> ## Documentation Index
> Fetch the complete documentation index at: https://trigger.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Context

> Get the context of a task run.

Context (`ctx`) is a way to get information about a run.

<Note>
  The context object does not change whilst your code is executing. This means values like
  `ctx.run.durationMs` will be fixed at the moment the `run()` function is called.
</Note>

<RequestExample>
  ```typescript Context example theme={"theme":"css-variables"}
  import { task } from "@trigger.dev/sdk";

  export const parentTask = task({
    id: "parent-task",
    run: async (payload: { message: string }, { ctx }) => {
      if (ctx.environment.type === "DEVELOPMENT") {
        return;
      }
    },
  });
  ```
</RequestExample>

## Context properties

<ResponseField name="task" type="object">
  <Expandable title="properties" defaultOpen={true}>
    <ResponseField name="exportName" type="string">
      The exported function name of the task e.g. `myTask` if you defined it like this: `export
                  const myTask = task(...)`.
    </ResponseField>

    <ResponseField name="id" type="string">
      The ID of the task.
    </ResponseField>

    <ResponseField name="filePath" type="string">
      The file path of the task.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="attempt" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the execution attempt.
    </ResponseField>

    <ResponseField name="number" type="number">
      The attempt number.
    </ResponseField>

    <ResponseField name="startedAt" type="date">
      The start time of the attempt.
    </ResponseField>

    <ResponseField name="backgroundWorkerId" type="string">
      The ID of the background worker.
    </ResponseField>

    <ResponseField name="backgroundWorkerTaskId" type="string">
      The ID of the background worker task.
    </ResponseField>

    <ResponseField name="status" type="string">
      The current status of the attempt.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="run" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the task run.
    </ResponseField>

    <ResponseField name="context" type="any" optional>
      The context of the task run.
    </ResponseField>

    <ResponseField name="tags" type="array">
      An array of [tags](/tags) associated with the task run.
    </ResponseField>

    <ResponseField name="isTest" type="boolean">
      Whether this is a [test run](/run-tests).
    </ResponseField>

    <ResponseField name="isReplay" type="boolean">
      Whether this run is a [replay](/replaying) of a previous run.
    </ResponseField>

    <ResponseField name="createdAt" type="date">
      The creation time of the task run.
    </ResponseField>

    <ResponseField name="startedAt" type="date">
      The start time of the task run.
    </ResponseField>

    <ResponseField name="idempotencyKey" type="string" optional>
      An optional [idempotency key](/idempotency) for the task run.
    </ResponseField>

    <ResponseField name="maxAttempts" type="number" optional>
      The [maximum number of attempts](/triggering#maxattempts) allowed for this task run.
    </ResponseField>

    <ResponseField name="durationMs" type="number">
      The duration of the task run in milliseconds when the `run()` function is called. For live
      values use the [usage SDK functions](/run-usage).
    </ResponseField>

    <ResponseField name="costInCents" type="number">
      The cost of the task run in cents when the `run()` function is called. For live values use the
      [usage SDK functions](/run-usage).
    </ResponseField>

    <ResponseField name="baseCostInCents" type="number">
      The base cost of the task run in cents when the `run()` function is called. For live values
      use the [usage SDK functions](/run-usage).
    </ResponseField>

    <ResponseField name="version" type="string" optional>
      The [version](/versioning) of the task run.
    </ResponseField>

    <ResponseField name="maxDuration" type="number" optional>
      The [maximum allowed duration](/runs/max-duration) for the task run.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="queue" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the queue.
    </ResponseField>

    <ResponseField name="name" type="string">
      The name of the queue.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="environment" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the environment.
    </ResponseField>

    <ResponseField name="slug" type="string">
      The slug of the environment.
    </ResponseField>

    <ResponseField name="type" type="string">
      The type of the environment (PRODUCTION, STAGING, DEVELOPMENT, or PREVIEW).
    </ResponseField>

    <ResponseField name="branchName" type="string" optional>
      If the environment is `PREVIEW` then this will be the branch name.
    </ResponseField>

    <ResponseField name="git" type="object">
      <Expandable title="properties">
        <ResponseField name="commitAuthorName" type="string" optional>
          The name of the commit author.
        </ResponseField>

        <ResponseField name="commitMessage" type="string" optional>
          The message of the commit.
        </ResponseField>

        <ResponseField name="commitRef" type="string" optional>
          The ref of the commit.
        </ResponseField>

        <ResponseField name="commitSha" type="string" optional>
          The SHA of the commit.
        </ResponseField>

        <ResponseField name="dirty" type="boolean" optional>
          Whether the commit is dirty, i.e. there are uncommitted changes.
        </ResponseField>

        <ResponseField name="remoteUrl" type="string" optional>
          The remote URL of the repository.
        </ResponseField>

        <ResponseField name="pullRequestNumber" type="number" optional>
          The number of the pull request.
        </ResponseField>

        <ResponseField name="pullRequestTitle" type="string" optional>
          The title of the pull request.
        </ResponseField>

        <ResponseField name="pullRequestState" type="string" optional>
          The state of the pull request (open, closed, or merged).
        </ResponseField>
      </Expandable>
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="organization" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the organization.
    </ResponseField>

    <ResponseField name="slug" type="string">
      The slug of the organization.
    </ResponseField>

    <ResponseField name="name" type="string">
      The name of the organization.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="project" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the project.
    </ResponseField>

    <ResponseField name="ref" type="string">
      The reference of the project.
    </ResponseField>

    <ResponseField name="slug" type="string">
      The slug of the project.
    </ResponseField>

    <ResponseField name="name" type="string">
      The name of the project.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="batch" type="object" optional>
  Optional information about the batch, if applicable.

  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the batch.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="machine" type="object" optional>
  Optional information about the machine preset used for execution.

  <Expandable title="properties">
    <ResponseField name="name" type="string">
      The name of the machine preset.
    </ResponseField>

    <ResponseField name="cpu" type="number">
      The CPU allocation for the machine.
    </ResponseField>

    <ResponseField name="memory" type="number">
      The memory allocation for the machine.
    </ResponseField>

    <ResponseField name="centsPerMs" type="number">
      The cost in cents per millisecond for this machine preset.
    </ResponseField>
  </Expandable>
</ResponseField>