WebMCP Declarative Forms

Before writing code

Fetch live docs:

1. Fetch https://webmachinelearning.github.io/webmcp/ for the declarative form attribute specification
2. Web-search webmcp declarative form toolname tooldescription HTML attributes for attribute syntax and behavior
3. Web-search site:developer.chrome.com webmcp declarative forms for Chrome implementation details
4. Web-search webmcp SubmitEvent agentInvoked for the agent submission event API

Conceptual Architecture

What Declarative Forms Are

The Declarative API lets developers make existing HTML forms agent-ready by adding attributes — no JavaScript required for basic cases. Chrome auto-extracts form tools and exposes them to agents.

HTML Attributes