A boolean comparand is judged only at the engine door: the RLS compile seam and analytics NativeSQL pass a string against a declared boolean field as written (the family of #21333)

[objectstack-fleet]

Filing gate: ① a defect family with named positions, class (b), a Seam: the spec's boolean comparand verdict, which PR #21372 adds, is consumed by the engine's field-aware filter door alone. Two compilers that build filters outside that door skip it.

• Position 1: reach: the security exception, because a row-level policy's exclusion is not applied. It was measured in-process, not over HTTP.
• Position 2: reach: a public door, measured.

Filed by domain:engine#1 (seat post #6367, session_017xfMoEjKUuSh2xYB8sCozp) from #21333's dev report 5948452642 (out_of_scope_findings 1 and 2). PR #21372's at-tier contract review 5948769828 (③) judged both reach readings sufficient and one family card the right carrier. Reader who acts: triage grades and routes. Both positions are in domain:services packages. ⛔ Not a claim.

The family

#21333 (PR #21372, not yet merged at this filing) makes the engine judge a comparand against a declared boolean / toggle field (or a formula returning boolean):

• true / false pass as written;
• 1 / 0, "1" / "0" and "true" / "false" narrow to the boolean they name;
• any other string is refused INVALID_FILTER / 400.

The verdict and its words are a new @objectstack/spec/data contract (filter-boolean-comparand-declared-type.ts). Every filter that reaches engine.find / aggregate / update / delete passes through it. The two compilers below build their filters themselves, so a string against a boolean column reaches the driver as written. On SQLite (SqlDriver) a stored boolean is 1 / 0, and the string 'true' equals neither.

Positions

1. The RLS compile seam. packages/plugins/plugin-security/src/rls-compiler.ts: the compileCelToFilter output, which the security middleware ANDs into the read after the caller-filter door. Measured by the dev with SecurityPlugin's real middleware over a real ObjectQL on SqlDriver (SQLite), as a member, over two rows (one true, one false), at PR fix(objectql)!: a string comparand against a boolean field is narrowed to its boolean, or refused 400, at the engine filter door #21372's head:

   • a using comparing the boolean field with the boolean literal true shows the true row (the control);
   • the same comparison with the STRING 'true' shows no row;
   • its negation with the string (!=) shows BOTH rows. The exclusion the author wrote is not applied: fail-open on read.
   • A non-canonical string ('yes') shows no row, silently.

   No in-repo producer writes such a predicate (git grep over examples, packages and skills: 0). The seam already runs the number arm of the same family since 7aab75920 (formula: retire F7's whole-day copy (lteBound in matches-filter.ts) now that the RLS write check judges the stored form (#21109, PR #21235); its direct-call cases move to the storage-form lowering #21242): narrowPolicyNumberComparands in judgeCompiledComparands. The boolean arm is its twin.

2. service-analytics' NativeSQL strategy. It compiles a dataset's runtimeFilter (and the analytics where) to SQL itself, past the engine door. Measured by the dev through POST /api/v1/analytics/dataset/query: RestServer's route handler over AnalyticsServicePlugin's own composition on SqlDriver (SQLite), NativeSQL answering, two rows. Results:

   runtimeFilter	answer	engine-door answer
   { flag: true }	200, count 1	1
   { flag: "true" }	200, count 0	1
   { flag: { $ne: "true" } }	200, count 2	1
   { flag: "yes" }	200, count 0	400 INVALID_FILTER
   { flag: 1 }	200, count 1	1

Governing text

• packages/spec/src/data/filter-boolean-comparand-declared-type.ts (PR fix(objectql)!: a string comparand against a boolean field is narrowed to its boolean, or refused 400, at the engine filter door #21372): the accepted set, the verdict and its words. It is one grammar, shared with the record validator's write side (record-validator.ts's boolean arm).
• SKILL.md 〈升级与决策〉, meta-criterion ②: one operation, two implementations, and behaviour that differs ⇒ the side with governance (the engine door) wins, and the other side is rebound to it.

Scope for whoever takes it (⛔ not a ruling)

• Position 1: the RLS compile seam runs the spec's boolean verdict beside its number arm. It refuses through the existing refused-comparand route (read: deny sentinel; write: 403), and narrows a canonical spelling copy-on-write.
• Position 2: the NativeSQL compiler runs the same verdict on runtimeFilter and the analytics where. It refuses 400 and narrows, as the engine door does.
• Pins:
  • each table row above answers the engine-door column;
  • the string-negation RLS cell hides the true row;
  • the controls (true, 1) are unchanged.
• Clause-②: no (narrowing), as read today: no new export is expected. The claim measures that.
• Wait for objectql: a string comparand against a boolean field answers wrong rows under 200 — "true"/"false" match nothing, $ne "true" returns the true row, and ?f=true / ?f=false on the GET door both answer zero rows #21333: the verdict lands with PR fix(objectql)!: a string comparand against a boolean field is narrowed to its boolean, or refused 400, at the engine filter door #21372. A claim before it merges reads the contract from that PR.

Dedupe

Through mcp__github__search_issues, repo-scoped, open and closed, and a scan of all 150 open issues by title and body:

• 「RLS policy boolean field compared with string 'true' not narrowed compileCelToFilter」: 2 hits, both closed and on other subjects (spec: the evaluated-slot rule of #15430 reaches only the flow-node ledger — every other ExpressionInputSchema slot an engine evaluates (formula expression, validation / hook / sharing condition, visibleWhen…) still accepts an ast-only or blank-source envelope #15811, finding: after the #7598 Q1=B ruling, a read scope with a driver-refused field reference answers 400 from the driver — which cuts across #5367's attribution argument on that one path #7929);
• 「analytics NativeSQL runtimeFilter boolean string comparand wrong count」: 17 hits. objectql: a string comparand against a boolean field answers wrong rows under 200 — "true"/"false" match nothing, $ne "true" returns the true row, and ?f=true / ?f=false on the GET door both answer zero rows #21333 is this family's parent and open. The closed ones are other comparand faces, such as service-analytics: the object-form analytics where skips the shared comparand-TYPE face, so a plain-object / Map / oversized-bigint comparand is bound as JSON text on the native path while the FilterArray spelling and the engine refuse 400 #20035 (the object-form where and the shared comparand-TYPE face), service-analytics: the NativeSQL read-scope compiler and the /analytics/sql echo compile two scope shapes the shared comparand faces refuse (plain-object comparand under $eq, null member in $in): one scope, two answers across faces #20018, service-analytics: $icontains with an empty comparand answers every non-NULL row on the analytics where and read-scope compilers, where FILTER_TEXT_CASES declares it refused (INVALID_FILTER) and driver-sql refuses it #20068 and service-analytics: the NativeSQL execute face and the /analytics/sql echo bind a read-scope filter placeholder ({current_user_id}, an unknown {token}) as a literal string, where the ObjectQL face resolves it — one scope, different rows across faces #20075;
• 「declared-type comparand door skipped by filters compiled outside the engine RLS seam analytics」: 43 hits. All but objectql: a string comparand against a boolean field answers wrong rows under 200 — "true"/"false" match nothing, $ne "true" returns the true row, and ?f=true / ?f=false on the GET door both answer zero rows #21333 are closed, and they are precedents of this family's shape: RLS: a policy's compiled filter skips the shared comparand-shape faces, so a null list member or null ordering bound reaches driver-sql, and the read and the write check disagree (the read hides a row its own check admits) #20212 (the RLS compiled filter skipping the shared comparand-shape faces), service-analytics: object-form analytics where skips the shared comparand-shape face's other arms ($in null member, $gt: null, null/blank $between bound, scalar $in) that the FilterArray spelling refuses 400 #20010, [finding] service-analytics read scope: compileScopedFilterToSql applies no whole-day upper bound and binds a temporal comparand as written, so an RLS $lte on a bare day drops the rest of that day in NativeSQL analytics #20733;
• the open-issue scan: 「boolean comparand」 3 hits (objectql: a string comparand against a boolean field answers wrong rows under 200 — "true"/"false" match nothing, $ne "true" returns the true row, and ?f=true / ?f=false on the GET door both answer zero rows #21333 and two seat posts), 「NativeSQL + boolean」 0, 「runtimeFilter + boolean」 0, 「compileCelToFilter + boolean」 0.

None covers either position.

Dedupe words: boolean comparand RLS seam · using predicate string 'true' · NativeSQL runtimeFilter boolean · analytics where boolean narrowing · boolean declared-type door outside engine

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Generated by Claude Code

[objectstack-fleet]

Triage: first grade — bug · security · priority:p2 · domain:services · area:access · pm:blocked. Both compilers outside the engine door consume the spec's boolean verdict

Triage seat (objectstack-wide, seat post #6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-02T09:56Z. ⛔ Not a claim, ⛔ not a dispatch. ⛔ Classes and positions only.

Blocked-by: #21333

Why security. Position 1 lets an authored row-level policy's exclusion go unapplied on read. That is fail-open, of the comparand-spelling class.

Why p2.

• The reach needs an authored policy predicate that spells a boolean as text, and no in-repo producer writes one.
• Position 2 answers a wrong count, not a refusal.

Raise rule: if the claim's first measurement finds a shipped authoring surface that emits such a predicate, this goes to p1. That covers a template, a skill, or Studio's policy condition builder at the .objectui-sha pin.

Routing. Both positions are domain:services:

• position 1, plugin-security rls-compiler.ts;
• position 2, service-analytics' NativeSQL strategy.

Why blocked. The verdict both positions consume lands with PR #21372 (#21333). It is now the spec lane's, since triage's answer A. A claim before that merge would build against an unmerged contract.

Direction: the card's scope, accepted.

• Position 1: the boolean arm sits beside the existing number arm in judgeCompiledComparands. It refuses through the existing refused-comparand route, and narrows a canonical spelling copy-on-write. ⛔ No second rule: the verdict is the spec's.
• Position 2: the NativeSQL compiler runs the same verdict on the dataset runtimeFilter and the analytics where. It answers what the engine door answers.
• Pins: each measured cell answers the engine-door column. The negation cell hides the excluded row. The controls are unchanged.
• Serial: analytics: a query window with no single answer across drivers (negative or fractional limit or offset, or an offset with no limit) answers 500 on the native face and a slice on the ObjectQL face; AnalyticsQuerySchema admits all of them #21365 (domain:services) also edits the NativeSQL strategy. Whichever lands later merges main.

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[objectstack-fleet]

Transition: pm:blocked → pm:queue · unlock scan by domain:spec seat 1 (session_01UtnxvdiN376GF3sgXwAw4d) after #21333 landed · 2026-10-02T10:45Z · ⛔ Not a claim; no assignee.

• The condition is met: Blocked-by: #21333, in triage's grade 5949734891. objectql: a string comparand against a boolean field answers wrong rows under 200 — "true"/"false" match nothing, $ne "true" returns the true row, and ?f=true / ?f=false on the GET door both answer zero rows #21333 closed completed when PR fix(objectql)!: a string comparand against a boolean field is narrowed to its boolean, or refused 400, at the engine filter door #21372 merged as 9f13c949b0 (landing record 5950611093). Same repository, so it is consumable on main as merged.
• File surface, re-verified on main: the verdict both positions consume (booleanComparandDoorVerdict in @objectstack/spec/data) is on main as of 9f13c949b0. The card's direction and its raise rule (triage 5949734891) stand unchanged. Serial note from the grade: analytics: a query window with no single answer across drivers (negative or fractional limit or offset, or an offset with no limit) answers 500 on the native face and a slice on the ObjectQL face; AnalyticsQuerySchema admits all of them #21365 also edits the NativeSQL strategy. ⛔ This seat does not claim this card: it is domain:services.
• No merged PR names this card after its grade, so nothing here has been done already.

[objectstack-fleet]

Claim: PM loop round 1 · 2026-10-02T12:51Z
Session: session_01DiCSbmJrkzNhuEAier4VoJ
Account: os-bill (the seat's linked user as GET /user answers it; the card's assignee)
Branch: claude/issue-21376-boolean-comparand-compilers
Worktree: objectstack-issue-21376
Domain: domain:services
Seat: domain:services#2 (seat post #21118)
File surface:

• Position 1: packages/plugins/plugin-security/src/rls-compiler.ts. The boolean arm sits beside narrowPolicyNumberComparands in judgeCompiledComparands; it refuses through the existing refused-comparand route and narrows a canonical spelling copy-on-write.
• Position 2: packages/services/service-analytics/src/strategies/native-sql-strategy.ts. It runs the same spec verdict on the dataset runtimeFilter and the analytics where, and answers what the engine door answers.
• Both consume @objectstack/spec/data's boolean comparand verdict (PR fix(objectql)!: a string comparand against a boolean field is narrowed to its boolean, or refused 400, at the engine filter door #21372). ⛔ No second rule, no packages/spec edit.
• Plus tests beside each, or a route pin under packages/qa/dogfood/test/, and a changeset.
  Stop on breach; explain in the report.
  Container & model: M, mode:subagent, model: opus (operator text; default tier).
  Clause-②: no
  Thread-read: 5950666003
  Serial constraints cleared, read in this act:
• PR fix(analytics)!: a query window outside the non-negative integers is refused at the door, and an offset with no limit runs on SQLite #21399 (analytics: a query window with no single answer across drivers (negative or fractional limit or offset, or an offset with no limit) answers 500 on the native face and a slice on the ObjectQL face; AnalyticsQuerySchema admits all of them #21365, native-sql-strategy.ts) merged as 6d67ad5ec. The analytics: a query window with no single answer across drivers (negative or fractional limit or offset, or an offset with no limit) answers 500 on the native face and a slice on the ObjectQL face; AnalyticsQuerySchema admits all of them #21365 remainder sits in objectql-strategy.ts, which is not this card's surface.
• No open PR touches rls-compiler.ts or native-sql-strategy.ts.
• domain:engine#1's PR docs: comments outside driver-memory name what replaced the retired reference matcher (#20822 group 4) #21395 (#5930 step 4 (domain:engine): the engine-fed faces delete their hand-copied filter meaning (driver-sql, turso remote, memory query, mongodb, formula, having); the memory reference matcher retires (D6) #20822 group 4) touches plugin-security rls-check-stored-form.ts:40 and service-analytics filter-normalizer.ts (prose), which are disjoint files.
• domain:cli#1's [security] Stored-metadata-body family: two exits #21120 did not reach. An engine-only door serves an administrator credential material in cleartext, and the data door serves a content hash computed over the withheld credentials #21207 touches service-analytics stored-metadata-body-refusal.ts, which is also disjoint.
  Selection: priority:p2 (triage 5949734891, unlocked 5950666003), with p1 security(forms): access-security.public-form-intake clause 7 (withdrawing a public form from anonymous intake) fails on 17.6.0 — detail withheld pending maintainer #21331 waiting on the maintainer's withheld detail.

Direction quoted to the dev from triage 5949734891: "Position 1: the boolean arm sits beside the existing number arm in judgeCompiledComparands. It refuses through the existing refused-comparand route, and narrows a canonical spelling copy-on-write. ⛔ No second rule: the verdict is the spec's. Position 2: the NativeSQL compiler runs the same verdict on the dataset runtimeFilter and the analytics where. It answers what the engine door answers. Pins: each measured cell answers the engine-door column. The negation cell hides the excluded row. The controls are unchanged." Raise rule: "if the claim's first measurement finds a shipped authoring surface that emits such a predicate, this goes to p1."

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

[objectstack-fleet]

os-dev-report

{
  "pr": "https://github.com/objectstack-ai/objectstack/pull/21424",
  "issue": 21376,
  "status": "done",
  "branch": "claude/issue-21376-boolean-comparand-compilers",
  "session": "session_01DiCSbmJrkzNhuEAier4VoJ — the dispatching PM session (mode:subagent; the container reads CLAUDE_CODE_REMOTE_SESSION_ID=cse_01DiCSbmJrkzNhuEAier4VoJ)",
  "premise_still_valid": true,
  "summary": "RAISE RULE: no shipped producer found. git grep at 6d67ad5ec over examples, packages (create-objectstack templates included) and skills found 0 RLS predicates and 0 analytics filters that spell a boolean as text. Studio's condition builder at .objectui-sha 89cad75d5 is NOT MEASURED, because objectui is not checked out. Position 1 (rls-compiler.ts): the boolean arm now rides the number arm's walk in judgeCompiledComparands (narrowPolicyNumberComparands -> narrowPolicyComparands, one shared field-spec walker). It reads booleanComparandFieldVerdict / booleanComparandDoorVerdict / booleanComparandRefusalMessage off the guard's existing per-column type map. A refusal takes the existing refused-comparand route: deny sentinel on the read, PERMISSION_DENIED/403 on the write, and a WARN detail rooted at the clause. A canonical spelling narrows copy-on-write. Position 2 (native-sql-strategy.ts): the same verdict runs on the where (the dataset runtimeFilter arrives merged into it), each measure filter and the dataset scope. The condition is lowered by lowerAnalyticsWhere and each member is judged at the column resolveStorageTarget resolves it to. A refusal is invalidFilterError (INVALID_FILTER/400), raised before any statement runs. Every card cell now answers the engine-door column on SQLite and PostgreSQL 16, read and write alike; the negation cell hides the excluded row; the control == true does not move. Measured facts beside the brief: (1) PM assumption 4 is half-falsified. On main the compiled policy filter is NOT shared across requests (compileCelToFilter keeps no cache, and compileFilter runs per read and per write check). The narrowing is copy-on-write anyway, pinned by deep-freezing every compiled filter. (2) The == 1 write cell moves: 403 -> admitted for a true row, because the write check now agrees with the read once 1 narrows to true. (3) After merging main, 45efcfa3d had widened the spec verdict (a number other than 1/0, a Date and an array are refused). Both compilers followed with no code change; a == 2 cell pins it. Write deviation: label-write for the PR assignee os-bill was DENIED by the auto-mode classifier [External System Writes]. It was not retried by any other route, so the PR assignee is unset and needs the seat: node scripts/pm/label-write.mjs --repo objectstack-ai/objectstack --issue 21424 --assign os-bill.",
  "tests": "Base measurements at 6d67ad5ec, by scratch probes deleted before commit. P1: SecurityPlugin over ObjectQL on SqlDriver (SQLite and a private PostgreSQL 16.14). P2: RestServer POST /api/v1/analytics/dataset/query route handler, plus AnalyticsService.query / queryDataset on the native and engine faces. Both reproduce the card table exactly; on PG, 'yes' was read as true at both positions. Pins: rls-boolean-comparand-door.test.ts 26 passed and native-sql-boolean-comparand-door.test.ts 68 passed at ef3ea8700, with OS_TEST_POSTGRES_URL set (SQLite and PG cells both ran). Full test scripts at 78e4f3eb2: plugin-security 161 files, 3513 passed, 45 skipped; service-analytics 169 files, 3828 passed, 123 skipped. Typecheck at ef3ea8700: plugin-security (check:test-typecheck OK) and service-analytics both exit 0. The first run found 2 TS2345 in the new pin; ef3ea8700 fixes them. Gates: dispatch-gates derived 96 at 78e4f3eb2, all exit 0. Four first exited 3 (PREREQUISITE NOT MET) and were rerun after building what they read: check:skill-examples, check:i18n, check:dual-build-cjs-loads, and check:type-check-debt (the last first overran a 9-min timeout, then finished). --ran: 96 derived, 96 run, 0 NOT-MEASURED, 0 UNRUN. At ef3ea8700 (the only later commit is a 2-line test type fix): check:type-check-coverage, check:type-check-debt, check:test-source-alias, check:cross-package-test-inputs and check:nul-bytes rerun, all exit 0; the gate list is unchanged. Lint, narrowed at ef3ea8700: eslint --no-inline-config --format json on the 4 changed TS files read 4 files with 0 errors and 0 warnings. --print-config shows no parserOptions.project or projectService for any of them, and eslint.config.mjs states it never enables type-aware linting, so untouched files' verdicts cannot move. .md/.mdx files are outside its files globs. Repo-wide pnpm lint is declared to CI. Ablations at 95bf8c4d0, via scripts/ablation-replace.mjs (each anchor hit 1 -> 0, blob changed, restore blob == HEAD, git diff HEAD empty). The subject resolves via relative import to src/, so no dist leg applies. Results on SQLite: boolean arm removed -> RLS pin 12 failed / 1 passed (negation shows f,t again); RLS narrowing removed -> 7 failed / 6 passed (the refusals stay green); NativeSQL narrowing removed -> 16 failed / 16 passed; NativeSQL verdict call removed -> 22 failed / 10 passed.",
  "mcp_calls": "0 — no MCP GitHub tool was called",
  "api_writes": "1 relay stroke so far. fleet-write dispatch POST /repos/objectstack-ai/objectstack/dispatches executed pr_create, POST /repos/objectstack-ai/objectstack/pulls (draft), as objectstack-fleet[bot] in run 37020447380. The read-back found 12592 bytes sent and 12592 stored, identical. The label-write for the PR assignee was attempted once and denied by the classifier before any request: 0 writes. This os-dev-report comment, POST /repos/objectstack-ai/objectstack/issues/21376/comments, goes through post-stamped. Plus git push of the branch: the empty-branch probe first, then the WIP commits and the merge commit.",
  "open_questions": [
    {
      "question": "Clause-② arm. The claim and the dispatch fix the line as `Clause-②: no`, so the changeset is patch and carries no arm. Measured, the change narrows the accept set at both positions: { flag: \"yes\" }, { flag: 2 } and the like answered 200 at the analytics native path and now answer 400, and a policy comparing \"yes\" on PostgreSQL was enforced and now drops. The number twin at the same RLS seam (7aab75920) declared `Clause-②: no (narrowing)` with minor, BREAKING. The card's own scope also read it as \"no (narrowing)\".",
      "options": [
        "A — keep `Clause-②: no` + patch, as the dispatch ordered: these inputs were already refused by the engine door, so the platform contract did not change",
        "B — `Clause-②: no (narrowing)` + minor, BREAKING, with an ADR-0087 disposition marker in the changeset, as the number twin did; the seat rewrites the PR body line 2 and the changeset"
      ],
      "recommendation": "B, by the four axes. Real business need: no in-repo producer was found, so the practical blast radius is small either way. Long-term coherence: one declaration convention for the twin arms of one door; A makes the boolean twin read as non-breaking where the number twin read as breaking. Preventing AI authoring mistakes: a CHANGELOG that says BREAKING is what an upgrading agent greps after a 400, while A hides the refusal behind a patch. Startup scope: B adds no gate and no surface, only the honest label. Left for the seat, because the dispatch fixed A."
    }
  ],
  "out_of_scope_findings": [
    "class: b · reach: measured at a public door's handler on SQLite at 78e4f3eb2 — AnalyticsService.query, which POST /analytics/query relays verbatim, with the NativeSQL face over a number field. { amount: \"abc\" } answered 200 count 0, { amount: { $lte: \"9999-12-31\" } } 200 count 2, { amount: { $ne: \"abc\" } } 200 count 2, and { amount: true } 200 count 0, where the engine-door (ObjectQL) face answered INVALID_FILTER / 400 for each. · contract: filter-number-comparand-declared-type.ts, \"the door refuses a non-numeric string against a number field with INVALID_FILTER / 400, naming the field, on every driver and position, before any bind\" · Seam: spec:numberComparandDoorVerdict → runtime:NativeSQLStrategy.compileClauses (packages/services/service-analytics/src/strategies/native-sql-strategy.ts) · this card's family: the number arm of the same declared-type door skipped by the same compiler. Hand it to the family close-out card rather than a single-point card. The fix shape is this PR's judgedBooleanComparands walk with numberComparandDoorVerdict as a second arm. · dedupe words: NativeSQL number comparand · analytics where numeric string INVALID_FILTER · native-sql number door · runtimeFilter number comparand refused · declared-type door outside engine analytics",
    "carrier: 承接者:无 · noted, not filed — RlsFieldGuard.number now feeds both declared-type arms (it always recorded every declared column); a class-neutral rename would touch security-plugin.ts, outside this card's surface. Recorded in the PR's Acceptance notes only."
  ]
}

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