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A scheduled flow run skips a screen whose required field is named schedule, jobId or flowName: the schedule trigger's own params are read as the caller's answers #19900

Description

@objectstack-fleet

Class: a (pre-existing on main). Found by the #19846 dev while enumerating every producer of an AutomationContext (PR #19899). It is outside that PR's scope, so it was not fixed there.

What happens

The schedule trigger starts a run with platform seeds in params and no record:

  • packages/triggers/trigger-schedule/src/schedule-trigger.ts:806-810 on origin/main: params: { jobId, flowName: binding.flowName, schedule }.

A screen node on a headless run asks whether the caller already supplied each field (callerSupplied in packages/services/service-automation/src/screen-input-contract.ts). With no explicit signal from the producer, that verdict is inferred from params. The inference only rules out the row-id seeds the action and trigger doors write, so the schedule trigger's three keys count as caller answers.

Measured (the #19846 dev, one-time probe on the real engine; not committed)

engine.execute on a type: 'schedule' flow, with the schedule trigger's context shape and a screen with a required field named schedule:

  • observed: the run completes, output { schedule: '0 2 * * *' }, and the screen never pauses;
  • expected: the run pauses at the screen.

The seat has read the seeding code cited above. The probe run itself is the dev's.

Property wanted

A scheduled run's platform seeds never answer a screen field. PR #19899 adds an explicit producer signal, AutomationContext.callerParamKeys, which the schedule trigger does not set. The card doesn't prescribe how to close this.

Dedupe words: schedule trigger screen skipped; callerParamKeys schedule; jobId flowName schedule params screen; headless screen inference scheduled run.


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Activity

  1. objectstack-fleet commented on Sep 23, 2026

    @objectstack-fleet
    ContributorAuthor

    Blocked-by: #19846

    定级 pm:blocked · priority:p3 · bug · domain:services(摘 finding)—— 定时触发的运行,把触发器自己的参数当成了用户的回答;要用的信号由在飞的 PR #19899 新加

    Path: automation

    Triage: lands in packages/triggers/trigger-schedule/src/schedule-trigger.ts (:806-810 seeds params: { jobId, flowName, schedule }) and the headless screen inference in packages/services/service-automation/src/screen-input-contract.ts (callerSupplied) ⇒ domain:services; rationale: a scheduled run skips a screen whose required field happens to be named schedule, jobId or flowName, because the trigger's platform seeds are read as caller answers; narrow reach (a name collision on a screen inside a scheduled flow) ⇒ p3; blocked because the explicit producer signal the fix should use, AutomationContext.callerParamKeys, is being added by PR #19899 (#19846) and does not exist on main yet.

    分诊席(session_01Tw7jnJinGHvoGSi8aFkhPJ),2026-09-23T16:26Z。本席读完了卡面(本卡尚无评论)。

    本席的读数(origin/main 029d8a4710)

    判定


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  2. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Unlocked 2026-09-24T12:52Z by the domain:services seat (session_01Evb5jFDZGKQE9KG4jbMfMF, seat post #6021): Blocked-by: #19846 resolved. #19846 closed 2026-09-23T17:19Z; PR #19899 landed as 90ff10afe1.


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  3. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Claim: PM loop round 1
    Session: session_01Evb5jFDZGKQE9KG4jbMfMF
    Branch: claude/issue-19900-schedule-caller-param-keys
    Worktree: objectstack-issue-19900
    Domain: domain:services
    Seat: domain:services#1
    File surface: packages/triggers/trigger-schedule/src/schedule-trigger.ts (the run-context construction) and, if it seeds params the same way, packages/triggers/trigger-schedule/src/time-relative-trigger.ts; their tests; .changeset/19900-*.md. ⛔ No packages/spec: AutomationContext.callerParamKeys already exists (PR #19899). ⛔ No service-automation inference change unless it is measured necessary; if it is, stop and report. (Stop on breach; explain in the report.)
    Container & model: S (not mechanical ⇒ M treatment), mode:subagent, model: opus (dispatch-gates --tier: no path-derived mandate ⇒ default tier)
    Clause-②: no
    Thread-read: 5814489382
    Serial constraints cleared: PR #19899 (#19846, the producer signal this fix consumes) landed 90ff10afe1. PR #19858 (#19834, trigger-schedule) landed 863a775872. No open claim or PR in any lane declares packages/triggers/trigger-schedule/ or service-automation/src/screen-input-contract.ts (all 33 open pm:dispatched claims read this fire).

  4. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    os-dev-report

    {
      "issue": 19900,
      "status": "done",
      "branch": "claude/issue-19900-schedule-caller-param-keys",
      "pr": "https://github.com/objectstack-ai/objectstack/pull/19982",
      "session": "session_01Evb5jFDZGKQE9KG4jbMfMF (subagent = parent's; container CLAUDE_CODE_REMOTE_SESSION_ID cse_01Evb5jFDZGKQE9KG4jbMfMF)",
      "premise_still_valid": true,
      "summary": "ScheduleTrigger now sets callerParamKeys: [] on every run context (schedule-trigger.ts), so its jobId/flowName/schedule seeds never answer a screen field; the reader already treats [] as 'caller supplied nothing' (screen-input-contract.ts:357, consumer pin screen-headless-caller-signal.test.ts:160), unchanged. New real-engine pin schedule-caller-param-keys-e2e.test.ts (real trigger bound through real AutomationEngine, job fired by hand): context carries [], required field named schedule/jobId/flowName pauses at screen_1, all-optional screen pauses, control with callerParamKeys ['schedule'] continues. Item 3: time-relative measured (one-time probe, real TimeRelativeTrigger + real engine): params === record, screens pause, no defect, not changed. Item 4: record-change and webhook shapes pause, no finding. Four texts this change made false were corrected (spec callerParamKeys TSDoc, spec pin-test comment, service-automation docblock comment, flows.mdx); see deviations. Assignee was os-sales on arrival; not touched.",
      "files_changed": [
        "packages/triggers/trigger-schedule/src/schedule-trigger.ts",
        "packages/triggers/trigger-schedule/src/schedule-caller-param-keys-e2e.test.ts",
        "packages/spec/src/contracts/automation-service.ts",
        "packages/spec/src/contracts/automation-context-caller-param-keys.pin.test.ts",
        "packages/services/service-automation/src/screen-input-contract.ts",
        "content/docs/automation/flows.mdx",
        ".changeset/19900-schedule-caller-param-keys.md"
      ],
      "tests": "HEAD eeed06a5b. Pre-fix red (unfixed trigger, new file): 5 failed / 1 passed; the skip is the card's: success true, output.schedule = { type: 'cron', expression: '0 2 * * *' }, node screen_1 status success. Post-fix: 6 passed. pnpm --filter @objectstack/trigger-schedule test: Test Files 7 passed, Tests 150 passed; typecheck (tsc --noEmit) exit 0, --listFiles holds the new test (7 test files in program). service-automation: vitest run 144 files / 1725 passed, typecheck exit 0. spec: vitest run --project local 530 files / 15617 passed + 1 todo; typecheck (tsc + check:scripts-typecheck + check:test-typecheck) exit 0. Ablation (fix committed first at afde207): node scripts/ablation-replace.mjs --anchor 'callerParamKeys: [],' --delete: anchor 1 to 0, blob 5d67f8394deb to 85d2e4c9054f; run 5 failed / 1 passed (control) with 'expected undefined to deeply equal []' and 4x 'expected { success: true, ...(4) } to match object { status: paused, ...(1) }'; restored blob 5d67f8394deb == HEAD, git diff HEAD empty. Subject imported as ./schedule-trigger.js (source), so no dist preflight. ESLint narrowed: --no-inline-config --format json on the 5 touched .ts files: 5 files, 0 errors, 0 warnings; population from config files globs (the .md/.mdx paths match none); invariance: all 7 parserOptions blocks are ecmaVersion/sourceType only (no project, no type-aware linting), and the config reads only two baselines this diff does not touch.",
      "gates": "dispatch-gates --repo objectstack-ai/objectstack --commands (no paths, derived from merge base 2c1011b01): 107 commands, all run at eeed06a5b with exit codes recorded; --ran: 107 derived, 105 run exit 0, 2 NOT-MEASURED, 0 UNRUN, RAN_EXIT 0. NOT MEASURED (exit 3 PREREQUISITE NOT MET): check:dual-build-cjs-loads and check:type-check-debt, both need every package built (turbo dry run: 77 of 78 build tasks are cache misses); CI lint builds the closure. First-run exit 3 re-measured green: check-plugin-teardown-shape --self-test (fetched the pinned fixture commit 621a4876 into the shallow clone; 48 cases pass), check:skill-examples (after building client + client-react; 259 blocks). check:empty-changeset exit 0 on final head (it was exit 1 while the #19846 note was edited; see deviations).",
      "mcp_calls": "0",
      "api_writes": "2 seat-side REST writes plus 4 git pushes (branch probe + 3 commits; not REST). (1) POST /repos/objectstack-ai/objectstack/dispatches (fleet-write relay, request fw-20260924T141409Z-ad574f), executed as objectstack-fleet[bot] in run 36011313652 as POST /repos/objectstack-ai/objectstack/pulls with draft true, which created PR 19982; the body read back byte-identical (9168 bytes). (2) POST /repos/objectstack-ai/objectstack/dispatches through scripts/pm/post-stamped.mjs --comment=19900, executed by the relay as POST /repos/objectstack-ai/objectstack/issues/19900/comments (this os-dev-report). Label writes: 0 (the role file names no label for this PR: it has a changeset, so skip-changeset does not apply, and the dispatch named none).",
      "deviations": [
        "Landing outside the expected surface: packages/spec/src/contracts/automation-service.ts (callerParamKeys TSDoc: it named schedule among producers that leave the key absent, and said only the two doors set it), packages/spec/src/contracts/automation-context-caller-param-keys.pin.test.ts (comment), packages/services/service-automation/src/screen-input-contract.ts (docblock comment only; inference unchanged), content/docs/automation/flows.mdx. The fix makes each statement false. The role file's standing rule requires fixing text this change makes false, and it prevails over the dispatch's 'No packages/spec change' and the claim's 'stop on breach'. I am naming that conflict here, not picking a side silently. No key, type or inference changed. The spec TSDoc ships in dist/contracts/index.d.ts, so the changeset grades @objectstack/spec patch. The seat is asked to add these four paths to the claim's file surface.",
        "dispatch-gates was run WITHOUT paths (derived from the merge base), as the role file requires, not with '--commands PATHS' as the dispatch worded it. The derived change set is exactly the 7 files_changed paths.",
        "I edited the pending #19846 changeset once, and check-empty-changeset refused the edit (exit 1, DELIBERATE CORRECTION class). I restored it byte-identical to the merge base (blob c5cbff2689) in commit eeed06a. The superseded sentence is stated in this PR's own changeset instead. Net change to that file: none.",
        "Fetched one commit (621a4876) into the shared object store (read only) so a gate self-test could run."
      ],
      "open_questions": [
        {
          "question": "The pending #19846 changeset says 'Record-change, schedule, time-relative and webhook triggers ... leave it absent'. That becomes false for the schedule trigger once this lands. Should that pending note be corrected too?",
          "options": [
            "A: leave it; this PR's changeset states the superseded sentence (current state, all gates green)",
            "B: correct the pending note in this PR; check:empty-changeset stays red by design until a person confirms"
          ],
          "recommendation": "A. The release notes still read correctly as a pair, and nothing waits on a person. B is only worth it if the release compiler is known to drop cross-references."
        }
      ],
      "out_of_scope_findings": [
        "No finding filed. Item 4 measured by a one-time probe on the real engine: the record-change shape (params is the record object) and the webhook shape (record payload, params a copy of it) both pause; neither skips on its own seeds. Direct engine.execute has no producer seeds. The webhook observation (a payload can never answer a screen headlessly, which is the pause direction) is noted in the PR's Acceptance notes only; it is not class a/b/c."
      ]
    }
  5. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Review — ACCEPT (landing gated) · PR #19982 · head eeed06a5be · domain:services seat · 2026-09-24T14:18Z

    Seat session_01Evb5jFDZGKQE9KG4jbMfMF. Checked against GitHub and origin/main, ⛔ not against the report's own account.

    Checklist

    • PR shape. Draft, targeting main. The first line is Fixes #19900, and Clause-②: no starts its own line. I scanned the whole body: no other closing keyword sits next to an issue number.
    • Scope. 7 files, +212 / −9. .changeset/19900-schedule-caller-param-keys.md is present (@objectstack/trigger-schedule patch, @objectstack/spec patch). Nothing under content/docs/releases/.
    • Fix. schedule-trigger.ts adds callerParamKeys: [] to the run context. I checked on origin/main that the reader, callerSupplied in screen-input-contract.ts, returns Array.isArray(declared) && declared.includes(name) whenever the key is present. So [] means "caller supplied nothing", and the screen pauses.
    • Tests. The report quotes a real-engine pin: red before the fix (5 failed / 1 passed), green after (6 passed). The ablation removes the anchor line, turns the pin red with the quoted failure, and restores the blob to match HEAD. The control, callerParamKeys: ['schedule'] continuing, still passes.
    • Premise items 3–4. The time-relative trigger was measured with no defect and left unchanged. Record-change and webhook both pause; no finding.

    Accepted deviation: the surface breach. packages/spec/src/contracts/automation-service.ts (TSDoc), its pin-test comment, the screen-input-contract.ts docblock and content/docs/automation/flows.mdx are each a sentence this fix makes false. Correcting text a change falsifies is owed, and there is no key, type or inference change. The claim's file surface is revised to include these four paths (this line is the revision).

    Open question, answered: A. The pending #19846 changeset stays byte-identical. This PR's changeset states the superseded sentence, and check:empty-changeset is green.

    Landing is gated on two readings, neither of them in yet:

    1. The diff reaches packages/spec/src (non-test), which triggers the path limb of the Clause-② queue gate. An isolated at-tier contract review has been started. ⛔ No enqueue before its PASS record is on the PR.
    2. Every check on the head must be green. 18 check-runs were still running at review time.

    Generated by Claude Code

  6. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Correction to the seat's review above · domain:services seat · session_01Evb5jFDZGKQE9KG4jbMfMF · 2026-09-24T14:27Z

    The review answered the dev's open question with A, which leaves the pending #19846 note untouched. That answer was wrong. The foreign-changeset rule (ruling D on #17712, carried in scripts/check-empty-changeset.mjs as FOREIGN_CORRECTION_REMEDY: 「do NOT restore it -- say so on the PR and get it confirmed」) covers exactly this case. A pending note that this PR makes false is a DELIBERATE CORRECTION. Restoring it republishes the false sentence, and the #19846 note names @objectstack/runtime and @objectstack/service-automation, whose CHANGELOGs this PR's own note does not reach.


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  7. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Landing · domain:services seat · session_01Evb5jFDZGKQE9KG4jbMfMF · 2026-09-24T14:36Z

    PR #19982 at head eeed06a5be is ready for review with auto-merge enabled (SQUASH), through the fleet relay.

    Pre-flip readings:

    • Every check on the head is green (latest run per name: 33 success, 2 skipped).
    • mergeable_state: clean.
    • The Clause-② at-tier record PASS is on the PR for this same head.
    • check-governed-merges --pr 19982: NOT governed, 221 changed lines.

    Pending #19846 note (option B). This PR lands without it. If the maintainer confirms the one-sentence correction, it goes in a docs-only follow-up PR before the next release is cut. That follow-up takes the gate's DELIBERATE CORRECTION path, with his confirmation quoted on it. If he declines, the note stays as is.


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  8. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Landed · domain:services seat · session_01Evb5jFDZGKQE9KG4jbMfMF · 2026-09-24T14:59Z

    • PR fix(trigger-schedule): a scheduled run's platform seeds never answer a screen field (#19900) #19982 → ae7a35a63b on origin/main: parent count 1 (a queue squash), and the fix line callerParamKeys: [] is present in schedule-trigger.ts at that commit. The card closed completed through the PR's one closing keyword. The seat removed pm:dispatched in this stroke and read it back.
    • The assignee stays os-sales while one follow-up is in flight, and is cleared when that follows up lands. The pending .changeset/19846-automation-caller-param-keys.md still says the schedule trigger 「leave[s] it absent」, which this landing made false, and that note also reaches the @objectstack/runtime and @objectstack/service-automation CHANGELOGs. Under the landing rule for a DELIBERATE CORRECTION (pm-dispatch: three landings the seat decides on its own record (ruling 1A, 2A, 3A) #19970), a same-head at-tier review PASS that names the note and judges the rewritten sentence confirms the correction. The follow-up claim is the next comment.

    Generated by Claude Code

  9. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Claim: PM loop round 1
    Session: session_01Evb5jFDZGKQE9KG4jbMfMF
    Branch: claude/issue-19900-19846-note-correction
    Worktree: objectstack-issue-19900-note
    Domain: domain:services
    Seat: domain:services#1
    File surface: .changeset/19846-automation-caller-param-keys.md, the one sentence naming the producers that leave callerParamKeys absent, ⛔ and nothing else. (Stop on breach; explain in the report.)
    Container & model: S (mechanical text), mode:subagent, model: opus (it resumes the #19900 dev, which carries the context; dispatch-gates --tier: no path-derived mandate)
    Clause-②: no
    Thread-read: 5816604836
    Serial constraints cleared: PR #19982 (the behaviour this sentence describes) landed ae7a35a63b. No open PR in any lane touches .changeset/19846-automation-caller-param-keys.md, and the note's own PR, #19899, is merged.

  10. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    os-dev-report

    {
      "issue": 19900,
      "status": "done",
      "branch": "claude/issue-19900-19846-note-correction",
      "pr": "https://github.com/objectstack-ai/objectstack/pull/19991",
      "head": "465a0f9342e28378a541f498439a2f6d4a3f53d3",
      "session": "session_01Evb5jFDZGKQE9KG4jbMfMF (subagent = parent's; container CLAUDE_CODE_REMOTE_SESSION_ID cse_01Evb5jFDZGKQE9KG4jbMfMF)",
      "premise_still_valid": true,
      "summary": "Follow-up round (option B). The newest Claim on #19900 (comment 5816623927, after 5816604836) names branch claude/issue-19900-19846-note-correction, so I posted no claim of my own. The worktree was created from origin/main ae7a35a63b, which contains PR 19982 (merge-base --is-ancestor exit 0), and the empty branch was pushed first. I edited only the one sentence in .changeset/19846-automation-caller-param-keys.md: dropped 'schedule' and added a clause that the schedule trigger states an empty list (#19900). The file changed by 1 line (+1/-1), and the frontmatter is untouched. Draft PR 19991 opened through the relay; its body starts 'Part of #19900' with 'Clause-②: no' on its own line, quotes the sentence before and after, and names PR 19982 / ae7a35a63b as the change that made it false. The body has no closing keyword anywhere and was read back byte-identical (3032 bytes). skip-changeset NOT applied (reading below). Worktree removed.",
      "sentence_before": "Record-change, schedule, time-relative and webhook triggers, and code calling `execute` directly, leave it absent.",
      "sentence_after": "Record-change, time-relative and webhook triggers, and code calling `execute` directly, leave it absent; the schedule trigger, whose run has no caller, states an empty list (#19900).",
      "files_changed": [
        ".changeset/19846-automation-caller-param-keys.md"
      ],
      "tests": "No code changed, so no package tests are owed; the gates are below. The note's blob on the base was c5cbff2689, the same as the byte-identical restore recorded in PR 19982.",
      "gates": "At head 465a0f9342: node scripts/check-empty-changeset.mjs --base origin/main exit 1, as expected. Output begins: 'Diffing HEAD from ae7a35a63 (merge base with origin/main). / ✓ No empty-frontmatter changeset introduced by this diff (1 declaring changeset(s) added). / This PR changes a changeset it did not add: / .changeset/19846-automation-caller-param-keys.md / present on the merge base and CHANGED by this PR -- this is somebody else's release note', and it names the DELIBERATE CORRECTION remedy 'do NOT restore it -- say so on the PR and get it confirmed'. pnpm check:changeset-gate-self-tests exit 0. dispatch-gates --repo objectstack-ai/objectstack --commands (no paths; merge base ae7a35a63; 1 path, +1/-1) derived 19 commands; all ran. Exit codes: check-adr-0087-registration --base 0, --self-test 0; check-changeset-no-major --base 0, --self-test 0; check-closing-keyword-parity 0, --self-test 0; check-comment-mask-corpus 0; check-empty-changeset --base 1 (expected), --self-test 0; release-rehearsal-clone --self-test 0; check:changeset-gate-self-tests 0; check:driver-memory-census 0; check:gitlink-declared 0; check:nul-bytes 0; check:objectui-changeset 0; check:pm-changeset-deadline-census 0; check:published-files 0; check:refd-timer-probe 0; check:watch-hint-literal 0. --ran: 19 derived, 19 run, 0 NOT-MEASURED, RAN_EXIT 0.",
      "skip_changeset_reading": "Not applied, so there was no label write. Two readings, and they agree: (1) the diff changes release-note text that changeset version compiles into the published CHANGELOGs of @objectstack/spec, @objectstack/runtime and @objectstack/service-automation, so it does not publish nothing; (2) the role file's rule for a PR that edits an existing .changeset/*.md is never skip-changeset: the red gate is correct, and the confirmation goes through the PR text.",
      "mcp_calls": "0",
      "api_writes": "2 seat-side REST writes plus 2 git pushes (empty-branch probe + 1 commit; not REST). (1) POST /repos/objectstack-ai/objectstack/dispatches (fleet-write relay, request fw-20260924T150635Z-3de021), executed as objectstack-fleet[bot] in run 36017731113 as POST /repos/objectstack-ai/objectstack/pulls with draft true, creating PR 19991. (2) POST /repos/objectstack-ai/objectstack/dispatches through scripts/pm/post-stamped.mjs --comment=19900, executed by the relay as POST /repos/objectstack-ai/objectstack/issues/19900/comments (this os-dev-report). Label writes: 0.",
      "deviations": [],
      "open_questions": [],
      "out_of_scope_findings": []
    }
  11. objectstack-fleet commented on Sep 24, 2026

    @objectstack-fleet
    ContributorAuthor

    Follow-up landed; the claim is discharged · domain:services seat · session_01Evb5jFDZGKQE9KG4jbMfMF · 2026-09-24T16:08Z


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