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There is a new fastest growing GitHub repo ever in history. DeepSeek Harness: Everything is a Plugin. This is the new agent harness released by DeepSeek AI. And the reason that it's special is because everything is a plugin. This means is that every module of the harness is a plugin that gets compiled when you start that harness, including the core agent loop itself. This is basically the ultimate hackable agent harness because there is no core code to the harness. Every piece of code that contributes to that final harness runtime that you're using is a plugin that are combined together and loaded in sequence. If you've ever used a PIE agent, it's pretty similar, except PIE actually does have core code, it's just very small. Whereas with the DeepSeek Harness architecture, every part of it is a plugin and is easily modifiable. So how your agent actually interfaces with the LLM directly, the tool registry, how tools defines and registers tools, the session log, how the harness actually interacts with harness transcripts, and the agent loop itself. So how your agent actually goes through turns. This is basically the ultimate hackable agent harness because there is no core code to the harness. Every piece of code that contributes to that final harness runtime that you're using is a plugin that are combined together and loaded in sequence. If you've ever used a PIE agent, it's pretty similar, except PIE actually does have core code, it's just very small. Whereas with the DeepSeek Harness architecture, every part of it is a plugin and is easily modifiable. So how your agent actually interfaces with the LLM directly, the tool registry, how tools defines and registers tools, the session log, how the harness actually interacts with harness transcripts, and the agent loop itself. So how your agent actually goes through turns.