DeepSeek Harness，是今年最有野心的一次Agent开源

TL;DR - DeepSeek released the developer preview of DeepSeek Harness, an open-source agent framework whose models, loops, tools, memory, sandboxes, and interfaces are replaceable plugins. Its modular architecture could support a broader ecosystem of customizable agents rather than a single coding product.

• Four modes cover full coding workflows, programmatic tool calling, minimal model evaluation, and custom agent creation.
• Programmatic tool calling packages tools as a TypeScript SDK, reducing model round trips and keeping intermediate data out of context.
• Append-only event logs enable replay and recovery, while built-in subagent orchestration can invoke local Codex and Claude Code installations.
• Early testing showed strong parallel task coordination and observability, but also UI bugs and weaker local consistency in long-form generation.