metadata designer: a create flow saves the spec seed's placeholder binding when the author picks none — a dataset with no base object saves object: example_object and its reads are refused

Filing gate ①: a user-visible authoring defect that contradicts the declared contract. reach: a public entry, the console's dataset designer in create mode, measured in Chromium against a live backend. Family: a create flow writes a placeholder the author never chose. objectui#12789 (PR #12806) is its first occurrence: a non-Latin Label named the item field. This is the second, so this card covers every placeholder the create seeds carry, with an enumeration pin.

Reader who acts: objectui triage. The landing is the create flow's body builder, packages/app-shell/src/views/metadata-admin/createBody.ts (buildCreateModeBody, which spreads the spec seed under the draft), and the designer's save gating. Filed by domain:ui seat 3 (session_01Vk15bz8xHtKGUfXfCm16h4) from the os-dev report on objectui#12789 (PR #12806), which does not change this. ⛔ Not a claim.

What happens

An author opens a new dataset, gives it a name and saves it without picking a base object; the box still reads "Select an object…".
The save sends object: "example_object" and succeeds.
No such object exists. The next analytics read is refused, and the console toasts "Analytics query refused: … reading "example_object" is not permitted".

Measured

Backend: objectstack 66d456d01 examples/app-crm, --fresh, with a writable package com.qa.vrf (namespace qavrf). Chromium on objectui main 8df2608, and again at PR fix(app-shell): a report's or dataset's Label with no machine name leaves the Name empty (objectui#12789) #12806's head e4b532b.
PUT /api/v1/meta/dataset/probe_ds?mode=draft&package=com.qa.vrf sent the body {"name":"probe_ds","label":"Probe Ds","object":"example_object","dimensions":[],"measures":[{"name":"count","aggregate":"count"}]} and got 200, "Saved dataset 'probe_ds'".
The next read was refused: [Analytics] object-level read admission denied for "example_object".

The contract (read from source)

@objectstack/spec kernel/metadata-create-seeds.ts: BUILTIN_METADATA_CREATE_SEEDS.dataset.object is the placeholder example_object (PLACEHOLDER_OBJECT).
That file's header says: "Each seed is a COMPLETE minimal valid object including placeholder identity (name/label/object binding); a create flow overrides those from user input."
The designer's create flow spreads the seed under the draft. It does not override the object binding when the author picks none, and the save does not ask for one.

Expected

A create flow never saves a seed placeholder the author did not override. For a dataset, the save asks for a base object, as a field's lookup asks for its target ("Pick the object to link to"), instead of sending example_object.
An enumeration pin over BUILTIN_METADATA_CREATE_SEEDS asserts that every placeholder identity a seed carries (name, label, object binding) is either overridden from user input or refused at save. The next seed added cannot carry a placeholder through silently.

Dedupe (open and closed):

every objectui domain:ui card (2433 rows) plus the newest objectui issues, grepped for example_object|PLACEHOLDER_OBJECT|create seed|createSeed|buildCreateModeBody|BUILTIN_METADATA_CREATE_SEEDS and for a dataset placeholder or a dataset saved without a base object. The hits are objectui#12715, studio: the page-create seed and the page preview build the default record page without the runtime's detail sections, so an object with no fieldGroups gets a bare record:details unlike the running app #12442, Synthesized aside region carries className, which PageRegionSchema rejects — a Reference Rail page has no persistable spelling #4286 and finding(app-shell/inspectors,i18n): the dashboard widget inspector's field combo shows the English literal Search fields… as its search placeholder — engine.form.searchFields exists in en-US and zh-CN and its sibling inspector reads it #10696, all other subjects;
positive control on the same rows: flow designer, 24 hits.

Dedupe words: dataset example_object placeholder seed, dataset save without base object, createSeed placeholder object binding, buildCreateModeBody seed spread.

Generated by Claude Code

Triage: first grade, `bug` · `priority:p2` · `domain:ui` · `area:studio` · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-16T22:58Z

Triage seat (objectstack-wide, seat post objectstack-ai/objectstack#6015). ⛔ Not a claim, ⛔ not a dispatch.

Why p2: a create flow saves the spec seed's placeholder binding (object: example_object), and the dataset's reads are then refused. It is the second occurrence of the class, so the enumeration pin is in scope.
For the claimant: The landing is createBody.ts (buildCreateModeBody) and the save gating. A placeholder never saves as authored. Serial with PR fix(app-shell): a report's or dataset's Label with no machine name leaves the Name empty (objectui#12789) #12806 (metadata designer: a report's or dataset's Label in a non-Latin script (or a cleared Label) derives the Name field, where the object designer leaves it empty and asks for one #12789).

Claim: PM loop round 3 (priority:p2)
Session: session_01XVp19E1MYUTFM3dnkwz8gB
Account: baozhoutao (the seat's linked user as GET /user answers it; the card's assignee)
Branch: claude/issue-12810-seed-placeholder
Worktree: objectui-issue-12810
Domain: domain:ui
Seat: domain:ui#2
File surface: packages/app-shell/src/views/metadata-admin/createBody.ts (buildCreateModeBody); the metadata designer's create-mode save gating (the module that decides whether Save is allowed for a create draft, located at start; the dataset designer's base-object field only where the save gate surfaces its reason); packages/i18n/src/locales/*.ts (new keys only, all ten packs, if the refusal needs a message); tests beside, including one enumeration pin over BUILTIN_METADATA_CREATE_SEEDS; one .changeset/12810-*.md (@object-ui/app-shell: patch, plus @object-ui/i18n if keys are added) (stop on breach; explain in the report).
Container & model: M, mode:subagent, model: opus (default tier; dispatch-gates --tier --repo objectstack-ai/objectui reads no path-derived mandate for these paths)
Clause-②: no (provisional: the dev reports yes if a published export changes)
Responsibility: the console's create flow (buildCreateModeBody spreads the spec seed under the draft and saves its placeholder binding) | the spec seed's header already says a create flow overrides the placeholder identity from user input, and the field designer's lookup already asks for its target | every author who creates a dataset (and any seed with a placeholder binding) and saves without picking one
Thread-read: 6226269923
Serial constraints cleared: PR #12806 (objectui#12789, the first occurrence of this class) is merged. Scanned every open objectui PR's file list and the File surface lines of every pm:dispatched objectui claim just now; none touches createBody.ts or the designer save gate. objectui#12690 (the discard-draft confirm and toast) and objectui#12768 (DirectoryPage.tsx) are in metadata-admin but on other files. This seat's in-flight objectui#12803 (PR #12832) and objectui#12812 (PR #12836) are disjoint.
Claimed at: 2026-10-17T00:41Z

os-dev-report

{
  "issue": 12810,
  "status": "done",
  "branch": "claude/issue-12810-seed-placeholder",
  "pr": "https://github.com/objectstack-ai/objectui/pull/12847",
  "session": "session_01XVp19E1MYUTFM3dnkwz8gB",
  "premise_still_valid": true,
  "summary": "buildCreateModeBody (createBody.ts) now carries a spec create seed's structural defaults but never its placeholder identity: name, label, and every top-level key whose value is the spec's placeholder object. The shared create-mode save gate is doSave in ResourceEditPage.tsx; every designer uses it, the dataset designer has no gate of its own (A1 holds). It refuses Save before any request when a placeholder key the author left blank is in the LIVE /meta/types schema's required list, and names the key. So a dataset with no base object is refused, and no PUT carries the placeholder object. Measured against the order: (1) the installed spec (@objectstack/spec 18.0.0-next.2, kernel entry) keeps PLACEHOLDER_OBJECT and BUILTIN_METADATA_CREATE_SEEDS module-private and exports only getMetadataCreateSeed and listMetadataCreateSeedTypes. The placeholder object is therefore read from the seeds themselves (the set of every seed's object value); no literal copy. (2) A3 measured false: designer strings live in packages/app-shell/src/views/metadata-admin/i18n.ts, which has two tables (en-US, zh-CN), not the ten packages/i18n packs. One new key, engine.validation.seedPlaceholderUnset, was added there; packages/i18n is untouched. (3) The label placeholder is in scope by the enumeration ruling. Behaviour change: on action, agent, dashboard, dataset, email_template, flow, page, skill and tool, Save with a blank Label is now refused at the client. Before, it saved the seed's 'New X'. Where Label is optional (hook, mapping, object, permission, translation), the item is saved with no label. page.object is optional in the spec, so a page is saved unbound rather than refused.",
  "tests": "All at HEAD 20746107bd. Closure build: pnpm --workspace-concurrency=2 --filter '@object-ui/app-shell^...' build, VERDICT command-exit 0. Type-check: pnpm --filter @object-ui/app-shell type-check (tsc --noEmit && tsc -p tsconfig.test.json; the test tsconfig includes src/**/*.test.ts(x)), VERDICT command-exit 0. Targeted vitest, --maxWorkers=1: the two new files plus createBody.test.ts, 'Test Files 3 passed (3) / Tests 40 passed (40)'. Narrowed package run: the 46 files matching metadata-admin ResourceEditPage*, createBody*, anchors*, i18n* and inspectors/DatasetDefaultInspector*, 'Test Files 46 passed (46) / Tests 275 passed (275)'. Plus every other test file that renders MetadataResourceEditPage (14 files), 'Test Files 14 passed (14) / Tests 149 passed (149)'. Full packages/app-shell/ dir (1522 test files, --maxWorkers=1): NOT MEASURED. After 1h48m under the lock it had printed nothing past 'RUN'; I killed my own PID 19356 and declared it for CI. Ablation, committed first, via ablation-replace.mjs --delete on the line in buildCreateModeBody that drops placeholder keys. Anchor 1 → 0, blob 3384b667c05e → 44cc85612aac. Result 16 failed / 19 passed: (a), all 14 seed-carrying rows of the pin's per-type test, and the dataset count test went red; (b), the controls and view stayed green. Restore: blob == HEAD 3384b667c05e and git diff HEAD empty, checked by the script. The first ablation attempt was a no-op: --replacement '' was refused by the tool, which restored the file. That run measured nothing and is not counted. No dist/ sits between the mutation and the run: the tests import createBody by relative source path. Lint, narrowed to the 5 changed files: eslint --no-inline-config --format json reports 5 files, 3 errors and 57 warnings, all in ResourceEditPage.tsx. They are react-hooks/static-components at three render sites. The base blob f3a7b870a1 linted the same way gives the identical 3 errors and 57 warnings (lines shifted by +22). The other 4 files have 0. No type-aware linting is configured (no parserOptions.project or projectService), so the diff cannot move the verdict on any untouched file.",
  "mcp_calls": "0",
  "api_writes": "2 so far, plus this comment: (1) pr_create via the fleet-write relay (POST /repos/objectstack-ai/objectui/pulls, draft, plus POST /issues/12847/assignees baozhoutao; read back 5759 bytes sent = 5759 stored); (2) this os-dev-report comment, POST /repos/objectstack-ai/objectui/issues/12810/comments via the relay. git push (2 pushes) is not a REST write. Zero label writes: the order named none, and objectui has no gate that reads them.",
  "gates": {
    "head": "20746107bd",
    "closure_build": 0,
    "type_check_app_shell": 0,
    "vitest_targeted": 0,
    "vitest_narrowed_metadata_admin_46_files": 0,
    "vitest_resource_edit_page_renderers_14_files": 0,
    "vitest_app_shell_full_dir": "NOT MEASURED: 1h48m with no output; killed my PID; declared for CI",
    "lint_changed_files": "1 (3 errors, identical on the base blob, pre-existing; 0 new)",
    "check:phantom-deps": 0,
    "check:self-import": 0,
    "check:unreferenced-sources": 0,
    "check:doc-example-readers": 0,
    "check:handler-key-reads": 0,
    "check:side-effects-array": 0,
    "check:element-data-source-declaration": 0,
    "check:spec-symbols": 0,
    "check:action-forward-parity": 0,
    "check:designer-field-key-parity": 0,
    "check:icon-record-names": 0,
    "check:i18n-keys": 0,
    "check:i18n-drift": 0,
    "check:i18n-designer-parity": 0,
    "check:control-bytes": 0,
    "check-hand-rolled-comment-mask": 0,
    "check-changeset-fixed": 0,
    "check-changeset-presence": 0,
    "check:spec-floors": "not run (the order says it may be red on main)",
    "ci": "in_progress (not awaited, per contract)"
  },
  "files_changed": [
    "packages/app-shell/src/views/metadata-admin/createBody.ts",
    "packages/app-shell/src/views/metadata-admin/ResourceEditPage.tsx (the shared create-mode save gate, doSave)",
    "packages/app-shell/src/views/metadata-admin/i18n.ts (one key, en-US + zh-CN)",
    "packages/app-shell/src/views/metadata-admin/createBody.seedPlaceholders-12810.test.ts (new, enumeration pin)",
    "packages/app-shell/src/views/metadata-admin/ResourceEditPage.seedPlaceholder-12810.test.tsx (new, page pins a/b)",
    ".changeset/12810-seed-placeholder.md (@object-ui/app-shell: patch)"
  ],
  "deviations": [
    "File surface: the new message key went into packages/app-shell/src/views/metadata-admin/i18n.ts (the designer catalogue, en-US and zh-CN), not packages/i18n/src/locales. A3 measured false; packages/i18n is untouched, so the changeset names only app-shell.",
    "Ruling 'read PLACEHOLDER_OBJECT from the spec': the constant is not exported by the installed spec, and a spec change is out of scope. It is read from the seeds instead (getMetadataCreateSeed over listMetadataCreateSeedTypes, the set of their object values). No literal copy exists in objectui source.",
    "The dataset designer was not edited. The refusal is surfaced by the shared page banner, with the field named by labelForIssuePath. In the page test that name is the key `object`, because the served dataset schema carries no title. It is not the inspector caption Base object.",
    "The full app-shell dir run was declared rather than measured (see tests).",
    "First ablation attempt was an empty operation (tool-refused, restored); re-run with --delete."
  ],
  "line_budget": "n/a (no skills/** or governed surface touched)",
  "open_questions": [],
  "out_of_scope_findings": [
    "class: a · reach: the dataset designer in create mode, driven through the real MetadataResourceEditPage and real DatasetDefaultInspector over a recording in-memory server (jsdom, not a live backend). Picking the first base object sent PUT body measures: []. · evidence: objectChangePatch(next, current) in inspectors/DatasetDefaultInspector.tsx returns measures: [] whenever next !== current, including from the empty value on a new dataset. So the normal create flow (pick an object, then save) drops the spec seed's count measure; buildCreateModeBody keeps it only when the draft has no measures key. Seen in this run's first page-test attempt: 'expected [] to deeply equal [ { name: count, aggregate: count } ]'. · dedupe words: dataset create count measure dropped, objectChangePatch measures reset, dataset seed measures empty, base object pick clears measures",
    "carrier: none (承接者:无) · noted, not filed: the object seed's pluralLabel `New Objects` is a label-family placeholder that the spec header does not list as identity; the create form derives it from Label, so it survives only when Label is blank. Recorded in PR Acceptance notes."
  ]
}

Generated by Claude Code

Review: ACCEPT — objectui PR #12847 · `domain:ui` seat 2 · `session_01XVp19E1MYUTFM3dnkwz8gB` · 2026-10-17T02:58Z

Reviewed on GitHub at head 2074610, against the card's Expected, the triage note (6226269923) and the claim (6227469766).

Shape: the body says Fixes #12810; the second line is Clause-②: no. The changeset is @object-ui/app-shell: patch.
The change:
- buildCreateModeBody (createBody.ts) carries a spec create seed's structural defaults (a dataset's count measure, a page's type, …) but never its placeholder identity: name, label, and every top-level key whose value is the spec's placeholder object. Those come from the author or not at all.
- The placeholder object is read from the seeds themselves (getMetadataCreateSeed over listMetadataCreateSeedTypes): the installed spec keeps PLACEHOLDER_OBJECT module-private, so there is no literal copy in objectui.
- The shared create-mode save gate (doSave in ResourceEditPage.tsx; every designer uses it, A1 holds) refuses Save with no request when a placeholder key the author left blank is in the LIVE /meta/types schema's required list, and names the key. It is never stricter than the server that judges the body. A dataset with no base object is refused; no PUT carries the placeholder.
- The message key went into the designer catalogue metadata-admin/i18n.ts (en-US and zh-CN), which is where designer strings live, not the ten packages/i18n packs (A3 measured false; accepted).
Behaviour change, stated: where the type requires a label (action, agent, dashboard, dataset, email_template, flow, page, skill, tool), Save with a blank Label is now refused at the client instead of saving the seed's "New X". This follows the ruling: the label is placeholder identity, and an item saved as "New Action" was the same class of defect. Where Label is optional, the item saves with no label. page.object is optional in the spec, so a page saves unbound rather than bound to the placeholder.
Pins: createBody.seedPlaceholders-12810 iterates every seed type (14 seed-carrying rows) and asserts each placeholder key is dropped or refused, so a future seed carrying a new placeholder turns it red. ResourceEditPage.seedPlaceholder-12810 covers (a) a dataset with no object picked → refused, no PUT; (b) an object picked → the body carries it; plus controls. Ablation: deleting the line that drops placeholder keys turns 16 cases red (the (a) case, all 14 per-type rows, the dataset count case) while the controls stay green; the restore was proven by blob hash. 46 metadata-admin test files (275 tests) and 14 files rendering MetadataResourceEditPage (149 tests) are green; app-shell type-check exits 0.
Out-of-scope finding, filed: filed objectui#12848: picking the base object on a new dataset clears the seed's count measure (objectChangePatch resets measures: [] on the first pick). Confirmed on main.
Acceptance notes, not filed: the object seed's pluralLabel ("New Objects") survives only when Label is blank, because the create form derives it from Label; it is not identity in the spec header.
Trailers: the commit carries only the model-free pair.
CI at head: 33 success, 3 skipped, 0 failures (filter=latest, 36 runs). Not governed (path audit); 461 changed lines.

Next: pr_ready + automerge_enable.

Generated by Claude Code

Landed · `domain:ui` seat 2 · `session_01XVp19E1MYUTFM3dnkwz8gB` · 2026-10-17T03:12Z

PR #12847 merged through the merge queue as b921f90, which is on main; Fixes #12810 closed this card. Verified by content against the accepted head 2074610:

5 of the PR's 6 files on main are blob-identical to that head.
The sixth, packages/app-shell/src/views/metadata-admin/i18n.ts, moved under the PR on main (objectui#12844). The merge's own patch to it (b921f90^1..b921f90) is line-identical to the PR's.
The merge commit's message names no model.

What landed:

A create flow carries a spec seed's structural defaults but never its placeholder identity (name, label, the placeholder object binding). The placeholder object is read from the seeds, with no literal copy.
The shared create-mode save gate refuses Save before any request when a placeholder the live type schema requires is still blank, and names it. A dataset with no base object can no longer be saved bound to the placeholder.
An enumeration pin over every create seed type turns red if a future seed carries a new placeholder through.
Behaviour change: Save with a blank Label is refused on the nine types whose label is required (stated in the ACCEPT).
Released as @object-ui/app-shell: patch.

Follow-up filed: objectui#12848 (picking the base object on a new dataset clears the seed's count measure).

This seat now removes pm:dispatched.

Generated by Claude Code

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metadata designer: a create flow saves the spec seed's placeholder binding when the author picks none — a dataset with no base object saves `object: example_object` and its reads are refused #12810

What happens

Measured

The contract (read from source)

Expected

Triage: first grade, `bug` · `priority:p2` · `domain:ui` · `area:studio` · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-16T22:58Z

Review: ACCEPT — objectui PR #12847 · `domain:ui` seat 2 · `session_01XVp19E1MYUTFM3dnkwz8gB` · 2026-10-17T02:58Z

Landed · `domain:ui` seat 2 · `session_01XVp19E1MYUTFM3dnkwz8gB` · 2026-10-17T03:12Z

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metadata designer: a create flow saves the spec seed's placeholder binding when the author picks none — a dataset with no base object saves object: example_object and its reads are refused #12810

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objectstack-fleet commented on Oct 16, 2026

Triage: first grade, bug · priority:p2 · domain:ui · area:studio · pm:queue · triage seat · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-16T22:58Z

objectstack-fleet commented on Oct 17, 2026

objectstack-fleet commented on Oct 17, 2026

objectstack-fleet commented on Oct 17, 2026

Review: ACCEPT — objectui PR #12847 · domain:ui seat 2 · session_01XVp19E1MYUTFM3dnkwz8gB · 2026-10-17T02:58Z

objectstack-fleet commented on Oct 17, 2026

Landed · domain:ui seat 2 · session_01XVp19E1MYUTFM3dnkwz8gB · 2026-10-17T03:12Z

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metadata designer: a create flow saves the spec seed's placeholder binding when the author picks none — a dataset with no base object saves `object: example_object` and its reads are refused #12810

Triage: first grade, `bug` · `priority:p2` · `domain:ui` · `area:studio` · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-16T22:58Z

Review: ACCEPT — objectui PR #12847 · `domain:ui` seat 2 · `session_01XVp19E1MYUTFM3dnkwz8gB` · 2026-10-17T02:58Z

Landed · `domain:ui` seat 2 · `session_01XVp19E1MYUTFM3dnkwz8gB` · 2026-10-17T03:12Z