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devin-ai-integration[bot] 4b28080ed4 feat: add isReplay to run context (#3454)
## Summary

Adds `isReplay` boolean to the run context (`ctx.run.isReplay`),
following the same pattern as the existing `isTest`. The value is
derived from the existing `replayedFromTaskRunFriendlyId` database
field, so no schema migration is needed.

##  Checklist

- [x] I have followed every step in the [contributing
guide](https://github.com/triggerdotdev/trigger.dev/blob/main/CONTRIBUTING.md)
- [x] The PR title follows the convention.
- [x] I ran and tested the code works

---

## Testing

- Verified `@trigger.dev/core` builds successfully
- Verified `webapp` typechecks successfully
- All new fields use `default(false)` for backwards compatibility

---

## Changelog

- Added `isReplay` to `TaskRun` and `V3TaskRun` schemas in `common.ts`
- Added `RUN_IS_REPLAY` semantic attribute and wired it in `taskContext`
- Propagated `isReplay` through the dequeue system, run attempt system,
and all execution context construction paths (V1 + V2)
- Added `isReplay` to `DequeuedMessage` and
`TaskRunExecutionLazyAttemptPayload` schemas
- Added patch changeset for `@trigger.dev/core`
- Updated docs: added `isReplay` to context reference, added "Detecting
replays" section to replaying page

---

💯

Link to Devin session:
https://app.devin.ai/sessions/1d6f1b3cc39a4623b72d05bf00f2d70c

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: nick <55853254+nicktrn@users.noreply.github.com>
2026-04-28 11:57:44 +02:00

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---
title: "Context"
description: "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
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>