DeepSeek AI Releases DeepSeek Harness in Developer Preview: An MIT-Licensed Agent Harness Where Everything is a Plugin

DeepSeek AI has released a developer preview of DeepSeek Harness, an MIT-licensed framework designed to manage AI agents through a modular plugin architecture. The tool utilizes a system called Cordis to handle capabilities, featuring provider-agnostic model routing and append-only session logging across four distinct runtime modes.