The Model Harness Cordis Split

The Model Harness Cordis Split

Open-source agent harness where every capability is a swappable plugin.

Free - MIT-licensed open-source project — free to use. npm package available (0.1.0-rc.6).

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About The Model Harness Cordis Split

DeepSeek Harness (dsh) is DeepSeek AI's open-source agent harness that treats every capability — models, tools, sessions, sandboxes and the agent loop — as swappable plugins. Built on Cordis, dsh mounts and tracks plugin dependencies so you extend or replace capabilities by adding/removing plugins rather than changing core code. MIT-licensed and available as an npm package (0.1.0-rc.6), dsh is in developer preview and integrates with the SpringBrand Marketplace via an OAuth MCP client for ready-to-use capabilities.

Key Features

  • Plugin-first architecture: every capability is a swappable plugin
  • Mount/unmount plugins and manage dependencies via Cordis
  • Supports models, tools, sessions, sandboxes and the agent loop as plugins
  • Integrates with SpringBrand Marketplace via OAuth MCP client for ready-to-use capabilities
  • MIT-licensed, open-source npm package (developer preview)

Who is this for?

Developers and teams building and extending AI agents/LLM-based tooling who need a modular, plugin-first harness.

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