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SEP-1865 MCP Apps Extension sample implementation
- init0 10mo agoSEP-1865 MCP Apps Extension, even though in draft currently, will change how AI agents deliver interactive experiences. The idea: MCP tools return HTML/CSS/JS directly. The client renders it in a sandboxed iframe. That's it. Your AI agent calls a tool, gets back a full interactive UI. Dashboard, form, chart - whatever you need. How it works: - Tool returns text/html+mcp resource - Client renders in iframe with CSP - UI talks back via JSON-RPC 2.0 postMessage - Fully sandboxed, secure by default Built a sample implementation with vanilla Web Components. This is where MCP is heading.