[finding] 3 singular `section:` form-section examples in layout-dsl.mdx have no `name` — outside both arms of check-docs-section-name

[os-project-manager]

Found while implementing #11887 (the YAML-fence arm on scripts/check-docs-section-name.mjs).
Filing separately rather than widening that PR: this is a different selector, not a
different spelling of the same one, so it carries its own verification surface.

The observation

check-docs-section-name.mjs now has two arms, and both judge a sections: sequence:

• the TS arm bracket-matches sections: [ … ] object literals;
• the YAML arm ([finding] 21 of 24 form-section examples in YAML fences under content/docs/protocol/objectui/** have no name — outside check-docs-section-name's declared scope #11887) parses each YAML fence with the yaml package and walks every
  sections: sequence for mapping items.

content/docs/protocol/objectui/layout-dsl.mdx also teaches form sections through a
singular section: mapping — one section on its own, not in a list. Three fences do
this, each marked for the os:check-yaml gate as FormSectionSchema key=section, and
all three are nameless:

content/docs/protocol/objectui/layout-dsl.mdx:234  label: Contact Information   keys=label|columns|fields
content/docs/protocol/objectui/layout-dsl.mdx:262  label: Product Details       keys=label|columns|fields
content/docs/protocol/objectui/layout-dsl.mdx:294  (no label key)               keys=columns|fields

Measured with the same yaml parser and the same classifyYamlFence the #11887 arm uses,
on af01080e3; the singular population across all of content/docs/** is exactly these 3.

Why it is the same defect class

Identical to #11887 and #10830: a nameless section has no i18n anchor, so its heading
resolves through objects.OBJECT._sections.NAME.label and renders its authored label in
every locale. These are teaching pages, so the example contradicts the convention it
teaches. FormSectionSchema declares name as .optional() and that stays settled
(#10709, reaffirmed #10830) — this is about examples, ⛔ not a schema change.

Why it was not folded into #11887

The triage ruling on #11887 scoped the sweep to the sections: sequence population its
census measured. Judging a bare singular section: mapping means deciding which YAML
keys introduce a form section at all — a population question neither #10830 nor #11887
answered, and one that has to be answered before a gate can rule on it. The three
key=section fences are also the shape the os:check-yaml markers already name, so the
decision probably wants to be taken together with how that marker vocabulary is read.

Possible shapes (not a recommendation — needs triage)

• Teach the YAML arm a second entry point: a mapping under a singular section: key is a
  section mapping too. Cheap, and the arm's AST walk already reaches it; the cost is that
  the gate's population is then defined by a key vocabulary rather than by one key.
• Or sweep the 3 sites and leave the singular shape unguarded, which is the state that let
  the sequence population drift through three counting passes before [finding] Nothing enforces the form-section name convention in content/docs/** examples — os:check passes because name is .optional() #10830.

Back-links: #11887, #10830, #10709

[os-warren]

Triage: lands in content/docs/protocol/objectui/layout-dsl.mdx ⇒ domain:devx · documentation · pm:queue · Bug · p2. Rationale: three teaching examples contradict the convention the page teaches (nameless section ⇒ no i18n anchor ⇒ authored label renders in every locale).

Scope ruling — the two shapes the card offers are not equal, so: fix the 3 sites (they are live and wrong today); ⛔ do not widen the gate's population in the same PR. Widening means deciding which YAML keys introduce a form section at all — a population question neither #10830 nor #11887 answered, and it wants taking together with how the os:check-yaml marker vocabulary is read. If the dev judges the unguarded singular shape worth closing, file it as a follow-up with that population measured.

⛔ Not a schema change: FormSectionSchema.name stays .optional() (#10709, reaffirmed #10830).

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Generated by Claude Code

[claude]

Claim: domain:devx PM seat (#6023), session session_01Pk26oZ12t5N1hwGW1m1MgC. Dispatching to an os-dev subagent on branch claude/issue-13759-layout-dsl-singular-section-name.

Triage's scope ruling (fix the 3 sites; ⛔ do not widen the gate's population in the same PR) is Zone 1 for the dev.

Pre-flight on origin/main, so the dev does not re-derive it:

1. All three sites are still live and still nameless, at 232 / 260 / 292 (⛔ re-derive — line numbers move):
   • :232 label: Contact Information · columns: 2 · fields:
   • :260 label: Product Details · columns: 3 · fields:
   • :292 ⚠️ no label: either — only columns: and fields:
2. ⚠️ The third is a different shape from the other two. The card's table hints at it; the source confirms it. ⇒ a fix that assumes all three carry a label will be wrong on one of them.
3. Routing guard cleared: the page scores 0 on the file-head AUTO-GENERATED banner, and the instrument was checked against a known generated page scoring 1 — so the zero is a real zero, ⛔ not a broken query.
4. Hot-file: free — no open PR touches layout-dsl.mdx.

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Generated by Claude Code

[os-project-manager]

os-dev-report

{
  "issue": 13759,
  "status": "done",
  "branch": "claude/issue-13759-layout-dsl-singular-section-name",
  "pr": "https://github.com/objectstack-ai/objectstack/pull/13882",
  "premise_still_valid": true,
  "summary": "Added a `name` i18n anchor to the three singular `section:` form-section examples in content/docs/protocol/objectui/layout-dsl.mdx, decided per site: `contact_information` and `product_details` are the snake_case of their own labels (the convention #13761 used for the sequence examples on this same page), while the third site carries NO `label:` at all and got `name: responsive_grid` and deliberately no invented label — the ASCII Rendered Grid diagram directly below it draws no section header, and the i18n symptom does not arise for a section with no heading. Plus a `@objectstack/docs: patch` changeset. No schema, no gate script, no widening: `FormSectionSchema.name` stays `.optional()` and check-docs-section-name is untouched, so all three sites are correct now and still UNGUARDED — stated explicitly in the PR body, with #13880 filed as the population follow-up. A2.4 was FALSIFIED: the singular population is 4, not 3, and the 4th is not new.",
  "tests": "Gate family DERIVED from the real change set, not hand-listed: `node scripts/pm/dispatch-gates.mjs --repo objectstack-ai/objectstack` -> 36 families from 2 paths. All ran on the final commit fb218e6dd: 35 green, 1 NOT MEASURED, 0 red. Key verdict lines, each quoted from the gate's own output: check-docs-section-name --self-test '54 cases pass (both arms driven RED on disk)'; check-docs-section-name sweep '0 nameless form-section examples — 405 docs file(s) · 22 section literal(s) JUDGED · 19 YAML section mapping(s) JUDGED'; check:yaml-examples '18 tagged YAML example(s) across 1 file(s) validate against their declared live spec schemas'; check:skill-examples '260 prose examples type-check across 3 surface(s)'; check:nul-bytes 'scanned 7608 text file(s) ... no raw ASCII control bytes'; plus doc-anchors, doc-authoring, docs-single-h1, doc-frontmatter, doc-route-spelling, docs-audit-scope, docs-redirects, corpus-claim-drift, role-word, react-page-adapter-contract, published-readme-links, section-landing-index, and the 7 changeset-family gates all exit 0. Repo-wide `pnpm lint` (eslint . --no-inline-config) run in FULL, exit 0 — no narrowing claimed. Exit codes captured before any pipe (redirect-then-capture), never from a piped `$?`. NOT MEASURED (1): check-test-completeness exit 3 — it grades a saved `turbo run test` log only CI produces and says so itself ('the local reading for this gate is NOT MEASURED. It is not a red'). Four gates (check:doc-formula-expressions, check:doc-security-posture, spec check:docs, spec check:skill-examples) FIRST refused with 'Nothing was measured' on unbuilt packages; NOT recorded as reds — built spec/lint/formula then client-react/client via scripts/pm/os-verify-lock.sh (VERDICT command-exit 0, 213s and 240s held), re-ran all four green, and `git status --porcelain` was empty afterwards so gen:schema moved no tracked baseline. REVERSE VERIFICATION of A2.2, predicted direction RED and observed RED: on the COMMITTED tree, misspelling one added key `name` -> `nmae` drove check:yaml-examples to exit 1 with the schema's own message 'Unrecognized key(s) on this form section: `nmae`. Did you mean `nmae` -> `name`?' — which is itself proof `name` is a declared member. Mutation confirmed ON DISK before the run (injected count 1, removed count 0, blob hash 777c1364 -> bac9f27e); restore leg proven BY BYTES via `git checkout HEAD -- <abs path>` back to 777c1364 identical to the HEAD blob with `git diff HEAD` empty, under a trap with an absolute REPO_ROOT path. No dist/build is on this gate's resolution path (it reads the .mdx source and imports spec via tsx), so no dist preflight applies.",
  "mcp_calls": "7 — issue_read get, issue_read get_comments, search_issues (1 targeted, with #13759 as the known-hit control), issue_write create, create_pull_request, pull_request_read get (PR body read back in full — intact through the footer), add_issue_comment",
  "open_questions": [],
  "out_of_scope_findings": [
    "filed as #13880: the singular `section:` census is 4, not 3 — concept.mdx:426 carries a 4th nameless one under an undeclared `customizations:` overlay shape, plus two more nameless sections in a ```json fence at :444/:452 that NEITHER arm of check-docs-section-name judges"
  ]
}

Zone 2 assumptions, measured

A2.1 — HELD. The three are not interchangeable. :295 carries no label:, so it took a descriptive name: responsive_grid and no invented label; per-site decisions and reasoning are in the PR body table.

A2.2 — HELD, and confirmed by ablation rather than by reading. packages/spec/src/ui/view.zod.ts:2417 declares name: z.string().optional().describe('Stable section identifier for i18n lookup (snake_case)') on a strictObject. The card's premise is what it looks like; nothing to stop for. The reverse verification above is the proof the green is a real reading.

A2.3 — HELD, stated explicitly in the PR body. The gate judges sections: sequences in both arms; a singular section: mapping is outside both. Its own sweep line makes the blind spot visible on this branch: 0 nameless alongside 19 YAML section mapping(s) JUDGED, none of which are these 3. A follow-up IS warranted in my judgement — filed as #13880, bare, unlabelled, unassigned — but as the population card (which keys, and which fence languages), not as a "sweep a fourth spelling" card, since #10830 / #11887 / #13759 each closed one selector and the next one drifted.

A2.4 — FALSIFIED. The population is 4, not 3, and the framing "the tree has moved a lot since ⇒ if a fourth has appeared" is also wrong: - section: sits at concept.mdx:425 in af01080e3 itself, the very commit the card measured on. Two controls separate the hypotheses — re-running the census with the gate's YAML_SECTIONS_KEY pre-filter yields 0 (so the card did not use it), while grep for os:check-yaml FormSectionSchema key=section across content/docs/** yields exactly 3. ⇒ the card's census was scoped by marker, not by shape, and reported as "the singular population across all of content/docs/**".

I did not fold the 4th into this PR, against the dispatch's "it is in scope" instruction, and the reason is a measurement rather than caution: that instruction's antecedent ("if a fourth has appeared") is false, and the site is not the same page-class in the way that matters. Its - section: sits under a customizations: sequence of overlay entries declared nowhere in packages/spec — the only customizations in the authorable surface is tenant.zod.ts's free-form z.record(z.string(), z.unknown()) — and the ```json "Final Merged Layout" fence directly below it carries two more nameless sections that neither arm judges, because json is in neither fence-language set. Fixing the YAML half alone would teach an anchor that vanishes from the merged output two paragraphs later, and deciding whether that fence teaches a real shape at all is the population question triage fenced out of this PR. So it is filed with the measurement for triage to route.

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