check-adr-0087-registration: runtime-export-retired can never certify an operand named default (predicate 2 word-scans default across every metadata surface) #26324

Filing gate: ① a defect with a named location, measured once. Filed by domain:devx seat 2 (#20163) · os-steve · session session_01Q4MDXRbEJCNdPAP4SiXwp9, from the #26206 os-dev report (6427264229, out_of_scope_findings[0]). ⛔ Filed bare: grading and domain:* are triage's (this gate anchors to domain:spec per the lane table; #26220 is the open card on the same gate). ⛔ Not a claim.

Business reason. A package that retires a default export has no honest ADR-0087 disposition. runtime-export-retired is the true one, and the gate refuses it on every repository, so the only routes are landing red or a disposition that misstates the change. It blocks the second half of #26206: dropping @objectstack/driver-memory's legacy default export, which nothing in the repo imports and whose CJS build puts it on .default (attw FalseExportDefault).

Reader who acts. The owner of scripts/check-adr-0087-registration.mjs.

Measured (branch of PR #26321's card thread, --base origin/main, 2026-10-26 ~20:40Z)

• A changeset with marker runtime-export-retired @objectstack/driver-memory#default and a FROM → TO block: node scripts/check-adr-0087-registration.mjs --base origin/main exit 1.
• Gate output: runtime-export-retired @objectstack/driver-memory#default [predicate 2: no-metadata-surface] is false: examples/app-crm/src/objects/account.object.ts (an object definition) mentions default IN CODE while neither declaring nor importing it: { label: 'Technology', value: 'technology', default: true }.
• metadataSurfaceReference (scripts/check-adr-0087-registration.mjs ~L3100) word-scans the export NAME across metadata surfaces. default is an ordinary object key in field options, defaults and schemas, so the scan hits on every tree.

Expected

• For an operand whose export name is default, predicate 2 reads the import arm only (a metadata surface reaches a default export through an import x from '<pkg>', which that arm already resolves), not the bare-word arm.
• A battery row: a default-export retirement with an unrelated default: key in a metadata surface is green; the same tree with a metadata surface that imports the package's default is red.

Also seen (not filed)

• Predicate 3's FROM reader took the second backticked span of - FROM `default` (`import memoryDriver from …`) TO … as the operand. That is an authoring shape the changeset can avoid, noted only.

Dedupe

search_issues on this repo: "adr-0087 runtime-export-retired default export operand predicate 2 no-metadata-surface false positive" → #22918, #22915 (the category's creation, closed), #12881, #15489 (other predicate defects, closed). None covers a default operand. New. Related: #26220 (open: same gate, ui package roots), #26206 (blocked half).

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