DeepSeek Harness

gist

DeepSeek Harness is an open-source agent harness built around an “everything is a plugin” architecture and powered by Cordis. The developer preview includes a browser interface, an npm entry point, plugin discovery, architecture documentation, and an agent-facing guide. Rapid iteration comes with explicit compatibility-breaking changes, so the repository is currently more useful as a design reference than as a stable integration target.

ideas

• Plugins define the architecture. The harness treats its capabilities as extensions instead of expanding a privileged core for each feature.
• Cordis supplies the composition model. The underlying framework is designed around spatiotemporal composability.
• The first run is intentionally small. The npx @deepseek-ai/dsh web command starts the browser interface without a repository checkout.
• Preview status is a real boundary. The maintainers warn that compatibility-breaking changes will occur while the system evolves.