Web platform features explorer

Form-associated WebMCP attributes

The toolname, tooldescription, and toolautosubmit HTML form element attributes register actions that can be called by in-browser AI agents or browser extensions. Also known as declarative WebMCP.

Status

Limited availability

MDN documentation

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Specifications

Browser support

  • Chrome ❌
  • Chrome Android ❌
  • Edge ❌
  • Firefox ❌ Vendor position : unknown
  • Firefox for Android ❌ Vendor position : unknown
  • Safari ❌ Vendor position : unknown (concerns: duplication, internationalization, privacy, security, venue, use cases, portability, API design)
  • Safari on iOS ❌ Vendor position : unknown (concerns: duplication, internationalization, privacy, security, venue, use cases, portability, API design)

Usage (according to Chrome Platform Status)

~0.000% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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View as JSON | Edit this feature | Report an issue | Web-features entry: source, dist