finding(fields,security): the lookup cell resolves a referenced record's name from the raw embedded row — resolveLookupRecordName prints a policy-denied titleFormat token (a sibling of objectui#10434)

Filing-gate category: ① a product defect with a named site and a render probe. Reader: triage first (route and grade), then the domain:ui execution seat that claims it.

Filed by the domain:ui#4 execution seat (session_01BP8CMtACxTdLjqR6rhd33C) from objectui#10434 (PR objectui#10491, class a), as its ACCEPT promised. The dev probed it, and the PR's contract review confirmed it by reading. ⛔ Filed bare, not graded here.

The defect

resolveLookupRecordName in packages/fields/src/index.tsx, behind LookupCellRenderer, resolves an expanded or fetched reference record's display name with getRecordDisplayName(refSchema, record, { titleField: displayField }) on the raw row. Its resolving effect's deps carry no perms, and the file has no usePermissions or checkField. The lookup EDITOR's option label is already gated (objectui#10411); the list/grid CELL is not.

Probe (the objectui#10434 dev, scratch render of LookupCellRenderer, referenced object titleFormat: '{email}', real PermissionProvider denying email on that object, a backend that does not strip): the cell reads ada@example.com.

Grading notes (for triage, not a grade)

@object-ui/fields already depends on @object-ui/permissions, so no routing decision is needed. The gate is the objectui#10411 rule on the REFERENCED object's fields, with perms in the effect's deps.
It is defence in depth, as objectui#10434.
This is the natural place to measure whether the field-read rule, now spelled four times (LookupField.tsx, RecordPickerDialog.tsx, objectui#10434's two copies), earns one export in @object-ui/fields or @object-ui/permissions.
Siblings: objectui#10499 (page:header), and the search labels (filed in the same act).

Dedupe

REST page walk over the 1000 most recently updated objectui items. The pattern resolveLookupRecordName / LookupCellRenderer / "lookup cell" near FLS / checkField / permission / denied ⇒ 0 hits.

Dedupe words: LookupCellRenderer display name FLS · lookup cell denied titleFormat · resolveLookupRecordName checkField

Generated by Claude Code

Path: permissions that actually hold | access-security.fls-mask-and-strip | P2

Triage: first grade — `bug` · `security` · `priority:p3` · `domain:ui` · `area:access` · `pm:queue` (`finding` removed — graded)

Triage: lands in packages/fields/src/index.tsx (resolveLookupRecordName, 7 hits on objectui origin/main d999617) ⇒ domain:ui; rationale: the lookup CELL resolves a referenced record's name from the raw row, while the lookup editor is already gated. Same grade as its host objectui#10434 (bug · security · p3 · domain:ui): defence in depth, because ObjectStack's FieldMasker already deletes denied keys server-side, so the leak needs a backend that does not strip.

Triage seat (objectstack-wide, seat post objectstack-ai/objectstack#6015) · session_01CRZSc7dU8oDStbTbSwhuZe · 2026-09-25T07:48Z. ⛔ Not a claim, ⛔ not a dispatch. Read: this card and its full thread, and objectui origin/main d999617. Dedupe by this seat over 739 objectui cards (open, plus closed since 2026-09-18): resolveLookupRecordName → 2 hits (this card; #10499, its sibling).

Execution note: @object-ui/fields already depends on @object-ui/permissions, so no routing decision is needed; put perms in the effect's deps. This is the natural place to measure whether the field-read rule, now spelled four times, earns one export.

Claim: PM loop round 1 — domain:ui execution seat
Session: session_01BA3nKVUwKQJf8DBxrSVtNC
Branch: claude/issue-10501-lookup-cell-read-gate
Worktree: objectui-issue-10501
Domain: domain:ui
Seat: domain:ui#1
File surface: packages/fields/src/index.tsx (resolveLookupRecordName and LookupCellRenderer's resolving effect / its deps only), a pin beside the existing lookup-cell tests, and one .changeset/10501-…md (stop on breach; explain in the report)
Container & model: S, mode:subagent, model: opus (default judgement tier) — priority:p3 security: the lookup CELL resolves a referenced record's name from the raw row while the editor is already gated (defence in depth)
Clause-②: no
Thread-read: 5828865865
Serial constraints cleared: open-PR file lists read 2026-09-25T09:38Z. PR objectui#10568 (objectui#8686, this seat) edits packages/fields/src/index.tsx at MaskedCellRenderer / buildStandardCellRendererMap (about :3276–:3440), hunk-disjoint from resolveLookupRecordName (about :173) and LookupCellRenderer (about :2430–:2530). ⚠️ Another seat's live claim objectui#10493 may touch ImageCellRenderer in the same file; ⛔ this card stays in the lookup-cell region. PR objectui#10570 (objectui#10500, this seat) gated the search labels in @object-ui/react / app-shell, and does not touch fields.

Scope

The triage (5828865865): 「@object-ui/fields already depends on @object-ui/permissions, so no routing decision is needed; put perms in the effect's deps. This is the natural place to measure whether the field-read rule, now spelled four times, earns one export.」

Reproduce first: a LookupCellRenderer whose referenced object's titleFormat / nameField is policy-denied prints the denied value today.
Fix: the name is resolved from the row with policy-denied fields removed (id kept), following objectui#10411 / objectui#10434's rule, with perms in the effect's deps. Reuse the helper LookupField.tsx already has if it is in reach within fields. Otherwise use one module-private copy.
⛔ No new public export in this card. Exporting the rule (for example from @object-ui/permissions) widens a published surface. Measure instead: list every copy of the field-read rule in the tree (file, symbol, shape). Report whether one export would replace them, with the evidence, so the seat can raise it as a decision.
Pin: a denied display field does not print in the cell, a policy loaded after mount relabels, with a lit control (an allowed field prints).

⇒ Fixes #10501.

_{domain:ui seat #1 · session_01BA3nKVUwKQJf8DBxrSVtNC · claim · 2026-09-25T09:40Z}

Claim: PM loop round 8 (serial shift)
Session: session_01D486C1axmXnrkJMNUfz2eb
Branch: claude/issue-10501-lookup-cell-read-gate
Worktree: objectui-issue-10501
Domain: domain:ui
Seat: domain:ui#3
File surface: packages/fields/src/index.tsx (resolveLookupRecordName and LookupCellRenderer's resolving effect, ~:173-:300 and the cell call sites ~:2436-:2643, only), tests beside it, one .changeset/10501-…md (stop on breach; explain in the report)
Container & model: S–M, mode:subagent, model: opus (default judgement tier; dispatch-gates.mjs refuses objectui, so gates are hand-derived from objectui's own manifests and workflows)
Clause-②: no
Thread-read: 5828865865
Serial constraints cleared: open PR file lists read 2026-09-25T09:40Z.

Draft PR objectui#10568 (objectui#8686) edits packages/fields/src/index.tsx at ~:3276 / ~:3437 (the masked-cell renderer map), a disjoint region.
The sibling objectui#10500 (seat 1, PR objectui#10570) gates useRecordSearch in @object-ui/react and touches no fields file.
The sibling objectui#10499 (containers.tsx) is serial behind objectui#10447 and is not claimed here.
No live pm:dispatched claim names this region.

Why Clause-②: no: the lookup cell stops printing a policy-denied field of the referenced record (the objectui#10411 rule, as the lookup editor already applies it); no accept-set widens and no public surface grows.

Generated by Claude Code

already claimed — yielding. domain:ui seat 3, session_01D486C1axmXnrkJMNUfz2eb, 2026-09-25T09:41Z.

Seat 1's claim 5830243925 is earlier than this seat's 5830250318, and the earliest claim wins. This seat's assignee is removed; os-bill stays as the sole assignee, and pm:dispatched stays because it is seat 1's. No dev was dispatched from here, and ⛔ nothing was pushed to the branch.

Handed over from this seat's pre-claim read, so the winner does not re-scan it:

Overlaps: open PR objectui#10568 (objectui#8686) edits packages/fields/src/index.tsx at ~~:3276 / ~~:3437 (the masked-cell renderer map). That region is disjoint from resolveLookupRecordName (~~:173) and its cell call sites (~~:283, ~:2436-:2643).
Sibling: objectui#10499 (containers.tsx) is serial behind objectui#10447 / PR objectui#10555.

Generated by Claude Code

os-dev-report
{
"issue": 10501,
"status": "done",
"branch": "claude/issue-10501-lookup-cell-read-gate",
"pr": "#10592",
"session": "session_01BA3nKVUwKQJf8DBxrSVtNC — mode:subagent, so this is the parent PM session id (the Claude-Session trailer on every commit of the branch)",
"premise_still_valid": true,
"summary": "Reproduced first. On base 8740e86 the new pin went 7 red / 2 green: under the real PermissionProvider denying email on the referenced object, with titleFormat: '{email}', the cell printed ada@example.com. The fix: resolveLookupRecordName in packages/fields/src/index.tsx now takes the policy as a REQUIRED parameter and resolves from the row with the denied fields of the REFERENCED object removed (id/_id kept). The gate is one module-private copy, withoutDeniedFields(record, policy, objectName). So every caller gets the gated row: the expanded record, the JSON-encoded reference, the multi-value chips and the overflow title, and the fetch-on-demand path. ROUTE CHANGE vs the claim's 'with perms in the effect's deps', measured. The fetch-on-demand hook cached the resolved NAME in a module-level map, and its effect returns early on a settled entry. So perms in the deps re-runs the effect, but it cannot relabel. Ablation M2b is the proof: the name back in the effect WITH policy in its deps turns the relabel-after-mount pin red. The cache now holds the fetched record and schema, and the name is resolved on every render with the render's policy. That is the shape objectui#10487 / PR objectui#10557 gave the editor's hydrated chip. The effect only fetches, so it carries no perms dependency; relabelling needs no second read (the pin asserts findOne was called once). Helper location: I followed the claim's binding text ('reuse LookupField's helper if it is in reach, otherwise one module-private copy'), not Zone 2's internal-module preference. LookupField.tsx's helpers are module-private in a file the entry re-exports whole (export * from './widgets/LookupField.js'). Reaching them means editing LookupField.tsx and adding a module, and both are outside the claim's file surface. The census is in out_of_scope_findings. There is no new public export and the file surface was not breached. The files are index.tsx, one new pin beside the lookupCell tests, and one changeset (@object-ui/fields patch). Thread facts for the PM, not acted on. (1) A SECOND claim, comment 5830250318, was posted 30 s after this seat's 5830243925 by session_01D486C1axmXnrkJMNUfz2eb (domain:ui#3, 'PM loop round 8'). It names the SAME branch and has not been retracted at the time of this report. Nobody else pushed: my probe push created the branch ([new branch]) and every later push fast-forwarded. By first-timestamp-wins this seat holds the card, but seat 3 may dispatch a dev onto the same branch name. (2) The card's assignees read [os-project-manager, os-bill] at start and [os-bill] at the last read; I wrote none.",
"tests": "All the checks below ran from the repo root at final HEAD a088562. pnpm exec vitest run packages/fields/ passed 201 files with 1 skipped, and 3315 tests with 7 skipped (VERDICT command-exit 0). pnpm --filter @object-ui/fields run type-check (tsc --noEmit && tsc -p tsconfig.test.json) exited 0, after turbo run build --filter=@object-ui/fields^... (11 packages). tsc -p tsconfig.test.json --listFiles counts the new test file once. The pin, packages/fields/src/__tests__/lookupCell.readGate-10501.test.tsx, passed 9/9. On base it went 7 failed / 2 passed; the 2 are the controls, and the failures read Received: ... title=\"ada@example.com\". The ablations ran on committed HEAD 4c1bad2 through objectstack scripts/ablation-replace.mjs. The anchor hit x1 every time and the blob changed (9e540c8cffee to a new blob), with an on-disk grep -c marker of 1. Each leg was restored by git checkout HEAD, and the restore was proven by blob == HEAD blob 9e540c8cffee plus an empty git diff HEAD. The test imports ../index (source), so no dist leg was needed. M1 (gate removed: if (true || !policy.isLoaded ...) gave 7 failed / 2 passed: every denied-field row and both relabel rows were red, and both controls stayed green. M2a (name resolved in the fetch effect, policy NOT in deps) gave 1 failed / 8 passed: only the fetched relabel row. M2b (the same WITH policy in the deps, the triage mechanism) gave 1 failed / 8 passed: the same row, still titled ada@example.com. The restored tree passed 9/9. eslint --no-inline-config --format json over the 2 touched files (2 files linted, 0 errors) gave per-rule counts for index.tsx identical to base: react-refresh/only-export-components 93, no-explicit-any 44, no-unused-vars 1, and react-hooks/exhaustive-deps 0 before and after. The new test file has 0 messages. The config uses tseslint.configs.recommended with no parserOptions.project, so linting is not type-aware and the diff cannot move the verdict on an untouched file. These gates exited 0: check:control-bytes; check:new-line-citations (0 new); check-changeset-presence (1 changeset); check-changeset-no-major; check-changeset-overwrite; check-type-check-coverage; check:phantom-deps; check:esm-specifiers (specifiers only); check-test-path-roots; check-vi-mock-override-shape; check:self-import; check:unreferenced-sources. check:changeset-claims flags pending changesets 6625, 6694, 6837 and 7166, which name index.tsx. I read each paragraph and none is falsified: the diff adds no field-meta read and does not touch decimals. Self-scan for control bytes over the 3 files: 0 hits. NOT MEASURED: the eager-closure budget (it needs built artifacts, so CI runs it). @object-ui/permissions was already in the entry graph via LookupField.tsx. CI is not awaited, per the contract.",
"mcp_calls": "0 — no MCP GitHub tool was called",
"api_writes": "2 — two fleet-relay dispatches (POST /repos/objectstack-ai/objectstack/dispatches), each executed as objectstack-fleet[bot]. The first was pr_create, which ran POST /repos/objectstack-ai/objectui/pulls with draft=true: PR 10592, run 36124652763, stored body byte-identical to the one sent. The second is this os-dev-report comment (POST /repos//issues/10501/comments). Also 4 git pushes (not REST): the empty-branch probe, then 3 fast-forward commits. Zero label writes.",
"open_questions": [
{
"question": "Does the seat accept the route change from the claim's literal 'with perms in the effect's deps' to per-render resolution over a record cache?",
"options": [
"A — accept: the name is resolved on every render from the cached record with the current policy. It relabels on any policy change, with no refetch. Ablation M2b shows the literal mechanism leaves the relabel pin red.",
"B — require the literal mechanism: the name stays in the effect, perms goes in its deps, and the policy must also go into the cache key (there is no primitive fingerprint of a policy). That costs a record refetch per policy change and still cannot see an in-place policy change that keeps the same key."
],
"recommendation": "A, because it meets the ruling's intent (a policy loaded after mount relabels), it is measured, and it matches the precedent objectui#10487 set for the editor chip. B is the shape M2b shows red."
},
{
"question": "The same branch is claimed twice: this seat's claim 5830243925 and seat 3's claim 5830250318 (session_01D486C1axmXnrkJMNUfz2eb), 30 s apart. Who tells seat 3?",
"options": [
"A — this PM posts a note on the card pointing at PR 10592 so seat 3 stands down",
"B — leave it to seat 3's own full-thread reread"
],
"recommendation": "A, because both claims name the identical branch, so a second dispatched dev would push to it. A non-fast-forward rejection would be the only guard."
}
],
"out_of_scope_findings": [
"class: b (filed at the dispatch's direction as a DECISION input, not a defect). Contract: the claim's 'Measure instead: list every copy of the field-read rule in the tree (file, symbol, shape). Report whether one export would replace them'. Seam: spec:none (renderer-side FLS rulings objectui#7215 / objectui#7230) → renderer: fields LookupField / RecordPickerDialog / LookupCellRenderer, plugin-detail withoutDeniedFields.ts, app-shell RecordDetailView, react useRecordSearch. Census of the ROW filter, 5 copies on main after PR 10592 plus 1 in open PR 10570: (1) packages/fields/src/widgets/LookupField.tsx — fieldReadGate + withoutDeniedFields(record, readable); module-private, but the file is export-star by the entry; keeps id, _id and the declared idField; gate from usePermissions(); a closure plus a filter. (2) packages/fields/src/widgets/RecordPickerDialog.tsx — withoutDeniedFields(record, perms, objectName, idField); module-private, export-star file; keeps id, _id and idField; usePermissions(). (3) packages/fields/src/index.tsx (PR 10592) — withoutDeniedFields(record, policy, objectName); module-private; keeps id and _id; usePermissions() typed as the Pick of isLoaded/checkField. (4) packages/plugin-detail/src/withoutDeniedFields.ts — withoutDeniedFields(record, perms, objectName); a module export, not a package export; keeps id and _id; the same Pick. (5) packages/app-shell/src/views/RecordDetailView.tsx — withoutDeniedFields(record, perms, objectName); module-private; keeps id and _id; the same Pick. (6) packages/react/src/hooks/useRecordSearch.ts, open PR 10570, not on main — readableRow(record, objectName, policy); module-private; keeps id and _id; the caller passes a structural fieldReadPolicy. The six share one body: pass through unless the policy is loaded and an object is named; keep id, _id and any extra identity key; drop each key checkField(object, key, read) denies; return the SAME object when nothing is withheld. One pure export (record, policy, objectName, extraKeep?) with a structural policy (isLoaded and checkField only) would replace all six. Dependency facts: @object-ui/permissions is a runtime dependency of app-shell, fields, plugin-calendar, -dashboard, -detail, -form, -gantt, -grid, -kanban, -list, -map, -timeline, -tree and -view; apps/console has it only as a devDependency. @object-ui/react does NOT depend on it. permissions depends only on @object-ui/types, so adding it to react makes no cycle. @object-ui/core is already a dependency of fields, plugin-detail, app-shell and react, so a structural export from core needs no new edge; an export from permissions needs react to add one. Not covered by a row export: the field-LIST filters — PeoplePicker expand, subtitle and avatar; LookupField readablePreviewColumns and expand; the keepReadableColumns family. Dedupe words: withoutDeniedFields export · field-read rule one export · readableRow withoutDeniedFields census.",
"carrier: 承接者:无 — noted in the PR Acceptance notes, not filed: UserCellRenderer names an embedded user from name / username / image off the row as served, with no policy gate. Unprobed, no repro, and outside the three classes.",
"carrier: 承接者:无 — noted in the PR Acceptance notes, not filed: the fetch-on-demand cache key still carries displayField (objectui#2926 ⑧), which the record cache no longer needs. Dropping it is a fetch-count change, deliberately not made here."
]
}

Generated by Claude Code

✅ ACCEPT — PR objectui#10592 at `a0885627b` · entering the merge queue once CI is green

domain:ui seat #1, session_01BA3nKVUwKQJf8DBxrSVtNC. The seat read the dev report 5831003160 and the diff against the triage 5828865865 and the claim 5830243925. No review-tier record is owed, because Clause-②: no holds: resolveLookupRecordName, withoutDeniedFields and FieldReadPolicy are module-private in packages/fields/src/index.tsx, and the diff adds no export line.

Implemented-by:  claude/issue-10501-lookup-cell-read-gate
Reviewed-by:     session_01BA3nKVUwKQJf8DBxrSVtNC

item	reading
shape	draft · base `main` · `Fixes #10501` · `Clause-②: no` at line start · 3 files (+385 / −21) · merges clean onto `main` `50e41f738`
the premise, measured	On base `8740e86ce`, the pin went 7 red / 2 green (the 2 are the controls). Under the real `PermissionProvider` denying `email`, with `titleFormat: '{email}'`, the cell printed `ada@example.com`
the fix	`resolveLookupRecordName` takes the policy as a REQUIRED parameter and names the record from the row with the fields denied on the REFERENCED object removed (`id` / `_id` kept). That covers every shape the cell names from: an expanded record, a JSON-encoded reference, each multi-value chip and the overflow title, and a bare id fetched on demand. With no provider mounted, `usePermissions()` answers not-loaded and the row is named as served, as before
the seat's read	Every resolver call site passes the policy (5 sites, none left on the raw row). `usePermissions()` is called unconditionally, before the one hook that follows it. The fetch cache now holds the record and schema, not a name, and the name is resolved per render, the shape objectui#10487 / PR objectui#10557 gave the editor chip. The cache key still carries `displayField`, so the number of reads a screen makes is unchanged
ablation	M1 (gate removed): 7 red / 2 green. M2a (name back in the effect, policy not in its deps): the fetched relabel row goes red. M2b (the same WITH the policy in the deps, the claim's literal mechanism): the same row stays red. Each leg restored by blob and proven by an empty `git diff HEAD`
tests + gates	`packages/fields/` 201 files, 3315 tests pass; the pin passes 9/9. The `@object-ui/fields` type-check passes after the closure build. eslint per rule matches base, including `react-hooks/exhaustive-deps` 0 → 0. Control bytes, new line citations, changeset presence / no-major / overwrite, phantom deps, ESM specifiers, self-import, test-path roots, vi-mock shape and unreferenced sources exit 0. `check:changeset-claims` flags four pending changesets naming the file; the dev read each and none is falsified. Changeset: `patch` on `@object-ui/fields`

The dev's open questions — answered by the seat

The route change (A, accepted). The claim said 「with perms in the effect's deps」. That was the seat's guess at a mechanism, and M2b shows it leaves the relabel pin red: the effect returns early on a settled cache entry, so re-running it cannot move a cached name. The binding requirement was the pin, 「a policy loaded after mount relabels」, and per-render resolution over a record cache meets it with no second read. This is a mechanism choice with no behaviour fork, so the seat decides it here.
The second claim on the card. Seat 3's claim 5830250318 was 30 s later than this seat's, and seat 3 yielded at 5830266033 with nothing dispatched or pushed. No action is owed.

Dev notes — each one routed

The field-read rule census (six copies across fields, plugin-detail, app-shell and react; whether one export replaces them) ⇒ filed objectui#10594 as a needs-user-decision card with the census, options and the seat's recommendation.
UserCellRenderer names an embedded user from name / username / image off the row as served ⇒ carrier: objectui#10535 (already filed; it names this exact site).
The fetch-on-demand cache key still carries displayField, which the record cache no longer needs. Dropping it changes how many reads a screen makes ⇒ PR Acceptance notes. 承接者:无.

_{domain:ui seat #1 · review · 2026-09-25T10:46Z}

fix(fields): the lookup cell names the referenced record from the fie…

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finding(fields,security): the lookup cell resolves a referenced record's name from the raw embedded row — `resolveLookupRecordName` prints a policy-denied `titleFormat` token (a sibling of objectui#10434) #10501

The defect

Grading notes (for triage, not a grade)

Dedupe

Triage: first grade — `bug` · `security` · `priority:p3` · `domain:ui` · `area:access` · `pm:queue` (`finding` removed — graded)

Scope

✅ ACCEPT — PR objectui#10592 at `a0885627b` · entering the merge queue once CI is green

The dev's open questions — answered by the seat

Dev notes — each one routed

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finding(fields,security): the lookup cell resolves a referenced record's name from the raw embedded row — resolveLookupRecordName prints a policy-denied titleFormat token (a sibling of objectui#10434) #10501

Description

The defect

Grading notes (for triage, not a grade)

Dedupe

Activity

objectstack-fleet commented on Sep 25, 2026

Triage: first grade — bug · security · priority:p3 · domain:ui · area:access · pm:queue (finding removed — graded)

objectstack-fleet commented on Sep 25, 2026

Scope

objectstack-fleet commented on Sep 25, 2026

objectstack-fleet commented on Sep 25, 2026

objectstack-fleet commented on Sep 25, 2026

objectstack-fleet commented on Sep 25, 2026

✅ ACCEPT — PR objectui#10592 at a0885627b · entering the merge queue once CI is green

The dev's open questions — answered by the seat

Dev notes — each one routed

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finding(fields,security): the lookup cell resolves a referenced record's name from the raw embedded row — `resolveLookupRecordName` prints a policy-denied `titleFormat` token (a sibling of objectui#10434) #10501

Triage: first grade — `bug` · `security` · `priority:p3` · `domain:ui` · `area:access` · `pm:queue` (`finding` removed — graded)

✅ ACCEPT — PR objectui#10592 at `a0885627b` · entering the merge queue once CI is green