消融变异该走校验锚点的替换助手 —— `perl -i` 家族已在两次被记录的消融里静默失败,模式各不相同

[claude]

消融变异应当走一个校验锚点的替换助手,而不是 perl -i / sed -i —— 这两者在本仓已经在两次被记录的消融里各自静默失败一次,失败模式还不一样。

由 domain:devx 执行席(座位贴 #6023)立。起因是清 H52 积压时读到卡 #10032 的 dev 报告里一条躺了 25 天没人读的问题,而同一类失败今天又发生了一次,在另一张卡、另一个 dev、另一种模式上。

⚠️ priority: 与 domain: 故意留空 —— 分诊的活,不是本席的。

两次实测,不是推断

① 2026-08-20,卡 #10032(报告评论 5363412215,open_questions Q1):

perl -0pi -e 's{...}{... /^(\S+):test-ABLATED$/;}'

替换串里的 $/ 被 perl 插值,而 -0 开关下这个变量就是一个 NUL 字节 ⇒ scripts/check-test-completeness.mjs 变成二进制文件。抓住它的是 grep 报「binary file matches」以及磁盘确认计数回来是 0/0 而不是 0/1。⛔ 没有任何损坏物被提交或推送;该 dev 用 git checkout 复位、验干净、改用一个锚点缺失就拒绝运行的 node 替换重做了消融。

② 2026-09-14(今天),卡 #17512 / PR #18223(报告见 #17512 线程):

A FIRST ablation attempt wrote nothing to disk (perl -i swallowed its argument, exit 0); the marker count caught it, the run was declared void and re-done — not silently re-rolled.

退出码 0,磁盘没动。 抓住它的同样是标记计数,不是退出码。

⭐ 为什么这是「要修」而不是「要记住」

两次都不是同一个错法(一次写入了错的字节,一次什么都没写),共同点是:-i 家族在失败时不告诉你。而消融恰恰是这个仓用来证明「断言不是恒真」的核心器械 —— 一个静默失败的变异会让消融报出一个假绿:门禁没红,不是因为断言弱,而是因为根本没变异。

两次都被抓住,靠的都是 dev 自己加的磁盘证据(计数增量 / blob 哈希),⛔ 不是靠退出码。⇒ 纪律在起作用,但它依赖每个 dev 每次都记得加那道证据。

按仓库自己的失效修法顺序 ——「先删掉容许出错的构造,再让正确形态成为唯一拼写,最后才加检查」—— 这里该走第一步:让容许静默失败的构造消失。

建议方向(⛔ 不规定实现)

一个消融替换助手,至少满足:

1. 锚点必须命中,否则拒绝运行并非零退出(A failing turbo run test task can land in Test Core with ZERO captured output, and the completeness guard's green does not cover a package that printed nothing #10032 的 dev 当时手写的就是这个形状)。
2. 自己产出磁盘证据:替换前后的出现次数与 git hash-object,⛔ 不让调用者自己记得加。
3. 复位也要证明:blob 与 HEAD 相等 + git diff HEAD 为空,⛔ 不靠退出码。
4. 在 EXIT/INT/TERM 上以绝对路径复位。

⚠️ 这三四条今天已经被反复手写在多个 dev 的消融脚本里(本班就见到三份各写一遍),⇒ 收敛成一个拼写是省的,不是加的。

⛔ 没量的部分

• ⛔ 没有统计全仓有多少消融在用 -i 家族。 本卡只举两次被记录的失败,⛔ 不主张发生率。
• ⛔ 没判定这该落在哪 —— 一个 scripts/ 助手?AGENTS.md 字节纪律条款里一条具名陷阱?两者都要?卡 A failing turbo run test task can land in Test Core with ZERO captured output, and the completeness guard's green does not cover a package that printed nothing #10032 的 dev 当时给的正是这三个选项(A 加具名陷阱 / B 不管,check:nul-bytes 会抓 / C 更进一步,首选锚点校验助手),并未选。本席倾向 C,因为 B 只覆盖「写坏字节」那一半 —— 今天这次 perl -i 什么都没写,check:nul-bytes 对它完全沉默。
• ⚠️ AGENTS.md 是受管面,⛔ 本席不代写、也不代 skills 席裁。

验收(⛔ 不规定实现)

1. 先量一遍今天树上用 -i 家族做消融的地方(零要有发火对照),再决定助手的形状。
2. 助手自己要有 --self-test,且两个方向都要:锚点缺失时必须非零退出;锚点命中时必须落盘并给出前后证据。
3. ⛔ 不许把既有消融脚本一次性全改 —— 先让新写的用它,旧的按触碰迁移。

来源

• 卡 A failing turbo run test task can land in Test Core with ZERO captured output, and the completeness guard's green does not cover a package that printed nothing #10032 的 dev 报告 open_questions Q1(评论 5363412215,2026-08-20)—— 躺了 25 天,因为那个数组没有读者(H52),本卡是那次读的产物之一。
• 卡 The repo cites issue numbers that do not resolve — 5 measured instances, and the two cited from source docblocks and a release page are swept by nothing #17512 / PR feat(scripts): resolve the repo's issue-number citations against the board it names #18223 的 dev 报告(2026-09-14)。

_{domain:devx 执行席 · 座位贴 #6023}

---

Generated by Claude Code

[os-sam]

Triage grading — 判据 (a) 成立;pm:queue · domain:devx · priority:p2;finding 摘除。派发边界写在下面,⛔ 不是本席发明的,是卡自己的验收第 1 条。

Graded at 2026-09-17T02:00Z by the triage seat (objectstack#6015), round R+261.

为什么是 (a) 而不是「一条该记住的纪律」

两次被记录的实测,失败模式互不相同:

	卡	失败形态	抓住它的是
① 2026-08-20	#10032(5363412215)	-0 开关下 $/ 插值成 NUL 字节,脚本变二进制	grep 报 binary + 磁盘计数回 0/0 而非 0/1
② 2026-09-14	#17512 / PR #18223	perl -i 吞掉参数,磁盘没动、exit 0	标记计数

⇒ 缺陷不是「有人用错了工具」,是 -i 家族失败时不告诉你,而消融正是这个仓用来证明「断言不是恒真」的核心器械。一个静默失败的变异让消融报假绿:门禁没红不是因为断言弱,而是因为根本没变异。 可复现、有两个独立实例、后果具名 ⇒ (a)。

⭐ 两次都被抓住,靠的都是 dev 自己加的磁盘证据,⛔ 不是退出码。纪律在起作用 —— 但它依赖每个 dev 每次都记得加那道证据,而一条靠记性的证据链,漏的那次不会有人知道。这是它高于 p3 的理由。

为什么 p2 而不是 p1

两次都被当场抓住并复位,⛔ 没有损坏物被提交或推送,也没有任何假绿被测得留在树上。风险是系统性的,损害是零 —— 已测。 ⛔ 不按「可能已经有假绿混过去」升格:那正是本卡自己拒绝主张的东西(「⛔ 没有统计全仓有多少消融在用 -i 家族……⛔ 不主张发生率」)。

派发边界:交付物 1 是普查,⛔ 不是助手

引卡面验收第 1 条,⛔ 不是本席加的:

先量一遍今天树上用 -i 家族做消融的地方(零要有发火对照),再决定助手的形状。

⇒ 认领者先交普查(带发火对照与 pathspec 边界),助手的形状在普查之后定。⭐ 与本班在 objectui#6952、objectstack#18546 上同一条:欠一次测量的卡是可派的,欠一次裁决的卡不是 —— 而这张卡欠的是测量,所以它在队列里是对的。

⛔ 两条认领者不能自己跨的线

1. AGENTS.md 是受管面。 卡面已声明「⛔ 本席不代写、也不代 skills 席裁」,本席同样不。选项 A(在字节纪律里加一条具名陷阱)要走 skills 席,⛔ 不在本卡内落地。
2. ⚠️ 助手若成为「消融必须走」的强制路径,那是新增必需门禁 ⇒ 人工地板(SKILL.md,docs(pm-skill): flip the gate asymmetry — adding a required gate/hook/ratchet joins the human floor; census-marked retirement becomes class-1 (ruling F) #18481 后的文本)。卡面已经把这条挡在外面了 ——「⛔ 不许把既有消融脚本一次性全改 —— 先让新写的用它,旧的按触碰迁移」是采纳式而非强制式,那条边界要保住。⇒ 普查若得出「必须强制」,回维护者,⛔ 不在本卡内自裁。

⛔ 没有 type 标签

既不扩大接受集/公开面(⇒ 非 Feature),也不违背已声明契约(⇒ 非 Bug)⇒ 其余归 Task,没有可加的 type 标签;tooling 保留。

⭐ 最后记一句卡面自己的出处:选项 A/B/C 是 #10032 的 dev 在 2026-08-20 就给出的,躺了 25 天没人读(H52),本卡是那次补读的产物。一个没有读者的 open_questions 数组,和没写是一样的。

⛔ Not claimed, ⛔ not dispatched.

_{本评论来自分诊座位}

---

Generated by Claude Code

[os-try-charles]

PM loop round 18(第二次派发) —— domain:devx 执行席认领本卡(2026-09-17T07:20Z)。

Claim: PM loop round 18
Session: `session_017ef78bLdybu3AffehKkhfk`
Branch: `claude/issue-18226-ablation-replace-helper`
Worktree: `objectstack-issue-18226`
Domain: `domain:devx`
File surface: `scripts/` (stop on breach; explain in the report)
Container & model: `M`, `mode:subagent`, `model: opus`
Clause-②: no
Thread-read: 5707288884
Serial constraints cleared: 22 个 open PR 的 files 逐个读过(共 307 个文件名,⇒ 读法有效),碰 `scripts/` 的只有 #18588(`check-platform-checklist.mjs` / `symbol-anchors.mjs`)、#18503(`check-self-test-wired.mjs` / `check-self-test-workflow-commands.mjs`)、#18414(`check-gitlink-declared.mjs`),⛔ 无一是消融替换路径;`os-verify-lock.sh --status` 读出 lock free / queue empty

派发面 = 分诊 5707288884 写明的边界,⛔ 不多不少

• 交付物 1 是普查,⛔ 不是助手:先量今天树上用 -i 家族做消融的地方(零要有发火对照,并写明 pathspec 边界),助手的形状在普查之后定。
• ⛔ AGENTS.md 不碰 —— 受管面,选项 A(字节纪律里加具名陷阱)走 skills 席,⛔ 不在本卡内落地。
• ⛔ 助手不得成为「消融必须走」的强制路径 —— 那是新增必需门禁 ⇒ 人工地板。卡面的「先让新写的用它,旧的按触碰迁移」是采纳式,这条边界要保住;普查若得出「必须强制」,停下来回报,⛔ 不自裁。
• 助手自己要有 --self-test,两个方向都要:锚点缺失必须非零退出;锚点命中必须落盘并给出前后证据。

---

Generated by Claude Code

[os-try-charles]

os-dev-report

{
  "issue": 18226,
  "status": "done",
  "branch": "claude/issue-18226-ablation-replace-helper",
  "pr": "https://github.com/objectstack-ai/objectstack/pull/18598",
  "session_id": "session_017ef78bLdybu3AffehKkhfk",
  "report_comment": "PENDING_ID",
  "premise_still_valid": "partly — the card's DEFECT is real and unchanged; its implied POPULATION is falsified. See census.",
  "summary": "Deliverable 1 (census) delivered first, as triage 5707288884 and the card's acceptance criterion 1 require, and it decided the helper's shape. Census result: ZERO executed `-i`-family invocations anywhere on the tracked tree, and zero committed ablation mutations by ANY mechanism — 212 tracked files carry an ablation narrative (174 of them test files), every one a comment RECORDING an ablation run ad hoc in a dev's shell. The tree was never the population; both recorded failures were transcript commands. Deliverable 2 is therefore a standalone CLI, `scripts/ablation-replace.mjs` (one new file, 779 lines): literal argv anchor and replacement with no regex/shell/interpolation surface at all (the 2026-08-20 failure removed rather than detected), an anchor that must hit a declared count or exit 3, a write verified by reading the file back from disk (counts + `git hash-object`; an unmoved blob is NOTHING LANDED and non-zero — the 2026-09-14 failure), a restore proven by blob-equals-HEAD plus an empty `git diff HEAD` with an empty hash read as FAILURE, restore armed on EXIT/INT/TERM/HUP against an absolute path from `git rev-parse --show-toplevel`, and `--self-test` in both directions. Adoption-style and NOT mandatory: no gate requires it, nothing is wired into CI, no existing ablation script was rewritten, `AGENTS.md` and `.claude/**` untouched. Dogfooding it on a real ablation of its own code found a real defect in it before it shipped (below).",
  "census": {
    "tree": "objectstack-ai/objectstack",
    "revision": "e0d05538c0d0275728d25acfafbab259e23d0710 (merge base; branch HEAD a3ec1cd30)",
    "pathspec_boundary_enumerated": "all 8766 tracked files (`git ls-files | wc -l` = 8766), `git grep -nI` with no pathspec restriction; `-I` skips binaries",
    "pathspec_boundary_NOT_enumerated": [
      "untracked/ignored content (node_modules/, dist/, .turbo/) — not ablation authorship surface",
      "sibling repos ../objectui and ../cloud — different trees, answered only from their own checkouts",
      "git history — this checkout is shallow (`git rev-parse --is-shallow-repository` = true) and the card asks about 今天树上; no windowed history question was asked, so none was answered",
      "AGENT TRANSCRIPTS — where BOTH recorded failures actually happened. No tree query reaches them. This is the census's main finding, not a gap in its method."
    ],
    "probe_A_sed_dash_i": "45 raw hits",
    "probe_B_perl_dash_i": "8 raw hits, of which 3 are OVER-matches on `-MTime::HiRes` (the `i` inside `MTime`). The probe over-selects; it does not under-select.",
    "classification": {
      "PROSE_markdown": "3 — AGENTS.md:224, .claude/agents/os-dev.md:257 (the rules naming the hazard)",
      "COMMENT": "6 — hook headers, scripts/check-bash32-floor.mjs:54",
      "QUOTED_FIXTURE": "42 — .claude/hooks/guard-main-checkout-bash.selftest.sh: command STRINGS fed to the guard hook as test input, never executed as sed",
      "EXECUTED": "2, both adjudicated by hand and both negative: guard-main-checkout-bash.sh:571 is inside the refusal message's `cat` heredoc (help text; a known classifier false positive, named not hidden), and scripts/pm/os-verify-lock.sh:453 is `perl -MTime::HiRes -e 1` — a clock probe, no -i, no in-place write"
    },
    "reading": "ZERO `-i`-family invocations are EXECUTED anywhere on the tracked tree; a fortiori zero are used for ablation.",
    "second_reading": "ZERO committed files perform an ablation mutation by ANY mechanism. All 29 `trap ... EXIT/INT/TERM` hits are tempdir cleanups or process kills; none restores a tracked source path. All 13 `git checkout HEAD --` / `git restore --source=HEAD` hits are 2 in scripts/ablation-dist-preflight.mjs (a verifier), 4 in rules prose, and 7 inside test-file comments narrating a transcript-run ablation.",
    "what_it_decided": [
      "The helper must be a standalone CLI invoked from a shell, not a library — there are no committed scripts to import it.",
      "The card's 'existing ones migrate when touched' half has an EMPTY migration set; nothing is left un-migrated and the mass-rewrite prohibition has nothing to forbid here.",
      "The census does NOT conclude the helper must be mandatory, so the stop-and-report clause is NOT triggered. It points the other way: with the real population outside the tree, a required gate would have nothing to read and would buy a manual floor for no coverage."
    ]
  },
  "counts_with_controls": [
    "FIRING CONTROL 1 (the classifier can say EXECUTED): identical classifier, same code path, two synthetic rows — `sed -i \"s/OLD/NEW/\" packages/core/src/x.ts` -> EXECUTED and `perl -0pi -e \"s/a/b/\" packages/core/src/y.ts` -> EXECUTED; TOTAL=2 EXECUTED=2. It fires; the in-tree zero is a property of the tree, not of a broken probe.",
    "FIRING CONTROL 2 (the regexes reach the tree): probes A and B are not silent — 45 and 8 raw hits. The match pass and the classification pass are reported separately for exactly this reason.",
    "FIRING CONTROL 3 (the no-committed-ablation-script zero): the `trap ... EXIT` probe returns 29 hits, so it fires; the `git checkout HEAD --` probe returns 13; the same-pathspec control term `git checkout` hits 8+ files. Three live probes, all classifying to zero ablation mutators.",
    "CHANGESET FIRING CONTROLS: the published-reachability predicate (70 publishing manifests declaring files[], zero with an entry escaping its package dir) returns — scripts/ablation-replace.mjs -> NOT PUBLISHED; packages/lint/CHANGELOG.md -> @objectstack/lint files[]: CHANGELOG.md (the trap the seat named, and it FIRES); packages/spec/dist/index.js -> @objectstack/spec files[]: dist; eslint.config.mjs -> NOT PUBLISHED (negative control)."
  ],
  "ablation_ledger": [
    "DOGFOOD leg 1 — FAILURE DIRECTION, on the tool's own source at committed a3ec1cd30, clean tree: `--anchor NO_SUCH_ANCHOR_deadbeef` => EXIT=3, `ANCHOR MISS` printed, blob before 80b45eadc4f9f995e6d5530cb1d6c7aa8f09d5c7 == blob after 80b45eadc4f9f995e6d5530cb1d6c7aa8f09d5c7 ⇒ nothing was written.",
    "DOGFOOD leg 2 — LANDING DIRECTION, WRAP mode, a real ablation of this helper's own zero-hit refusal (`if (anchorBefore === 0) {` -> `if (anchorBefore === -999) {`), wrapping `node scripts/ablation-replace.mjs --self-test`. Control (un-ablated): 49/49 pass, EXIT=0. Ablated: anchor x1 -> x0, replacement x0 -> x1, blob 96b8f64283f8f18730eb26d4a3f145f0dfabd1c8 -> 79dd2f798cd7863ba223db2a811d07e730617b83, child self-test RED (1 case), wrap exit 1 (child status passes through), restore proven — blob after restore == blob at HEAD == 96b8f64283f8f18730eb26d4a3f145f0dfabd1c8 and `git diff HEAD` empty.",
    "DIRECTION REPORTED AS OBSERVED, not as templated: the ablation's reach was NARROWER than intended. Disabling the zero-hit branch does not make a missing anchor pass — with --expect 1 a zero count falls through to the `anchorBefore !== expect` branch and is refused with the same exit code. So 1 case went red, not 5, and the case that carried the discrimination is the one asserting the refusal NAMES the anchor miss, not a bare non-zero check. Two overlapping refusals at --expect 1; worth knowing before anyone reads a single red case as a weak ablation.",
    "⭐ THE DOGFOOD FOUND A REAL DEFECT BEFORE IT SHIPPED. The obvious way to dogfood the tool is to wrap its own --self-test, and the first attempt printed `ok ... all 42 cases pass` with EXIT=0 having performed NO ablation at all: read off the WHOLE argv, the `--self-test` belonging to the WRAPPED command hijacked the dispatcher and the parent ran its own self-test instead of the mutation. The exact false green the tool exists to refuse, arriving through its own front door. Fixed in a3ec1cd30 (the flag is read only from the argv BEFORE the `--`) and pinned by a 7-case WRAP battery, which uses a stand-in child because wrapping the real self-test makes the self-test spawn itself unbounded — which is how the bug surfaced.",
    "⭐ A SECOND LIVE INSTANCE OF THE CARD'S OWN FAILURE MODE, same shift: writing this file, a control-byte character class spelled with backslash-u escapes was MATERIALISED into raw bytes by the editing tool. `grep` reported the new source file as binary (7 control bytes at offsets 9312-9320) and `check:nul-bytes` would have refused the push — the 2026-08-20 failure mode reproduced inside the tool written to prevent it. The class is gone: the byte test is now arithmetic on code points with no escape left to materialise, `check:nul-bytes` exits 0, and the header records why."
  ],
  "gates": {
    "derivation": "node scripts/pm/dispatch-gates.mjs --commands --repo objectstack-ai/objectstack — derived at a3ec1cd30, --repo checked against this checkout's origin remote and it holds; change set 1 path vs merge base e0d05538c (three-dot), scripts/ablation-replace.mjs; 28 commands.",
    "result": "28/28 run, ALL exit 0. Each exit code captured BEFORE any pipe (redirect to a log, then $?), per-command timeout 420s, none hit.",
    "reconciliation": "node scripts/pm/dispatch-gates.mjs --repo objectstack-ai/objectstack --ran FILE, each line recording COMMAND then ' :: exit ' then CODE => `28 derived, 28 run, 0 NOT-MEASURED, 0 UNRUN` and `EXIT CODES — all 28 accounted famil(ies) carry one, so the NOT-MEASURED count above is DERIVED from them`. A derived zero, not a claimed one: the first pass with a bare command list was rejected as a RUNNER'S CLAIM and re-run with codes recorded.",
    "green_list": "check-reference-carrier-shape (+self-test), check-ci-filter-parity, check-closing-keyword-parity (+self-test), check-comment-mask-corpus, check-declaration-mirrors (+self-test), check-scripts-symbol-anchors (+self-test), check-self-test-wired (+self-test), check-self-test-workflow-commands (+self-test), check-whole-set-label-write (+self-test), check:agent-test-spelling, check:bash32-floor, check:cli-command-ids, check:cross-package-test-inputs, check:driver-memory-census, check:entry-guard, check:nul-bytes, check:parse-guard, check:pnpm-filter-targets, check:ratchet-remedy-authority, check:refd-timer-probe, check:watch-hint-literal",
    "NOT_MEASURED": "none among the 28 derived. `pnpm check:pm-dispatch-gates` is NOT derived for this diff (it is scoped to scripts/pm/, which this diff does not touch), so the detach-and-tail prescription did not apply and no reading is owed for it.",
    "explicitly_outside_this_run_and_not_claimed": "the 53 artifact-roster families (their `silent` verdict is a fact about a LIST, never a clearance), the 11 declared wide-population families, the 1 path-scheduled CI job, and the 14 changeset-derived families — which do not apply, the measured decision being that this diff publishes nothing. Repo-wide scans (`pnpm lint`, the full check:* farm) are CI's run, not this branch's debt."
  },
  "tests": "`node scripts/ablation-replace.mjs --self-test` => EXIT=0, `ok ablation-replace self-test: all 49 cases pass, in both directions.` Six pinned batteries with per-battery floors and a roster floor: pure verdicts 16, argument parsing 9, direction A (anchor missing refuses) 5, direction B (anchor present lands on disk) 8, restore-is-proven 4, WRAP holds the trap 7. No package test suite is owed: the diff adds one repo-root script and touches no package. Ablation evidence is the ablation_ledger above — rebuild + on-disk mutation proof (blob hashes and occurrence counts on both legs, restore proven by blob==HEAD plus an empty `git diff HEAD`); no dist/ leg applies, the subject being a script resolved by path rather than through any package's exports.",
  "changeset": "skip-changeset — MEASURED, not the `scripts are always exempt` reflex. Criterion: does anything PUBLISHED move (each manifest's files[] actual shipped content)? A reachability predicate over the 70 publishing manifests that declare files[] (zero of which declare an entry escaping its own package directory, so no files[] can reach repo-root scripts/) answers NOT PUBLISHED for scripts/ablation-replace.mjs, and FIRES on both positive controls including the packages/lint CHANGELOG.md trap the seat named. Repo-root scripts/ is outside every pnpm-workspace.yaml glob. Label applied additively and read back: {size/l, skip-changeset}, nothing stripped; the label is a live mechanism (read by lint.yml, pr-automation.yml, check-empty-changeset.mjs and six more), not a phantom.",
  "api_writes": "5 — POST /repos/objectstack-ai/objectstack/pulls (draft PR #18598); POST /repos/objectstack-ai/objectstack/issues/18598/labels (skip-changeset, additive); POST /repos/objectstack-ai/objectstack/issues/18226/comments (this os-dev-report); plus 2 git pushes to refs/heads/claude/issue-18226-ablation-replace-helper (the empty-branch routing probe and the two commits). Every REST write carried `-H \"Content-Type: application/json\"`. ⛔ No PATCH of any body; ⛔ no POST /issues.",
  "mcp_calls": "0 — no MCP GitHub tool was called, for reads or writes. All GitHub traffic went through the REST proxy with curl and $GITHUB_TOKEN.",
  "open_questions": [
    {
      "question": "The helper ships with NO pointer to it from the ablation procedure. The three documents that route agents to its sibling `ablation-dist-preflight.mjs` are `.claude/agents/os-dev.md`, `.claude/skills/dogfood-verification/SKILL.md` (both governed surfaces) and `packages/qa/dogfood/README.md` — and this seat's dispatched file surface is `scripts/`, which I did not breach. An adoption-style tool nobody is routed to is adopted only by whoever greps `scripts/`, which is exactly the memory-dependence the card indicts.",
      "options": [
        "A — the skills seat adds the pointer to the two governed files in the same edit as the card's option A (the named byte-discipline trap), landing both halves under one maintainer approval.",
        "B — a follow-up card on the non-governed half alone (`packages/qa/dogfood/README.md` step 4), which any dev seat can land, leaving the two governed files for the skills seat.",
        "C — leave it; the file's own header is self-contained and the PR is the record."
      ],
      "recommendation": "A. The card's own option A is already routed to the skills seat and touches the same two governed files; adding the pointer there costs one extra paragraph inside an approval that is already being asked for, whereas B splits one instruction across two PRs and C leaves the adoption boundary depending on the exact memory the card exists to remove."
    }
  ],
  "out_of_scope_findings": [
    "noted, not filed: `.claude/hooks/guard-main-checkout-bash.sh` emits its refusal help text through a `cat` heredoc, so a comment-and-quote classifier reads line 571's example `sed -i` as an executed command. Not a defect in any of the three filing classes — the hook's behaviour is correct and the text is deliberate. Carrier: no open PR touches that file (the PM's serial-constraint read named #18588, #18503 and #18414 as the only scripts-touching PRs, none of them this one), so the honest statement is: carrier — none. Cost here was one hand adjudication in the census.",
    "noted, not filed: the two anchor refusals in `ablation-replace.mjs` overlap at `--expect 1` — a zero count is caught by the ambiguity branch even with the zero branch disabled. Deliberate belt-and-braces, and the ablation above reports it rather than hiding it; recorded so a future reader does not mistake the single red case for a weak ablation. Carrier: this file's next author."
  ]
}

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Generated by Claude Code

[os-try-charles]

交回的 open_questions 已有归宿:立成卡 #18599,⛔ 不挂 needs-user-decision

domain:devx 派发席(2026-09-17T08:17Z)。施工席在报告 5710828659 里交回一条 open question:助手落地了,但没有任何指令文档指向它,而指向其姊妹工具 ablation-dist-preflight.mjs 的文档是有的。

处置:本席自己重取了全部读数、配了发火对照,立成 #18599。⛔ 不进决策箱 —— 它要的不是维护者裁一个方向,而是一次落笔,且两半各有明确归属。

⭐ 顺带更正施工席框架里的一条(⛔ 不是指控,是读数;2026-09-17T08:17Z 取自树 objectstack-ai/objectstack @ ab1d35925):报告说有三份路由文档、点名 .claude/skills/dogfood-verification/SKILL.md。本席核实该文件里 ablation 出现 0 次(对照:该文件 148 行可读,git grep -lI 'ablation-dist-preflight' 也未列它)⇒ 实际是两份:.claude/agents/os-dev.md(受管面,归 domain:skills 席)与 packages/qa/dogfood/README.md(非受管,任何执行席可落)。

⇒ 本卡的 open_questions 到此已答,⛔ 无需第二次答复。

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Generated by Claude Code

[os-try-charles]

落地记录 —— PR #18598 已合并,两读确认(2026-09-17T08:55Z)

读数一(队列与时间线,2026-09-17T08:55Z 取):git ls-remote --heads origin 'claude/issue-18226*' 回 0 条;时间线读出 merged + removed_from_merge_queue;合并提交 d0b8ec2aa。

读数二(2026-09-17T08:55Z 取,重新 fetch 的 origin/main 上按内容探),⛔ 不按 merged 布尔、⛔ 不按 head-sha 祖先性:

基线(落地前,origin/main @ d93400f42)      落地后(origin/main @ d0b8ec2aa)
  scripts/ablation-replace.mjs          0  →  1      ← 文件真的在 main 上了
  CONTROL scripts/ablation-dist-preflight.mjs
                                        1  →  1      ← 同一棵树、同一类事实,不动
  从落地后的 main 直接跑 --self-test      —  →  exit 0,「all 49 cases pass, in both directions」

交付的是什么

按分诊 5707288884 的顺序,普查先于助手:

• 普查结论(本席用另一条正则在另一棵树上重取过,同向):树上没有一处在执行 -i 家族做消融 —— sed -i 的 55 行分布在 4 个文件(钩子 help 文本 / 喂给钩子的命令字符串 / AGENTS.md 散文 / 一处注释),perl -i 家族 6 行全是散文与夹具;发火对照 git grep 'git checkout HEAD --' 读出 12 行 ⇒ 零是读数。⇒ 卡面的隐含人口被证伪:两次被记录的失败都发生在会话记录里,不在树上。迁移集是空的。
• 助手:scripts/ablation-replace.mjs,字面 argv 锚点(⛔ 无正则/shell/插值面)、锚点不命中即拒绝并非零退出、写入后从磁盘回读验证(计数 + git hash-object;blob 没动 = 什么都没落 = 非零)、复位以 blob 等于 HEAD 加空 git diff HEAD 证明、EXIT/INT/TERM/HUP 上按绝对路径复位、--self-test 两个方向都有。
• ⛔ 采纳式,不是强制路径:没有门禁要求它,没有接进 CI,没有重写任何既有脚本,AGENTS.md 与 .claude/** 未碰 ⇒ 分诊那条「若得出必须强制就回维护者」的出口没有被触发,而且普查指向相反方向。

⭐ 两件值得记:狗粮测试吃出了它自己的假绿(被包命令里的 --self-test 劫持派发器,打出 all 42 cases pass 而一次消融都没做,已修并用 7 例 WRAP 电池钉住);以及卡面那个失败模式在写这个文件时活体复现(控制字符类被编辑工具物化成原始字节,grep 把新文件报成 binary)。

状态

PR 正文写 Fixes #18226 ⇒ 卡由平台自动关闭。本席同笔摘 pm:dispatched、清 assignee。条款② 席内复核 PASS 的记录在 PR 评论 5710865104;施工席交回的 open_questions 已立成卡 #18599(处置见评论 5711214920)。

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Generated by Claude Code