webmcp-browser-agents

Expert in WebMCP (Web Model Context Protocol) — the browser-native API for agent-ready websites. Deep conceptual knowledge of navigator.modelContext, registerTool, declarative form annotations, tool schemas, human-in-the-loop interactions, requestUserInteraction, tool annotations, commerce tool patterns, browser session authentication, security best practices, provideContext, MCP-B polyfill, and backend MCP/UCP bridge integration. Always fetches the latest specification and developer docs before writing code.

Implement WebMCP authentication patterns — browser session inheritance, cookie-based auth, role-gated tool registration, and conditional tool exposure. Use when managing which tools are available based on user authentication state.

Implement commerce-specific WebMCP tools — product search, cart management, checkout, returns, subscriptions, and support. Use when building agentic shopping experiences on e-commerce websites.

Implement the WebMCP provideContext API — bulk tool registration, contextual metadata, page state sharing, and dynamic context updates. Use when providing rich context and multiple tools to agents simultaneously.

Implement the WebMCP Declarative API — annotate HTML forms with toolname and tooldescription attributes for automatic tool extraction. Use when making existing forms agent-ready with minimal code changes.

Apply WebMCP cross-cutting development patterns — SPA routing, error handling, performance optimization, multi-site agents, accessibility, SEO, and production deployment. Use when architecting WebMCP-enabled sites or solving cross-cutting concerns.

1 hook across 1 event