DeepSeek Harness
MIT everything-is-a-plugin agent harness (dsh) — Cordis, Web UI
AI Agents / Agents · OSS/MIT · 253k
Reviewed 2026-09-24 · last push 2026-10-17 · repo checked 2026-10-19
What's Good
MIT (deepseek-ai/deepseek-harness). Plugin topic `dsh-plugin`, AGENTS.md for agent contributors, docs at deepseek-harness.github.io, Discord + Discussions. Run path is npm (`npx @deepseek-ai/dsh web` → localhost:3080) or pnpm from source. Not the similarly named Harness SDK: this is DeepSeek’s plugin harness product.
The Catch
Vs DeerFlow and OpenHands: this is a Cordis plugin-harness + Web UI from DeepSeek, not a ByteDance SuperAgent product tree or an open coding agent alone. Developer preview with explicit COMPATIBILITY-BREAKING CHANGES; SAFETY.md says no security audit, model/plugin code can damage the host — prefer a disposable VM/container. Extreme star velocity (~235k aria-label) is discovery noise, not proof.
Verdict
MIT plugin agent harness when you want Cordis-shaped extensibility and will treat preview APIs plus SAFETY.md as real constraints.
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Markdown
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