Marwan Atef (@Marwan_3atef) reported a CopilotKit product change: every useFrontendTool can opt into WebMCP so browser agents such as ChatGPT Atlas discover and call frontend tools instead of only screenshotting the page. Same React API, plus readOnlyHint annotations. The official blog post Introducing WebMCP for CopilotKit is live.

Key Takeaways

  • ✓useFrontendTool can opt into WebMCP so browser agents call frontend tools.
  • ✓Same React API with readOnlyHint annotations.
  • ✓Official blog: Introducing WebMCP for CopilotKit.
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