Design I/O for coding agents: controllable UI generation via declarations (spec/domain/craft/design/components/template) and contracts (skill/evaluator). Use for product UI—console, dashboard, agent-ops, CJK-first apps.

The DeepSeek Harness plugin for OpenPencil — preview, inspect, and edit real .op documents inside a conversation.

Task-specific React apps for DeepSeek Harness with state carried into the next Agent turn

DeepSeek Harness 外置视觉模型插件：inspect_image 把本地图片或 http(s) 图片 URL 发给任意 OpenAI 兼容端点，视觉模型看图的文字回答直接带回对话；附 Web UI 设置栏。