WebMCP Proposal: Standard for AI Agents to Interact with Web Pages Structurally

rseroter · x · 2026-08-29

Angie Jones introduced WebMCP, a standard for web developers to publish structured tools, enabling AI Agents to directly invoke website capabilities.

Core Problem: Current Agents need screenshots or DOM parsing to interact with pages, increasing token costs and error rates.

Solution: Using document.modelContext.registerTool, developers can register functions with names, descriptions, and input schemas. Agents can call these functions (e.g., search-articles) directly instead of simulating clicks.

Code Example: The post provides a complete JS code snippet for registering a search-articles tool, defining the input schema and execution logic.

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