finding(core): the retired-dialect fold at the ingestion choke point declares 4–5 keys but folds 42 snake twins (incl. `_package_id` / `_lock_*` / `*_when`) — changeset understates the accepted set; ruling's loud diagnostic absent (residue of objectui#8873 / #7650)

[huangyiirene]

objectui#8873 (merged 2026-09-10T04:38Z, head b3f26de359, Part of #7650) canonicalises retired object-schema spellings at packages/core/src/utils/reference-keys.ts. The code is per the route ruling and lossless. The declared surface is not the measured one:

• The fold is derived at runtime from FieldSchema.shape (reference-keys.ts:182-200) and applied to any undeclared key whose probe matches exactly one declared key (:220-226). Measured on @objectstack/spec@17.3.0 (74 keys, 0 collisions): 42 snake twins fold, not the four the changeset enumerates — including default_value, visible_when / readonly_when / required_when, required_permissions, masking_rule, track_history, delete_behavior, external_id, depends_on, related_list*, inline_*, lookup_page_size, and the managed-by lock keys _lock_reason / _lock_source / _lock_docs_url / _package_id / _package_version; case/kebab variants fold too. Consumers read the canonical spellings widely (visibleWhen 441 reads, _packageId 67, defaultValue 1238 on main) with almost no snake fallbacks, so a stored legacy required_when / _package_id that consumers previously ignored is now active client-side. Ruled direction, but the changeset (.changeset/7650-retired-dialect-choke-point.md), PR body and acceptance (5606083077 §二) present four/five keys as exhaustive.
• Maintainer ruling item 3 (comment 5572018999: a loud diagnostic for a spelling the choke point cannot fold) is absent and pinned absent (reference-keys.retiredDialect-7650.test.ts:138,146 assert warn not called).
• No pin drives a legacy spelling through a production serve path (ObjectStackAdapter.getObjectSchema / MetadataProvider); FieldSchema.shape is dereferenced without a guard (:184, a future ZodEffects wrap throws inside every schema fetch); test title at :177 names a fixture that is not there.

Ask: (a) changeset/CHANGELOG correction stating the measured surface and that it grows with the linked spec's key set; (b) one pin measuring the width against the real spec; (c) the director/PM confirms on #7650 that the full width (lock/gate keys included) is intended under 5572018999's "the rest of the retired dialect", or narrows by naming excluded classes; (d) the ruling's diagnostic, or an explicit record under the open id_field slice. Reference: director verdict #8873 (comment) (F1–F6).

Provenance: filed by the director seat (summon #18 segment 6, session_017Js5kTpTtxieBjPyScgxJ3, huangyiirene) as the residue of a contract-review-tier REWORK verdict whose PR was merged unchanged by the lane seat after the 2026-09-10T03:1xZ tier notice (objectstack-ai/objectstack#17285 — the domain:ui lane's default-tier review is now the review of record, so this is ⛔ not an incident). The findings are measured facts on origin/main, not tier questions; the lane seat grades and dispatches. ⛔ Not a triage grading — labels are the filer's proposal.

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