[Decision] CI 的 Test (shard 1/8) 又逼近 20 分钟上限，并已超时取消一次：分片怎么改才不再复发 #12208

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1. objectstack-fleet

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2. objectstack-fleet commented on Oct 12, 2026

   

   objectstack-fleetbot

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   Triage: decision-box entry check, with one completion. The 「维护者速读」 block is added, and Q2 is folded so the question is one letter

   Triage seat (seat post objectstack-ai/objectstack#6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-12T08:08Z. ⛔ Not a claim, ⛔ no letter chosen.

   • Entry check: the options with workload, the four facets, the premises and the prior-rulings line are present. The 速读 block is missing, and the card asks two questions (Q1, Q2).
   • The fold: Q2 "yes" adds actions: write to the fleet token, a permission widening that defaults to no, and the card recommends "no". So Q2 rides as "no" under A and B, and Q2 "yes" is letter C.
   • Lane after the ruling: domain:devx @ objectui (its seat is vacant, objectui#5748). The dispatch follows the ruling.

   维护者速读

   objectui 的 CI 第 1 个测试分片平时就跑到 17 分钟以上，已经有一个测试全绿的 PR 因为跑满 20 分钟被取消，只能等人手动重跑。测试量 20 天涨了约 54%，不改会越来越频繁。三条路：

   • A：分片从 8 个加到 12 个（1 个 PR，立刻缓解，约 6 周后会再撞上）。
   • B：先加到 12 个，再按实测耗时均衡分片（2 个 PR 加定期刷新耗时数据），以后测试再多也只是自动多分几片。
   • C：不动分片，只给席位一个「重跑超时分片」的权限（车队 token 要多一项写权限）。

   席位推荐 B，其次 A。

   选 A、B 还是 C？

   os-decision-facets

   • ① 项目长远合理性：B 按实测耗时分片，宽度随总量自动推出；A 是三周前做过的同一补丁；C 不解决根因。
   • ② 实际业务拉动：今天就撞上（objectui#12196）；9 月同类问题多次踢队列。
   • ③ 防 AI 犯错：B 的耗时数据过期只会不够均衡，仍可见；C 可能把真变慢的分片重跑成绿。
   • ④ 创业阶段不扩散：A 零新零件；B 新增 sequencer 和数据文件但不加门禁；C 新增权限面，默认从紧。

   Prior rulings read: as listed on this card (objectui#9499 C, and ci.yml's "⛔ the ceiling is NOT raised" notes).
3. objectstack-fleet commented on Oct 12, 2026

   

   objectstack-fleetbot

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   Ruling: batch #328 item 1 · letter B (staged) · Q2 否 · maintainer 「同意」 2026-10-12T09:49Z

   Director seat, summon #37, session_01LqNgdPZB2Jnr5HpGbaqLeB (GitHub os-zhuang; written as objectstack-fleet[bot] via the relay). The maintainer asked for this card on the direct channel (「这个你也帮我分析，一起接管」); this seat measured the shards itself, presented the card's three letters with its own reading and the recommendation "Q1 = B staged, Q2 = 否, PR-1 folded into objectui#12214's in-flight PR, PR-2 after it lands", and the maintainer answered 「同意」.

   Premises re-read in this act (300 CI runs, 1,728 Test (shard n/8) jobs over 7 days, the jobs API): shard wall median 14.4 min, p90 17.0, p95 17.4, max 20.3 (the one cancellation, run 38215707699, shard 1); 13 % of headroom at p95; the card's growth reading (+54 % in 20 days) is not re-measured here. One premise of the card changed since it was written: under objectui#12214 (claimed, dev in flight; the doctrine objectstack#22998) pull_request and merge_group runs carry only the affected packages' tests, so "the merge queue always runs the whole suite" no longer holds after it lands; the whole-suite run moves to main's push and hourly schedule, where this card's cap problem would otherwise reappear as a main-red. B therefore serves the full-battery runs, not every PR.

   The ruling

   Q1 → B, staged.

   • PR-1 (now, folded into objectui#12214's PR): the test matrix goes from 8 to 12 shards with its comment updated; every pin of the shard count (scripts/check-test-shard-results.mjs --shards … in the Test aggregator, and any other) moves with it; the coverage matrix stays 4. This is a mechanical change to the same file and job the 12214 dev is editing, so it rides that PR as one commit (Refs objectui#12208 (PR-1)), on the fold rule's five gates: same defect shape (test wall against a fixed cap), same file and job, both ruled, independently checkable (the shard count), nothing else folded.
   • PR-2 (this card, dispatched after objectui#12214 lands; shares ci.yml): shards balanced by measured per-file duration (a vitest sequencer shard() that bin-packs from a per-file timing file; if vitest 4's sequencer cannot take shard(), the fallback the card names: width only, plus the headroom reading), the width derived from the total measured duration at a target of about 10 minutes per shard, the timing file refreshed from main's full-suite runs on a schedule. The Test aggregator prints the longest shard's headroom against the cap as a report-only reading (⛔ not a gate; the doctrine's timing-gate rule). Acceptance as the card states: ten consecutive full-suite runs with the longest shard under 60 % of the cap.
   • Not taken: raising timeout-minutes (ruled out on the card and in ci.yml's own comments), skipping or quarantining a test, widening the relevance gate.

   Q2 → 否. No fleet-token actions: write for re-running timed-out shards: a permission widening, and a re-run can mask a shard that really got slower. A timed-out shard stays a human re-run until PR-1 and objectui#12214 remove the cause.

   os-decision-facets

   • ① 长远合理性：分片宽度与装箱由实测耗时决定，与 objectstack 同形；A 是第三次同样的补丁。
   • ② 实际业务拉动：p95 余量 13 %，增速每天约 16 秒；12214 落地后该类不再踢队列，但会在 main 全量跑复现，B 仍要做。
   • ③ 防 AI 犯错：耗时数据过期只会不均衡，可见；余量读数只报告；不给自动重跑。
   • ④ 不扩散：PR-1 零新零件并入在飞 PR；PR-2 一个 sequencer 一份数据，不加门禁、不加权限。
     Prior rulings read: objectui#9499 C (5682566291), ci.yml's "⛔ the ceiling is NOT raised" notes, objectstack#22998 (two-speed CI; timing gates report-only; test budgets), objectui#12214 (claim 6121064652), objectstack#22949 C2; thread: 6120293503 (triage's fold of Q2 into the letters).

   After this ruling

   • State: needs-user-decision → pm:blocked, Blocked-by: objectstack-ai/objectui#12214 (PR-2 waits for that PR; PR-1 rides it). Lane domain:devx @ objectui; this seat dispatches PR-2 on the maintainer's standing order 「三仓的 ci 优化卡你负责派发」 when the block clears.
   • A pointer goes to objectui#12214; the fold instruction goes to its dev.
   • ⛔ No code by this seat.
4. objectstack-fleet

   added

   area:devpathThe road — create, dev, verify, publish/install, connect an agent, iterateThe road — create, dev, verify, publish/install, connect an agent, iterate

   domain:devxobjectui devx stream: fix lands on .github/, scripts/ or release pipeline — devx lane cross-repoobjectui devx stream: fix lands on .github/, scripts/ or release pipeline — devx lane cross-repo

   pm:blocked

   priority:p1

   tooling

   and removed

   needs-user-decision

   on Oct 12, 2026
5. objectstack-fleet commented on Oct 12, 2026

   

   objectstack-fleetbot

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   Triage seat (seat post objectstack-ai/objectstack#6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-12T13:10Z. ⛔ Not a claim, ⛔ not a dispatch. Unlock: pm:blocked → pm:queue.

   • Blocked-by: objectstack-ai/objectui#12214 is closed (completed), and PR-1 rode it as the ruling 6121816480 set out.
   • What remains is PR-2: shards balanced by measured per-file duration. The ruling names its dispatcher, the director seat under the maintainer's standing order 「三仓的 ci 优化卡你负责派发」, so other seats leave it to that seat.
6. objectstack-fleet

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7. objectstack-fleet

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   os-zhuang

   on Oct 12, 2026
8. objectstack-fleet

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   os-zhuang

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10. objectstack-fleet

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11. objectstack-fleet

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    os-zhuang

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12. objectstack-fleet commented on Oct 12, 2026

    

    objectstack-fleetbot

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    Claim: PM loop round 1 · the director seat dispatching on objectui#12208's ruling (6121816480: "this seat dispatches PR-2 when the block clears") and the maintainer's standing order 「三仓的 ci 优化卡你负责派发」 (this seat's session, 2026-10-12T14:18Z)
    Session: session_01LqNgdPZB2Jnr5HpGbaqLeB
    Account: os-zhuang
    Branch: claude/issue-12208-duration-balanced-shards
    Worktree: objectui-issue-12208
    Domain: domain:devx
    Seat: domain:devx#9
    File surface: .github/workflows/ci.yml (the test and test-coverage jobs and the Test / Test (coverage) aggregators only: matrix widths, the sequencer wiring, the headroom reading), vitest.config.mts (the sequencer hook), a new scripts/test-shard-sequencer.* and its test, a new per-file timing file under scripts/ and the script that refreshes it from main's full-suite runs (plus its schedule wiring in ci.yml or a sibling workflow), scripts/check-test-shard-results.mjs and every pin of the shard counts; ⛔ not the type-check job (objectui#12222, in flight), ⛔ not spec-main-shape-gate.yml (objectui#12252), ⛔ no timeout-minutes raise, ⛔ no skipped or quarantined test, ⛔ no change to coverage.thresholds (stop on breach; explain in the report)
    Container & model: L, mode:subagent, model: opus (the default judgment tier: a sequencer and a width rule are design work). Tier H posture: .github/workflows/** (the round's posture; objectui#12255 is queued for the table row): the PR stays a draft until a GOVERNED_APPROVERS member approves it.
    Clause-②: no
    Responsibility: Test (coverage) on main's full-battery runs (objectui#12256, the main-red anchor folded here, fold note 6126024274: a coverage shard at its 40-minute ceiling on 7 of 25 push runs) | the shard walls for both matrices | the domain:devx @ objectui lane's PRs, which do not arm the queue while the red stands
    Thread-read: 6121816480
    Ruling-ref: objectui#12208 ruling 6121816480 (Q1 → B staged, the maintainer's word verbatim 「同意」; PR-1 landed in PR #12232); objectui#12256 triage 6125671110 (the same remedy for the coverage lane); objectstack#22998 (timing readings report-only; test budgets)
    Serial constraints cleared: PR #12232 (objectui#12214, PR-1) is MERGED (21fdeb34); objectui#12222 (in flight) edits the type-check job of ci.yml and turbo.json, disjoint hunks from this claim's two jobs, and whichever lands second merges origin/main first; objectui#12252 (claimed, not started) edits spec-main-shape-gate.yml only. Merge origin/main before opening the PR.
13. objectstack-fleet commented on Oct 12, 2026

    

    objectstack-fleetbot

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    os-dev-report
    {
    "issue": 12208,
    "status": "done",
    "branch": "claude/issue-12208-duration-balanced-shards",
    "pr": "#12263",
    "session": "session_01LqNgdPZB2Jnr5HpGbaqLeB",
    "premise_still_valid": true,
    "summary": "Draft PR #12263 (head 0e1a41c, mergeable clean, assignee os-zhuang) carries both halves. (1) First commit 4b3daf9, which opened the PR: the coverage matrix goes from 4 to 8. Every spelling of the width moves with it. The job name, the step name and --shard=N/8 change in test-coverage. coverage-report now reads one job variable, COVERAGE_SHARDS '8', for both the blob glob and the count it refuses to go below. Dependabot gate names, the census regex, the doc rows and the comments move too, and a new pin, coverage-shard-width.test.ts, holds every spelling to the matrix. timeout-minutes 40, the tests and coverage.thresholds are unchanged. (2) PR-2 proper (5192aa3, 9b1bea3, 0e1a41c): a vitest sequencer (scripts/test-shard-sequencer.mjs, root sequence.sequencer) whose shard() bin-packs files longest-first from a committed per-file dataset (scripts/test-shard-timings.json, keyed by a path hash). A per-file timing reporter runs on the full-battery test legs (scripts/test-file-timings.mjs; the push and schedule legs upload test-file-timings-N). A weekly refresh workflow (test-shard-timings-refresh.yml) regenerates the dataset from main's runs and opens a PR. Both aggregators print a report-only headroom reading (scripts/shard-headroom.mjs, continue-on-error, exit 0 whatever it reads). Main-red objectui#12256 stops at the first full-battery run after landing if H1 holds; that is NOT MEASURED until then.",
    "widths": {
    "test-coverage": "4 to 8, derived. On the full-battery push/schedule runs since PR-1 (21fdeb3), the 6 finished runs summed their 4 coverage job walls to 7458-9252 s, and their longest shard ran 2325-2364 s against the 2400 s cap. ceil(max total / 1200 s target) = ceil(7.7) = 8. 5 of those 11 runs were cancelled at the coverage cap.",
    "test": "Kept at 12, the ruled number, but the derivation answers 13. Across the 11 main runs since PR-1, the total of the 12 job walls was 6759-8052 s (median about 7311). At the 600 s target that is 13 by the median and 14 by the max. The PR's own headroom reading printed '13 shard(s) (the matrix has 12)' on both runs where it ran. See open_questions.",
    "measured_ratio": "Coverage vs test, from the same 6 finished main runs: the sum of 'Run tests' step walls is 1.09-1.41x, median 1.26 (job walls: median 1.20). The two lanes ran at different widths (4 vs 12), so per-shard fixed costs differ. The ratio enters only the width derivation. Both matrices bin-pack with the same per-file weights, and a uniform multiplier does not move a bin-packed partition."
    },
    "sequencer_decision_H2": "H2 holds on vitest 4.1.10. BaseSequencer has shard(files) and sort(files). The root config's sequence.sequencer is constructed once per run, and its shard() is called with every specification whenever --shard is set (pool executeTests, before sort). Implemented as an adapter extending BaseSequencer: shard() is replaced, sort() is inherited. The pure partition lives in scripts/test-shard-partition.mjs: greedy longest-first, deterministic tie-breaks (path, project, lowest leg), an unknown file weighed at the dataset median, and a 1 ms floor so every leg gets a file. A dataset holding no file falls back to super.shard(), byte for byte. Checked on vitest's REAL spec list (4979 specifications, node API): every leg's bin, at 12 and at 8, places each specification exactly once (missing 0, twice 0). H3 holds in part. The built-in json reporter's per-file span covers only the tests, so the writer reads TestModule.diagnostic() instead (environment + prepare + setup + collect + run), the cloud#2806 shape. One dataset serves both matrices. Refresh choice: a committed file plus a weekly PR, not an artifact the legs fetch. Every leg computes the whole plan and keeps its bin, so one run's legs must read the same weights; legs fetching 'the newest artifact' could straddle a refresh and run files twice or never, every leg green. A committed file also reproduces a CI leg on a laptop. The dataset sits in the root config's import closure, so the PR that moves it runs the full suite (checked with select-affected-tests: a dataset-only change is mode=full). Cost: the refresh PR is opened with GITHUB_TOKEN, so it has no CI until someone pushes to it once (objectui#5397 refused a PAT). The workflow header and the doc say so.",
    "test_walls": {
    "without_sequencer": "Hash split, empty dataset, PR runs (pull_request, mode=full, 12 legs). Run 38268236293 (a7f6018): 413-696 s, longest shard 11. Run 38269820609 (5874484): 414-773 s, longest shard 1. Main baseline, 11 push/schedule runs since PR-1: longest leg 697-796 s, 9 of 11 above 720 s.",
    "with_sequencer": "Run 38271639400 (9b1bea3, path-keyed one-run dataset): 412-753 s, and shard 2 red (the sweep collision below). Run 38274458184 (0e1a41c, hashed two-run dataset): 425-731 s, all 12 green. The aggregator printed 'longest Test (shard 3/12): 12m11s = 61% of the 20-minute cap, 7m49s of headroom; total 122m49s over 12 shard(s); at the 10-minute target per shard that is 13 shard(s)'.",
    "reading": "Two runs each way cannot show a balancing gain. On main, the same leg index varies by about 100 s (stdev per leg over 11 runs) on a near-identical file set. 84 of 132 legs ran 602-796 s and 48 ran 377-597 s, which looks like runner speed rather than file assignment. That variation is as large as the imbalance the hash split produced. The ten-run acceptance after landing is the measurement. Both balanced runs had a leg over 720 s, so at 12 legs that acceptance is unlikely to pass (open_questions). Per-file sums predicted their own run's leg walls tightly: leg wall / sum of file walls = 0.347-0.363 across the 12 legs of run 38269820609. One run's numbers carry each leg's runner speed into every file it measured, so the bootstrap uses the median of two runs and the refresh uses the median of up to six."
    },
    "tests": "All at HEAD 0e1a41c (git rev-parse --short HEAD), through os-verify-lock. (1) pnpm exec vitest run scripts/tests/ packages/types/src/tests/ai-insights-retired-8800.test.ts: 'Test Files 188 passed | 2 skipped (190)', 'Tests 5622 passed | 2 skipped (5624)', VERDICT command-exit 0. (2) pnpm type-check:scripts and pnpm type-check:vitest-config: exit 0. tsc --listFiles counts the 4 new test files in the scripts program. (3) eslint --format json over the 12 changed scripts and tests: 12 files, 0 errors. vitest.config.mts is outside eslint's configured population, so it is not linted. (4) Gates, node scripts/X.mjs, each exit 0: check-control-bytes, check-action-ref-convention, check-pre-install-import-graph (39 pre-install steps, every leaf a builtin, the refresh workflow's node-only scripts included), check-shell-escape-residue, check-doc-links, check-doc-fence-languages, check-new-cross-file-line-citations (0 new), check-changeset-presence (no changeset owed), check-test-path-roots. check-governed-queue-guard --test on ci.yml, the refresh workflow and vitest.config.mts: NOT GOVERNED. (5) YAML parses for both workflows. actionlint is not installed: NOT MEASURED. (6) Ablations through objectstack's ablation-replace.mjs, each restore verified (blob == HEAD, git diff HEAD empty). COVERAGE_SHARDS '8' set to '4': width pin red, 1 failed. Coverage matrix set to [1,2,3,4]: red, 3 of 5. sequence: line removed from vitest.config.mts: wiring pin red. Headroom --cap-minutes 20 set to 30: headroom pin red. Longest-first replaced by dealing in sort order: 1 red, the heavy-file placement pin; the two balance-bound tests stay green, because dealing in descending weight also satisfies them, so they pin balance, not longest-first. (7) Local 8-way coverage merge, ten script test files: 8 blobs (blob-k-8.json, k = 1-8), --merge-reports reads all 8 ('Test Files 10 passed (10)'); over the merged map a lines threshold of 70 exits 0, and 71 exits 1 with 'ERROR: Coverage for lines (70.57%) does not meet global threshold (71%)'. (8) CI on the PR head 0e1a41c: CI success (Type Check, Build & E2E, Build Docs, 12 test shards, dist pins, Test), plus Lint, Repo Gates, Changeset Presence, Line Citation Gate, Governed Surface Guard, Live E2E and Test Shard Timings Refresh, all success. The refresh's PR dry run printed its NOT MEASURED warning and stayed green, as designed before main has artifacts. Spec Main Shape Gate (advisory) was in_progress when read. NOT MEASURED: coverage walls at 8 shards (push/schedule only, read on the first full-battery run after landing); the refresh's real PR-opening leg (schedule or dispatch only); the 10-run acceptance.",
    "gates": "scripts/tests suite + objectui#8800 pin, type-check:scripts, type-check:vitest-config, eslint over the changed scripts, check-control-bytes, check-action-ref-convention, check-pre-install-import-graph (with --self-test), check-shell-escape-residue, check-doc-links, check-doc-fence-languages, check-new-cross-file-line-citations, check-changeset-presence, check-test-path-roots, check-governed-queue-guard --test. All are green at 0e1a41c. check-test-shard-results reads only Test (shard N/M), never coverage, so its --shards stays 12. pnpm lint over the repo was not run locally (CI's Lint is green).",
    "files_changed": [
    ".github/workflows/ci.yml (test-coverage 4 to 8; coverage-report COVERAGE_SHARDS, permissions, a sparse checkout and the headroom step; test: timing reporter, upload step, the sequencer note; test-aggregate: headroom step)",
    ".github/workflows/test-shard-timings-refresh.yml (new)",
    "vitest.config.mts (sequence.sequencer)",
    "turbo.json (one test input: $TURBO_ROOT$/scripts/test-shard-*)",
    "scripts/test-shard-sequencer.mjs, scripts/test-shard-partition.mjs, scripts/test-file-timings.mjs, scripts/shard-headroom.mjs, scripts/test-shard-timings.json (new)",
    "scripts/dependabot-merge-gate.mjs (8 coverage shard names; the refresh check as OPTIONAL)",
    "scripts/coverage-red-cause-census.mjs (any-width regex; shardOf note)",
    "scripts/tests/coverage-shard-width.test.ts, test-shard-partition.test.ts, test-file-timings.test.ts, shard-headroom.test.ts (new); coverage-red-cause-census.test.ts, coverage-shard-reporter-readability.test.ts (edited)",
    "content/docs/guide/ci-cd-pipeline.md (coverage rows, test/test-aggregate rows, a new workflow section and inventory row)"
    ],
    "deviations": [
    "File surface additions beyond the claim's list: turbo.json and content/docs/guide/ci-cd-pipeline.md (each required by a pin), plus the partition, timings and headroom scripts. turbo.json gains one test input, because turbo-test-inputs.test.ts requires the root config's new relative imports in turbo's test inputs. That line is disjoint from objectui#12222's hunks, and it merged cleanly after PR #12251 landed. The doc changes are required by ci-cd-pipeline-doc.test.ts, which wants every command a job runs and every workflow file named.",
    "Two TEMPORARY commits (5192aa3's notice step, and 5874484 splitting it into three steps) carried the first per-file measurement out as notice annotations. This container cannot download an artifact: the blob host answered 403 on artifact 11751093289. The runner kept 10 notices per step, so run 38268236293 was partial. 9b1bea3 removes the steps, and a squash leaves nothing of them. This cost two extra full PR runs, and a third run re-measured after the key change.",
    "The dataset is keyed by sha1(path)[0:16], not by the path. The first path-keyed full run (38271639400) went red because objectui#8800's retired-spelling pin found its own file name in the dataset. Hashing closes the whole class, and a new pin asserts that no tracked test file name occurs in the dataset text. My own source comment named the spelling and the pin caught it locally; it was reworded.",
    "Merged origin/main once (a7f6018), after objectui#12222's PR #12251 landed. The CI doc's job table conflicted on adjacent rows: main's type-check row was taken, and this branch's test row. Each side had changed only its own row (checked three ways against the base).",
    "Commit trailers use the model-free pair per objectui AGENTS.md (its rule takes precedence over the harness reminder). The PR body carries line 3 'Clause-②: no', copied from the claim; nothing in objectui reads it.",
    "The PR body was written once, at open, on commit 1. Its 'commits that follow' section says 'planned'. Corrections are below in pr_body_corrections for the seat; the dev does not PATCH the body.",
    "Labels: zero writes. objectui labels are path-driven and the dispatch named none."
    ],
    "pr_body_corrections": "Replace the planned-commits section with what landed. 5192aa3: sequencer, reporter, refresh, headroom. 9b1bea3: first dataset, temporary steps removed. 0e1a41c: hashed keys, two-run dataset. Add the test_walls readings and the bootstrap channel. Add the sweep-collision fix. In 维护者速读, add the finding that per-leg runner variation is about as large as the imbalance, and the test-width question (12 kept; the derivation says 13).",
    "not_measured": [
    "Coverage shard walls at 8: the lane runs on push/schedule only. Read on the first full-battery run after landing (H1).",
    "Ten consecutive full-suite runs under target plus margin: after landing, read by the seat.",
    "The refresh workflow's write leg (push the bot branch, gh pr create): it runs on schedule or dispatch only. Its PR leg ran green with NOT MEASURED, because no main run carries test-file-timings artifacts before landing.",
    "actionlint: not installed in this container."
    ],
    "mcp_calls": "0",
    "api_writes": "2 — both through the fleet-write relay (POST /repos/objectstack-ai/objectstack/dispatches). (1) pr_create on objectstack-ai/objectui: draft, assignees os-zhuang, giving #12263; relay run 38264541514; read-back 5784 bytes identical. (2) This report comment on objectui#12208 plus a one-line pointer comment on objectui#12256, as one stroke of two actions. git push is not REST: the empty-branch probe, 4b3daf9, 5192aa3, a7f6018, 5874484, 9b1bea3, 0e1a41c.",
    "open_questions": [
    {
    "question": "The test matrix width: keep the ruled 12, or move to the width the ruling's own rule derives (13 at the 10-minute target)?",
    "options": [
    "A keep 12. Cost: none now. The derivation answers 13. Both balanced PR runs had a leg over the card's 720 s acceptance bound (753 s, 731 s), as did 9 of 11 unbalanced main runs. The ten-run acceptance likely fails, and growth widens the gap.",
    "B 13. One mechanical commit on this PR or a follow-up: ci.yml name and both --shard flags, test-aggregate --shards, the headroom and refresh --shards, the 13 Dependabot NOT_A_GATE names, doc and comments. One more runner per run (about 40 s setup each). Expected longest leg about 12/13 of today's.",
    "C 14. The derivation at the max total (8052 s). Overshoots the median reading."
    ],
    "recommendation": "B. Every reading of the ruled rule (width from the measured total at about 10 minutes per leg) answers 13: the main median, and the PR's own headroom line, twice. A cannot pass the card's acceptance as measured. Every full-battery run prints the implied width, so moving later to 14 is a data-driven edit and not a new card. Four axes, briefly. Long-term: the width follows the data, which is the ruling's B. Business pull: today's legs sit at 61-66% of the cap. AI error: report-only readings, no gate. Startup scope: one runner, no new part."
    }
    ],
    "out_of_scope_findings": [
    "carrier: the next AGENTS.md edit (governed surface) · noted, not filed. AGENTS.md section 9's test recipe still gives '--shard=1/4' as its example (H5); the coverage lane is 8 and the test lane is 12, and the sequencer now decides membership.",
    "carrier: whoever next edits .github/workflows/changeset-release.yml · noted, not filed. Two comments there still say the push lane ran 'coverage across four shards'.",
    "carrier: whoever next edits scripts/tests/check-unused-dependencies.test.ts · noted, not filed. A comment there says 'on the merged 4-shard report'."
    ]
    }

    ---

    Generated by Claude Code
14. objectstack-fleet commented on Oct 12, 2026

    

    objectstack-fleetbot

    on Oct 12, 2026

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    Review: ACCEPT · PR #12263 (draft, head 0e1a41c9) · director seat dispatching on the card's ruling (6121816480, B staged) and the objectui#12256 fold (6126024274), 2026-10-12T16:27Z

    Checked on GitHub and on the head's tree, not on the report's say-so:

    • PR shape: exists, draft, base main (merge-base e5c8ea7f; origin/main merged once at a7f6018a after PR ci(type-check): the turbo cache replays unchanged packages, and pull-request and queue runs type-check only what the change affects (objectui#12222) #12251 landed), body lines 1–2 Fixes #12208 / Fixes #12256 (the only closing keywords), Clause-②: no, assignee os-zhuang; 18 files, +7,082/−79 (5,004 of them the committed dataset), six commits (4b3daf92 the width, 5192aa3a the sequencer + reporter + refresh + headroom, a7f6018a the merge, 58744849 and 9b1bea38 the temporary bootstrap steps in and out, 0e1a41c9 the hashed keys and the two-run dataset).
    • The main-red fix (commit 1), read in ci.yml: test-coverage matrix [1..8], job name Test (coverage shard N/8), --shard=N/8 (line 1641), timeout-minutes: 40 unchanged (1525); coverage-report says the width once as COVERAGE_SHARDS: '8' and reads it for the blob glob and the count it refuses below (1734, 1792–1797); no literal 4 is left near the coverage lane; coverage.thresholds untouched (the vitest.config.mts diff is the sequencer import and the sequence: line only); the Dependabot gate names and the census regex moved; the width pin coverage-shard-width.test.ts is new. The local 8-way merge in the body shows the thresholds read the merged map (lines 70 passes, 71 fails).
    • PR-2 proper, read in the tree: scripts/test-shard-sequencer.mjs extends vitest's BaseSequencer, replaces shard() only and falls back to super.shard() on an empty dataset; test-shard-partition.mjs bin-packs longest-first with the median for an unknown file and a 1 ms floor; test-file-timings.mjs is the reporter on the full-battery legs (push/schedule upload test-file-timings-N); scripts/test-shard-timings.json is keyed by a path hash (0 test-file names in its text, checked); turbo.json gains one test input; both aggregators' headroom steps are if: always() + continue-on-error: true (1429–1434, 1864–1869; report-only, as ruled); the refresh workflow runs 47 6 * * 1, workflow_dispatch and a pull_request dry run, and writes with GITHUB_TOKEN (no PAT; objectui#5397 kept, so the bot's PR needs one push before CI runs on it, said in the header and the doc).
    • H4 held: the type-check job (lines 146–929) has no hunk; the two on: hunks are comments. H2 held on vitest 4.1.10 (shard() called with every specification whenever --shard is set; every specification placed exactly once at 12 and at 8 over the real 4,979-file list). H3 held in part: the built-in json reporter's per-file span covers the tests only, so the reporter reads TestModule.diagnostic() (the cloud#2806 shape). The refresh choice (a committed file + a weekly PR, not an artifact the legs fetch) is accepted for the reason given: every leg must read the same weights, and legs fetching "the newest artifact" could straddle a refresh.
    • Gates on the head 0e1a41c9, read at this act: all green: Test (12 shards, dist pins, the aggregator), Lint, Repo Gates, Type Check, Build & E2E, Build Docs, Changeset Declaration, Changeset Claim Re-read, Changeset Fixed Group Check, Governed Surface Queue Guard, Line Citation Gate, Live E2E, Regenerate the per-file test timings (the refresh lane's dry run, NOT MEASURED by design before main has artifacts), Spec Main Shape Gate (advisory); Test (coverage) skipped by design on a PR run. The dev's local union: 188 test files / 5,622 tests green under the verify lock; type-check:scripts and type-check:vitest-config exit 0; eslint over the 12 changed scripts 0 errors; nine check-* gates exit 0; check-governed-queue-guard --test NOT GOVERNED on the three paths; five ablations red in the predicted direction (restores proven).
    • Measured, and what is not: test legs with the sequencer 425–731 s (run 38274458184, all green) and 412–753 s (run 38271639400, one leg red on the sweep collision, fixed by the hashed keys); without it 413–696 s and 414–773 s; main's baseline since PR-1: longest leg 697–796 s, 9 of 11 runs above 720 s. Two runs each way cannot show the balancing gain: the per-leg runner variation on main (about 100 s stdev per leg index) is as large as the hash split's imbalance; the per-file sums predict a leg's own wall tightly (wall ÷ sum of file walls 0.347–0.363 across 12 legs). NOT MEASURED until landing: the coverage walls at 8 (the lane runs on push/schedule only; the main-red stops at the first full-battery run if H1 holds), the ten-run acceptance, the refresh's write leg, actionlint.
    • Tier and review face: NOT GOVERNED by the queue guard; the round's Tier H posture for .github/workflows/** and the size (7,082 lines > 3000) both say the maintainer approves and the seat lands. Contract review: none of the three faces touched → the seat's own reading, no second agent.
    • Deviations accepted: turbo.json and content/docs/guide/ci-cd-pipeline.md (each required by a pin); the two temporary bootstrap commits, removed in 9b1bea38 (a squash leaves nothing; two extra PR runs were the cost of measuring from a container that cannot download artifacts); the hashed dataset keys after objectui#8800's retired-spelling pin found a file name in the first dataset (a new pin asserts no tracked test-file name occurs in the dataset text); the one origin/main merge with a two-row doc conflict resolved each side's own row; zero label writes (path-driven). Writes: 2 relay strokes (pr_create; the report 6128243551 with the pointer 6128244348 on objectui#12256); mcp_calls 0.
    • The PR body: its "commits that follow" section still says "planned" and points the reader to the report comment for what landed; the seat leaves the body as is and the 终稿 speed-read on the PR carries what landed and the readings.
    • Out of scope, carried (docs and comments): AGENTS.md section 9 still gives --shard=1/4 (H5; governed, the lane's next AGENTS.md edit); two comments in changeset-release.yml say "four shards"; a comment in scripts/__tests__/check-unused-dependencies.test.ts says "4-shard report". None filed by this seat.

    A decision for the maintainer, not a blocker to landing: the test matrix width. The ruled number is 12 and the PR keeps it; the ruling's own rule (width = the measured total at about 10 min per leg) answers 13 on main's median (about 7,311 s over 12 legs) and on the PR's own headroom line twice, 14 at the max (8,052 s). Both balanced runs had a leg over the card's 720 s bound (753 s, 731 s), as did 9 of 11 unbalanced main runs, so the ten-run acceptance at 12 is unlikely to pass as measured. The dev recommends B (13 now, one mechanical commit: the job name, both --shard flags, test-aggregate --shards, the headroom and refresh --shards, the 13 Dependabot names, the doc). The seat's recommendation: land as delivered now, then let the headroom line on main's full-battery runs decide: if it keeps answering 13 (or 14) over the first runs, one mechanical follow-up commit moves the width, a data-driven edit under ruling B rather than a new card, and the acceptance in the landing record names the width it was read at. Four axes: long-term the width follows the data either way; business pull: landing now stops the coverage reds at the next full-battery run and unblocks the objectui lane's PRs waiting behind the main-red; AI error: the headroom reading is report-only; scope: at most one runner, on a public repository. A B-now ruling costs one more PR cycle (about 15 min) before landing; the maintainer's word decides.

    Landing: on the maintainer's Approve the seat readies the PR and arms the queue. After merge the seat reads the first full-battery run (the eight coverage walls against the 40-minute cap; both headroom lines) and then the ten-run acceptance; objectui#12256 closes with the PR's Fixes line and its landing is recorded there. This card stays pm:dispatched until the landing record.
15. os-zhuang

    closed this as completedin #12263on Oct 12, 2026
16. objectstack-fleet commented on Oct 12, 2026

    

    objectstack-fleetbot

    on Oct 12, 2026

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    LANDED — PR #12263 is MERGED (2026-10-12T22:00Z, approved by the maintainer, review 5496197961 on head 0e1a41c9, readied and auto-merge armed by hand with main merged in (8937ca97); the queue merged it as 1fb1ced3) and read in place on origin/main 1fb1ced3. Director seat, summon #37, session_01LqNgdPZB2Jnr5HpGbaqLeB, 2026-10-12T22:01Z.

    probe on origin/main	want	got
    ci.yml test-coverage: matrix [1..8], name Test (coverage shard N/8), COVERAGE_SHARDS: '8', timeout-minutes: 40	all	all
    vitest.config.mts: sequence: { sequencer: TestShardSequencer }	1	1
    scripts/test-shard-sequencer.mjs, test-shard-partition.mjs, test-file-timings.mjs, shard-headroom.mjs, scripts/test-shard-timings.json (schema objectui.test-shard-timings/2), .github/workflows/test-shard-timings-refresh.yml	6	6
    both aggregators' headroom steps (report-only, continue-on-error: true)	2	2
    the type-check job untouched by this merge (hunks against 7af0ab37 are comments)	untouched	untouched

    • The card was closed by the PR's Fixes line (closed_by_pull_requests lists PR ci(test): the coverage lane runs eight shards, then both test matrices shard by measured duration (objectui#12208, objectui#12256) #12263 alone), as was objectui#12256 (its own landing note is on that card); pm:dispatched stripped and the assignee released in this act. The test matrix stays at the ruled 12: the maintainer approved the PR as delivered; the width follows the headroom line on main (ACCEPT 6128336930).
    • Owed on this card (the card's acceptance), read by the seat: the first full-battery push run on main after this merge (1fb1ced3, in progress at this act): the eight coverage shards' walls against the 40-minute cap, both headroom lines (the longest leg and the width the measured total implies), the test-file-timings-N artifacts; then ten consecutive full-suite runs with the longest test leg under 720 s, or the data-driven width edit if the headroom line keeps answering 13. The refresh workflow's first scheduled PR (Monday 06:47 UTC) needs one push from the seat before CI runs on it (objectui#5397's posture).
    • Carried to the lanes, not filed (docs and comments): AGENTS.md section 9 still gives --shard=1/4; two comments in changeset-release.yml and one in scripts/__tests__/check-unused-dependencies.test.ts still say four coverage shards.
17. objectstack-fleet

    removed

    pm:dispatched

    on Oct 12, 2026
18. objectstack-fleet

    unassigned

    os-zhuang

    on Oct 12, 2026
19. objectstack-fleet commented on Oct 12, 2026

    

    objectstack-fleetbot

    on Oct 12, 2026

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    Reading 1 on objectui#12208 (the first full-battery push run after 1fb1ced3: run 38314070610, 22:00–22:23Z, conclusion success), read on the jobs API and the aggregators' notices by the director seat, 2026-10-12T22:34Z.

    lane	legs	walls (s)	longest	the aggregator's headroom line
    Test (12, the sequencer's first run on main)	12	416 · 631 · 647 · 678 · 551 · 681 · 697 · 696 · 544 · 515 · 414 · 618	697 s (shard 7)	"longest Test (shard 7/12): 11m37s = 58% of the 20-minute cap, 8m23s of headroom; total 118m08s over 12 shard(s); at the 10-minute target per shard that is 12 shard(s) (the matrix has 12)"
    Test (coverage) (8, the first run at eight)	8	766 · 1,197 · 921 · 1,283 · 1,233 · 1,231 · 1,220 · 1,134	1,283 s (shard 4)	8 shards sum 8,985 s; the longest 53 % of the 40-minute cap; at the 20-minute target that is 8

    • Acceptance, run 1 of 10: the longest test leg 697 s, under the 720 s bound (before: 697–796 s on main, 9 of 11 runs above 720). The headroom line's implied width is 12, not the 13 the PR's own runs printed: the sequencer's first main run spread the legs 414–697 s (the PR runs' two balanced readings were 425–731 and 412–753). The width question stays with the data: nine more runs.
    • objectui#12256's acceptance, run 1 of 10: every coverage shard under 60 % of its ceiling (the longest 53 %), Test (coverage) green: "the merged 8-shard report was produced for 1fb1ced…, the thresholds passed over the whole map". The coverage reds stopped on the first run, as H1 said. Recorded on main-red: Test (coverage) fails on main's push lane: a coverage shard hits its 40-minute ceiling on 7 of the last 25 CI push runs, so the coverage gate is not evaluated on those commits #12256 as well.
    • The test-file-timings-N artifacts of this run are the refresh workflow's first input (Monday 06:47 UTC).