Agent File (.af) Format Aging

Published: April 2, 2025 | Original Post

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The first file format for representing agentic state in a portable and reproducible way.

Purpose

Agent File (.af) enables developers to re-create the exact same agent on a different server, allowing movement of agents across cloud and local agent servers.

Problems Solved

• Portability and reproducibility between systems
• Collaboration between developers
• Preservation of agent configurations
• Versioning agents over time

Example Agents

Four example agents shipped in the GitHub repository:

1. Deep Research Agent -- Uses in-context memory to manage research state over time
2. Customer Support Agent -- Features memory and custom tools
3. Workflow Agent -- Stateless design with pre-defined tool graphs for email drafting
4. MemGPT Agents -- Based on prompts from the original MemGPT release