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Studio Data › Actions: switching what an action does (or its Type) leaves an invalid draft that blocks every later save of the object with no message; Body Shape is a free-text box that writes an invalid value #26736
Description
Filing gate: ① product defect, reproduced, landing site named.
Batch-of: studio-qa-2026-10-27 — 39 cards from one Studio QA run (coordinator session session_01J8VVAkZns5rNnK2rtszzbQ; tested at 3fcafcd3; origin/main was 43731031 at filing, so the implementer re-checks the landing site on current main). The run record is the qa-run issue filed with this batch.
Symptom
After a kind switch every subsequent object autosave is refused 422 and the UI shows nothing; a reload reverts the action. Typing the documented {wrap} form into Body Shape also bricks saves.
Reproduction
- What it does → "Run a script" → saves
body: {language}withoutsource→ 422actions.N.body.source. - Type a body, then Type → API →
bodyis kept → 422 "bodyonly runs fortype: 'script'"; all following endpoint/method edits are refused; reload reverts to "Update fields" (three attempts oncall_api). - Body Shape: type
{"wrap":"payload"}→ 422actions.N.bodyShapeinvalid_union, later saves fail until reload; a stored{wrap:"payload"}displays as "payload" and would re-save as an invalid string.
Expected
A kind/type switch drops keys the new kind does not accept and holds incomplete required keys; a refused save is shown at the action; Body Shape is a Flat / Wrap(key) control.
Suspected landing site (the implementer verifies)
ActionDefaultInspector.tsx kind/type switch and the bodyShape control.
Filing facts
- reach: Studio UI, measured by the data gap-fill card.
- Business reason: The editor silently stops saving the whole object; builders lose subsequent work.
- Reader who acts: the triage seat (first touch: domain, area, level), then that lane's
os-devimplementer. QA suggestion only:domain:ui,area:studio, p2. - Dedupe: semantic search
switching action type in Studio leaves invalid draft body only runs for type script, bodyShape text input invalid_unionon objectstack-ai/objectstack → 5 hits, all closed (objectui:bodyShapeis read by the console apiHandler but forwarded by ZERO action renderers — a declaredwrapis silently dropped #6938 bodyShape renderer forwarding, action.body 的 type 门是 declared ≠ enforced —— spec 说只在 type:'script' 生效,runtime 有 body 就绑 #4352 runtime gate; none about the Studio switch). - QA id: G4
Activity
objectstack-fleet commentedon Oct 27, 2026
Triage: first grade —
priority:p1·domain:ui·area:studio·pm:queue(findingremoved) · triage seat ·session_01AavokzJ5DndAwitDXvKy4U· 2026-10-27T16:15Z⛔ Not a claim, ⛔ not a dispatch.
aiExposedkey the spec refuses — every later save of the object answers 422 until reload, unticking does not recover #26728, so one PR may take both. From the studio-qa-2026-10-27 batch. Re-check the landing site on currentmain.Generated by Claude Code
objectstack-fleet commentedon Oct 27, 2026
Claim: PM loop round 1
Session:
session_01QsR2jTfvjNTaR29ehLk26TAccount:
zhuangjianguoBranch:
claude/project-thread-kfmx2w(platform-assigned card-thread branch; a card thread can push only its assigned branch, and the name carries no issue number, so this claim is the identity record)Worktree:
objectstack-issue-26736Domain:
domain:uiSeat:
domain:ui#4File surface:
ui/packages/app-shell/src/views/metadata-admin/inspectors/ActionDefaultInspector.tsx, the metadata-admin autosave refusal surface it reports through,ui/packages/i18n/src/namespaces/studio/en.tsandzh.ts, tests beside, one root changeset (one PR with #26728); ⛔packages/spec/**, server packages, any new key (stop on breach; explain in the report)Container & model:
M,mode:thread,model: TIER_DEFAULT(dispatch-gates --tier: no path-derived mandate; reason: the maintainer's standing rule 「只认领不需要 fable 的卡」, 2026-10-27T10:39Z),effort: highClause-②: no
Metadata-protocol: none
Responsibility: the Studio action inspector (app-shell, this lane) keeps keys a new action kind refuses and writes Body Shape as free text, so every later object save answers 422 with no message · the platform path that may cover it: the schema's own refusal, which the editor neither shows nor recovers from · reached by every builder who switches an action's kind or Type
Thread-read: 6447207372
Premise: holds (
git grep -c bodyShape origin/main -- ui/packages/app-shell/src/views/metadata-admin/inspectors/ActionDefaultInspector.tsx→ 2 (one free-text control) on origin/mainc8583f80at 2026-10-27T16:51Z)Serial constraints cleared: no open PR touches the surface (scan of the 80 most recently updated open PRs 2026-10-27T16:51Z)
Dispatched at 2026-10-27T16:56Z to the card thread on that branch; the order lives in the thread's opening message.
Generated by Claude Code
objectstack-fleet commentedon Oct 27, 2026
Claim amendment · domain:ui#4 · 2026-10-27T17:03Z
Thread-read: none
The card thread (
claude/project-thread-kfmx2w, one PR with #26728) named the autosave refusal surface the order left open, and one bounded in-place fix the change makes necessary.File surface:
ui/packages/app-shell/src/views/metadata-admin/inspectors/ActionDefaultInspector.tsx; the refusal surfaceui/packages/app-shell/src/views/studio-design/metadataError.ts(action hold judge,actions.Nlocator),studio-design/StudioDesignSurface.tsx(the Data pillar's "Show me" routes action targets, about 20 lines) andObjectActionsPanel.tsx(a focus prop, about 15 lines);metadata-admin/previews/ActionPreview.tsx(its AI pill readsai.exposed, not the flataiExposed, 3 lines) with its two test fixtures (automationPreviews.i18n-10862.test.tsx,inspectorStrings.hookAction.i18n-10586.test.tsx) moved toai: { exposed };ui/packages/i18n/src/namespaces/studio/en.tsandzh.ts; tests beside; one root changeset; ⛔packages/spec/**, server packages, any new key (stop on breach)Clause-②: no
Metadata-protocol: none
Serial: #26737 (
claude/project-thread-51d5nn) also editsStudioDesignSurface.tsx, in the flow designer's config fold, a different region. Whichever PR lands second merges main.