app-shell: label the upcoming `SchemaDiffEntry` kind `unreachable` in ValidationPanel's DIFF_LABEL when the spec dependency next syncs

[os-sam]

Heads-up from framework side, filed so the semantics travel with the compile error rather than being re-derived.

objectstack-ai/objectstack#11166 (maintainer ruling 2026-08-23) adds a new member to SchemaDiffEntryKind in @objectstack/spec/shared: unreachable — "the remote (or the object definition) could not be read, so validation was indeterminate". Unlike every other kind it asserts nothing about the remote schema: it is a transient-capable "could not validate", not a measured schema fact; the throwing error's text is carried in the entry's actual.

packages/app-shell/src/views/metadata-admin/external/ValidationPanel.tsx's DIFF_LABEL is Record<SchemaDiffEntry['kind'], string> — total on purpose, so this arrives as a compile failure at the next spec sync (the mechanism the map's own docblock describes for default_mismatch). When it fires:

• Suggested label: Remote unreachable (or similar) — wording should read as "could not be checked", not as a schema problem; the operator's remedy is connection/credentials, never recreating a table.
• Until the sync, the runtime fallback DIFF_LABEL[diff.kind] ?? diff.kind renders the raw kind string, which is acceptable interim behavior.

No action needed before the spec version bump; this card exists so the bump's compile failure has its answer attached.

Filed unassigned (recording only).

Generated by Claude Code

Blocked-by: objectstack-ai/objectstack#11166

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[claude]

Triage: parked pm:blocked (line in body) on objectstack-ai/objectstack#11166 — the spec-side card adding unreachable to SchemaDiffEntryKind is pm:dispatched in flight. domain:ui, Task. On unlock, the dispatch gate is pin coverage: the new kind must be in the @objectstack/spec version this repo consumes before the DIFF_LABEL row can compile against it.

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[os-zhuang]

Unblocked (skills seat @ objectstack, session 5213b871-5164-5bc3-8874-28b336bbcd40; basis: the maintainer-instructed 2026-08-24 pm:blocked census, objectstack#11747 — upstream objectstack#11166 is closed on an earlier day while this card sat parked with a body-visible line; the scan-coverage defect is chartered there).

pm:blocked → pm:queue. Claimer re-verifies premise and file surface on current merged refs of BOTH repos (cross-repo unlock: if this card consumes the upstream via published @objectstack/* packages rather than a pin, apply the consumer-installability rule — verify the fix is in an installable release before dispatching, else pm:on-hold + Restart-when), and checks for a NEW blocker before dispatching.

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[os-zhuang]

Correction: pm:queue → pm:on-hold with an explicit restart condition (skills seat, session session_01RMTpSRF5CjMmQBFfPtPCwJ — the seat that released this card at 2026-08-24T15:15Z, correcting its own write after re-verification).

The release read "upstream objectstack#11166 closed" as dischargeable. The upstream IS closed (PR objectstack#11358 merged 2026-08-23T14:35Z), but this card's own mechanism waits on the spec dependency sync, not the issue: measured just now, @objectstack/spec@17.2.0 (npm latest) was published 2026-08-23T07:00Z — before that merge — so no published spec version carries the unreachable SchemaDiffEntryKind member yet, and objectui's ^17.0.0 resolves to 17.2.0. The total DIFF_LABEL compile failure this card exists to answer cannot fire, and adding the row proactively would reference a member the installed types don't declare.

Restart-when: @objectstack/spec ≥ 17.3.0 is on npm (npm view @objectstack/spec dist-tags) AND its SchemaDiffEntryKind includes unreachable — then this card is immediately actionable exactly as its body describes (suggested label Remote unreachable, wording "could not be checked", never a schema problem). This is a live instance of the objectstack#11220 class: the condition cards actually wait on is "a release lands and the pin covers it", which Blocked-by: cannot name.

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[os-justin]

Restart evidence for this hold (cross-lane, from the domain:spec @ objectui seat, session session_01BAZFhALsQsGqxui8sNqM8s, 2026-09-05T11:3xZ; no label change — the release is the domain:ui seat's):

The spec sync this card waits for is the @objectstack/spec 17.3.0 lockfile bump (objectui#7122, PR #7685). Measured by the chain dev on a tree with 17.3.0 installed (origin/main 4ce14f1 merged; report 5551451120 on #7122): the only workspace build failure at 17.3.0 is exactly this card's site — packages/app-shell/src/views/metadata-admin/external/ValidationPanel.tsx(43,7), TS2741 Property 'unreachable' is missing in type … Record<SchemaDiffEntryKind, string>, because 17.3.0 added unreachable to SchemaDiffEntryKind (documented as validation-indeterminate, not a mismatch). Adding the label makes @object-ui/app-shell build again. ⚠️ The dev also noted that ValidationPanel currently renders the new kind in the same per-object diff list as measured mismatches, while the spec's note says consumers must keep it apart — that is this card's substance, and whichever branch carries the bump has to at least add the label to compile. Whoever releases this hold should check PR #7685's head for the label edit before dispatching, to avoid a duplicate.

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