DeepSeek Harness is built for teams that need a fully self-hosted, MIT-licensed agent harness where every subsystem is a swappable plugin with no privileged core. Its best audience is engineering groups that want to replace the agent loop, sandbox, or model providers from configuration without vendor lock-in. The tradeoff is that because process confinement and filesystem policy are swappable seams rather than a managed default, sandboxing is left to whoever deploys it, and running it still costs whatever the model provider charges for inference plus the machine it runs on.
Best for: Engineering groups needing self-hosted, fully swappable agent architecture
Consider: Sandboxing left to deployer; inference and machine costs apply