prompt-polish: DeepSeek Harness Prompt Optimization Assistant

The DSH ecosystem plugin prompt-polish is designed to address vague input drafts using a prompt engineering agent. It supports one-click polishing and completion, multi-round iterative rewriting, and version rollback, with features including automatic input-box population, built-in diagnostic logging, and a zero-build workflow. Users can install it via the dsh command, configure an OpenAI-compatible API (such as DeepSeek or Ollama), or use the built-in routing, making it convenient to use and easy to uninstall.