Repository Issue Activity (beta feature)

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#634 Spec 2026-01-26: misleading "View initialize" example uses `initialize` + `clientInfo` instead of `ui/initialize` + `appInfo`

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#633 bug: Safari/WebKit event.source identity mismatch in sandbox.ts relay breaks PostMessageTransport

#476 ontoolinput is not consistently called

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#199 threejs-server example cannot work within current spec due to `unsafe-eval`

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#35 Adopt WebMCP for Agent -> UI communication

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#374 Map server does not work with clients that correctly enforce CSP

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#143 setupSizeChangedNotifications reports size before content is ready, causing widgets to collapse

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#482 MCP-Apps UI Widget Host Runtime Not Starting After Successful `resources/read`

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#615 Claude MCP App renders blank (works in Inspector)

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