Welcome to Heddle

Heddle is an open-source AI coding agent runtime and terminal-first workspace for real project work.

It is designed for workflows where an agent needs to inspect a live repository, make bounded changes, verify results, keep continuity across sessions, and stay observable to the operator. Heddle supports OpenAI and Anthropic models, stores local workspace state under .heddle/, and gives users a review path for file diffs, commands, approvals, and traces.