DSH-Vision-Bridge: Adding Image Understanding to DeepSeek Harness's Text-First Model

DSH-Vision-Bridge is an MIT-licensed plugin for DeepSeek Harness, designed to provide image understanding capabilities to text-first models. This plugin bridges image requests to external vision APIs (supporting Gemini, OpenAI, and Anthropic-compatible interfaces) and returns only the analysis results in text form, preventing image blocks from being directly forwarded to upstream models. Its core advantage lies in preserving the original model list and selection experience, with independent management of vision bridge preferences through the "glasses" control next to models, without interfering with model selection logic. The plugin supports configuring multiple isolated vision providers in settings, strictly limiting usage to HTTPS endpoints, and keeping sensitive information such as API keys on the Host side. Installation requires compatibility with Harness 0.1.x and Node.js 2.