cagent

🤖 cagent 🤖

A powerful, easy to use, customizable multi-agent runtime that orchestrates AI agents with specialized capabilities and tools, and the interactions between agents.

✨ What is cagent? ✨

cagent lets you create and run intelligent AI agents and teams, where each agent has specialized knowledge, tools, and capabilities.

Think of it as allowing you to quickly build and run a team of virtual experts that collaborate to solve complex problems for you.

And it's dead easy to use!

⚠️ Note: cagent is in active development, breaking changes are to be expected ⚠️

Your First Agent

Example basic_agent.yaml:

Creating agents with cagent is very simple. They are described in a short yaml file, like this one:

agents:
  root:
    model: openai/gpt-5-mini
    description: A helpful AI assistant
    instruction: |
      You are a knowledgeable assistant that helps users with various tasks.
      Be helpful, accurate, and concise in your responses.

Run it in a terminal with cagent run basic_agent.yaml.

Many examples can be found here!

🎯 Key Features

• 🏗️ Multi-agent architecture - Create specialized agents for different domains.
• 🔧 Rich tool ecosystem - Agents can use external tools and APIs via the MCP protocol.
• 🔄 Smart delegation - Agents can automatically route tasks to the most suitable specialist.
• 📝 YAML configuration - Declarative model and agent configuration.
• 💭 Advanced reasoning - Built-in "think", "todo" and "memory" tools for complex problem-solving.
• 🌐 Multiple AI providers - Support for OpenAI, Anthropic, Gemini and Docker Model Runner.

🚀 Quick Start 🚀

Installation

Prebuilt binaries for Windows, macOS and Linux can be found on the releases page of the project's GitHub repository

Once you've downloaded the appropriate binary for your platform, you may need to give it executable permissions. On macOS and Linux, this is done with the following command:

# linux amd64 build example
chmod +x /path/to/downloads/cagent-linux-amd64

You can then rename the binary to cagent and configure your PATH to be able to find it (configuration varies by platform).

Set your API keys

Based on the models you configure your agents to use, you will need to set the corresponding provider API key accordingly, all theses keys are optional, you will likely need at least one of these, though:

# For OpenAI models
export OPENAI_API_KEY=your_api_key_here

# For Anthropic models
export ANTHROPIC_API_KEY=your_api_key_here

# For Gemini models
export GOOGLE_API_KEY=your_api_key_here

Run Agents!

# Run an agent!
cagent run ./examples/pirate.yaml

# or specify a different starting agent from the config, useful for agent teams
cagent run ./examples/pirate.yaml -a root

# or run directly from an image reference
cagent run agentcatalog/pirate

Multi-agent team example

agents:
  root:
    model: claude
    description: "Main coordinator agent that delegates tasks and manages workflow"
    instruction: |
      You are the root coordinator agent. Your job is to:
      1. Understand user requests and break them down into manageable tasks
      2. Delegate appropriate tasks to your helper agent
      3. Coordinate responses and ensure tasks are completed properly
      4. Provide final responses to the user
      When you receive a request, analyze what needs to be done and decide whether to:
      - Handle it yourself if it's simple
      - Delegate to the helper agent if it requires specific assistance
      - Break complex requests into multiple sub-tasks
    sub_agents: ["helper"]

  helper:
    model: claude
    description: "Assistant agent that helps with various tasks as directed by the root agent"
    instruction: |
      You are a helpful assistant agent. Your role is to:
      1. Complete specific tasks assigned by the root agent
      2. Provide detailed and accurate responses
      3. Ask for clarification if tasks are unclear
      4. Report back to the root agent with your results

      Focus on being thorough and helpful in whatever task you're given.

models:
  claude:
    provider: anthropic
    model: claude-sonnet-4-0
    max_tokens: 64000

You'll find a curated list of agents examples, spread into 3 categories, Basic, Advanced and multi-agents in the /examples/ directory.

Quickly generate agents and agent teams with cagent new

Using the command cagent new you can quickly generate agents or multi-agent teams using a single prompt! cagent has a built-in agent dedicated to this task.

To use the feature, you must have an Anthropic, OpenAI or Google API key available in your environment.

If --provider is unspecified, cagent new will automatically choose between these 3 in order based on the first api key it finds in the environment

export ANTHROPIC_API_KEY=your_api_key_here  # first choice
export OPENAI_API_KEY=your_api_key_here     # if anthropic key not set
export GOOGLE_API_KEY=your_api_key_here     # if anthropic and openai keys are not set

The model in use can also be overridden using --model (can only be used together with --provider)

Example of provider and model overriding:

cagent new --provider openai --model gpt-5

$ cagent new

------- Welcome to cagent! -------
(Ctrl+C to stop the agent or exit)

What should your agent/agent team do? (describe its purpose):

> I need an agent team that connects to <some-service> and does...

Pushing and pulling agents and teams from Docker Hub

cagent push

Agent configurations can be packaged and shared to Docker Hub using the cagent push command

cagent push ./<agent-file>.yaml namespace/reponame

cagent will automatically build an OCI image and push it to the desired repository using your Docker credentials

cagent pull

Pulling agents/teams from Docker Hub is also just one cagent pull command away.

cagent pull agentcatalog/pirate

cagent will pull the image, extract the yaml file and place it in your working directory for ease of use.

cagent run agentcatalog_pirate.yaml will run your newly pulled agent

Usage

More details on the usage and configuration of cagent can be found in USAGE.md

Telemetry

We track anonymous usage data to improve the tool. See TELEMETRY.md for details.

Contributing

Want to hack on cagent, or help us fix bugs and build out some features? 🔧

Read the information on how to build from source and contribute to the project in CONTRIBUTING.md