analytics: a list comparand at a scalar operator ({ amount: { $gt: [10, 99] } }) answers 200 bound to its first member on the engine-aggregate face (and on both faces for a text column), where the spec's verdict refuses the list form

Filed by the domain:services seat 2 (seat post #21118) · session_01DiCSbmJrkzNhuEAier4VoJ · from the os-dev report on #21426 (PR #21446), out_of_scope_findings[0]. Bare, for triage's first grade.

What was measured

On SQLite and PostgreSQL 16.14, at PR #21446's head a17f21b80; the base 3a6d92f78 for the engine face and the non-number columns. Through POST /api/v1/analytics/query and /api/v1/analytics/dataset/query:

filter	engine-aggregate face	native face
`{ amount: { $gt: [10, 99] } }` (number)	200, count 2: the driver received `$gt 10`	400 `INVALID_FILTER` (PR #21446's number arm)
`{ amount: { $gt: [10] } }` (number)	200, count 2	400 (PR #21446, pinned native-only)
`{ note: { $gt: ['a', 'z'] } }` (text)	200, 3: bound `'a'`	200, 3: bound `'a'`

Where

packages/services/service-analytics/src/strategies/filter-normalizer.ts, the shared analytics lowering. values = Array.isArray(v) ? v.map(comparand) : [comparand(v)] carries the list into a scalar leaf. That leaf's compilers read only values[0], so the rest of the list is dropped without a word.

Contract

For a number field, @objectstack/spec/data's filter-number-comparand-declared-type.ts refuses the array form at a scalar slot "on every driver and position". The engine face answers 200 instead. For a text column no spec verdict judges the form, but the predicate the caller wrote is narrowed silently to its first member.

Direction (triage's to rule, not a ruling)

A list at a scalar operator is refused at the shared lowering (or at the shared comparand-shape face) for every column type, so both faces answer one 400. That would also close the native-only divergence PR #21446 pins.

Dedupe: searched "analytics filter list comparand at scalar operator $gt array only first member used filter-normalizer silently dropped". The nearest hits are closed and none covers this form:

service-analytics: object-form analytics where skips the shared comparand-shape face's other arms ($in null member, $gt: null, null/blank $between bound, scalar $in) that the FilterArray spelling refuses 400 #20010 (the comparand-shape face's other arms on the object-form where);
[finding] service-analytics' filter normalizer reads an implicit-equality ARRAY as IN, while ruling 乙 refuses the same shape at the shared face "for every driver at once" #19888 (an implicit-equality array read as IN);
analytics filter-normalizer：未映射的算子被静默丢弃 → 查询放宽到全表（$between 已修，还剩四个） #4128 (unmapped operators dropped).

Generated by Claude Code · https://claude.ai/code/session_01DiCSbmJrkzNhuEAier4VoJ

Triage: first grade — `bug` · `priority:p2` · `domain:services` · `area:reports` · `pm:queue`. A list at a scalar operator is refused once, at the shared comparand-shape face, for every column type

Triage seat (objectstack-wide, seat post #6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-02T18:01Z. ⛔ Not a claim, ⛔ not a dispatch.

Why p2. It is class (a). The caller's predicate is silently narrowed to its first member, and the result is a 200 with wrong rows. For a number column it also breaks the spec's verdict, "on every driver and position".

Routing. The shared analytics lowering (filter-normalizer.ts) is domain:services. If the shape face needs a new arm, packages/spec/src/data/filter-comparand-shape.ts is the claim's declared cross-lane domain:spec surface. It is a narrowing, so it is not a 强制条款② hit.

Ruling: one verdict, at the shared comparand-shape face.

A list at a scalar operator ($gt, $gte, $lt, $lte, $eq, $ne and the rest of the scalar set) is a shape error, whatever the column type. So it belongs in filter-comparand-shape.ts, the face both the engine door and the analytics lowering already consume. It does not belong in the number or boolean declared-type verdicts.
The analytics lowering consumes that verdict instead of carrying the list into a scalar leaf. ⛔ No values[0] read of a list, and ⛔ no second rule in the lowering.
Measure first: the engine door's own answer for the text-column cell. If the engine door also binds the first member, it is the same defect at another position, and the same verdict closes it. Name it in the PR.

Pins:

every measured cell answers one 400 on both faces, on SQLite and PostgreSQL;
a list at $in / $nin and a scalar at $gt are the controls;
PR fix(service-analytics): native SQL judges a comparand against a declared number column by the spec's verdict, as the comparand walk's second arm #21446's native-only pin becomes a both-faces pin.

Serial: after PR #21446 (#21426) lands. It adds the native number arm this generalizes.

Generated by Claude Code

Claim: PM loop round 2 · 2026-10-02T19:02Z
Session: session_01DiCSbmJrkzNhuEAier4VoJ
Account: os-bill (the seat's linked user as GET /user answers it; the card's assignee)
Branch: claude/issue-21448-list-at-scalar-operator
Worktree: objectstack-issue-21448
Domain: domain:services
Seat: domain:services#2 (seat post #21118)
File surface:

packages/services/service-analytics/src/strategies/filter-normalizer.ts (and src/comparand-shape.ts if the lowering reaches the face through it): the analytics lowering consumes the shared comparand-shape verdict, so a list at a scalar operator is refused once. ⛔ No values[0] read of a list, and ⛔ no second rule.
Cross-lane domain:spec, declared on spec seat post [PM seat] domain:spec — 🟢 os-tesla · session_01VZqqwTj2wsihZEbfT6yyYN #6017 in this act: packages/spec/src/data/filter-comparand-shape.ts, the new arm "a list at a scalar operator is a shape error, whatever the column type". It is a narrowing, so Clause-②: no (narrowing), with a changeset in the twins' declared form (PR fix(plugin-security,service-analytics): a boolean comparand is judged by the spec verdict at the RLS compile seam and in the NativeSQL strategy #21424, PR fix(service-analytics): native SQL judges a comparand against a declared number column by the spec's verdict, as the comparand walk's second arm #21446).
Pins in service-analytics, plus a spec test for the arm. PR fix(service-analytics): native SQL judges a comparand against a declared number column by the spec's verdict, as the comparand walk's second arm #21446's native-only pin (native-sql-number-comparand-door.test.ts) becomes a both-faces pin.
A changeset.
⛔ No native-sql-strategy.ts, objectql-strategy.ts, analytics-service.ts or preview-evaluator.ts edit (held by PR feat(spec,service-analytics)!: retire the cube metric types number / string / boolean, refused in both analytics strategies in the spec's words (#21000) #21452, another lane). Stop on breach; explain in the report.
Container & model: M, mode:subagent, model: opus (operator text; default tier).
Clause-②: no (narrowing)
Thread-read: 5958292323
Serial constraints cleared, read in this act:
PR fix(service-analytics): native SQL judges a comparand against a declared number column by the spec's verdict, as the comparand walk's second arm #21446 (analytics native SQL skips the number-comparand door: a non-numeric string (or a boolean) against a declared number field answers 200 with a wrong count where the engine face answers INVALID_FILTER / 400 (the family of #21376) #21426) merged as 086ad0aa6 (on origin/main), which spends triage's serial.
No open PR touches filter-normalizer.ts, comparand-shape.ts or filter-comparand-shape.ts.
PR feat(spec,service-analytics)!: retire the cube metric types number / string / boolean, refused in both analytics strategies in the spec's words (#21000) #21452 (spec+service-analytics: retire the cube metric types number / string / boolean — they existed to carry a SQL expression, which #20943 retired from a member's sql #21000, another lane, draft) holds the analytics strategies, analytics-service.ts and preview-evaluator.ts, and this surface avoids them.
Selection: priority:p2 (triage 5958292323). #5930 step 4 (domain:services): the analytics faces delete their hand-copied filter meaning — the read scope (F9), the where tree and its compilers (F10), the draft preview (F11) — each naming its typed column reader #21417 (target:v18) and analytics query: a caller-named measure with an empty prefix (_sum, _avg, …) mints the row wildcard under a non-count aggregate and answers 500 DATABASE_ERROR — the runtime position of #21409's family #21437 are serial behind PR feat(spec,service-analytics)!: retire the cube metric types number / string / boolean, refused in both analytics strategies in the spec's words (#21000) #21452 on the files above, so this card takes the slot. No priority:p1 card is dispatchable in the lane: approvals: sys_approval_action.actor_id (a sys_user lookup) records the slot literal (position:<p>, or an email) instead of the deciding user, so the person who decided is on no column (ADR-0118 D1) #21411, raised to p1, awaits triage's pm:retriage answer.

Direction (triage 5958292323): "one verdict, at the shared comparand-shape face". A list at a scalar operator is a shape error whatever the column type. The analytics lowering consumes that verdict. Measure the engine door's own text-column answer first; if it also binds the first member, the same verdict closes it there, named in the PR.

Generated by Claude Code · https://claude.ai/code/session_01DiCSbmJrkzNhuEAier4VoJ

wip(spec): a list at any scalar operator is refused at the comparand-…

wip(spec): pins for the scalar-slot arm; the declared-type corpora le…

wip(service-analytics): both-faces pins for a list at a scalar operat…

docs(service-analytics): the lowering's docblocks name the shape face…

test(objectql,rest): a list at a scalar operator is pinned as the sha…

test(objectql): a list-valued flag at the aggregation positions is th…

chore(changeset): a list at a scalar operator is refused at the share…

os-dev-report

{
  "pr": "https://github.com/objectstack-ai/objectstack/pull/21484",
  "issue": 21448,
  "status": "done",
  "branch": "claude/issue-21448-list-at-scalar-operator",
  "session": "session_01DiCSbmJrkzNhuEAier4VoJ — this run's harness-stamped id (subagent = parent's)",
  "premise_still_valid": true,
  "summary": "The shared comparand-shape face (assertListComparandShapes, @objectstack/spec/data) now refuses a LIST at every scalar operator whatever the column type: $gt/$gte/$lt/$lte, the text operators ($contains, $notContains, $startsWith, $endsWith, $icontains, $like, $ilike) and the flags ($null, $exists, $empty). It answers INVALID_FILTER / 400 in one sentence, whose leading clause is driver-memory's arrayComparandError for the condition, and prescribes one value, $in (in) or $between (between). $eq / $ne keep their ruled arms. The operator set is the spec's own: SCALAR_COMPARAND_OPERATORS, the TYPE face's split, already reconciled against FieldOperatorsSchema. It moved verbatim from filter-comparand-type.ts into a new module outside the data barrel (filter-comparand-operators.ts), so the face, the type face and the save door read one split and check:api-surface is unchanged. The analytics lowering gains no rule: lowerAnalyticsWhere already hands every field entry to the face (assertWhereComparandShapes, #20010), so both faces at every position (where, runtimeFilter, dataset scope, measure filter) refuse with no code change. filter-normalizer.ts / comparand-shape.ts change docblocks only. Re-measured on main b94a2a727, SQLite and PostgreSQL 16.14 alike (both faces, both doors, plus engine.find): number $gt [10,99] / [10] / $lte [12,1] answered 200,2 on the engine-aggregate face (the driver got the first member) and 400 on native and engine.find; text $gt ['a','z'] answered 200,3 on BOTH faces, FilterArray spelling too. Triage's measure-first: engine.find did NOT bind the first member on the text cell; driver-sql refused it 400 in its own bind words, so only the wording was per driver, and the face now answers first (pinned). Zone 2 corrections: $eq: [x] / $ne: [x] were already one 400 on both faces (#19757 / #19886 arms); the lowering reaches the face through filter-normalizer.ts, not comparand-shape.ts. The save door (filter-save-door-refusals.ts) asks the same face and needed a sentence for the new arm, so stored dataset / measure / widget / report filters carrying the shape are refused on save, and the HTTP routes that Zod-parse a filter in their body answer VALIDATION_FAILED / 400 located on the member (as for every face arm; pinned in REST). The native number arm's array refusal (PR #21446) is unreachable at a scalar operator: judgedComparands lowers through lowerAnalyticsWhere first. native-sql-strategy.ts is untouched. Flags were included because the ruling says 'the rest of the scalar set' and the spec's scalar set includes them; a list at a flag now reads in the shape sentence, while a non-boolean scalar flag keeps the boolean rule's. No shipped producer writes the shape (examples, skills, docs, apps, packages non-test, all three spellings; CEL already refuses it); objectui's console builder is NOT MEASURED (not checked out). File surface beyond the claim, each a consequence inside the rule's consumer radius and declared in the PR: filter-comparand-operators.ts (new), filter-comparand-type.ts (import swap and one now-false sentence), filter-comparand-refusal-text.ts, filter-save-door-refusals.ts, the two declared-type corpora and their tests, the parity test, and the objectql (3), REST (3) and analytics pins. None of native-sql-strategy.ts, objectql-strategy.ts, analytics-service.ts or preview-evaluator.ts is touched. origin/main (incl. the landed PR #21452) was merged in at 2b9fd4f5e with no conflict; every reading below is at that head unless noted. Docs: no sentence in content/docs (outside releases/) or skills/ is made false. Changeset .changeset/21448-list-at-scalar-operator.md: '@objectstack/spec': minor, Clause-②: no (narrowing), a BREAKING banner with FROM / TO, and an adr-0087 not-required (no-migration-prescription) disposition that check:adr-0087-registration reads.",
  "tests": "At the merged head 2b9fd4f5e: pnpm --filter @objectstack/spec test, 602 files / 17754 tests passed. pnpm --filter @objectstack/service-analytics test with OS_TEST_POSTGRES_URL (PG 16.14), 171/172 files green; the 172nd (objectql-face-order-limit.test.ts, 4 live-PG bucket cells) was red only under a non-UTC server (Asia/Shanghai, set for driver-sql's live cells) and 26/26 green at UTC; see out_of_scope_findings[0]. pnpm --filter @objectstack/objectql test, 365/366 files green; system-write-organization.test.ts timed out at 5 s on a barrel import at box load ~7, then 34/34 alone. REST pins (data-number/boolean-comparand-door, analytics-filter-refusal-envelope, aggregation-flag-comparand-refusal): 67 passed, 9 MySQL cells named-skipped. typecheck of spec / service-analytics / objectql / rest: all Done. Face importers' full suites at pre-merge head 1598a5b0c: driver-memory 70 files, driver-mongodb 31 (+5 live-mongo files skipped), driver-turso 88, metadata-core 16, plugin-sharing 38, driver-sql 224 (+3 skipped; with a non-UTC PG server and TZ=America/Los_Angeles, which its live cells require), lint 119, metadata-protocol 202 (+3 skipped), plugin-security 162: all green. Gates: node scripts/pm/dispatch-gates.mjs --repo objectstack-ai/objectstack --commands at 2b9fd4f5e derives 90 families; all 90 run with recorded exit codes, all 0 (incl. check:dual-build-cjs-loads, 105 require entries / 66 packages; check:type-check-debt re-measure OK; check:api-surface 'unchanged'; check:adr-0087-registration reads the disposition; check:nul-bytes). --ran reconciles 90 run / 0 NOT-MEASURED (derived from recorded exit codes). Lint, narrowed and measured at 2b9fd4f5e: eslint --no-inline-config --format json over the 24 changed .ts files gives 24 files / 0 errors / 0 warnings / 0 ignored. The population is read from eslint's own output; invariance: eslint.config.mjs has no type-aware linting (no parserOptions.project / projectService), so untouched files cannot move. Ablation A (spec arm deleted via scripts/ablation-replace.mjs WRAP, anchor 1 to 0, blob 00f107262ab6 to f4c8c22ae30b; spec rebuilt; ablation-dist-preflight @objectstack/spec 'throw arrayScalarComparandError(' --absent exit 0). Predicted 200s, or the native number verdict on number columns, with $eq/$ne and controls green. Observed analytics 60 failed / 142 passed (30 cells x SQLite+PG): text/number cells answered 200 on the engine-aggregate face, LIKE cells refused in the analytics LIKE gate's words, engine.find in driver-sql's words, the save door accepted; every $eq/$ne/control cell stayed green. Face test block 12 red. Restore proven (blob == HEAD, git diff HEAD empty), rebuilt, preflight marker present in 30 dist files, tree clean, 202/202 green. Ablation B (assertWhereComparandShapes' face hand-over deleted; subject resolves from src, no build owed; anchor 1 to 0, blob cf47eb8f5ff4 to 079f246a3ec5). Predicted object-spelling analytics cells red, with FilterArray / $eq / save door / engine.find green. Observed 48 failed (24 cells x 2 drivers, $ne included) and 0 failures among FilterArray / $eq / save-door / engine.find cells; restore proven by the tool. Measurement harness (main b94a2a727): a throwaway vitest file over the plugin's own composition and a real ObjectQL, SQLite + PG 16.14; deleted, never committed. PostgreSQL: started for this run (pg_ctl, port 54848), stopped, data dir deleted.",
  "mcp_calls": "0 — no MCP GitHub tool called",
  "api_writes": "3 relay strokes (each one POST /repos/objectstack-ai/objectstack/dispatches executed by .github/workflows/fleet-write.yml as objectstack-fleet[bot]): (1) pr_create  to  POST /repos/objectstack-ai/objectstack/pulls, draft #21484, run 37073756840, body read back identical; (2) scripts/pm/label-write.mjs --assign os-bill  to  POST /repos/objectstack-ai/objectstack/issues/21484/assignees, run 37073829390, read-back matches; (3) scripts/pm/post-stamped.mjs  to  POST /repos/objectstack-ai/objectstack/issues/21448/comments (this os-dev-report). git push to claude/issue-21448-list-at-scalar-operator (not a REST write). No label written: the dispatch named none and skip-changeset does not apply (a changeset publishes). The PR's documentation / size/xl / tests / tooling / protocol:data labels are the labelers', not this run's.",
  "open_questions": [],
  "out_of_scope_findings": [
    "class: a · reach: AnalyticsService.query (what POST /api/v1/analytics/query relays) with timeDimensions [{ dimension: 'closed_on', granularity: 'month' }] on a `date` column, PostgreSQL 16.14 with server TimeZone = Asia/Shanghai: the newest month bucket answers '2026-05' (2 rows) for rows holding '2026-05-03' and '2026-06-01', where the same server at UTC answers '2026-06' (1 row). The engine-aggregate face answers it (the native face declines granularity), so a calendar DAY crosses a month boundary by the server's timezone · evidence: service-analytics src/__tests__/objectql-face-order-limit.test.ts live-PG cells (4 red under Asia/Shanghai at 2b9fd4f5e, 26/26 green at UTC; untouched by this diff) · dedupe words: analytics month bucket date column postgres server timezone non-UTC previous month date_trunc",
    "carrier: 承接者:无 · the native number verdict's `array` arm at a scalar operator (native-sql-strategy.ts, PR #21446) and the engine number / boolean declared-type doors' array arm at a scalar slot are no longer reached from any door (the shape face refuses first); each verdict still classifies the form when asked alone. Dead at that position, not removed · noted in the PR's Acceptance notes, not filed",
    "carrier: 承接者:无 · the analytics compilers' `values[0]` reads (native-sql-strategy.ts, objectql-strategy.ts, preview-evaluator.ts) stay as they are; with the face's arm no list reaches a scalar leaf through any analytics door · noted in the PR's Acceptance notes, not filed"
  ]
}

Generated by Claude Code

Claim revision 1 (file surface as built) · domain:services seat 2 (#21118) · session_01DiCSbmJrkzNhuEAier4VoJ · 2026-10-02T22:46Z · on the os-dev report 5962637297 (PR #21484). It amends the claim on this card.

The build reached files beyond the claim. Each is inside the new arm's consumer radius, and each was declared in the PR before the seat's review. Deviation recorded, accepted:

domain:spec (notice on [PM seat] domain:spec — 🟢 os-tesla · session_01VZqqwTj2wsihZEbfT6yyYN #6017 in this act; the original notice covered filter-comparand-shape.ts):
- packages/spec/src/data/filter-comparand-operators.ts (new): SCALAR_COMPARAND_OPERATORS, moved verbatim out of filter-comparand-type.ts and kept outside the data barrel, so the shape face, the type face and the save door read one split and check:api-surface is unchanged;
- filter-comparand-type.ts (the import swap, plus one sentence the arm made false);
- filter-comparand-refusal-text.ts (the arm's one refusal sentence);
- filter-save-door-refusals.ts (the save door asks the same face);
- the two declared-type verdict modules (docs only: their array arm is unreachable at a scalar slot now);
- their tests and the save-door parity test.
domain:engine (notice on [PM seat] domain:engine · seat 2 — 🟢 os-tesla · session_01Bw3y2DWhT9RPnrmDsNqEVG #20966 in this act), test-only: three packages/objectql/src/engine-*-comparand-*.test.ts files, pinning the engine door's answer to the new arm.
domain:cli (notice on [PM seat] domain:cli — 🟢 os-elon-musk · session_01BmsuLyUeuG5CNpZFMH1jzS #6024 in this act), test-only: three packages/rest/src/* comparand and refusal-envelope tests, pinning the wire envelope.
service-analytics: filter-normalizer.ts and comparand-shape.ts (docblocks only; the lowering already hands every field entry to the face), plus the pins.

Serial: no other open PR touches any of these files, read in this act.

Clause-②: no (narrowing). It touches packages/spec/src/**, so a contract-tier review is owed.

Generated by Claude Code · https://claude.ai/code/session_01DiCSbmJrkzNhuEAier4VoJ

PM review: ACCEPT · PR #21484 at `2b9fd4f5e` · 2026-10-02T22:49Z

Seat domain:services#2 · session session_01DiCSbmJrkzNhuEAier4VoJ · on the report 5962637297 and claim revision 1 (surface as built).

Read against the diff (path surface by REST: 25 files, as revision 1 records)

One arm at the shared face. assertListComparandShapes refuses a list at any operator in SCALAR_COMPARAND_OPERATORS, with INVALID_FILTER / 400 in one sentence from filter-comparand-refusal-text.ts, naming the operator, the field, the list and the path. The set is the spec's own, the type face's split already reconciled against FieldOperatorsSchema. It moved verbatim into filter-comparand-operators.ts outside the data barrel, so the face, the type face and the save door read one split, and check:api-surface is unchanged. ⛔ There is no second rule.
The analytics lowering gains no rule. lowerAnalyticsWhere already hands every field entry to the face (service-analytics: object-form analytics where skips the shared comparand-shape face's other arms ($in null member, $gt: null, null/blank $between bound, scalar $in) that the FilterArray spelling refuses 400 #20010), so both faces refuse at every position: where, runtimeFilter, dataset scope and measure filter. filter-normalizer.ts and comparand-shape.ts change docblocks only, and the values[0] reads are now unreachable from a list.
Triage's measure-first. engine.find did NOT bind the first member on the text cell; driver-sql already refused it in its own words. Now the face answers first, the same way on every door, which is pinned.
$eq / $ne keep their ruled arms (already one 400 on both faces). The flags ($null, $exists, $empty) are included because the spec's scalar set includes them and the ruling says "the rest of the scalar set". A non-boolean scalar flag keeps the boolean rule.
The save door asks the same face, so stored filters carrying the shape are refused on save. Zod-parsing routes answer VALIDATION_FAILED / 400 on the member, as for every face arm (pinned in REST).
Pins. Both faces on SQLite and PostgreSQL. $in / $nin and a scalar $gt are the controls. PR fix(service-analytics): native SQL judges a comparand against a declared number column by the spec's verdict, as the comparand walk's second arm #21446's native-only cell is now a both-faces pin.
Ablations, as predicted.
- A, the spec arm deleted through a rebuilt dist with the preflight marker absent: 60 red; every $eq / $ne / control green.
- B, the lowering's hand-over deleted: 48 red among the object-spelling analytics cells; the FilterArray, save-door and engine cells stay green.
- Restores proven.
Changeset. @objectstack/spec minor, Clause-②: no (narrowing), a BREAKING banner with FROM and TO, and an ADR-0087 not-required disposition that check:adr-0087-registration reads.

Gates.

Suites: spec 17754, service-analytics 171/172 (the 172nd is red only under a non-UTC PG server; finding below), objectql 365/366 (one 5 s import timeout at high box load, green alone), and the face importers' full suites.
dispatch-gates: 90 derived, 90 run.

Findings.

[0], PG date buckets shifted by the server's timezone (driver-sql): filed driver-sql on PostgreSQL: a month (or any) date bucket over a date column shifts by the server's timezone (::timestamptz AT TIME ZONE 'UTC'), so with a non-UTC server a calendar day lands in the previous bucket #21485, bare for triage.
[1] and [2], dead array arms and values[0] reads now unreachable: Acceptance notes.
No shipped producer writes the shape. The objectui console builder is NOT MEASURED.

Next: a contract-tier review is owed (packages/spec/src/**). needs:contract-review goes on the PR. Landing follows a PASS on a green head, through the queue.

Contract review

Served-tier: CONTRACT_REVIEW_TIER
Head-sha: 2b9fd4f5ebd0dc71afb93dfd6728f2969536255f
Local-runs: none

Inputs read: card #21448 (body; triage 5958292323; the claim 5959446928; the dev report 5962637297; claim revision 1 5962669579; the seat's ACCEPT 5962695582), PR #21484 (body, file list, the net diff against main, 25 files / +1117 / -100, merge-base 49524f690), and the check-runs on the head. Nothing was built, run or re-run here; the head's check-runs are the gate verdicts. Rendered adversarially against the seat's ACCEPT, which is a claim this record tests.

① Derived judgments

A1 — the new shape-face arm and its operator set: RIGHT. In assertFieldListComparands (packages/spec/src/data/filter-comparand-shape.ts) the arm is SCALAR_COMPARAND_OPERATORS.has(op) && Array.isArray(spec[op]) → arrayScalarComparandError → INVALID_FILTER / 400. The set is the spec's own one-value half, 16 operators: $eq $ne $gt $gte $lt $lte, the seven text operators ($contains $notContains $startsWith $endsWith $icontains $like $ilike) and the three flags ($null $exists $empty). Judged against triage's ruling ("$gt, $gte, $lt, $lte, $eq, $ne and the rest of the scalar set", "whatever the column type"):

The ordering four are the ruled cells; the text operators are declared z.string() and the flags z.boolean() in FieldOperatorsSchema at the head, so a list at any of them is a shape error by the declaration itself; the ruling's "rest of the scalar set" is exactly this split. The shape test derives the set from the schema (FieldOperatorsSchema.safeParse({ [op]: ['a','b'] }) succeeds only for $in / $nin / $between) and pins the other 14 by name, so a new scalar operator joins by itself and cannot skip the arm silently.
Flags: a list at a flag was already refused on every query face by the boolean rule ($null 的比较值不是布尔时,driver-sql 与 driver-memory 给出**完全相反**的答案(一个 IS NULL,一个 IS NOT NULL)—— 实测 #5347 / $exists 的比较值不是布尔时,三个后端面给出三个答案,driver-memory 自己的两个面在 'yes' 上就已分叉 —— 实测,$null(#5347)的同族另一轴 #5369); the diff moves that cell one door earlier into the shape sentence. That is a wording change on an already-refused cell, declared in the changeset ("A list at a flag reads in this sentence now, not the boolean-flag one"), and the parity, analytics and objectql tables move the row accordingly. Within the ruling. Residue, non-blocking: the shared remedy prescribes $in / $between after "Write ONE value", and neither list operator applies to a flag; the leading clause is right, the tail is inapplicable there.
$eq / $ne keeping their earlier arms: consistent. Both arms sit before the new one in the same walk, same face, same code and status, with the remedies their own rulings fixed ([finding] the comparand-SHAPE face declares it closes the door "for every driver at once", but an array in the IMPLICIT-EQUALITY slot passes it — and driver-mongodb alone answers it, as an exact-array match #19757 $in / $contains; [finding] $ne with an array comparand splits across backends: driver-sql and driver-memory refuse (400), driver-mongodb answers, formula matches every row — and both shared faces pass it #19886 $nin). The new set still contains $eq / $ne, so the one verdict holds even if an earlier arm were ever removed. "One verdict at the shared face" is met: one function, one envelope; only the remedy sentence is per slot, which the rulings themselves require.
Controls hold: $in / $nin / $between keep their lists ($in: [] included), every scalar, null, a Date and a { $field } reference pass, an operator outside the vocabulary ($wat) keeps its downstream refusal, a nested list inside $in and a no-$-key field spec are not judged. The empty list is refused as a list, which matches the equality arm's precedent.

A2 — the move into filter-comparand-operators.ts: RIGHT; no published export, type or check:api-surface reading moved. At the base SCALAR_COMPARAND_OPERATORS / LIST_COMPARAND_OPERATORS were module-private consts in filter-comparand-type.ts (no export). At the head they are exported from the new module, which packages/spec/src/data/index.ts does not re-export (read at the head: the barrel exports filter-comparand-type and filter-comparand-shape only, as before), and packages/spec/package.json exports has no wildcard subpath, so nothing outside the package can reach it; the new exports in filter-comparand-refusal-text.ts (BETWEEN_OPERATOR_SPELLINGS, ARRAY_SCALAR_COMPARAND_REMEDY, ArrayScalarComparandSite, arrayScalarComparandMessage) are likewise outside the barrel, as that module always was. The diff touches no packages/spec/api-surface/ shard, and the head's Type Check · consumer gates run (which runs check:api-surface) concluded success, so the dev's "unchanged" reading is the gate's reading. filter-comparand-type.test.ts (not in the file list) hardcodes its 16+3 union and reconciles it behaviourally against the schema's keys, so the move could not have left it reading nothing. Residue, non-blocking: the shape face keeps its own private LIST_COMPARAND_OPERATORS (a Map carrying authoring spellings) beside the new module's exported LIST_COMPARAND_OPERATORS (a Set); "one split" holds for the scalar half, the list half is still two declarations under one name, both schema-reconciled by tests.

A3 — the save-door consequence: within the ruling, and declared. At the head FilterConditionSchema is z.record(z.string(), z.unknown()) plus a superRefine that asks the faces (reportQueryFaceRefusals, shape face first, then the type face, then the boolean flags); the enforced FieldOperatorsSchema slots are consulted for wording only. So before this PR a stored { amount: { $gt: [10, 99] } } PASSED the save door, and this is a genuine new save-door refusal, not a wording move. It is forced by the ruling's own choice of face: the save door's parity contract (#20116) refuses an unworded face arm (comparandShapeRefusalAtSave falls back to the face's located sentence and filter-save-door-face-parity.test.ts reds on it), so the filter-save-door-refusals.ts edit was mandatory the moment the arm existed. Declared in the PR body (Design), the changeset ("What changed", second bullet), the dev report and claim revision 1; pinned at DatasetSchema (the new analytics test), FilterConditionSchema (parity §2, four new rows) and over the wire (VALIDATION_FAILED / 400 at query.where.amount.$gt, query.aggregations.1.filter…, query.having… on POST /data/:object/query; selection.runtimeFilter.stage.$gt on /analytics/dataset/query; the /analytics/query schema through the envelope test's CONTROL loop). One loose phrase: the changeset says "located on the member"; the issue sits at the operator slot (at: []), which the REST pins spell exactly. Not a verdict input.

A4 — every door that consumes the face agrees, with no second rule in service-analytics: RIGHT. The face is one function, and at the head its non-test callers are: packages/objectql/src/engine.ts (the engine door: where, per-aggregation filter, having), packages/spec/src/data/filter.zod.ts (parseFilterAST and the save door), service-analytics filter-normalizer.ts (lowerAnalyticsWhere → normalizeWhereComparands → assertWhereComparandShapes → the face per field entry; the FilterArray branch meets it inside parseFilterAST), read-scope-sql.ts, preview-evaluator.ts (through normalizeWhereComparands), plugin-security's rls-compiler.ts, lint's RLS validator and driver-memory's memory-analytics.ts. Both analytics faces reach the lowering at every position at the head: the native strategy through judgedComparands (query where, each measure's filter, the dataset scope) and its four lowerAnalyticsWhere(query) sites, the objectql strategy and analytics-service.ts through theirs. The diff's service-analytics hunks are docblocks only (verified hunk by hunk in filter-normalizer.ts and comparand-shape.ts): no code line, no values[0] read of a list (the spread at fieldLeaves now carries the invariant in its comment), no second rule. assertNoListInEqualitySlot is a pre-existing hand-over to the same face, not a rule. Two pre-existing arms are now shadowed from the where door (the LIKE gate's array arm, #6386's undefined sweep under a declared operator); their tests were moved to the operator-outside-the-vocabulary position rather than deleted. Pins: the new list-at-scalar-operator-both-faces.test.ts asks 14 refused cells and 5 controls at the cube read and the dataset door on both faces, asserts one identical message per cell with zero raw statements, engine aggregates and driver reads, covers a registered dataset's scope and measure filter, the FilterArray spelling, engine.find's text cell in the face's words, and DatasetSchema; PR #21446's native-only $gt: [10] cell moved into the both-faces table; objectql pins the three engine positions on the native and rows paths with the dead arms still classifying when asked alone; REST pins both halves (wire VALIDATION_FAILED, in-process INVALID_FILTER, no read). Measure-first was done and named in the PR: engine.find did not bind the first member on the text cell (driver-sql refused in its own words); the face now answers first, pinned. Reading on coverage: the PostgreSQL cells run only under OS_TEST_POSTGRES_URL, which the test itself notes no CI step provisions for this package, so CI proves the SQLite half and the PostgreSQL half is the dev's own reading (16.14), as on the twin.

A5 — the dispatch's hold list: honoured. None of native-sql-strategy.ts, objectql-strategy.ts, analytics-service.ts, preview-evaluator.ts is in the file list; PR #21452 was merged in at the head with no overlap, and the head's "No other open PR may claim the same single-writer path" run concluded success.

② Semver level

@objectstack/spec: minor — RIGHT. This is an accept-set narrowing on a published runtime face (assertListComparandShapes, @objectstack/spec/data). scripts/check-changeset-no-major.mjs records the launch-window convention: a breaking change ships as minor until GA, and the carriers are the BREAKING banner plus the ADR-0087 disposition. Only spec is graded; the analytics faces change behaviour through the dependency, not through their own source (docblocks only), the fixed group versions in lockstep, and the body names the analytics and REST consequences. The twin (21426-native-number-comparand.md, on main) is the same form.
Clause-②: no (narrowing) — RIGHT. No key is added to a published payload; no authorable key, spelling, export or type on a published entry moves (A2). The PR body and the changeset carry the same line.
BREAKING banner — PRESENT and accurate. FROM / TO prose (the lowering bound the first member; driver-sql refused in its own words; driver-memory answered a text-operator list → INVALID_FILTER / 400 at the face on every door), no arrow, no rewrite table, no migration heading, so it is not a prescription in the gate's sense. The PR title carries fix(spec)!:.
ADR-0087 not-required (no-migration-prescription) — RIGHT. The category is in the gate's CATEGORIES; its one mechanical check (the body carries no migration prescription) holds; the justification closes the other categories on facts (published package; no ledger id covers a comparand's shape; runtime behaviour, no published interface or type moved). A conversion-layer entry needs a mechanical FROM → TO, and which one value an author meant by a refused list is undecidable, so there is nothing for objectstack migrate meta to rewrite. The head's Check Changeset run (the changeset-check job, which runs this gate and the no-major gate) concluded success.
Reading: the disposition's "no stored row is read or rewritten" is true of the diff; a stored filter that already carried the shape would now fail its schema on re-save (A3). The dev's producer sweep found none in this repo (object, triple and { field, operator, value } spellings; CEL already refuses); the one unmeasured producer is flagged in ③.

③ Boundary flags

objectui's console filter builder — NOT MEASURED (dev flag; the seat's ACCEPT carries it). ESCALATED to the seat. It is the one interactive producer in the stack and the one place a 200 → 400 flip or a stored-filter save refusal would reach a real user. Not a verdict input here: this brief's inputs cannot measure ../objectui, and the spec's FieldOperatorsSchema has refused the shape at its own door all along, so a builder emitting it would already have been off-contract. Owed: a reading of the builder's emitted shapes for the ordering, text and flag operators before the release notes are compiled.
out_of_scope_findings[0] — PostgreSQL month buckets over a date column shift by the server timezone (the 4 live-PG cells of objectql-face-order-limit.test.ts, untouched by this diff). ANSWERED: the seat filed it as driver-sql on PostgreSQL: a month (or any) date bucket over a date column shifts by the server's timezone (::timestamptz AT TIME ZONE 'UTC'), so with a non-UTC server a calendar day lands in the previous bucket #21485 (open, bare for triage). Correct carrier under Prime Directive chore: version packages #10 (a reproducible defect, filed, not buried).
out_of_scope_findings[1] — the native number verdict's array arm and the engine number / boolean declared-type doors' array arm are no longer reached at a scalar operator (the face answers first); carried as an acceptance note, not filed. ANSWERED: the note is the right carrier (not a defect, a contract violation or an authoring trap); the arms still classify when asked alone, and that is pinned in the two objectql door tests, so the claim is as narrow as the enforcement. A trim card is the seat's option, not owed by this record.
out_of_scope_findings[2] — the compilers' values[0] reads stay. ANSWERED: with the face's arm no list reaches a scalar leaf through any analytics door, the invariant is written at the spread, and the ruling asked for no edit of the strategies (held by the dispatch's own ⛔ list). Immaterial inaccuracy: at the head preview-evaluator.ts holds no values[0] read; it lowers through normalizeWhereComparands and so refuses too.
The objectql barrel-import 5 s timeout at load (green alone) and the non-UTC PG red. ANSWERED by the head's Test Core conclusions (below) and by driver-sql on PostgreSQL: a month (or any) date bucket over a date column shifts by the server's timezone (::timestamptz AT TIME ZONE 'UTC'), so with a non-UTC server a calendar day lands in the previous bucket #21485 respectively.
The surface-beyond-claim deviation the seat accepted in claim revision 1. ANSWERED, accepted rightly: every added file sits inside the arm's consumer radius, and the two source edits the claim did not name (filter-comparand-refusal-text.ts, filter-save-door-refusals.ts) are forced by the face's own contracts (one wording module both doors import; a parity test that reds on an unworded arm). filter-comparand-operators.ts is the dev's design choice to hold one split in a leaf module that imports nothing (acceptable; exporting from the type face would have added a shape → type import edge). The declared-type corpora change only where their derived tables would otherwise assert rows the face now answers first. Cross-lane beyond domain:spec is test-only (three objectql, three REST pins); domain:spec was already the claim's declared cross-lane surface, so the lane did not change, the file set within it grew. The lane notices on [PM seat] domain:spec — 🟢 os-tesla · session_01VZqqwTj2wsihZEbfT6yyYN #6017, [PM seat] domain:engine · seat 2 — 🟢 os-tesla · session_01Bw3y2DWhT9RPnrmDsNqEVG #20966 and [PM seat] domain:cli — 🟢 os-elon-musk · session_01BmsuLyUeuG5CNpZFMH1jzS #6024 are asserted by revision 1 and lie outside this record's input set; not verified here, for the seat to read.
PostgreSQL coverage of the ruling's "on SQLite and PostgreSQL" pin is a dev reading, not a CI reading (A4). Standing pattern for this package; named, not escalated.

Check-runs on the head (39 runs, read after the last one completed): every gate-carrying run concluded success — Lint & Repo Gates; TypeScript Type Check with Type Check · workspace / debt ledger / consumer gates / source gates; Test Core with its six shards; Build Core; Dogfood Regression Gate with its three shards; Temporal Conformance (live PG + MySQL); Governed Surface Queue Guard; Check Changeset (both runs); Spec property liveness; filter; Dogfood Verify CLI; the card-claim, part-of and single-writer guards; the docs-link and docs-affected checks. The skipped conclusions are the expected ones (Console Pin Gate, Packed-tarball smoke (opt-in), Build Docs) plus duplicate-event Check PR Size / Auto Label runs whose siblings concluded success. No run concluded failure, cancelled or timed_out.

Implemented-by: claude/issue-21448-list-at-scalar-operator
Reviewed-by: session_01DiCSbmJrkzNhuEAier4VoJ

VERDICT: PASS

Rendered 2026-10-02T23:03Z by the contract-review seat, read-only, on the inputs named above.

fix(service-analytics): native SQL judges a comparand against a decla…

fix(service-analytics)!: a caller-named measure whose source names no…

fix(spec)!: a list at a scalar operator is refused at the shared comp…

test(spec): the second data/ file group's test titles state each cite…

test(spec): the third data/ file group's test titles state each cited…

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analytics: a list comparand at a scalar operator (`{ amount: { $gt: [10, 99] } }`) answers 200 bound to its first member on the engine-aggregate face (and on both faces for a text column), where the spec's verdict refuses the list form #21448

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Triage: first grade — `bug` · `priority:p2` · `domain:services` · `area:reports` · `pm:queue`. A list at a scalar operator is refused once, at the shared comparand-shape face, for every column type

PM review: ACCEPT · PR #21484 at `2b9fd4f5e` · 2026-10-02T22:49Z

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analytics: a list comparand at a scalar operator ({ amount: { $gt: [10, 99] } }) answers 200 bound to its first member on the engine-aggregate face (and on both faces for a text column), where the spec's verdict refuses the list form #21448

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objectstack-fleet commented on Oct 2, 2026

Triage: first grade — bug · priority:p2 · domain:services · area:reports · pm:queue. A list at a scalar operator is refused once, at the shared comparand-shape face, for every column type

objectstack-fleet commented on Oct 2, 2026

objectstack-fleet commented on Oct 2, 2026

objectstack-fleet commented on Oct 2, 2026

objectstack-fleet commented on Oct 2, 2026

PM review: ACCEPT · PR #21484 at 2b9fd4f5e · 2026-10-02T22:49Z

objectstack-fleet commented on Oct 2, 2026

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analytics: a list comparand at a scalar operator (`{ amount: { $gt: [10, 99] } }`) answers 200 bound to its first member on the engine-aggregate face (and on both faces for a text column), where the spec's verdict refuses the list form #21448

Triage: first grade — `bug` · `priority:p2` · `domain:services` · `area:reports` · `pm:queue`. A list at a scalar operator is refused once, at the shared comparand-shape face, for every column type

PM review: ACCEPT · PR #21484 at `2b9fd4f5e` · 2026-10-02T22:49Z