modao-proto-mcp is a prototype generation service built on the Model Context Protocol (MCP). It specializes in HTML code generation, design description expansion, and HTML import. The server accepts natural language design requests and produces complete HTML code suitable for modern, responsive layouts, including CSS and real image URLs. It also can expand a brief requirement into a detailed design specification, enabling teams to align on expectations before implementation. Generated HTML can be imported into a user's personal workspace via an import key, enabling seamless asset management and reuse. The MCP server adheres to the MCP standard, ensuring compatibility with MCP clients and tooling. It supports multiple parameter formats and robust error handling to improve reliability across diverse client configurations. The architecture is designed for extensibility, allowing new tools to be added by subclassing a common base tool and registering it in the server. The repository also provides examples and configuration guidance for popular MCP clients (Claude Desktop, Cursor, Windsurf, Claude Code), promoting rapid integration and workflow optimization.