How DeepSeek Harness Works: Cordis, Plugins, & Step-by-Step Local Setup

Описание: Is this the most customizable AI agent framework ever built? 🚀
In this video, we dive deep into DeepSeek Harness (dsh), DeepSeek's brand-new, MIT-licensed open-source agent runtime where "Everything is a Plugin".

If you've been using monolithic, opinionated AI assistants like Claude Code, DeepSeek Harness completely flips the script. Instead of a locked-in pipeline, it gives you a thin, extensible Cordis kernel where every single capability—models, sandboxes, tools, loops, scheduling, and even the UI itself—is a swappable plugin that can be customized in configuration without modifying the core source code.

We break down the fundamental equation: Agent = Model + Harness. While the LLM is the agent's "soul," the harness is what actually keeps it functioning in real-world settings.

What We Cover in This Video:
0:00 - Introduction & The "Everything is a Plugin" Philosophy
1:30 - The Cordis Kernel & Swappable Architecture
3:15 - The 4 Runtime Modes (Standard, Code, Minimal, & Creator)
5:00 - Complete Traceability & Replaying Conversations (Trajectory View)
6:45 - 4 Permission Levels & Security Sandbox Boundaries
8:30 - Local Installation & Set Up (Step-by-Step)
10:15 - Cost vs. Performance: DeepSeek Flash vs. Pro

🔧 QUICKSTART GUIDE:
Get up and running in your terminal with a single command:
npx @deepseek-ai/dsh web [7, 15]
Or clone the repository and install from source:

git clone https://github.com/deepseek-ai/deepse... [7]
📌 KEY FEATURES EXPLORED:
Cordis Meta-Framework: Manages plugin contexts, loading/unloading, and dependencies automatically.

Four Operating Modes:
Standard Mode: Full-featured coding agent with shell, planning, and web search.

Code Mode: Exposes tools via Code Mode SDK so the model orchestrates operations in a single TypeScript program.

Minimal Mode: Stripped-down two-tool agent (bash + editor) used for official model benchmarking.

Creator Mode: For testing plugins and building your own agent presets.

Agent Orchestration: Out-of-the-box support for calling other major tools (like Claude Code or Codex) as sub-agents in a single workflow.

Trajectory View: Inspect the append-only session log to resume, fork, search, and replay any run.

⚠️ IMPORTANT NOTE: DeepSeek Harness is currently in Developer Preview (v0.1). Expect breaking API changes, and make sure to run it inside an isolated sandbox or virtual machine when using full system permissions!

🔗 LINKS & RESOURCES:
GitHub Repository: https://github.com/deepseek-ai/deepse...
Developer Docs: https://deepseek-harness.github.io/de...
Community Plugins: https://github.com/topics/dsh-plugin
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Research Done by https://Bowora.com