computer-user: DeepSeek Harness Computer Control Plugin

computer-user is a plugin within the DeepSeek Harness (DSH) ecosystem, designed to address the limited visual capabilities of text-only models. It enables text-only LLMs to read the screen via local image analysis tools and directly control the operating system using Win32 SendInput for mouse clicks, keyboard input, and window operations. The plugin supports core features such as screenshots, multi-monitor support, UTF-16 text input, and keyboard shortcuts. All operations are performed locally without external API calls, ensuring strong privacy protection. It is particularly suited for models such as DeepSeek V4 Flash, enabling a local observe–act–verify loop. With easy installation and headless mode support, it is an ideal choice for desktop automation and privacy-conscious use cases.