dsh-mcp-apps

dsh-mcp-apps is a pivotal plugin in the DeepSeek Harness ecosystem, enabling Harness to act as an MCP Apps host and seamlessly integrate remote or local MCP server applications into the conversation interface. This plugin addresses the lack of interactive visualization for MCP tools in Harness, allowing model inference to transcend plain text output and support the presentation of rich interactive applications.

The core capability lies in its dual-face design: the Host half connects to MCP servers, manages network traffic, and registers tools to ensure model accessibility, while the Web Client half focuses on rendering tools with UI metadata into sandboxed interactive apps. It supports standard MCP extension negotiation, multiple transports such as stdio and HTTP, and tool classification, providing a flexible development experience with secure isolation.

For MCP server developers, dsh-mcp-apps offers a platform to easily showcase and test tool functionality. For DeepSeek Harness users, it enhances practicality by allowing the embedding of custom applications like data visualizations or simulators. Overall, any developer or end-user aiming to boost the interactivity of model inference, develop MCP applications, or integrate multimedia tools will benefit from this plugin.