What is DeepSeek Harness?

DeepSeek Harness (DSH) is a Cordis-based agent runtime where every capability — models, tools, sandboxes, UI — is a swappable plugin. It lets you compose AI agents from a rich ecosystem of community-built components.

Oh! dsh is an independent expert guide for DeepSeek Harness. We provide curated plugin reviews, real-world scenario guides, and bilingual documentation to help you make the right choices for your DSH projects.

How do I find the best DSH plugins?

Start with our Editor's Picks — 12 hand-tested plugins our team actually uses. Then explore the full directory of 3304+ plugins organized by category, or read our in-depth reviews and comparison articles.

Is documentation available in Chinese?

Yes — full documentation in English at /docs/en/ and Simplified Chinese at /docs/zh/.

How is Oh! dsh different from the official plugin market?

The official plugin market is an install directory. Oh! dsh is a decision guide — we provide in-depth reviews, scenario-based recommendations, comparison articles, and best practices to help you choose the right plugins for your specific use case.

DSH Weekly · Newsletter

DSH Weekly

A weekly, opinionated read on the DeepSeek Harness ecosystem — the launches, the pricing moves, and the plugins worth your time.

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Latest issues

5 issues

#005 · 2026-09-10 deepseek v4.1 harness release breaking-change pricing

V4.1 Flash rewrites the price list, and Harness changes its session format

DeepSeek ships V4.1 Flash, cuts Flash prices by up to 60% and starts retiring V4 Pro, while DeepSeek Harness lands four releases in four days — including session format V3 and V4.1 Flash as the default model for new sessions.

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#004 · 2026-09-07 gpt-6 openai harness release breaking-change

GPT-6 Astra lands, and Harness rebuilds its foundations

OpenAI ships GPT-6 Astra and declares the AGI era, while DeepSeek Harness rolls out v0.1.2-rc.1 and v0.1.3-alpha.1 with a v2 session format, a new SessionHandle API, and the SQLite backend removed.

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#003 · 2026-08-31 harness security release sdk

DeepSeek gets honest about security

DeepSeek's safety note admits Harness isn't security-audited, while the v0.1.2-alpha line ships subagent model selection, exact token usage, and a Windows Python SDK.

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#002 · 2026-08-24 harness security release pricing

Harness hits its first security scare — RCE at CVSS 9.8

A critical unauthenticated RCE (CVSS 9.8) rocks DeepSeek Harness, alongside rc.8 multimodal, the Claude Code/Codex scheduling layer, and weekend off-peak pricing.

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#001 · 2026-08-17 harness pricing open source

DeepSeek Harness goes open source — and V4 pricing goes time-of-day

This week DeepSeek did two things: open-sourced its Harness agent runtime and switched V4 API billing to peak/off-peak tiers. Here's our read on both — what changed, what to read, and what it means for anyone building on DSH.

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