fix(app-shell,types): the page designer writes element:repeater's query into dataSource, and the repeater arm takes the spec gate's object waiver (objectui#12056)

[objectstack-fleet]

Fixes #12056
Clause-②: yes

What changes

The page-block inspector's element:repeater row (@object-ui/app-shell, patch). The row of PAGE_BLOCK_FIELDS now matches the element:number row from objectui#11880. The Object picker writes dataSource.object and the Limit box writes dataSource.limit, both through at: 'dataSource'. The Title field and Fields pickers read their object with objectFrom: 'dataSource'. The labels keep their existing keys, and no language-pack key is added.

The repeater's zod arm (@object-ui/types, minor). ElementRepeaterBlockSchema now applies the spec props gate's object waiver, the same way ElementNumberBlockSchema does:

• the bag is ComponentPropsMap['element:repeater'] with object alone made optional (.partial({ object: true }));
• a node refinement on the shared dataSourceSuppliesObject puts the requirement back (ELEMENT_REPEATER_OBJECT_REQUIRED, at properties.object) wherever no dataSource.object names the object.

The arm's dataSource description no longer says that properties.object stays required. Without this half, objectui validate refused the node the moved designer writes (properties: {} beside dataSource.object), which is the stop reported on the card. The seat's claim amendment on the card is the scope for this half.

Docs. In content/docs/guide/data-source.md, the repeater paragraph now states the waiver and that the Studio designer writes the binding, and its JSON example drops properties.object. The waiver sentence in packages/types/src/zod/README.md now names both arms.

Governing text. objectstack ruling 6051498447 (objectstack-ai/objectstack#11509, sub-question 2): "objectui first (the repeater takes dataSource, record_picker and number lose their ?? fallbacks, the designer writes the node-level dataSource, the docs follow), and the spec retirement ships with the pin bump that carries it."

Clause-② yes (widening). Two faces widen to the spec gate's rule:

• StrictAnyComponentSchema (objectui validate / objectui check) and safeValidateSchema now accept a repeater whose bag omits object beside a non-empty dataSource.object;
• the inferred ElementRepeaterBlockSchema type, and PublicBlockNodeOf for element:repeater, type properties.object as optional.

No export is added or removed. The changesets are @object-ui/types minor and @object-ui/app-shell patch. No changeset declares major.

Measured at the public door

The CLI was built from this branch (d59d2c8b2; the only later commit is a README sentence). I ran node packages/cli/dist/cli.js validate FILE:

node	before (round 1, 47454d363, arm unchanged)	after
repeater, properties: {} + dataSource: { object: contact } (what the designer writes)	exit 1, properties → object, invalid_type	exit 0
repeater, properties: {}, no binding	not run	exit 1, properties → object, custom
repeater, properties: { object: contact }	exit 0	exit 0
element:number control, binding only	exit 0	exit 0 (unchanged)
element:number, properties: { aggregate: count }, no binding	not run	exit 1, properties → object, custom

Tests

All of these ran through os-verify-lock on db0ed76e1 (git rev-parse --short HEAD) unless a different commit is named.

• pnpm exec vitest run --maxWorkers=2 packages/types/ …app-shell previews/__tests__/ …inspectors/PageBlockInspector …inspectors/__tests__/page-block-path.test.ts plus the four CLI strict-face tests, objectname-binding-required-11605 and data-list.elementDataSource-11880: Test Files 400 passed (400) · Tests 10478 passed (10478), VERDICT command-exit 0. The full app-shell suite was not run, by the dispatch's instruction; CI runs it.
• pnpm --filter @object-ui/types type-check and pnpm --filter @object-ui/app-shell type-check: VERDICT command-exit 0 on d59d2c8b2, after turbo run build --filter=@object-ui/cli... --filter=@object-ui/app-shell^....
• pnpm check:doc-snippets: "784 of 784 block(s) judged, 0 failed", exit 0, after the gate's own --build-filter build. Also exit 0: check:doc-examples, check:doc-fences, check:doc-example-ids, check:doc-example-readers, check:doc-types, check:readme-exports, check:control-bytes, check:test-path-roots, check:changeset-claims, check:pending-changeset-literals, check:new-line-citations (0 new), the three check:vi-mock-* gates, check:designer-field-key-parity, check:spec-symbols, check-changeset-presence and check-changeset-no-major.
• ESLint over the touched sources: 0 errors. The one warning is a pre-existing as any on a line of the objectui#11880 pin this PR does not change.

New and changed pins:

• PageBlockInspector.repeaterDataSource-12056.test.tsx drives the real inspector. Object and Limit land under dataSource, a display control still writes properties, both pickers list the bound object's fields, and stored flat keys stay visible under Advanced.
• In element-repeater-data-source-11880.test.ts, the old "a binding does not stand in" row is inverted:
  • a binding that names the object stands in;
  • a node with neither is refused with ELEMENT_REPEATER_OBJECT_REQUIRED;
  • a wrong-typed object stays the row's refusal;
  • the differential models the gate's waiver;
  • the bag is pinned member by member against the row;
  • a typed PublicBlockNodeOf literal without properties.object compiles.
• held-public-block-arms-10872, public-block-arms-10872, public-block-responsive-styles-10872 and zod-mirror-parity change only where they asserted or described the old requiredness or bag identity.
• The objectui#11880 inspector pin drops its control row that asserted the repeater's flat write.

Reverse verification (ablation, predictions written first)

All legs ran through ablation-replace.mjs in WRAP mode, with the anchor count and blob change checked on disk. Every restore was proven: blob equal to HEAD, and git diff HEAD empty.

• Inspector row, leg A (old four-field row put back), on e4206e077: predicted 4 failed / 5 passed; observed Tests 4 failed, 5 passed (9).
• Inspector row, leg C (only the Fields picker pointed at objectFrom: 'page'): predicted 1 failed / 8 passed; observed 1 failed, 8 passed (9). The red came at the DOM roster assertion, so the picker pin's DOM half is not vacuous.
• Arm, leg W1 (bag half removed: the full row, no .partial), on d59d2c8b2: predicted 7 failed, by name; observed Tests 7 failed, 254 passed (261), the same 7.
• Arm, leg W2 (node refinement dropped): predicted 5 failed, by name; observed 5 failed, 256 passed (261), the same 5.
• Arm, leg W1 under tsc -p tsconfig.test.json: predicted one error, at the typed binding-only literal; observed exactly one, TS2741 Property 'object' is missing.

Acceptance notes

• Not migrated: a repeater already stored with flat properties.object / properties.limit. The curated controls show the binding's values, and a stored flat key stays editable under Advanced. The v18 retirement ([Direction · v18] Retire the flat object/filter data-binding family — dataSource as the single data-binding door (re-anchor of the deleted #6590 tracker) objectstack#11509) owns that.
• Out of this PR's surface: the repeater renderer's registration in packages/components still declares its object input required: true, while the arm now waives it beside a binding (element:number's registration declares no required on object). This is noted, not filed. Carrier: whoever next touches that registration, or the v18 pin bump that retires the flat key.
• objectstack's own gate waives object beside dataSource.object for every component type (suppliedByDataSource, read on objectstack main). This arm now agrees with it.
• The branch merged objectui main at 1f1c4b526 (objectui#6349 batch 6) before the arm change.

Session: https://claude.ai/code/session_01CGZy1BGCjdN5cXqL9cnvB8 (dispatched dev under the domain:ui seat 3 claim on objectui#12056).

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Generated by Claude Code

[github-actions]

✅ Console Performance Budget

Metric	Value	Budget
Eager closure (gzip, 289 chunks)	3164.3 KB	3204.6 KB
Main entry chunk (gzip)	72.7 KB	350 KB
Entry file	index-CSmW5ege.js	—
Status	PASS	—

The eager closure is every chunk the entry reaches through static imports — what the browser fetches and parses before the app renders. The entry chunk on its own is a small fraction of it.

---

📦 Bundle Size Report

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app-shell (index.js)	19.52KB	7.19KB
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app-shell (types.js)	0.01KB	0.04KB
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auth (AuthGuard.js)	2.07KB	1.00KB
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fields (index.js)	268.74KB	68.04KB
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i18n (fallbackInterpolation.js)	6.25KB	2.77KB
i18n (i18n.js)	8.87KB	3.64KB
i18n (index.js)	5.52KB	2.39KB
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Size Limits

• ✅ Core packages should be < 50KB gzipped
• ✅ Component packages should be < 100KB gzipped
• ⚠️ Plugin packages should be < 150KB gzipped

[objectstack-fleet]

Contract review

Served-tier: CONTRACT_REVIEW_TIER
Head-sha: db0ed76e14610ec8eda870db6365097d68fe1d8d
Local-runs: none

Inputs: card #12056 (body, 5 comments: triage 6080546440, claim 6080758221, report 6081483536, amendment 6081544199, report 6082088385), PR #12064 (body, 13-file list, net diff against main), and the 41 check-runs on the head. Gate verdicts: every run success; Test (coverage), Test (coverage shard) and dependabot are conditional skipped, not failures. No run failed. Not read: the dispatch order, the seat's own conclusions, anything outside pr-12064/.

① Derived judgments

A. Designer write surface (@object-ui/app-shell, block-config.ts, the 'element:repeater' row of BLOCK_CONFIG). The Object picker gains at: 'dataSource' and writes dataSource.object; the Limit box gains at: 'dataSource' and writes dataSource.limit; titleField and fields move from objectFrom: 'self', objectProp: 'object' to objectFrom: 'dataSource'; emptyText and divided keep writing properties. Judged right: it is the card's direction and ruling 6051498447 sub-question 2 ("the designer writes the node-level dataSource"), and it is byte-for-byte the 'element:number' row's shape at head (object at: 'dataSource', field objectFrom: 'dataSource'). BlockPropField is (...kinds) & { at?: 'dataSource' }, so the number kind carries at, which answers the claim's first stop clause; the new pin's Limit row lands dataSource.limit: 25 as a number, and Test shards plus Type Check are green on the head. BLOCK_CONFIG is not re-exported from packages/app-shell/src/index.ts, so no package-entry member changes; the row keeps its six existing label keys and packages/i18n/** is untouched, so the claim's "a new key is a stop" never fires. The card and claim call the table PAGE_BLOCK_FIELDS; the file exports it as BLOCK_CONFIG. A naming slip in the card text, not in the code; noted only.

B. Accept-set widening, both zod faces (@object-ui/types, ElementRepeaterBlockSchema). The bag becomes stripImportedDefaults(SpecElementRepeaterPropsSchema).partial({ object: true }) (ElementRepeaterPropsBag) and the arm gains .superRefine(elementRepeaterObjectIsSupplied, ...) with when returning true on the shared dataSourceSuppliesObject predicate. Result: a repeater whose bag omits object beside a dataSource.object that is a non-empty string is now accepted by StrictAnyComponentSchema (objectui validate / objectui check) and by safeValidateSchema; before, both refused it at properties.object (invalid_type). Judged right: it mirrors the spec props gate's type-blind object waiver that the module docblock on main already documents for element:number (suppliedByDataSource), and the construction is the element:number arm's, helper for helper: same .partial({ object: true }), same predicate, same always-true when, flatPropRefusals over the partial bag (it keys on row.shape, so the refusals are unchanged), and propsBag(type, row, description) is exactly the number arm's inline .optional().describe(...). Without this half the moved designer writes a node its own validator refuses, which the round-1 report measured at the door (exit 1, properties → object).

C. Refusal retained, with a new issue shape. A bag without object and no binding naming one (no dataSource, dataSource.object empty or not a string, or a string dataSource) is still refused at properties.object, but as a custom issue with params.code: 'ELEMENT_REPEATER_OBJECT_REQUIRED' where the row used to report invalid_type. A wrong-typed object beside a binding is still the row's own invalid_type. Judged right and named: it is ELEMENT_NUMBER_OBJECT_REQUIRED's shape, and the changeset describes the new code; it does not spell out that the prior code was invalid_type, which a consumer matching issue codes at that path would notice. A disclosure nit, not a gap in the accept-set.

D. Type face. ElementRepeaterPropsBag's object is optional, so the arm's z.input and with it PublicBlockNodeOf for 'element:repeater' (derived by ClosedArmInput from the arm's shape) type properties.object as optional; the diff's typed binding-only literal compiles under tsc -p tsconfig.test.json (and Type Check is green). Judged right and disclosed in the changeset. Named consequence: a reader that typed properties.object as string off that node type now sees it possibly undefined; the element:number arm carried the same consequence in objectui#10872 batch 2, and nothing in-repo breaks. Under this repo's Clause-② rule this is the widening it is declared as; see ②.

E. Test realignments. The objectui#11880 inspector pin loses only its "repeater still writes properties.object" control row (it asserted the retired write); held-public-block-arms-10872 and public-block-arms-10872 exclude the repeater from "the bag IS the row" because the bag is now a clone by construction, and the member-by-member pin moves to element-repeater-data-source-11880.test.ts (keys equal, catchall never, every member but object identical by reference, object the row's own wrapped in optional); the differential now mirrors the gate's waiver; zod-mirror-parity and public-block-responsive-styles change only their descriptions. Judged right: each edit tracks a changed assertion, none weakens a pin that still holds.

F. Docs. content/docs/guide/data-source.md now says the gate waives properties.object beside dataSource.object, the validator applies the same waiver, a bag with neither is refused, and the designer writes object and limit into dataSource; its example drops "object": "task" from the bag. packages/types/src/zod/README.md names both arms for the waiver. Judged right (the ruling's "the docs follow"); Doc Snippet Type Check and Build Docs are green.

G. Not changed, correctly. The repeater renderer and its packages/components registration; every other BLOCK_CONFIG row and zod arm; packages/i18n/**; packages/components/src/ui/**; no read-side migration of flat properties.object / properties.limit (the v18 retirement owns it, and stored flat keys stay editable under Advanced per the new pin). No export is added or removed in either package (README Export Check green).

② Semver level

Two changesets: .changeset/12056-repeater-datasource.md (@object-ui/app-shell: patch) and .changeset/12056-repeater-object-waiver.md (@object-ui/types: minor). They match what the diff publishes: app-shell changes what an internal field table writes with no entry-member change (patch); types widens the accept-set of both zod faces and loosens one member of an exported arm's input type (minor, Clause-② widening), with no export added or removed and no major. Changeset Declaration, Changeset Bump Policy, Changeset Fixed Group Check, Changeset Claim Re-read and Changeset Overwrite Report are all success; the dev's check-changeset-no-major reads clean.

Clause-②: yes
The PR body carries Clause-②: yes at line start on its second line. Triage 6080546440 and claim 6080758221 said no; amendment 6081544199 replaced it with yes on the dev's measured stop, and the PR matches the amendment, which is the governing text for this head.

③ Boundary flags

• Round-1 open_questions[0] (arm refuses the designer-written node; options A/B/C): answered by amendment 6081544199, option A, in this PR. The diff implements A in full (arm, tests, docs, two changesets). Closed.
• Round-1 out_of_scope_findings (the lint/types seam; the data-source.md paragraph): both absorbed by A. Closed.
• Claim stop clauses (at: 'dataSource' on a number field; a parity gate refusing the moved keys): at is declared on every BlockPropField kind, and check:designer-field-key-parity plus every CI gate is green. Not triggered.
• Round-2 open_questions: none.
• Round-2 out_of_scope_findings (the element:repeater registration in packages/components/src/renderers/basic/data-list.tsx:243 still declares its object input required: true while the node face now waives it beside a binding; "noted, not filed", reach not measured): premise confirmed on the file, which this PR does not touch. The amendment keeps the renderer out of scope ("Still out: the repeater renderer"), so it does not block this head. Escalated to the seat: decide whether any registry-driven surface reads inputs[].required (a Studio required-marker, a registry lint, objectui check outside the zod face) and so whether this needs a card before chore(objectui): bump the console pin past the fix for objectstack-ai/objectui#12056 (the designer's repeater row writes dataSource). #11509's v18 retirement must ship with it objectstack#22476 carries the pin, or stays with the named carrier.
• Round-2 deviations: (1) prose-only edits outside the amendment's list (the module docblock, the dataSourceSuppliesObject docblock, the record:line_items parenthetical, the zod README, the bag-identity row of public-block-arms-10872) — each follows a sentence the change made false; within "the docs follow". Accepted. (2) A parallel elementRepeaterObjectIsSupplied rather than a factory shared with the number arm, so that arm stays byte-unchanged — scope-preserving; the duplication is two short functions. Accepted. (3) Merge commit without trailers (squash-merged), (4) AGENTS.md trailer pair, (5) worktree and namespaced refs removed after the PR — process, not contract. Accepted.
• Round-1 deviations (no PR at the stop; the 11880 control row removed; cli built for the door probe): each resolved or carried into the diff as judged in ①E. Closed.
• Acceptance notes in the PR body (no migration of stored flat keys; the registration mismatch; the branch merged main 1f1c4b526): consistent with the diff and the card. The net diff against main holds 13 files, the PR's own file list, so the merge carried nothing extra.

Implemented-by: claude/issue-12056-repeater-datasource
Reviewed-by: session_01CGZy1BGCjdN5cXqL9cnvB8

VERDICT: PASS