feat(chat): runtime clientData validation for custom agents - #4646
feat(chat): runtime clientData validation for custom agents#4646gtremper wants to merge 4 commits into
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository UI Review profile: CHILL Plan: Pro Plus Run ID: 📒 Files selected for processing (6)
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Included review availability: Your plan includes up to 10 reviews per rolling hour; 8 remain after this review. 📜 Recent review details🧰 Additional context used📓 Path-based instructions (6)packages/trigger-sdk/**/*.{ts,tsx}📄 CodeRabbit inference engine (.github/copilot-instructions.md)
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**/*.{ts,tsx}📄 CodeRabbit inference engine (.github/copilot-instructions.md)
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**/*.{ts,tsx,js,jsx}📄 CodeRabbit inference engine (.github/copilot-instructions.md)
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**/*.ts📄 CodeRabbit inference engine (.cursor/rules/otel-metrics.mdc)
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packages/trigger-sdk/**/*.{js,ts,jsx,tsx}📄 CodeRabbit inference engine (packages/trigger-sdk/CLAUDE.md)
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packages/**/*.{ts,tsx}📄 CodeRabbit inference engine (AGENTS.md)
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🧠 Learnings (13)📚 Learning: 2026-03-22T13:26:12.060ZApplied to files:
📚 Learning: 2026-03-22T19:24:14.403ZApplied to files:
📚 Learning: 2026-05-18T08:21:27.694ZApplied to files:
📚 Learning: 2026-05-18T08:21:27.694ZApplied to files:
📚 Learning: 2026-06-13T19:53:13.759ZApplied to files:
📚 Learning: 2026-06-17T17:13:49.929ZApplied to files:
📚 Learning: 2026-06-23T13:04:21.413ZApplied to files:
📚 Learning: 2026-03-31T21:37:27.212ZApplied to files:
📚 Learning: 2026-05-17T08:08:12.370ZApplied to files:
📚 Learning: 2026-05-18T14:19:56.437ZApplied to files:
📚 Learning: 2026-05-19T22:37:47.286ZApplied to files:
📚 Learning: 2026-06-04T18:16:35.386ZApplied to files:
📚 Learning: 2026-06-09T17:58:04.699ZApplied to files:
🔇 Additional comments (1)
WalkthroughThe SDK adds schema-based validation and parsing for custom-agent client data. Invalid initial and subsequent frames are excluded from agent code, with configurable validation-error reporting. Message APIs and subscriptions now validate metadata and preserve stream behavior. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Hi @gtremper, thanks for your interest in contributing! This project requires that pull request authors are vouched, and you are not in the list of vouched users. This PR will be closed automatically. See https://github.com/triggerdotdev/trigger.dev/blob/main/CONTRIBUTING.md for more details. |
gtremper
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🦋 Changeset detectedLatest commit: 881cd8e The changes in this PR will be included in the next version bump. This PR includes changesets to release 29 packages
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🧹 Nitpick comments (1)
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts (1)
539-542: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low valueDocument why a single microtask hop is required.
Both tests place
await Promise.resolve()betweenfirstDoneStarted.promiseandreleaseParser.resolve(). This encodes an assumption about how many microtask ticks the runtime needs to detach the subscription before the parse settles. If the detach path insubscribeToValidatedChatMessagesornext()gains or loses an await, the test exercises a different branch and the failure reason is not obvious.Add a short comment stating the ordering the hop establishes.
♻️ Proposed comment for the ordering requirement
releaseFirstTurn.resolve(); await firstDoneStarted.promise; + // Let `turn.done()` detach the subscription before the parse + // settles, so the frame lands in the after-off buffer path. await Promise.resolve(); releaseParser.resolve();Also applies to: 619-622
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docs/ai-chat/custom-agents.mdxpackages/trigger-sdk/src/v3/ai.tspackages/trigger-sdk/test/custom-agent-client-data-validation.test.ts
🚧 Files skipped from review as they are similar to previous changes (1)
- docs/ai-chat/custom-agents.mdx
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📓 Path-based instructions (8)
packages/trigger-sdk/**/*.{ts,tsx}
📄 CodeRabbit inference engine (.github/copilot-instructions.md)
In the Trigger.dev SDK (packages/trigger-sdk), prefer isomorphic code like fetch and ReadableStream instead of Node.js-specific code
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
**/*.{ts,tsx}
📄 CodeRabbit inference engine (.github/copilot-instructions.md)
**/*.{ts,tsx}: Use types over interfaces for TypeScript
Avoid using enums; prefer string unions or const objects instead
**/*.{ts,tsx}: Prefer static imports over dynamic imports. Only use dynamicimport()when:
- Circular dependencies cannot be resolved otherwise
- Code splitting is genuinely needed for performance
- The module must be loaded conditionally at runtime
Zod is pinned to a single version across the entire monorepo (currently3.25.76). When adding zod to a new or existing package, use the exact same version as the rest of the repo - never a different version or a range. Mismatched zod versions cause runtime type incompatibilities (e.g., schemas from one package can't be used as body validators in another).
Do not reintroduce V1.
Add crumbs as you write code — not just when debugging.
Do not invent new namespaces — pick from this table or ask first.
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
**/*.{ts,tsx,js,jsx}
📄 CodeRabbit inference engine (.github/copilot-instructions.md)
Use function declarations instead of default exports
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
**/*.{test,spec}.{ts,tsx}
📄 CodeRabbit inference engine (.github/copilot-instructions.md)
Use vitest for all tests in the Trigger.dev repository
We use vitest exclusively. Never mock anything - use testcontainers instead.
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts
**/*.ts
📄 CodeRabbit inference engine (.cursor/rules/otel-metrics.mdc)
**/*.ts: When creating or editing OTEL metrics (counters, histograms, gauges), ensure metric attributes have low cardinality by using only enums, booleans, bounded error codes, or bounded shard IDs
Do not use high-cardinality attributes in OTEL metrics such as UUIDs/IDs (envId, userId, runId, projectId, organizationId), unbounded integers (itemCount, batchSize, retryCount), timestamps (createdAt, startTime), or free-form strings (errorMessage, taskName, queueName)
When exporting OTEL metrics via OTLP to Prometheus, be aware that the exporter automatically adds unit suffixes to metric names (e.g., 'my_duration_ms' becomes 'my_duration_ms_milliseconds', 'my_counter' becomes 'my_counter_total'). Account for these transformations when writing Grafana dashboards or Prometheus queries
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
packages/trigger-sdk/**/*.{js,ts,jsx,tsx}
📄 CodeRabbit inference engine (packages/trigger-sdk/CLAUDE.md)
Always import from
@trigger.dev/sdk. Never use@trigger.dev/sdk/v3(deprecated path alias)
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
packages/**/*.{ts,tsx}
📄 CodeRabbit inference engine (AGENTS.md)
packages/**/*.{ts,tsx}: - Public packages (packages/*): Usebuild.
Always import from@trigger.dev/sdk. Never use@trigger.dev/sdk/v3or deprecatedclient.defineJob.
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
**/*.test.{ts,tsx}
📄 CodeRabbit inference engine (AGENTS.md)
Test files go next to source files (e.g.,
MyService.ts->MyService.test.ts).
Files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts
🧠 Learnings (17)
📚 Learning: 2026-03-22T13:26:12.060Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3244
File: apps/webapp/app/components/code/TextEditor.tsx:81-86
Timestamp: 2026-03-22T13:26:12.060Z
Learning: In the triggerdotdev/trigger.dev codebase, do not flag `navigator.clipboard.writeText(...)` calls for `missing-await`/`unhandled-promise` issues. These clipboard writes are intentionally invoked without `await` and without `catch` handlers across the project; keep that behavior consistent when reviewing TypeScript/TSX files (e.g., usages like in `apps/webapp/app/components/code/TextEditor.tsx`).
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-03-22T19:24:14.403Z
Learnt from: matt-aitken
Repo: triggerdotdev/trigger.dev PR: 3187
File: apps/webapp/app/v3/services/alerts/deliverErrorGroupAlert.server.ts:200-204
Timestamp: 2026-03-22T19:24:14.403Z
Learning: In the triggerdotdev/trigger.dev codebase, webhook URLs are not expected to contain embedded credentials/secrets (e.g., fields like `ProjectAlertWebhookProperties` should only hold credential-free webhook endpoints). During code review, if you see logging or inclusion of raw webhook URLs in error messages, do not automatically treat it as a credential-leak/secrets-in-logs issue by default—first verify the URL does not contain embedded credentials (for example, no username/password in the URL, no obvious secret/token query params or fragments). If the URL is credential-free per this project’s conventions, allow the logging.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-05-18T08:21:27.694Z
Learnt from: d-cs
Repo: triggerdotdev/trigger.dev PR: 3632
File: apps/webapp/sentry.server.ts:4-21
Timestamp: 2026-05-18T08:21:27.694Z
Learning: When handling Prisma error P1001 ("Can't reach database server") in TypeScript, don’t assume a single error shape. Prisma can surface P1001 via two different error classes/fields: `PrismaClientKnownRequestError` exposes it as `err.code === "P1001"` (common during mid-query connection drops), while `PrismaClientInitializationError` exposes it as `err.errorCode === "P1001"` (common on client startup failure). Therefore, predicates should use `err.code === "P1001" || err.errorCode === "P1001"`. Do not flag `err.code === "P1001"` as “unreachable/never matches,” as it is expected in production.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-05-18T08:21:27.694Z
Learnt from: d-cs
Repo: triggerdotdev/trigger.dev PR: 3632
File: apps/webapp/sentry.server.ts:4-21
Timestamp: 2026-05-18T08:21:27.694Z
Learning: When handling Prisma errors for P1001 ("Can't reach database server"), do not assume it only appears under a single property name. Prisma may surface P1001 via either `PrismaClientKnownRequestError` (`err.code === "P1001"`, e.g., mid-query connection drops) or `PrismaClientInitializationError` (`err.errorCode === "P1001"`, e.g., client startup connection failure). To reliably detect the condition, check `err.code === "P1001" || err.errorCode === "P1001"`, and avoid review rules that would incorrectly flag `err.code === "P1001"` as unreachable/never-matching.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-06-13T19:53:13.759Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3937
File: packages/trigger-sdk/skills/realtime-and-frontend/SKILL.md:258-260
Timestamp: 2026-06-13T19:53:13.759Z
Learning: When reviewing code that uses `trigger.dev/react-hooks`’s `useRealtimeRun`, preserve the call signature where the first argument is the full realtime handle object (not `handle.id`). This is intentional to maintain type-safety and is consistent with the official docs; do not suggest changing the first argument from the handle object to `handle.id`.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-06-17T17:13:49.929Z
Learnt from: matt-aitken
Repo: triggerdotdev/trigger.dev PR: 3948
File: apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.bulk-actions.$bulkActionParam/route.tsx:48-62
Timestamp: 2026-06-17T17:13:49.929Z
Learning: In triggerdotdev/trigger.dev, within `dashboardLoader`/`dashboardAction` (or similar context resolver code) whenever you resolve an organization ID from an organization slug for RBAC/enterprise authorization scope, always read from the primary Prisma client (`prisma`), not `$replica`. Using `$replica` can hit replica-lag and cause the RBAC lookup/authorization to run without the correct org scope (bypassing intended role enforcement). Implement the slug→org lookup with `prisma.organization.findFirst(...)` (or equivalent primary-client query) and add an inline comment documenting why the primary client is required (replica lag could lead to unscoped RBAC checks).
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-06-23T13:04:21.413Z
Learnt from: carderne
Repo: triggerdotdev/trigger.dev PR: 4023
File: apps/webapp/app/services/upsertBranch.server.ts:14-18
Timestamp: 2026-06-23T13:04:21.413Z
Learning: In TypeScript, it’s valid to `import { type X }` and then use `typeof X` in a type-only position, e.g. `type Alias = z.infer<typeof X>`. The `type` modifier suppresses the runtime import, but the type checker still has the full exported type so `z.infer<typeof X>` can resolve correctly. In code reviews, don’t flag this as a TypeScript compile error as long as `typeof X` is used in a type context (e.g., with `z.infer`, `type` aliases, generics), not as a runtime value.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-05-18T14:40:02.173Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3658
File: packages/core/src/v3/realtimeStreams/manager.test.ts:1-147
Timestamp: 2026-05-18T14:40:02.173Z
Learning: In this repo’s trigger.dev codebase, the “never mock — use testcontainers” guideline should only be applied to integration tests that talk to real external services (e.g., Redis, Postgres, S2). For unit tests that validate in-memory logic (e.g., deduplication/cache behavior in StandardRealtimeStreamsManager and similar module-boundary call counting), it is allowed to use Vitest mocks like `vi.fn()` and to stub/mock `ApiClient` objects to count calls or simulate in-process collaborators. Do not flag `vi.fn()`-based mocks as policy violations in these unit-test scenarios; reserve the rule for true external-service integration tests.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts
📚 Learning: 2026-05-18T14:40:02.173Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3658
File: packages/core/src/v3/realtimeStreams/manager.test.ts:1-147
Timestamp: 2026-05-18T14:40:02.173Z
Learning: In the triggerdotdev/trigger.dev repo, the policy “Never mock anything — use testcontainers instead” should only be enforced for integration tests that interact with real external services (e.g., Redis, Postgres) via actual infrastructure. For unit tests that exercise pure in-memory logic (e.g., cache semantics) it is OK to stub collaborators such as `ApiClient` using Vitest (`vi.fn()`) to assert call counts or control behavior. Do not flag `vi.fn()`-based `ApiClient` stubs in unit tests as violations of the testcontainers policy.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts
📚 Learning: 2026-05-19T22:37:47.286Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3671
File: packages/trigger-sdk/test/recovery-boot.test.ts:456-457
Timestamp: 2026-05-19T22:37:47.286Z
Learning: In `packages/trigger-sdk` (Trigger.dev SDK), `logger.warn` (and other SDK logger methods) should route to the Trigger.dev structured logger sink, not to `console.warn`. In SDK tests, `vi.spyOn(console, "warn")` (or similar console spies) should only be used to suppress stray console output; reviewers should not suggest asserting on `console.warn` spies to verify SDK-internal warning/fallback log behavior. Use the SDK’s structured-logger outputs/capture approach instead of console spies.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-06-04T18:16:35.386Z
Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 3836
File: apps/supervisor/src/backpressure/backpressureMonitor.ts:3-5
Timestamp: 2026-06-04T18:16:35.386Z
Learning: When reviewing TypeScript in this repo, apply the rule “prefer type aliases over interfaces” only to data/object shapes and union/intersection type modeling. If an interface is being used as a behavioral contract for collaborators to implement (e.g., method-shape interfaces that define required behavior, such as `BackpressureLogger` / `BackpressureSignalSource` in `apps/supervisor/src/backpressure/backpressureMonitor.ts`), keep it as an `interface` and do not flag it as a type-alias-vs-interface violation.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-06-09T17:58:04.699Z
Learnt from: 0ski
Repo: triggerdotdev/trigger.dev PR: 3879
File: apps/webapp/app/models/vercelIntegration.server.ts:619-630
Timestamp: 2026-06-09T17:58:04.699Z
Learning: In this codebase, outbound raw `fetch` calls should typically rely on Node/undici’s default request timeout (about ~300s) rather than adding a per-call `AbortController` + `setTimeout` wrapper inside individual functions (e.g. in files like `apps/webapp/app/models/vercelIntegration.server.ts`). During code review, do not flag the absence of a per-call timeout on a single `fetch` as an issue; if per-call timeouts are needed, they should be implemented via a codebase-wide convention (e.g., a shared fetch wrapper or documented pattern) rather than ad-hoc per-function changes.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.tspackages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-06-16T09:19:47.637Z
Learnt from: d-cs
Repo: triggerdotdev/trigger.dev PR: 3960
File: apps/webapp/test/prismaInfrastructureErrorCapture.test.ts:0-0
Timestamp: 2026-06-16T09:19:47.637Z
Learning: In this repo’s Vitest setup, `vitest.config.ts` uses `globals: true`, so identifiers like `vi`, `describe`, `it`, and `expect` are available as globals in Vitest test files. During code review, do not flag missing `vi`/`describe`/`it`/`expect` imports as a runtime error or correctness issue when they’re used in `*.test.ts/tsx` or `*.spec.ts/tsx` files. Explicit imports are still preferred for consistency, but they’re not required for runtime behavior.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts
📚 Learning: 2026-08-16T18:36:58.179Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 4537
File: packages/trigger-sdk/test/normalizeKeyString.test.ts:1-2
Timestamp: 2026-08-16T18:36:58.179Z
Learning: For related SDK `chat.agent` tests in the Trigger.dev repository—including chat channels, handover, snapshot, and transport-event coverage—keep new test files under `packages/trigger-sdk/test/` rather than colocating them with the `packages/trigger-sdk/src/v3/` source files.
Applied to files:
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts
📚 Learning: 2026-03-31T21:37:27.212Z
Learnt from: isshaddad
Repo: triggerdotdev/trigger.dev PR: 3283
File: docs/migration-n8n.mdx:19-21
Timestamp: 2026-03-31T21:37:27.212Z
Learning: When reviewing code in `packages/trigger-sdk/src/v3`, treat `tasks.triggerAndWait()` and `tasks.batchTriggerAndWait()` as real exported APIs. They are defined in `shared.ts` and re-exported via the `tasks` object in `tasks.ts`, and they take the task ID string as their first argument (not a task instance). This is distinct from the instance methods `yourTask.triggerAndWait()` and `yourTask.batchTriggerAndWait()`. Do not flag calls to `tasks.triggerAndWait()` or `tasks.batchTriggerAndWait()` as non-existent or incorrectly invoked.
Applied to files:
packages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-05-17T08:08:12.370Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3644
File: packages/trigger-sdk/src/v3/ai.ts:8695-8746
Timestamp: 2026-05-17T08:08:12.370Z
Learning: In the Trigger v3 session resume/streams logic, ensure session resumption uses sequence cursors rather than timestamps. Specifically: for each turn-complete control record written to `session.out`, include a `session-in-event-id` header whose value is the committed-consume cursor (`session.in.lastDispatchedSeqNum`). On boot/resume, scan `session.out` for the latest turn-complete record, read the `session-in-event-id` header, and seed the `sessionStreams` manager for `.in` using both `lastSeqNum` and `lastDispatchedSeqNum` so previously processed user messages are not replayed. Do not use `setMinTimestamp`/`lastOutTimestamp` for resume ordering in this flow.
Applied to files:
packages/trigger-sdk/src/v3/ai.ts
📚 Learning: 2026-05-18T14:19:56.437Z
Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3655
File: packages/trigger-sdk/src/v3/ai.ts:8667-8731
Timestamp: 2026-05-18T14:19:56.437Z
Learning: In the Trigger SDK (v3) when making raw `fetch` calls to the Trigger API (including override paths such as `createChatStartSessionAction`), set the request headers to match `ApiClient`: `Content-Type`, `Authorization`, and `x-trigger-source: "sdk"`. Also forward the current preview branch by setting `x-trigger-branch` to `apiClientManager.branchName`. Prefer using the shared `overrideRequestHeaders(accessToken)` helper instead of manually constructing headers, so requests route correctly to preview environments.
Applied to files:
packages/trigger-sdk/src/v3/ai.ts
🔇 Additional comments (13)
packages/trigger-sdk/src/v3/ai.ts (8)
1456-1465: LGTM!Also applies to: 1467-1503
1505-1556: LGTM!Also applies to: 1558-1589
1723-1741: LGTM!Also applies to: 1743-1790, 1792-1799
1817-1825: LGTM!Also applies to: 1853-1855, 1868-1876, 1891-1897
5589-5617: LGTM!
5627-5631: LGTM!Also applies to: 5658-5669, 5682-5752
9821-9829: LGTM!Also applies to: 9928-9931, 10036-10036, 10091-10091, 10223-10227
9959-9975: LGTM!Also applies to: 10048-10074, 10121-10187, 10404-10404
packages/trigger-sdk/test/custom-agent-client-data-validation.test.ts (5)
8-14: LGTM!Also applies to: 16-22, 24-31
145-150: LGTM!Also applies to: 159-161, 178-219
304-311: LGTM!Also applies to: 321-341, 352-366
368-412: LGTM!
681-688: LGTM!Also applies to: 702-706, 722-761
| onAfterOff?: (payload: ChatTaskWirePayload) => unknown; | ||
| onInvalidAfterOff?: (payload: ChatTaskWirePayload, error: unknown) => unknown; | ||
| } = {} | ||
| ): ChatMessageSubscription { | ||
| let active = true; | ||
| let delivery = Promise.resolve(); | ||
| const subscription = subscribeToRawChatMessages((payload) => { | ||
| delivery = delivery | ||
| .then(async () => { | ||
| const result = await parseChatCustomAgentPayload(payload); | ||
| if (!result.ok) { | ||
| if (active) { | ||
| // Completing the turn here could close an active response. | ||
| await reportChatCustomAgentClientDataError(payload, result.error, { | ||
| writeToStream: false, | ||
| }); | ||
| } else if (options.onInvalidAfterOff) { | ||
| await options.onInvalidAfterOff(payload, result.error); | ||
| } else { | ||
| // The subscription was removed while parsing. Keep the failure | ||
| // observable without invoking a user callback after off(). | ||
| await reportChatCustomAgentClientDataError(payload, result.error, { | ||
| writeToStream: false, | ||
| callHandler: false, | ||
| }); | ||
| } | ||
| return; | ||
| } | ||
| if (active) { | ||
| await handler(result.payload, () => active); | ||
| } else { | ||
| await options.onAfterOff?.(result.payload); | ||
| } |
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🔍 chat.messages.on deliveries are now serialized behind the schema parse chain
With a clientDataSchema configured, chat.messages.on() no longer invokes the user handler concurrently per frame. Every frame goes through a single delivery promise chain (packages/trigger-sdk/src/v3/ai.ts:1751-1781), and the chain awaits the user handler itself (await handler(result.payload, ...)). This gives the wire-order guarantee the PR wants, but it also means a long-running or never-resolving on() handler (e.g. one that runs a whole turn, or awaits an abort signal) now blocks delivery of all subsequent messages, whereas the previous void Promise.resolve(handler(...)) fired each frame independently. Hand-rolled loops that relied on concurrent handler invocation will behave differently only when a schema is declared, which makes the difference easy to miss.
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Summary
chat.withClientData({ schema }).customAgent()now parsespayload.metadatabefore passing it torun,chat.messages, orchat.createSession. Schema defaults and transforms are preserved.Custom agents without a schema keep the existing pass-through behavior. This does not change
chat.agent(). Raw custom agents do not expose an action schema, sopayload.actionremainsunknown.Validation failures
Invalid client data is logged and never passed to user code. The client receives a fixed
Invalid client dataerror; validator details stay in the task log andonClientDataValidationError.turn-complete, then wait for the next valid frame. This settles the invalid input before the raw read returns. Callers that need to coordinate validation with their own persistence or settlement should omit the schema and validate the full frame in their loop.onClientDataValidationErrorand wait without writing a terminal frame.chat.messages.on()subscriptions skip invalid frames and callonClientDataValidationErrorwithout ending the response.off()stops new frames. A valid frame accepted beforeoff()finishes validation and is delivered; an invalid pending frame is logged without invoking user callbacks.chat.messages.peek()throws synchronously.turn-complete, and ends the run.Validation is automatic when a schema is declared. We can make it opt-in or return a typed failure if maintainers prefer that contract.
Testing
pnpm --filter @trigger.dev/sdk run test -- --runpnpm --filter @trigger.dev/sdk run typecheckpnpm run build --filter @trigger.dev/sdkpnpm run lint✅ Checklist
Changelog
Custom chat agents now validate and parse client data declared with
chat.withClientData({ schema })before passing it to agent code.Screenshots
Not applicable.