DeepSeek Harness Hits 122K GitHub Stars in 3 Days for Fastest Launch in GitHub History

DeepSeek's open source orchestration layer for coding agents enables developers to swap models, tools, and user interfaces as plugins through a YAML configuration. The tool supports routing sub-tasks to various agents, including Claude Code and Codex, and operates as a local web app. Because it is MIT licensed, users can connect the harness to self hosted models to operate independently of the company's proprietary API.

The company raised prices for cache hit input by 6 fold to 12 fold during the same week the framework launched. These costs affect agent loops because each step typically replays the system prompt and accumulated history. This shift addresses workloads that rely heavily on input caching as orchestration frameworks make agentic processes routine for developers.