DeepSeek Harness DSH: A Developer’s Guide to the Plugin-Driven Agent Framework

DeepSeek Harness Developer Preview: Running, Configuring, and Lessons Learned DeepSeek recently open‑sourced its Agent Harness framework dsh – a plugin‑driven AI agent framework built on top of Cordis. I spent a couple of days getting it up and running, and also went through the research paper that underpins Cordis. This post walks through the installation, the core concepts you actually need to understand, and a few sharp edges I hit along the way. What Problem Does It Actually Solve? AI agent harnesses tend to become monolithic over time: tool calling, memory, sub‑agent orchestration, permission controls, session state – they all …