docs: heartbeats, Bun version, troubleshooting, and preview-branch cleanup #3026
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WalkthroughAdds a new documentation page for task heartbeats and inserts it into docs navigation. Adds a “Preview branches” GitHub Actions section (including a YAML example) to the GitHub Actions docs and clarifies that automatic archiving on PR close requires the workflow to include the Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes 🚥 Pre-merge checks | ✅ 2 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (2 passed)
✏️ Tip: You can configure your own custom pre-merge checks in the settings. ✨ Finishing touches🧪 Generate unit tests (beta)
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🧰 Additional context used🧠 Learnings (7)📚 Learning: 2025-11-27T16:27:35.304ZApplied to files:
📚 Learning: 2025-11-27T16:27:35.304ZApplied to files:
📚 Learning: 2025-11-27T16:27:35.304ZApplied to files:
📚 Learning: 2025-11-27T16:27:35.304ZApplied to files:
📚 Learning: 2026-01-15T11:50:06.067ZApplied to files:
📚 Learning: 2025-11-27T16:27:35.304ZApplied to files:
📚 Learning: 2025-11-27T16:27:35.304ZApplied to files:
🔇 Additional comments (3)
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Actionable comments posted: 1
🤖 Fix all issues with AI agents
In `@docs/runs/heartbeats.mdx`:
- Around line 11-28: The example in processLargeDataset calls process(row)
before awaiting heartbeats.yield(), which is inconsistent with the
troubleshooting guide and can block sending a heartbeat before CPU-heavy work;
change the order in the run function to await heartbeats.yield() before doing
the synchronous work and rename the helper function process to avoid shadowing
the Node.js global (e.g., processRow) and update all references
(processLargeDataset, run, and the helper function name) accordingly.
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📒 Files selected for processing (6)
docs/deployment/preview-branches.mdxdocs/docs.jsondocs/github-actions.mdxdocs/guides/frameworks/bun.mdxdocs/runs/heartbeats.mdxdocs/troubleshooting.mdx
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**/*.{js,ts,jsx,tsx,json,md,yaml,yml}
📄 CodeRabbit inference engine (AGENTS.md)
Format code using Prettier before committing
Files:
docs/docs.json
🧠 Learnings (24)
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Provide Public Access Token via cookies, query parameters, or server-side token generation for frontend Trigger.dev access
Applied to files:
docs/github-actions.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Run `npx trigger.devlatest init` to initialize a Trigger.dev project
Applied to files:
docs/github-actions.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Use `TriggerAuthContext` provider to supply Public Access Token to Trigger.dev React hooks
Applied to files:
docs/github-actions.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Run `npx trigger.devlatest dev` to start the Trigger.dev development server
Applied to files:
docs/github-actions.mdx
📚 Learning: 2025-08-14T10:35:38.344Z
Learnt from: myftija
Repo: triggerdotdev/trigger.dev PR: 2391
File: packages/cli-v3/src/commands/login.ts:99-0
Timestamp: 2025-08-14T10:35:38.344Z
Learning: Organization access tokens (OATs) can be used for CLI deployments via TRIGGER_ACCESS_TOKEN environment variable, functioning similarly to personal access tokens (PATs) for this use case.
Applied to files:
docs/github-actions.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger.config.ts : Use build extensions in trigger.config.ts (additionalFiles, additionalPackages, aptGet, prismaExtension, etc.) to customize the build
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger.config.ts : Configure build process in trigger.config.ts using `build` object with external packages, extensions, and JSX settings
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Specify machine resources using the `machine` property with preset options like 'large-1x'
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2026-01-15T11:50:06.067Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: CLAUDE.md:0-0
Timestamp: 2026-01-15T11:50:06.067Z
Learning: Applies to **/*.{ts,tsx} : Every Trigger.dev task must be exported and have a unique `id` property with no timeouts in the run function
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `yourTask.batchTriggerAndWait()` to batch trigger tasks and wait for all results from a parent task
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `batch.triggerByTaskAndWait()` to batch trigger tasks by passing task instances and wait for results
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `yourTask.triggerAndWait()` to trigger a task and wait for its result from a parent task
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `batch.triggerAndWait()` to batch trigger multiple different tasks and wait for results
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `yourTask.batchTrigger()` to trigger multiple runs of a task from inside another task
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `batch.triggerByTask()` to batch trigger tasks by passing task instances for static task sets
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `tasks.trigger()` with type-only imports to trigger tasks from backend code without importing the task implementation
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `yourTask.trigger()` to trigger a task from inside another task with specified payload
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `batch.trigger()` to trigger multiple different tasks at once from backend code
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `tasks.batchTrigger()` to trigger multiple runs of a single task with different payloads
Applied to files:
docs/troubleshooting.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Attach metadata to task runs using the metadata option when triggering, and access/update it inside runs using metadata functions
Applied to files:
docs/runs/heartbeats.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Subscribe to run updates using `runs.subscribeToRun()` for realtime monitoring of task execution
Applied to files:
docs/runs/heartbeats.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use the `task()` function from `trigger.dev/sdk/v3` to define tasks with id and run properties
Applied to files:
docs/runs/heartbeats.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use `.withStreams()` to subscribe to realtime streams from task metadata in addition to run changes
Applied to files:
docs/runs/heartbeats.mdx
📚 Learning: 2025-11-27T16:27:35.304Z
Learnt from: CR
Repo: triggerdotdev/trigger.dev PR: 0
File: .cursor/rules/writing-tasks.mdc:0-0
Timestamp: 2025-11-27T16:27:35.304Z
Learning: Applies to **/trigger/**/*.{ts,tsx,js,jsx} : Use metadata methods (set, del, replace, append, remove, increment, decrement, stream, flush) to update metadata during task execution
Applied to files:
docs/runs/heartbeats.mdx
🔇 Additional comments (7)
docs/guides/frameworks/bun.mdx (1)
17-19: LGTM!Clear and helpful version compatibility note for Bun users.
docs/troubleshooting.mdx (1)
76-78: LGTM!Concise troubleshooting entry with actionable guidance and a link to the native builder.
docs/deployment/preview-branches.mdx (1)
75-75: LGTM!Good clarification about the
closedtype requirement for automatic archiving.docs/docs.json (1)
73-73: LGTM!Good placement of the heartbeats page after
runs/max-durationin the "Writing tasks" navigation group.docs/runs/heartbeats.mdx (2)
32-34: LGTM!Good guidance pointing users to run metadata and Realtime for progress monitoring.
36-38: LGTM!Helpful section clarifying that external push notifications are the user's responsibility, with practical suggestions.
docs/github-actions.mdx (1)
86-119: The workflow and documentation are correct. The Trigger.dev CLI automatically detects closed PR events from GitHub Actions environment variables and invokes archive logic instead of deploying. The CLI reads the PR state (openorclosed) and conditionally archives the preview branch on closed events without requiring an explicit job-level condition. No changes needed.
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Doc updates: