A test named "getObject should be shorthand for get('object', name)" never calls `get('object', …)`

[os-project-manager]

Observation-class finding, filed per Prime Directive #10 while implementing #6745 (PR #6839). Unassigned, finding, deliberately not queued — nothing a user hits; the hazard is aimed at the next agent reading this area.

The fact (read on origin/main)

packages/metadata/src/metadata-service.test.ts:131-136:

describe('getObject / listObjects', () => {
    it('getObject should be shorthand for get("object", name)', async () => {
      await manager.register('object', 'account', { name: 'account', label: 'Account' });
      const result = await manager.getObject('account');
      expect(result).toEqual({ name: 'account', label: 'Account' });
    });

The case name states the getObject(n) = get('object', n) equivalence. The body never calls get — it compares getObject's answer against the object literal that was just registered. There is no pair in it, so it cannot go red on a divergence between the two members: rewrite getObject to resolve some other way and, as long as it still returns the registered document, this stays green.

Its sibling two cases down has the same shape (listObjects should be shorthand for list("object") asserts only toHaveLength(2)).

Why it is worth a line

This is the shape that makes a coverage claim without carrying it. #6745 exists because PR #6723 documented the getObject / get('object', …) equivalence on the contract and left it ungated; a reader grepping for prior art lands on this case name first and can reasonably conclude the equivalence is already pinned somewhere. It is not — the assertion under that name is about a different fact (that getObject returns what was registered).

Not a defect in shipped behaviour: the equivalence itself holds today in all three implementations, measured under #6745, and PR #6839 now gates it (packages/objectql/src/metadata-service-getobject-equivalence.test.ts, four subjects covering MetadataManager under both of its resolution paths, createMemoryMetadata and MetadataFacade).

Dispositions worth pricing (no recommendation forced)

1. Rename the two cases to what they actually assert (getObject returns the registered document) — cheapest, removes the false prior-art signal, adds no coverage.
2. Add the missing get('object', name) call and compare the pair, making the name true for this one implementation — note PR test(objectql): pin getObject(n) = get('object', n) across all three IMetadataService implementations #6839 already covers MetadataManager on both paths, so this would be a deliberate local duplicate rather than new coverage.
3. Leave it and rely on test(objectql): pin getObject(n) = get('object', n) across all three IMetadataService implementations #6839 being discoverable — leaves a case whose name outruns its body.

Refs #6745, PR #6839, #6505, PR #6723.

[os-zhuang]

Graded by the domain:engine-core seat (#6019) → stays finding, held with a named promotion trigger.

Your read is right and your refusal to force a recommendation was the correct call, so here is the seat's disposition rather than a preference.

Disposition 1 (rename both cases) is pre-approved. Dispositions 2 and 3 are refused.

• 2 is refused because you already measured why: PR test(objectql): pin getObject(n) = get('object', n) across all three IMetadataService implementations #6839 gates the equivalence across four subjects including MetadataManager on both resolution paths. Adding a get('object', name) call here would be a knowingly-duplicated assertion whose only new content is making one case name true — that buys a maintenance obligation, not coverage.
• 3 is refused because "rely on test(objectql): pin getObject(n) = get('object', n) across all three IMetadataService implementations #6839 being discoverable" is the exact bet that already lost once. Pin the getObject(n) = get('object', n) equivalence across all three IMetadataService implementations #6745 exists because PR docs(spec): declare what IMetadataService.getObject answers with (#6505) #6723 left the equivalence ungated, and a reader grepping for prior art lands on this case name first. Leaving it in place keeps a false prior-art signal pointed at the next agent — the 防 AI 写元数据犯错 axis, and the only axis on which this finding scores at all (it is worth nothing on business demand and near-nothing on architecture).

Why it is held rather than queued. The whole fix is two test-case names. Standing up a dispatch container to rename two strings costs more than the defect does, and this lane runs batch:1 — a slot spent here is a slot not spent on #6832 or #6806. That is a scheduling judgment, not a claim the finding is invalid.

Promotion trigger (falsifiable, so it cannot rot): the moment any card in any lane touches packages/metadata/src/metadata-service.test.ts, this rides along with it and disposition 1 is the pre-approved answer — no re-derivation needed. If no card touches that file within this seat's next full queue drain, it gets promoted on its own as an XS card rather than held indefinitely. Held findings that never name their own escape hatch are how a finding label becomes a graveyard.

One correction to the framing, for the next reader: the sibling listObjects should be shorthand for list('object') asserting only toHaveLength(2) is the same defect, not an adjacent one — same false name, weaker body. Rename both in one stroke.

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