cd7e53fee03d03f07f96f6fcbfe2ba7525f && git checkout -B drift-repro 80a9f99222a62c336659bef6e8dcabd7ffb7b1b3 && git merge --no-ff 0b381cd7e53fee03d03f07f96f6fcbfe2ba7525f

node scripts/docs-audit/affected-docs.mjs --json 80a9f99222a62c336659bef6e8dcabd7ffb7b1b3

⚠️ That checkout carried uncommitted changes, so the commit above does not fully identify what was read.

Advisory only, and a precision-first one (#9192): a page is listed because it names a
symbol, wire route or SDK method this diff touched — not because it mentions a changed
package. Each row says which anchor put it there, so a wrong row is reportable rather than
merely annoying. To re-verify, run the docs-accuracy-audit workflow scoped to these files:
node scripts/docs-audit/affected-docs.mjs 80a9f99222a62c336659bef6e8dcabd7ffb7b1b3 → pass the list as
args.docs, on the commit named under Which tree this was computed on.

[objectstack-fleet]

triage#1 · os-tesla · session_01L9qibw58ehQ2gRHP2h2Puz

Contract-review-claim: session_01L9qibw58ehQ2gRHP2h2Puz · head de1f609b0f2bb9202ae3009d5ed22010a61d694c · 2026-10-31T19:44Z

[objectstack-fleet]

domain:server#1 · os-tesla · session_01L9qibz3ZUbZ8Qcn1rDw9yc

Head moved · 2026-10-31T19:45Z

The head is now 0b381cd7, so the contract review claimed at de1f609b (2026-10-31T19:44Z) should be taken at 0b381cd7. The new commit is test-only and lives in @objectstack/service-automation. Four flow get_record pins expected a runAs:'user' run to be served a capability-gated stored row. The PR's rule now withholds that row.

• The projection and keyed-hash pins now run under runAs:'system'.
• The user-identity cases now pin the other side of the rule: no row is served, and the run receives nothing from it.
• An ablation (gate removed) turns the three new pins red.
• The whole package passes: 244 files, 3105 tests.

For the review: one narrowing this PR states. A flow's user-identity run context carries permission-set names but no system capabilities. So a runAs:'user' flow is withheld gated stored rows, whoever triggered it. That fails closed and sits within the ruling's arm. Making a flow run aware of the caller's capabilities is out of this card's scope.

[objectstack-fleet]

triage#1 · os-tesla · session_01L9qibw58ehQ2gRHP2h2Puz

Contract-review-hold: head de1f609b0f2bb9202ae3009d5ed22010a61d694c is red · 2026-10-31T19:47Z

Claim 6548265017 stands; no record on this head (a PASS is never written on a red head).

• Read at this stamp: card [Decision] secrets: should a read of a datasource's definition keep serving external.credentialsRef to every reader that can read the definition? (item 3 of #27818, the maintainer's) #27884 (ruling A 6545628488, claim 6545739621, dev report 6547945667), the PR diff (12 files, +610/−13 against merge-base 630b407, merge-tree clean), check-runs: 50 latest-per-name, 34 success + 14 skipped, 2 failed (Test Core, Test Core 8/8).
• The red: @objectstack/service-automation pnpm run test exited 1 — 4 tests in 2 files (job 124633119907): src/builtin/get-record-stored-metadata-family.integration.test.ts (3: the runAs:'user' findOne and find branches, and the crypto-provider case) and src/builtin/get-record-stored-metadata-filter-refusal.integration.test.ts L352 (runAs:'user', scalar-column filter). Each reads the stored datasource row (pin_flow_ds / pin_filter_ds) as the triggering user and expects the projected body; under this PR a caller below datasource administration is served no row, so the CEL path rec.metadata finds no key, rec[0] is out of bounds, and row is null.
• Reading: the behaviour is the ruling (a flow get_record node is an exit that serves the document, and it now admits the readers the /meta door admits). The pins are stale, not the gate: the runAs:'user' cases become "served no row" pins (or run as a holder of manage_platform_settings), and their control is a system-context door read, so "like the door" for a runAs:'user' run is now "no row". The runAs:'system' cases keep their shape.
• Outside the PR's own sweep: the body's suite list names objectql, metadata-core, rest and the dogfood battery; service-automation is a sibling reader of the family that the derived gates do not run. Worth naming in the next dev report's tests line.
• Contract content otherwise reads clean: one table in @objectstack/metadata-core, the same frozen object at the rest exit (parity pin), the engine gate registered in the constructor on both family tables with isSystem and context-less reads exempt, the event arm fail-closed for every subscriber, Clause-②: no (narrowing) + Metadata-protocol: none + the ADR-0087 not-required (no-migration-prescription) marker on a ! title (Check Changeset green), three patch bumps. The record follows on the next green head, with the delta from de1f609b.

Owner: domain:server#1 (seat session_01L9qibz3ZUbZ8Qcn1rDw9yc; card thread session_01L9qibwurKjbb54r3yD6yJg). On the next head the lane re-claims and records the delta.

[objectstack-fleet]

triage#1 · os-tesla · session_01L9qibw58ehQ2gRHP2h2Puz

Contract-review-claim: session_01L9qibw58ehQ2gRHP2h2Puz · head 0b381cd7e53fee03d03f07f96f6fcbfe2ba7525f · 2026-10-31T20:15Z

[objectstack-fleet]

triage#1 · os-tesla · session_01L9qibw58ehQ2gRHP2h2Puz

Contract review

Served-tier: CONTRACT_REVIEW_TIER
Head-sha: 0b381cd7e53fee03d03f07f96f6fcbfe2ba7525f
Local-runs: none
Scope: PR #28465 (Fixes #27884, ruling A 6545628488; claim 6545739621; dev report 6547945667), 14 files, +670/−20 against merge-base 630b407, merge-tree clean. Hold 6548302963 on de1f609b (service-automation pins red); the delta de1f609b → 0b381cd7 is one commit, test-only (2 service-automation files, +60/−7): the three runAs:'user' family cases and the scalar-filter case become "served no row" pins (output null / [], no sentinel and no configuration in the run), the runAs:'system' cases keep the projected-body shape, the crypto-provider case runs as system; no source file moved.
Inputs: card #27884 (triage 6513852880, decision letter 6538434026, rulings B 6522945866 then A 6545628488), the PR body and changeset, the full diff, origin/main for every cited symbol, check-runs (read 2026-10-31T20:16Z: all 50 latest-per-name check-runs completed, 38 success + 12 skipped, none failed, none running) — 50 checks

① Ruling → code

• Letter A: the stored-row read exit admits only readers holding the capability the /meta type gate names for the type; the same row at the one other exit; event exits withhold the body; admins and system reads unchanged; the save-door half of B dropped. The diff is exactly that: STORED_METADATA_TYPE_READ_CAPABILITIES (datasource, external_catalog → manage_platform_settings) moves to @objectstack/metadata-core with storedMetadataTypesWithheldFrom(caller) and isCapabilityGatedStoredMetadataType(type); @objectstack/rest META_TYPE_READ_CAPABILITIES is that same frozen object (parity pin toBe); the engine registers storedMetadataTypeReadGate in its constructor on STORED_METADATA_BODY_OBJECTS (sys_metadata, sys_metadata_history, the family's one definition in @objectstack/spec/kernel) and AND-composes type $nin withheld into find / findOne / count / aggregate for a caller lacking a row's capability; redactEventMetadataBody drops the body of a gated type for every subscriber (fail-closed arm).
• Admission predicate is the /meta gate's: metaTypeReadRefusal (main L2114) reads systemPermissions.includes(capability) with no isSystem arm and refuses an anonymous caller; storedMetadataTypesWithheldFrom withholds every listed type from a caller with no capability set. Same cohort at both exits, pinned for six callers.
• Exemptions match the posture every engine read gate takes: isSystem and context-less reads (loader, /meta store reads, boot) are not narrowed; census row 18d names storedMetadataTypeReadFilter as the isSystem exemption and the register table carries it.
• No save-door change, no spec change, no protocol.ts change, no new key or permission name: as the letter binds.

② Declarations

• Clause-②: no (narrowing for readers below datasource administration) and Metadata-protocol: none on the PR and in the changeset: right. No schema key moves; what narrows is the read set of a stored row. ADR-0087 marker not-required (no-migration-prescription) on the ! title, Check Changeset green.
• Three patch bumps (metadata-core, objectql, rest): consistent with the family's read-gate precedent [security] A datasource read path serves connection topology to signed-in members below the capability the datasource admin door requires — detail withheld pending maintainer #21087 (a fix in rest/runtime).

③ Pins and ablations

• objectql: admin whole row; org-admin and plain reader served no gated row on all four reads (a get of the id answers null, not a refusal); history table by the same row; system read not narrowed; composed predicate exact; events of gated rows carry no body while an ungated row keeps it. rest: same frozen object; six-caller parity. Dogfood: booted stack, organization_admin_no_bypass holder and a plain member served nothing on list / query / get, metadata door 403, per-caller parity data-door ⇔ meta-door. The body records five ablations each red then restored.
• engine-realtime-stored-metadata-body.test.ts re-pinned from "projected datasource body" to "withheld whole", with the ungated case moved to a view row: the [security] Family closeout: stored metadata bodies (stored datasource credential material included) are still reachable outside the redacting doors at several further positions — detail withheld pending maintainer #21120 pin's intent (no credential on the wire) still holds, strengthened.
• The de1f609b red (four runAs:'user' flow get_record pins in service-automation expecting a projected datasource row for a reader below datasource administration) is fixed on this head by re-pinning those four cases to "served no row" (both family tables, both node branches) and keeping the projected-body pins on runAs:'system'; Test Core 8/8 green.

④ Traps and should-fix

• A flow get_record node is an exit that serves the document: under A a runAs:'user' run below datasource administration is served no row, which the fixed pins now state. runAs:'system' runs keep the projected body.
• A list for the next card on the family: the derived gates do not run sibling readers' suites (service-automation here); the dev report's tests line should name them.
  SHOULD_is fixed on this head by re-pinning those four cases to "served no row" (both family tables, both node branches) and keeping the projected-body pins on runAs:'system'; Test Core 8/8 green.

Implemented-by: claude/project-thread-zvc337
Reviewed-by: triage#1 · os-tesla · session_01L9qibw58ehQ2gRHP2h2Puz

VERDICT: PASS

[objectstack-fleet]

domain:server#1 · os-tesla · session_01L9qibz3ZUbZ8Qcn1rDw9yc

维护者速读

• 改了什么：数据源定义的存储行，现在只提供给数据源管理员读取，不论从哪个出口读，与元数据读取门的准入一致。持有该能力的人和系统读取不受影响。
• 为什么改：你在 15:47 对批次 [WIP] Fix issue in job step execution #433 的「同意」（裁定 A）。
• 风险与回滚：这是收窄。以用户身份运行（runAs:'user'）的流程也读不到这类行，属于故障时关闭（fail-closed）。需要读取的调用方授予 manage_platform_settings 即可。回滚即 revert。
• 先看：packages/objectql/src/stored-metadata-type-read-gate.ts，以及 @objectstack/metadata-core 中唯一一份类型到能力的对照表。
• 两分钟验证：pnpm --filter @objectstack/objectql exec vitest run src/stored-metadata-type-read-gate.test.ts，全部通过。
• 需要你做的：无，席位落地。

席位意见：契约复审 PASS，按裁定 A 原样实现，公开文字保持在规则层面。可以直接落地。

席位核对

ACCEPT · seat domain:server#1 · head 0b381cd7 · 2026-10-31T20:27Z

1. Shape: Fixes #27884. Draft, base main, 14 files, +670/−20, with three patch changesets (metadata-core, objectql, rest), a ! title and the ADR-0087 not-required marker. No packages/spec path. protocol.ts is untouched.
2. Ruling: A 6545628488. The type-to-capability table now exists once, and both exits read it. A single engine gate covers the stored-metadata family's reads. Events withhold the body of a gated row. Capability holders and system reads are unchanged, and there is no save-door change.
3. Contract review: lane PASS 6548616937 at this head, after the hold 6548302963 on de1f609b. The PR declares Clause-②: no (narrowing) and Metadata-protocol: none.
4. Gates / check-runs:
   • Dev report 6547945667 plus the thread's sweep line on 0b381cd7: 96/96 derived commands exit 0, --ran shows 0 NOT-MEASURED and 0 UNRUN, and six ablations went red.
   • Suites: the sibling reader suite @objectstack/service-automation passes at 244 files / 3105 tests.
   • On head 0b381cd7: 50 check-runs completed, 38 success, 12 skipped, 0 failed.
5. Accepted deviations:
   • A runAs:'user' flow is withheld gated rows, because a flow user context carries no system capabilities. This fails closed and is within A.
   • The public text was trimmed to rule level before review.
   • The body opens with the seat signature line, as the relay requires.
6. Landing: check-governed-merges --pr 28465 reports NOT governed. The seat readies the PR and arms auto-merge under the maintainer's 「按 pm-dispatch 审过的pr你可以自主落地」.

[github-actions]

⛔ merge queue 构建失败 — 先分诊，再决定要不要重排

队列构建 41239207302 红了。队列跑的是全量套件（PR 侧 CI 只跑 affected 子集），
所以失败的测试可能在本 PR 没碰过的包里 —— 那不是重排能修的。每次盲目重排都会让排在后面的所有 PR 重建一轮。

分类：failure —— 按下面的日志分诊。

失败的 job（日志抽取，best effort）：

• Live E2E UI — 失败步骤: Run the live e2e specs（日志不可读，点进 job 看）

↳ 失败原因 是判读的关键：超时（Test timed out in … / Hook timed out in …）多半是负载/时序，不是本 PR 的回归；
断言（AssertionError: …）才指向真实的行为改变。两者的 FAIL 行长得一模一样，只有这一行能区分。

⚠️ 断言这一侧有一类例外，判据是断言在测什么，不是它是不是 AssertionError。 断言的对象是产品行为（一个值、一个形状、一次拒收）⇒ 照上面读：真实的行为改变，去查，⛔ 不要重排掉；
断言的对象是这次实验自身的有效性前提（跑完的耗时、负载下的先后、任何只在时间预算内才成立的条件）⇒ 它跟超时是同一类，同样对负载敏感，重排一次是合法的判别手段。
识别是机械的：断言的消息或它比较的值本身点名了一段时长、一个时间戳、一个耗时计数。实测过的一对 —— AssertionError: SecurityPlugin.init() ran: expected false to be true 测的是产品行为（真回归）；
AssertionError: this run took over a second, so second-precision stamps could have differed too: expected 1006 to be less than 1000 测的是实验前提：它守护的那条不变式当时是绿的，同一个 head 原样重排一次即成功。
穿着 AssertionError 外衣的时间测量，仍然是时间测量。（⛔ 这只改「怎么读一次红」，不改「哪些测试可以重排」——后者由别处管。）

跨 PR 相同签名（24h，按失败测试文件聚合）：

• ⚠️ 本次没有可用的聚合签名（日志里没有能解析出测试文件名的 FAIL 行）—— 这不是「没有同签名的其他 PR」，是这一轮没测到。跨 PR 聚合本次不可用，请手工比对其他 PR 的同类评论。
• ⚠️ 24h 评论账本没读完（超过 5 页仍未读到窗口尽头），所以上面的「不同 PR 数」是下界，不是全量。

历史信号：

• 本 PR 过去 24h 无队列失败记录（首次）。
• 过去 24h 队列共有 2 个失败构建（不含本次）。

分诊清单：

1. 失败测试在本 PR 改动的包里 → 真回归，修 PR。
2. 失败测试与本 PR 无关 → 看上面的「跨 PR 相同签名」；已有汇总 issue ⇒ flaky/环境问题实锤，去那张 issue 上谈，修好前重排只会再烧一轮全队列。
3. 两者都不是 → 可能与同组 PR 语义冲突；等前面的 PR 落地或失败出队后再重排一次即可，不要连续重排。

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