GitHub - facebookresearch/HyperAgents: Self-referential self-improving agents that can optimize for any computable task

HyperAgents is a Facebook Research open-source framework for building self-referential, self-improving AI agents capable of optimizing for any computable task. The system uses a meta-agent and task-agent architecture, supports multiple LLM backends (OpenAI, Anthropic, Gemini), and executes model-generated code in a loop to iteratively improve agent behavior. The repository includes setup instructions, experiment logs, and a safety warning about executing untrusted model-generated code. It accompanies an arXiv paper (2603.19461) from Meta AI Research.