deepseek-ai/deepseek-harness

This page introduces an external open-source repository. It is not an HDATF product.

What it does

DeepSeek Harness (dsh) is an open-source agent harness from DeepSeek AI built on an everything-is-a-plugin architecture using Cordis. It runs a local web UI and is in developer preview with breaking changes expected.

How it helps ATF

As an agent harness, it is worth comparing with our Harness. Its everything-is-a-plugin design could be a reference for splitting agent features into parts, though the project is still in developer preview.

License

MIT Permissive. Commercial use and changes are allowed if the copyright notice is kept.

More in this category

• walkinglabs/learn-harness-engineering
  A project-based course on harness engineering, covering the environment, state management, verification and control that make AI coding agents work reliably. It also breaks down the harness designs of Pi, Claude Code, Codex and DeepSeek.
• awesome-dsh-plugin/awesome-dsh-plugin
  A curated list of plugins for DeepSeek Harness, also called dsh.
• chaitanyagiri/munder-difflin
  A local desktop multi-agent harness that wraps terminal coding CLIs such as Claude Code, Codex and Gemini CLI. Each agent gets long-term memory and a mailbox, and a coordinating agent routes work between them on a 2D office view.
• anywhere-labs/dsh-desktop
  A community-built Windows and macOS desktop client for DeepSeek Harness, not affiliated with DeepSeek. It runs a pinned upstream version unchanged and adds a window, tray, terminal, updates and settings, combined through the plugin system.
• truefoundry/trueforge
  TrueForge is an open-source agent harness that handles model calls, MCP tools, skills, sandboxing, approvals, context management and session state. It offers a chat UI, an HTTP API with a TypeScript SDK, and an embeddable UI SDK.

Only repositories in the ranked Trendshift lists are included, and the lists are used only to find candidates. We do not copy their ranks. Descriptions, licenses and star counts come from each GitHub repository. The notes are our own reading. We have not tested these projects, and a place on a trending list does not prove quality.