check-test-source-alias loses a bare side-effect import 'x'; whenever any later import … from … follows it, so the clocked-window rule reports a file that already applied the fix it prescribes

Found while adopting assertEngineFindOnePredicate in packages/services/service-datasource (#12068). Filed unassigned; not fixed there — the fix needs its own --self-test cases, which is a different verification surface from that card.

The defect

IMPORT_PATTERNS in scripts/check-test-source-alias.mjs (line 670) puts the import … from '…' alternative FIRST, and its clause capture is an unbounded lazy [\s\S]*?:

/(?:^|[\s;})])(?:import|export)\s+([\s\S]*?)\s*from\s*['"]([^'"]+)['"]| … |(?:^|[\s;}])import\s+['"]([^'"]+)['"]/g

At the position of a bare side-effect import 'x';, alternative 1 is tried first. It can succeed by letting [\s\S]*? run across the rest of that statement and into the next import, terminating at that one's from '…'. The whole side-effect import is swallowed inside the clause capture, and only the later specifier is reported. Nothing anchors the clause to one statement.

moduleLoadSites() therefore never adds 'x' to moduleScope, and clockedWindowFindings() — which suppresses a finding only if (moduleScope.has(site.spec)) — reports a dynamic load as an unpaid clocked window even though the file pays it at module top.

Minimal reproduction

Run against the regex as it stands (the same three inputs differ only in whether/where a second import appears):

A  bare import, NO later from  -> ["pkg/kernel"]
B  bare import THEN a from     -> ["other"]            <-- 'pkg/kernel' LOST
C  a from THEN bare import     -> ["other","pkg/kernel"]

Case B is the defect. Case C is the same two statements reordered, and it reads correctly — so the verdict depends on import ORDER, not on what the file loads.

Why it matters: the gate contradicts its own remedy

packages/services/service-datasource/src/__tests__/datasource-admin-plugin.test.ts has carried import '@objectstack/spec/kernel'; at module top since PR #10120 — placed there by this gate's instruction. Adding one ordinary import … from '@objectstack/metadata-core'; on the following line made the gate report:

✗ …/datasource-admin-plugin.test.ts:199: `import('@objectstack/spec/kernel')` is paid inside a function body — a CLOCKED window.
  This file has no module-scope load of `@objectstack/spec/kernel`, …
  Add a module-top side-effect import …:
    import '@objectstack/spec/kernel';

The prescribed line is already there, three lines above the import that triggered the misreading. An author who trusts the message adds a duplicate and stays red; an author who does not is left to conclude the gate is noise. Both outcomes cost more than the rule buys.

The rule only runs when offendingSpecs.size > 0, so a package acquires this misreport the first time it gains any unaliased artifact import — which is exactly when someone is already editing it and least able to tell a real finding from a false one.

Blast radius

scripts/check-type-source-resolution.mjs (line 692) carries a near-identical IMPORT_PATTERNS with the same unbounded first alternative, so it should be measured for the same shape and fixed in the same act if it shares it.

Same family as #12320 (check-driver-conformance: "the unbounded import regex still spans two import statements"), which was fixed for that gate; this is the unfixed instance of the same class two gates over.

Suggested shape (not prescriptive)

Bound the clause so it cannot cross a statement boundary — an import clause never contains ;, while a legal multi-line clause never does either, so a ;-excluding class is a candidate that keeps multi-line imports working. Whatever the fix, per AGENTS.md it lands with --self-test cases pinning all three rows of the table above, since a detector that silently stops matching reports a spotless repo.

Current state in the tree

Not worked around in the gate. #12068 reordered the two imports in that one test file so the detector reads the truth, and says so in its PR body. That reordering is fragile by construction: the next author who adds an import after the side-effect line re-breaks it, with no comment able to prevent it.

fix(engine-doubles): close the two defects the recovered findOne swee…

Triage: pm:queue added (was half-annotated: lane, no pm-state), stays domain:devx (fix lands in scripts/check-test-source-alias.mjs), type Bug — the gate contradicts its own remedy on a reproduced input (reports the prescribed line as missing while it sits three lines above), and the verdict depends on import order rather than on what the file loads. Scope per the card: bound the clause capture so it cannot cross a statement boundary, land with --self-test cases pinning all three rows of the repro table, and measure scripts/check-type-source-resolution.mjs:692 for the same shape in the same act (same class as the already-fixed #12320 instance in check-driver-conformance). Note: the #12068 workaround (import reorder in datasource-admin-plugin.test.ts) is fragile by design and stays until this fix lands. domain:devx @ objectstack seat is currently vacant; card queues for the lane. Size/model suggestion: S, sonnet — mechanical with a gate-farm verdict.

Triage seat Routine, session session_0141hPLYP77G13UgcvMkBaxW.

Generated by Claude Code

Claim: PM loop round 13
Session: session_01PfaSTikked61BkcsB5Rn69
Branch: claude/issue-12555-import-regex-statement-bound
Worktree: objectstack-issue-12555
Domain: domain:devx
File surface: scripts/check-test-source-alias.mjs, scripts/check-type-source-resolution.mjs (stop on breach; explain in the report)
Container & model: M, mode:subagent, model: opus — dispatch-gates.mjs --tier this round returns "no path-derived mandate … floor sonnet · default opus · ceiling fable"; kept at the default (regex-semantics judgment plus a second file).
Clause-②: no
Serial constraints cleared: none today, but this card holds scripts/check-type-source-resolution.mjs for the lane — queued card #12572 is about that same file's doc-block and is ⛔ NOT dispatchable until this lands. Registered in the seat post's hot-file serial queue. Batch siblings #12634 and #12472 are on disjoint files.

Premise re-verified on origin/main before dispatch, both halves: the unbounded [\s\S]*? first alternative is still first (check-test-source-alias.mjs:671), and the blast-radius claim is confirmed — check-type-source-resolution.mjs:719 carries the byte-identical alternative. The card's "should be measured for the same shape" is therefore already answered: it shares it.

Generated by Claude Code

Dev claim (os-dev subagent, devx lane round 13 — separate from the PM claim above).

Session: session_01PfaSTikked61BkcsB5Rn69 (same session container as the dispatching PM; my identity bit is the branch below, per AGENTS.md shared-identity rule)
Branch: claude/issue-12555-import-regex-statement-bound (pushed, empty, write route verified green before first edit)
Worktree: objectstack-issue-12555
BASE: 168941cea851ca77a42ce5db01b77f1c91273bee
File surface: scripts/check-test-source-alias.mjs, scripts/check-type-source-resolution.mjs

Body read in full; no sanitizer truncation observed (repro table and blast-radius section both intact, body terminates on a complete sentence). Both comments read.

Starting: re-derive both halves of the PM measurement on my own checkout, read the prior art in #12320, then decide whether one shared fix is correct for both gates or whether the second file needs separate handling.

Generated by Claude Code

os-dev-report

{
  "issue": 12555,
  "status": "done",
  "branch": "claude/issue-12555-import-regex-statement-bound",
  "pr": "https://github.com/objectstack-ai/objectstack/pull/12768",
  "premise_still_valid": true,
  "summary": "Both halves of the PM measurement re-derived and CONFIRMED, with one correction: the defective FIRST alternative is byte-identical across the two files (md5 03ed0813e2edd9875a1350667352acf0 both sides), but the FULL regexes are not — check-type-source-resolution's dynamic-import alternative admits ':' and '<' as leading delimiters. Only the shared first alternative changed; those extra delimiters are now pinned by self-test. Bounded the clause with [^;'\"], the class #12320 landed in check-driver-conformance, NOT the ';'-only class the card floated: measured, ';'-only still fails under ASI (no terminator to stop on), while excluding the quotes closes it because every intervening specifier is quoted. Killed the PM's stated mechanism assumption in the safe direction — check-type-source-resolution has no consumer depending on the over-greedy behaviour (extractTypeImports reads only the specifier captures, never match[1]), so the shared fix is correct for both and can only ADD specifiers there, never remove one. Found a second manifestation the card did not describe: the swallow also runs BACKWARDS through a preceding 'export type X = any;', leaving a clause beginning with 'type' that isTypeOnlyClause then discards — so a real runtime import disappears through the type-only filter. That is what hid @objectstack/plugin-hono-server in @objectstack/hono, corroborated independently by check-type-source-resolution's registry having carried that same pair all along.",
  "tests": "All at 48c96bf5, every batch AND-joined so os-verify-lock's verdict certifies each part; gate verdicts quoted from the gates' own printed lines, never from a piped $?. BEFORE (origin/main): 'check-test-source-alias OK — 72 packages with tests scanned; 61 registered...' and 'check-type-source-resolution OK — 94 tsc program(s) across 77 packages scanned; 54 registered...' — 0 findings each. AFTER: both OK, 0 findings each. FINDING-COUNT DELTA = 0/0, but the detector's measurement moved by exactly one pair repo-wide, proven with the gate's own --list re-measure run against a git-show copy of the unmodified script: only diff lines are '@objectstack/hono' gaining '@objectstack/plugin-hono-server' and '303 -> 304 package-dependency pairs'; the 61-of-72 package count is unchanged. That one unmasked pair made the alias gate RED on first run (ALIAS_EXIT=1); resolved by correcting the ledger entry to the re-measured truth, documented in place (see open_questions). ABLATION (revert only the bound, keep the self-tests, from the committed state): mutation confirmed on disk by grepping BOTH the old and new text in both files (bounded=0 unbounded=1 each), restore confirmed by empty 'git diff HEAD' plus blob-hash equality against HEAD blobs for both files; SELFTEST_ALIAS_EXIT=1 (row B, rows B/C disagree, ASI, backward type-only swallow, moduleScope) and SELFTEST_TYPERES_EXIT=1 (row B, rows B/C disagree, ASI) — exactly the intended assertions fired, controls (row A, multi-line, genuine type-only, dynamic-alternative delimiters) stayed green. UNWIND PROBE (backs a claim written into a source comment): imports unwound on disk with position verified before running, gate reads green, GATE_EXIT_UNWOUND=0, restored with hash equality. GATES: 'pnpm lint' (eslint . --no-inline-config, WHOLE REPO) VERDICT command-exit 0 in 1m42s — no narrowing claimed. Families re-derived from the ACTUAL diff by 'scripts/pm/dispatch-gates.mjs --repo objectstack-ai/objectstack' letting the script compute its own changeset; the one comment edit pulled in 9 families the dispatch list could not name (objectql-double-limit, page-declaration-shape, published-files, slot-lookup, query-options-erasure, engine-double-contract, where-matcher, comment-mask-adoption, plugin-teardown-shape) — all run, all green. Both ledger-row obligations cleared: bare-root-worklist.mjs --self-test 'none stale, none missing, none contradicted'; check:pm-dispatch-gates green. Plus nul-bytes, entry-guard, parse-guard, bash32-floor, agent-test-spelling, cli-command-ids, pnpm-filter-targets, cross-package-test-inputs, ci-filter-parity, self-test-wired, self-test-workflow-commands, type-check-coverage, and both touched gates with --self-test. NOT MEASURED (declared narrowing): check:type-check-debt --re-measure needs the whole workspace built; the diff is two scripts/*.mjs files in no package's tsc program plus one comment-only test-file change, and a comment cannot move a tsc error count. Two earlier runs that are NOT findings and were re-run properly: a 2-minute tool timeout (exit 143) that spent 60s queued behind another agent's lock, and two gates refusing on an unbuilt worktree with their own 'Nothing was measured' text before pnpm install.",
  "mcp_calls": "6 — issue_read get, issue_read get_comments, add_issue_comment (claim), issue_write create (#12767), create_pull_request (#12768), add_issue_comment (this report). Bulk reads and the dedupe scan went through repo-scoped REST (probed HTTP 200; gh absent, and the /search/issues endpoint is refused for this session — 'sessions are bound to their configured repositories'), so dedupe used the repo-scoped issues list plus local grep over 187 open issues. The skip-changeset label was written with the additive REST endpoint and confirmed by read-back.",
  "open_questions": [
    {
      "question": "The unmasked @objectstack/hono pair forced a choice the registry's own docblock answers two ways. Its header says the map is 'MEASURED, not curated ... the exact set of unaliased artifact imports', and also that it is SHRINK-ONLY and that widening is 'not how a red build gets fixed'. Those point opposite ways here, because the entry was measured through a broken instrument: this is invisible pre-existing debt, not new debt. I updated the entry to the re-measured truth with the mechanism written in place, and filed the real remediation separately. Flagging it because it is a judgment about what that ledger MEANS, which affects the gate repo-wide, and it is reversible in one line.",
      "options": [
        "A — ledger correction (what I shipped): record the re-measured truth, document the cause in place, file the gate's prescribed alias fix as its own card (#12767). Keeps this PR inside its declared two-file surface and keeps CI green.",
        "B — ride the alias fix along here: add the anchored array-form entry to packages/adapters/hono/vitest.config.ts, leaving the ledger untouched. Removes the hazard now, but points that suite at plugin-hono-server's SOURCE, needs that package's tests actually run, and converts the existing @objectstack/runtime object entry to array form — a behavioural change to another domain's suite riding in a devx tooling PR.",
        "C — leave the gate red and let the PM route the alias fix first, landing this detector PR behind it."
      ],
      "recommendation": "A. The registry exists precisely to hold this class of debt — 303 other pairs sit in it — so recording this pair puts it on equal footing with the rest rather than special-casing it, and AGENTS.md already sanctions a re-measure forcing a ratchet count up ('when a re-measure forces a count up, rewrite the entry's note too'). B fails the bounded-in-place-fix test on 'no new verification surface' and could not be honestly verified in this worktree. C leaves the detector defect on main for another round while the fix sits ready. If a maintainer reads SHRINK-ONLY as absolute, reverting one ledger line and landing #12767 first gets to the same end state."
    }
  ],
  "out_of_scope_findings": [
    "filed as #12767: @objectstack/hono runs its tests against @objectstack/plugin-hono-server's dist — the missing vitest alias was hidden by the unbounded import regex (backward swallow through 'export type X = any;' into isTypeOnlyClause). Unassigned, no label, left for PM triage; the gate's prescribed anchored array-form alias is quoted in the card."
  ]
}

Surface note: the diff is the two declared gate scripts plus ONE comment-only change in packages/services/service-datasource/src/__tests__/datasource-admin-plugin.test.ts. That file carried a comment reading "ORDER IS LOAD-BEARING until #12555 lands" — false the moment this lands, and it names this card. Corrected to say the constraint is lifted; git diff of that file contains no non-comment line, and the reorder itself was deliberately NOT unwound (it would change module evaluation order in a suite this PR cannot cheaply run, and buys nothing the --self-test does not already guarantee). Declared here rather than assumed, since it is outside the two-file surface and it is what pulled in the 9 extra gate families.

Generated by Claude Code

Blocked-by: #12770

ESCALATE — the work is sound; one hunk in it is the maintainer's call

Reviewer of record: devx lane PM, session session_01PfaSTikked61BkcsB5Rn69, round 13. This is not a REWORK — nothing is wrong with the delivery. One line in it lands on the maintainer's manual floor, so I have no authority to bless it.

The engineering: ACCEPT on the merits

criterion	reading
PR shape	#12768 · draft ✓ · base `main` ✓ · first line `Fixes #12555` ✓
scope	3 files, +198/−7 — the two declared gates plus one comment-only change in `datasource-admin-plugin.test.ts` (verified: `git diff` of that file contains no non-comment line)
changeset	`skip-changeset` correct
lint	⭐ `pnpm lint` run whole-repo (`VERDICT command-exit 0`, 1m42s) — no narrowing claimed, unlike the other two PRs this round

Both halves of my dispatch measurement were re-derived and confirmed, with a correction I got wrong: I said the two files carry the "byte-identical" alternative. Precisely, the defective first alternative is byte-identical (md5 03ed0813… both sides) but the full regexes are not — check-type-source-resolution's dynamic-import alternative admits : and < as leading delimiters so import('y').X is seen in a type annotation and inside a generic argument. Only the shared first alternative was changed, and those extra delimiters are now pinned so a future "sync the two gates" edit cannot quietly drop them. That is a better outcome than the shared fix I assumed.

⭐ My Zone-2 mechanism assumption was killed in the safe direction, by measurement. I flagged that I had not checked whether check-type-source-resolution has a consumer depending on the over-greedy behaviour, and said to split if so. The dev checked: extractTypeImports reads only the specifier captures and never match[1], so the shared fix can only ever add a specifier there, never remove one. Split correctly declined.

⭐ And it rejected the shape the card floated, on measurement. The card suggested a ;-excluding class. Measured partial: under ASI there is no terminator for a ;-class to stop on and the unbounded span returns. [^;'"] — the class #12320 landed in check-driver-conformance — closes it, because every intervening specifier is quoted. The four-row table (A/B/C plus B′, the no-semicolon case) is in the PR body, and rows B and C are pinned as a set against each other rather than against a hand-copied expectation, because order-dependence was the defect. That is the right way to pin this.

⭐ It found a second manifestation the card never described: the swallow also runs backwards, through a preceding export type EnvironmentDriverRegistry = any;, leaving a clause beginning with type that isTypeOnlyClause then discards — so a real runtime import vanished through the type-only filter. Independently corroborated by an artifact nobody edited for this: check-type-source-resolution's registry has carried that same pair all along, because it never applies the type-only filter. Two gates disagreeing about one package, explained.

Blast radius measured precisely: --list differs by one line repo-wide, 303 → 304 pairs, 61-of-72 package count unchanged.

⛔ Why it is not landing: the ledger hunk

-  '@objectstack/hono': ['@objectstack/types'],
+  '@objectstack/hono': ['@objectstack/plugin-hono-server', '@objectstack/types'],

KNOWN_UNALIASED_TEST_IMPORTS's own header — read on origin/main, not from the PR's quotation of it — says both:

MEASURED, not curated … the exact set of unaliased artifact imports

⛔ SHRINK-ONLY. Adding an entry, or widening one, is not how a red build gets fixed — add the alias to that package's vitest.config.* instead.

Those point opposite ways here, and the file does not disambiguate. Adding an entry to a shrink-only ledger is 「抬 ratchet 上限」, which sits on the maintainer's manual floor 恒交维护者,不论四棱是否同向 — and the floor's stated rationale is precisely this shape: an agent has a structural incentive to widen so CI goes green.

⚠️ To be explicit, because it matters: the dev's handling of this was exemplary and is not what is being questioned. It isolated the hunk under "⚠️ One judgment call for review", wrote the mechanism in place beside the change, filed the prescribed remediation as #12767 rather than riding it along, said "reversible in one line", and independently reached the same fork in its own open_questions before knowing this escalation existed. Declaring well is not the same as being entitled to decide — that gap is exactly what the floor exists to hold, so I am holding it.

Filed as #12770 with the four-axis analysis and four options (A land as-is · B ride the alias along · C′ land #12767 first, then this · ~~temporary exemption~~ withdrawn). Recommendation A, with the standing note that a recommendation is an input, never a clearance.

State

This card is pm:blocked, Blocked-by: #12770, in the same write. PR #12768 stays draft, ⛔ no auto-merge, not enqueued — the anti-consensus window stays open. The lane's queue keeps moving; ⛔ the seat does not idle on this.

⚠️ Serial-queue consequence: #12572 stays undispatchable — it edits scripts/check-type-source-resolution.mjs, which this PR holds until #12770 resolves.

Out-of-scope finding — verified

#12767 exists, unassigned, no labels (triage's field), and quotes the gate's prescribed anchored array-form alias with the reason it is separate: it points hono's suite at plugin-hono-server's source, so it needs that package's tests actually run. ⭐ It also carries ⛔ Do not resolve this by widening KNOWN_UNALIASED_TEST_IMPORTS — the dev wrote the guard against its own shipped choice into the follow-up card. That is the honest form of a flagged judgment call.

Generated by Claude Code

test(engine-doubles): add the findOne slice to check:engine-double-co…

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check-test-source-alias loses a bare side-effect `import 'x';` whenever any later `import … from …` follows it, so the clocked-window rule reports a file that already applied the fix it prescribes #12555

The defect

Minimal reproduction

Why it matters: the gate contradicts its own remedy

Blast radius

Suggested shape (not prescriptive)

Current state in the tree

ESCALATE — the work is sound; one hunk in it is the maintainer's call

The engineering: ACCEPT on the merits

⛔ Why it is not landing: the ledger hunk

State

Out-of-scope finding — verified

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check-test-source-alias loses a bare side-effect import 'x'; whenever any later import … from … follows it, so the clocked-window rule reports a file that already applied the fix it prescribes #12555

Description

The defect

Minimal reproduction

Why it matters: the gate contradicts its own remedy

Blast radius

Suggested shape (not prescriptive)

Current state in the tree

Activity

os-support-ai commented on Aug 26, 2026

os-zhuang commented on Aug 27, 2026

os-zhuang commented on Aug 27, 2026

os-zhuang commented on Aug 27, 2026

os-zhuang commented on Aug 27, 2026

ESCALATE — the work is sound; one hunk in it is the maintainer's call

The engineering: ACCEPT on the merits

⛔ Why it is not landing: the ledger hunk

State

Out-of-scope finding — verified

Metadata

Metadata

Assignees

Labels

Type

Projects

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check-test-source-alias loses a bare side-effect `import 'x';` whenever any later `import … from …` follows it, so the clocked-window rule reports a file that already applied the fix it prescribes #12555