Hmbown/CodeWhale

Codewhale

An open source coding agent for your terminal — bring your own model.

Codewhale started as a native experience for DeepSeek. It has since grown into a community-driven project: one coding harness that fits a growing international community and supports as many models and providers as possible — open models first, hosted or local, none privileged over the rest.

Give it a provider, a model, and a task. It reads your code, edits files, runs commands, and checks its own work, then stops when the job is done or it needs you. Switch models mid-task with /model. Work interactively in the TUI, or run codewhale exec in scripts and CI. It's written in Rust, licensed MIT, and runs on your machine.

The part that isn't like other harnesses: you pick the model for each role, and they don't have to match. A fleet pins a provider, a model, and a reasoning tier per role — so a cheap fast model can direct an expensive reasoning one, or a GLM builder can work the same job as a Kimi reviewer. Write your own roles, your own constitution, and the harness is yours rather than ours.

We're always looking for contributors and ways to improve. If a model or provider you use is missing, or something breaks, telling us is one of the most useful things you can do — see Contributing.

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