DeepSeek Harness ArchitectureEverything is a Plugin

Read the deepseek-harness source top-down — the Cordis framework and plugin system, every step linking to the exact GitHub line.

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Cordis Framework

Plugin System

GitHub repo

Everything is a Plugin

From the CLI and Web UI to every capability domain (fs/shell/llm/mcp/session…), all register as Cordis plugins — composable, replaceable, hot-reloadable.

Cordis core

Unpacks the vendored Cordis source (context/registry/service/fiber/events) to explain dependency injection and service registration at the lowest level.

Plugin lifecycle

From discovery, loading, dependency resolution to unload and hot reload — layer by layer on both host and client sides.

Source-linked

Every key file has a SrcLink that jumps straight to the GitHub line. Pinned to commit 47f9438 (2026-08-13, dsh@0.1).

Unofficial learning site

Community-driven source study material. Does not replace the official docs — deep dives link to docs/cordis-primer and cordis-tutorial.

Built for learners

Mermaid diagrams, data-flow walks, concise prose. Built for people building a mental model.