deepseek-harness

🧑‍💻 Development & Runtime ⭐ 149703 stars Official Resource

DeepSeek's official open-source agent harness — a plugin-first runtime where everything is a plugin. The framework every DSH plugin extends.

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GitHub stars⭐ 149703

LicenseMIT

Primary languageTypeScript

Last push2026-08-17T12:01:58Z

Maintainerdeepseek-ai

Added to this directory2026-08-14

About this project

DeepSeek Harness: Everything is a Plugin.

More about this project

DeepSeek Harness (dsh) is an open-source agent harness developed by DeepSeek AI.

Use cases

DeepSeek Harness is for anyone who wants to run a real, self-hosted coding agent instead of renting one. It shines in three situations.

Long autonomous tasks. Because sessions are traceable and resumable, you can hand the harness a multi-step job — refactor a module, migrate a codebase, run a research loop — and let it work while you watch the logs. If something goes wrong, you rewind and retry rather than starting over.

Team workflows that need auditability. Every step, tool call and output is recorded. Teams that must review what an agent did (compliance, code review, onboarding juniors) get a paper trail that closed tools don't offer.

People who want an open stack. Since everything is a plugin, you assemble the exact runtime you want: which models, which tools, which memory, which UI. You're not locked to a vendor's defaults.

Start small: install it, add one or two plugins (memory and a good UI), and run a single real task end to end before scaling up.

Project FAQ: deepseek-harness

What is deepseek-harness?

deepseek-harness is a DeepSeek Harness ecosystem resource maintained by deepseek-ai. DeepSeek's official open-source agent harness — a plugin-first runtime where everything is a plugin. The framework every DSH plugin extends.

Where can I get deepseek-harness?

Source code and usage instructions are available at https://github.com/deepseek-ai/deepseek-harness. Follow the repository README for the correct setup steps.

Is deepseek-harness free?

deepseek-harness is a community open-source project released under the MIT license. Review the repository license and documentation before use.