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Overview

SWE Development Kit (swekit) is a powerful framework for building Software Engineering agents using Composio’s tooling ecosystem. This example demonstrates how to build a Pull Request (PR) Review Agent using SWE Development Kit (swekit). The PR Review Agent uses Composio’s tooling ecosystem to help automate and enhance the PR review process.

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Getting Started

1

Installation

Begin by installing the core packages:

For additional functionality, install packages for your preferred framework (e.g., LangChain):

2

Connect your Github Account

To utilize Github Issues as a task source, link your Github account as follows:

There are two ways to provide the GitHub access token for git clone:

  1. Set the environment variable GITHUB_ACCESS_TOKEN='<git_access_token>'.
  2. Use the GitHub account connected to your toolset entity. However, this method has limitations:
    • The agent won’t be able to push or create PRs.
    • You need to set export ALLOW_CLONE_WITHOUT_REPO='true'.

Option 1 is recommended for full functionality.

3

Create a New Agent

Generate your agent’s scaffolding:

ArgumentDescriptionAccepted Values
-fSpecifies the framework to uselanggraph
-oSets the output directory for generated filesAny valid directory path

Scaffold support for other frameworks coming soon!

This process will establish a new agent at pr_review_agent with essential files:

  • main.py: The main script to execute the agent
  • agent.py: The agent’s core definition
  • prompts.py: Prompts to guide the agent’s actions
  • input.py: A helper file to take inputs from the user
  • tools.py: A file to add custom tools to the agent
4

Start Docker Server

To use Docker as the default workspace environment, ensure your Docker server is running

If you prefer to run the agent locally without Docker (Unsafe), modify the workspace configuration in agent.py by setting the WorkspaceType.Docker() to WorkspaceType.Host().

5

Run the Agent

To activate the agent, proceed to its directory and execute:

You will be prompted to specify the repository and issue for the agent to address.

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