megachangelog
Feature

Browser Run adds WebMCP to Kitesurf and moves to document.modelContext

WebMCP now works in both Kitesurf and Lab sessions using the document.modelContext API from the WebMCP Community Group draft. Lab sessions no longer expose navigator.modelContextTesting, and you can list and run page tools via Chrome DevTools, AI agents, or CDP clients.

WebMCP now works in Kitesurf sessions as well as Lab sessions. Both backends use the document.modelContext API from the WebMCP Community Group draft ↗︎. Lab sessions no longer expose navigator.modelContextTesting.

To list and run page tools:

  • Chrome DevTools: Use the Application > WebMCP panel in the live view of a Lab session or in the Kitesurf playground ↗︎.
  • AI agents: Start Chrome DevTools MCP with the --category-experimental-webmcp flag to add the list_webmcp_tools and execute_webmcp_tool tools.
  • CDP clients: Use the WebMCP CDP domain.
webmcpbrowser-rundevtoolsapikitesurf

Source: original entry ↗

More from Cloudflare

Follow Cloudflare to get its new changes in your feed and email digest.

Feature

Cloudflare API MCP server now serves Cloudflare skills

The Cloudflare API MCP server now integrates with the Skills over MCP extension, allowing MCP clients to discover and access Cloudflare skills. Users can add the MCP server endpoint to compatible MCP clients to access these skills.

apimcpagentsintegrationextension
Feature

WAF failed detections field now available in Rules

A new cf.appsec.request.failed_detections field lets you control how rules handle requests when security detections fail. This array of detection IDs covers content scanning, WAF attack scoring, attack signatures, leaked credentials, and AI-based PII/prompt injection/custom topic detection failures, and works across custom rules, rate limiting rules, and request header transform rules.

wafrulessecurityapidetections
Improvement

Markdown for Agents: More efficient in-process streaming conversion

Markdown for Agents now uses an in-process streaming engine at the edge to convert HTML, reducing overhead and memory use. The conversion limit increased from 2 MiB to 6 MiB, and token count headers are no longer generated.

markdownagentsperformancestreamingapi
See all Cloudflare changes →