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sim/apps/docs/content/docs/en/tools/devin.mdx
Waleed 25c59e3e2e feat(devin): add devin integration for autonomous coding sessions (#3352) 
* feat(devin): add devin integration for autonomous coding sessions

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* improvement(devin): update tool names and add manual docs description

* improvement(devin): rename tool files to snake_case and regenerate docs

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* fix(devin): remove redundant Number() conversions in tool request bodies
2026-02-26 11:57:50 -08:00

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---
title: Devin
description: Autonomous AI software engineer
---
import { BlockInfoCard } from "@/components/ui/block-info-card"
<BlockInfoCard
type="devin"
color="#12141A"
/>
{/* MANUAL-CONTENT-START:intro */}
[Devin](https://devin.ai/) is an autonomous AI software engineer by Cognition that can independently write, run, debug, and deploy code.
With Devin, you can:
- **Automate coding tasks**: Assign software engineering tasks and let Devin autonomously write, test, and iterate on code
- **Manage sessions**: Create, monitor, and interact with Devin sessions to track progress on assigned tasks
- **Guide active work**: Send messages to running sessions to provide additional context, redirect efforts, or answer questions
- **Retrieve structured output**: Poll completed sessions for pull requests, structured results, and detailed status
- **Control costs**: Set ACU (Autonomous Compute Unit) limits to cap spending on long-running tasks
- **Standardize workflows**: Use playbook IDs to apply repeatable task patterns across sessions
In Sim, the Devin integration enables your agents to programmatically manage Devin sessions as part of their workflows:
- **Create sessions**: Kick off new Devin sessions with a prompt describing the task, optional playbook, ACU limits, and tags
- **Get session details**: Retrieve the full state of a session including status, pull requests, structured output, and resource consumption
- **List sessions**: Query all sessions in your organization with optional pagination
- **Send messages**: Communicate with active or suspended sessions to provide guidance, and automatically resume suspended sessions
This allows for powerful automation scenarios such as triggering code generation from upstream events, polling for completion before consuming results, orchestrating multi-step development pipelines, and integrating Devin's output into broader agent workflows.
{/* MANUAL-CONTENT-END */}
## Usage Instructions
Integrate Devin into your workflow. Create sessions to assign coding tasks, send messages to guide active sessions, and retrieve session status and results. Devin autonomously writes, runs, and tests code.
## Tools
### `devin_create_session`
Create a new Devin session with a prompt. Devin will autonomously work on the task described in the prompt.
#### Input
| Parameter | Type | Required | Description |
| --------- | ---- | -------- | ----------- |
| `apiKey` | string | Yes | Devin API key \(service user credential starting with cog_\) |
| `prompt` | string | Yes | The task prompt for Devin to work on |
| `playbookId` | string | No | Optional playbook ID to guide the session |
| `maxAcuLimit` | number | No | Maximum ACU limit for the session |
| `tags` | string | No | Comma-separated tags for the session |
#### Output
| Parameter | Type | Description |
| --------- | ---- | ----------- |
| `sessionId` | string | Unique identifier for the session |
| `url` | string | URL to view the session in the Devin UI |
| `status` | string | Session status \(new, claimed, running, exit, error, suspended, resuming\) |
| `statusDetail` | string | Detailed status \(working, waiting_for_user, waiting_for_approval, finished, inactivity, etc.\) |
| `title` | string | Session title |
| `createdAt` | number | Unix timestamp when the session was created |
| `updatedAt` | number | Unix timestamp when the session was last updated |
| `acusConsumed` | number | ACUs consumed by the session |
| `tags` | json | Tags associated with the session |
| `pullRequests` | json | Pull requests created during the session |
| `structuredOutput` | json | Structured output from the session |
| `playbookId` | string | Associated playbook ID |
### `devin_get_session`
Retrieve details of an existing Devin session including status, tags, pull requests, and structured output.
#### Input
| Parameter | Type | Required | Description |
| --------- | ---- | -------- | ----------- |
| `apiKey` | string | Yes | Devin API key \(service user credential starting with cog_\) |
| `sessionId` | string | Yes | The session ID to retrieve |
#### Output
| Parameter | Type | Description |
| --------- | ---- | ----------- |
| `sessionId` | string | Unique identifier for the session |
| `url` | string | URL to view the session in the Devin UI |
| `status` | string | Session status \(new, claimed, running, exit, error, suspended, resuming\) |
| `statusDetail` | string | Detailed status \(working, waiting_for_user, waiting_for_approval, finished, inactivity, etc.\) |
| `title` | string | Session title |
| `createdAt` | number | Unix timestamp when the session was created |
| `updatedAt` | number | Unix timestamp when the session was last updated |
| `acusConsumed` | number | ACUs consumed by the session |
| `tags` | json | Tags associated with the session |
| `pullRequests` | json | Pull requests created during the session |
| `structuredOutput` | json | Structured output from the session |
| `playbookId` | string | Associated playbook ID |
### `devin_list_sessions`
List Devin sessions in the organization. Returns up to 100 sessions by default.
#### Input
| Parameter | Type | Required | Description |
| --------- | ---- | -------- | ----------- |
| `apiKey` | string | Yes | Devin API key \(service user credential starting with cog_\) |
| `limit` | number | No | Maximum number of sessions to return \(1-200, default: 100\) |
#### Output
| Parameter | Type | Description |
| --------- | ---- | ----------- |
| `sessions` | array | List of Devin sessions |
| ↳ `sessionId` | string | Unique identifier for the session |
| ↳ `url` | string | URL to view the session |
| ↳ `status` | string | Session status |
| ↳ `statusDetail` | string | Detailed status |
| ↳ `title` | string | Session title |
| ↳ `createdAt` | number | Creation timestamp \(Unix\) |
| ↳ `updatedAt` | number | Last updated timestamp \(Unix\) |
| ↳ `tags` | json | Session tags |
### `devin_send_message`
Send a message to a Devin session. If the session is suspended, it will be automatically resumed. Returns the updated session state.
#### Input
| Parameter | Type | Required | Description |
| --------- | ---- | -------- | ----------- |
| `apiKey` | string | Yes | Devin API key \(service user credential starting with cog_\) |
| `sessionId` | string | Yes | The session ID to send the message to |
| `message` | string | Yes | The message to send to Devin |
#### Output
| Parameter | Type | Description |
| --------- | ---- | ----------- |
| `sessionId` | string | Unique identifier for the session |
| `url` | string | URL to view the session in the Devin UI |
| `status` | string | Session status \(new, claimed, running, exit, error, suspended, resuming\) |
| `statusDetail` | string | Detailed status \(working, waiting_for_user, waiting_for_approval, finished, inactivity, etc.\) |
| `title` | string | Session title |
| `createdAt` | number | Unix timestamp when the session was created |
| `updatedAt` | number | Unix timestamp when the session was last updated |
| `acusConsumed` | number | ACUs consumed by the session |
| `tags` | json | Tags associated with the session |
| `pullRequests` | json | Pull requests created during the session |
| `structuredOutput` | json | Structured output from the session |
| `playbookId` | string | Associated playbook ID |
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