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DeepSeek Harness / DSH

A practical guide to the new plugin-first agent harness.

Install notes, plugin discovery, workflow examples, and honest comparisons for developers evaluating DeepSeek Harness during its developer preview.

Start with installExplore plugins

Quick command

npx @deepseek-ai/dsh web

Developer preview means fast movement, sharp edges, and a real need for version-aware tutorials.

What this site covers

What is DeepSeek Harness?

Definition + developer evaluation

Install DeepSeek Harness

Setup and first run

DSH Plugin Directory

Find and evaluate plugins

DeepSeek Harness vs Claude Code

Comparison and positioning

Alternatives

Compare agent harness options

Known public facts

  • DeepSeek Harness, also called dsh, is an open-source agent harness by DeepSeek AI.
  • The project is in developer preview; compatibility-breaking changes are expected.
  • The core design idea is “Everything is a plugin”: models, tools, skills, sessions, sandboxes, storage, loops, scheduling, and UI can be composed through plugins.
  • The npm quick start command is npx @deepseek-ai/dsh web, and the Web UI is served locally by default.