plugmyagent

DeepSeek Harness

Agent Frameworks Open source (MIT)

AuthenticationOpen source (MIT)
Rate limitNo vendor limit. You pay your model provider for whatever the agent uses.

Documentation: deepseek-harness.github.io ยท Checked Oct 19, 2026

About

DeepSeek Harness is an open agent runtime built so that nearly everything, models, tools, skills, sessions, sandboxes, and the interface, loads as a plug-in. That makes it easy to swap pieces in and out instead of being locked to one setup. It is still a developer preview, so expect things to change and treat it as a place to experiment, not a foundation for production yet.

Details

Open source. You run it yourself.

Auth: Open source (MIT)

Rate limit: No vendor limit. You pay your model provider for whatever the agent uses.

Verified: 2026-10-19

Best for: developer researchers

Read the docs Back to catalog

Setup

  1. Install Node.js if you do not have it yet
  2. Run the launch command to open the web interface
  3. Read the safety notice in the repo before running anything serious
  4. Try a small task with a plug-in or two
  5. Remember it is a developer preview, so check the docs before relying on any behavior
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