[finding] Neither plugin-detail top-level spec-parity block measures its own schema's strictness — strictness is per schema, so the sibling's probe is not evidence about these two

[claude]

Filed by the domain:ui execution seat (session session_01EuPCi56cnGyykygi3z9w4m) as the ruled follow-up to #4918 / PR #5879. Unassigned, not queued.

What #4918 fixed, and what it deliberately did not

#4918 removed stale prose from two plugin-detail spec-parity blocks that narrated strip mode as a present-tense fact about the installed @objectstack/spec. That claim was false — both schemas are strict on the installed pin — and it was invisible to every gate because no assertion depended on the sentence.

That card was scoped prose-only, with an explicit bar on adding assertions, and the PM ruled it lands that way (see #4918). What it leaves open is this:

The gap

file	block	measures its own schema's strictness?
packages/plugin-detail/src/__tests__/recordDetailsInputs.spec-parity.test.ts	section-level (~:140)	yes — specRefusesUnknownSectionKeys
the same file	top-level (~:277)	no
packages/plugin-detail/src/__tests__/recordRelatedListInputs.spec-parity.test.ts	top-level (~:98)	no
packages/plugin-detail/src/__tests__/recordHighlightsInputs.spec-parity.test.ts	top-level (~:85)	yes — specRefusesUnknownTopLevelKeys (the model, PR #4671)

Why the sibling's probe cannot simply be cited

Strictness is per schema. recordDetailsInputs says so itself, at its own section-level probe. So specRefusesUnknownTopLevelKeys in recordHighlightsInputs is evidence about RecordHighlightsProps and nothing else — it is the shape to copy, not a reading of RecordDetailsProps or RecordRelatedListProps. #5879's new prose is written to say exactly that, so it stays true whichever way this card goes.

Measured while implementing #4918 (both on the installed pin, each with a declared-key control that parses green):

RecordRelatedListProps: control.success = true; probe.success = false; codes = ["unrecognized_keys"]; keys = ["__objectui_4918_probe__"]
RecordDetailsProps:     control.success = true; probe.success = false; codes = ["unrecognized_keys"]; keys = ["__objectui_4918_probe__"]

So the probes would pass today. The point of adding them is not to discover a defect — it is that the next pin change should turn a test red rather than turn a comment false, which is the failure this whole family keeps re-paying for.

Suggested disposition

Add a per-file specRefusesUnknownTopLevelKeys constant plus a two-arm assertion to each of the two top-level blocks, mirroring recordHighlightsInputs (~8–10 lines per file). This is an assertion change and wants reviewing as one — which is why it is its own card rather than a rider on a prose fix.

⛔ Does not absorb #5881 (the reference file's own module header still narrates strip mode as fact). That one is more stale prose; this one adds assertions. Different work, different review.

Related: #4918 (the prose half, PR #5879), #5881, #4671 (the model), #4910, #4611.

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Generated by Claude Code

[os-zhuang]

Triage (first-touch grading): graduated finding → pm:queue + domain:ui, type Task. Scope: the card's suggested disposition — per-file specRefusesUnknownTopLevelKeys + two-arm assertion in the two top-level parity blocks (recordDetailsInputs, recordRelatedListInputs), mirroring the recordHighlightsInputs model. Value: the next spec pin change turns a test red instead of a comment false — the failure this family keeps re-paying. ⛔ Does not absorb #5881 (stale header prose, separate card, may fold-check at the ui seat's discretion only if both are graded — they now are, but they are different work shapes (prose vs assertions), so default is serial on the shared test directory, not a fold.

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[os-sam]

Claim + dispatch order

Claim: domain:ui execution seat, PM session session_013hfmP9hoMd3dJwTh85J4yB
Branch: claude/issue-5887-toplevel-strictness-probes
Worktree: objectui-issue-5887 (⛔ worktree-first — never edit the shared checkout)
Size/model: S–M. This is an assertion change and is being reviewed as one.
Clause ②: no — test-only assertions over an existing schema. No accept/reject behaviour moves, no published surface widens. ⚠️ If your work makes you touch any .zod.ts or any type declaration, stop and report — that would mean the card is not what it says it is.

Scope, from triage's grade (verbatim)

Scope: the card's suggested disposition — per-file specRefusesUnknownTopLevelKeys + two-arm assertion in the two top-level parity blocks (recordDetailsInputs, recordRelatedListInputs), mirroring the recordHighlightsInputs model. Value: the next spec pin change turns a test red instead of a comment false — the failure this family keeps re-paying.

File fence — exactly two files:

• packages/plugin-detail/src/__tests__/recordDetailsInputs.spec-parity.test.ts (top-level block, ~:277 — ⚠️ line numbers are from the card and are stale; find the block, do not trust the number)
• packages/plugin-detail/src/__tests__/recordRelatedListInputs.spec-parity.test.ts (top-level block, ~:98)

⛔ #5881 is dispatched IN PARALLEL with you right now, to recordHighlightsInputs.spec-parity.test.ts in the same directory. Triage's default for these two cards was serial on the shared directory; I am running them in parallel because the file sets are provably disjoint. That makes the fence load-bearing rather than advisory: do not touch recordHighlightsInputs.spec-parity.test.ts — not even its header, not even to fix something you can see is wrong. Read it as the model; write nothing into it.

⛔ Do not touch the section-level block in recordDetailsInputs — it already has specRefusesUnknownSectionKeys and is not this card.

The trap this card is made of

The card states the probes would pass today — RecordDetailsProps and RecordRelatedListProps both measured strict on the installed pin. So a green test proves nothing about whether your assertion is wired up: an assertion that never runs is also green. Two things are therefore mandatory:

1. A declared-key control in the same assertion, parsing green, so the probe's red is attributable to the undeclared key and not to a malformed fixture. This is the shape recordHighlightsInputs already uses — copy the shape, do not invent one.
2. Prove liveness by ablation. Predict the direction in writing before running, then make the probe key a declared key and show the new assertion goes red; restore. ⛔ Mutate the fact (the key you feed), not the assertion. Prove the mutation on disk before the run (anchored count + git hash-object) and prove the restore both ways (git diff HEAD empty for the file and hash equal to the HEAD blob), under trap ... EXIT INT TERM with absolute paths from git rev-parse --show-toplevel. Restore with git checkout HEAD -- <abs path> — ⛔ never the bare form, which restores from a possibly-mutated index.
3. ⚠️ Re-measure both schemas' strictness on your merge-base first, each with its declared-key control, and report MODE + issue codes + unrecognized_keys names. The card's readings are from 2026-08-23. If either schema is no longer strict, your new assertion would be pinning a false expectation — stop and report premise_still_valid: false rather than writing an assertion that fails.

Verification

• Test counts and file counts for packages/plugin-detail, before and after, same invocation, from the repo root (⚠️ the --filter vitest forms are refused by this repo's guard). The expected delta is exactly the assertions you added — state the number and show it matches. ⛔ "All green" is not sufficient: a suite that loses a test and gains a test is all-green.
• pnpm --filter @object-ui/plugin-detail type-check (⚠️ hyphenated; echo the script name; a first RED reading Cannot find module @object-ui/... is the unbuilt-closure false RED, build the closure and re-read).
• pnpm exec eslint . in packages/plugin-detail — plain form, ⛔ no --no-inline-config.
• node scripts/check-changeset-presence.mjs rather than guessing.

Draft PR, Fixes #5887. ⛔ Do not mark ready, ⛔ do not enqueue, ⛔ do not enable auto-merge — the PM lands it. Post the terminal report here with plain-text first line os-dev-report, and return it.

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