chore: import upstream snapshot with attribution

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wehub-resource-sync
2026-07-13 13:32:57 +08:00
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---
title: "Writing tasks: Overview"
sidebarTitle: "Overview"
description: "Tasks are the core of Trigger.dev. They are long-running processes that are triggered by events."
---
import ExamplesCards from "/snippets/examples-cards.mdx";
Before digging deeper into the details of writing tasks, you should read the [fundamentals of tasks](/tasks/overview) to understand what tasks are and how they work.
## Writing tasks
| Topic | Description |
| :------------------------------------------- | :-------------------------------------------------------------------------------------------------- |
| [Logging](/logging) | View and send logs and traces from your tasks. |
| [Errors & retrying](/errors-retrying) | How to deal with errors and write reliable tasks. |
| [Wait](/wait) | Wait for periods of time or for external events to occur before continuing. |
| [Concurrency & Queues](/queue-concurrency) | Configure what you want to happen when there is more than one run at a time. |
| [Realtime notifications](/realtime/overview) | Send realtime notifications from your task that you can subscribe to from your backend or frontend. |
| [Versioning](/versioning) | How versioning works. |
| [Machines](/machines) | Configure the CPU and RAM of the machine your task runs on |
| [Idempotency](/idempotency) | Protect against mutations happening twice. |
| [Replaying](/replaying) | You can replay a single task or many at once with a new version of your code. |
| [Max duration](/runs/max-duration) | Set a maximum duration for your task to run. |
| [Tags](/tags) | Tags allow you to easily filter runs in the dashboard and when using the SDK. |
| [Metadata](/runs/metadata) | Attach a small amount of data to a run and update it as the run progresses. |
| [Usage](/run-usage) | Get compute duration and cost from inside a run, or for a specific block of code. |
| [Context](/context) | Access the context of the task run. |
| [Bulk actions](/bulk-actions) | Run actions on many task runs at once. |
| [Priority](/runs/priority) | Specify a priority when triggering a task. |
| [Hidden tasks](/hidden-tasks) | Create tasks that are not exported from your trigger files but can still be executed. |
<ExamplesCards />