dsh-design-qa: Enabling Image Understanding for Text-Only Models in DeepSeek Harness

The dsh-design-qa plugin enables text-only models to “read” images by integrating multimodal tools, allowing them to perform visual judgments within the product design loop. It supports on-demand invocation, does not consume the main model's context, and includes built-in evaluation benchmarks. Installation requires configuring an Alibaba Cloud Bailian API Key, and it defaults to using the qwen3.8-max model. The plugin emphasizes that “visibility does not equal judgment capability” and should be used according to specific scenarios.