实测DeepSeek Harness！梁文锋憋的“黑色鲸鱼”大招，有惊喜

TL;DR - DeepSeek released the open-source developer preview of DeepSeek Harness, a modular framework for building and testing agents. Its plugin-first architecture makes agent components replaceable and execution traces inspectable, prioritizing developer customization over a polished consumer coding agent.

• Cordis plugins provide models, tools, skills, sandboxes, storage, scheduling, UI, and other agent capabilities.
• Four bundled modes—standard, minimal, creative, and programmatic tool calling—load different plugin combinations for distinct workflows.
• Append-only session logs capture prompts, reasoning, tool calls, sub-agent dispatches, and context injections for replay, branching, and debugging.
• In the publication’s tests, translating an 88-page paper took 22 minutes using 10 sub-agents; a Snake game was generated in roughly 50–65 seconds, depending on mode.