Claude refuses <base> in panels, so relative addresses reached the
host's site: styles, Cesium assets and API calls all failed. The panel
now points fetch, XHR, beacons, images, media, links, workers and added
style url()s at the app's server, and declares its policy under OpenAI's
widget key as well.
Hosts such as Claude do not let a panel frame other sites, so the panel
now loads the app's page, styles and scripts into itself in inline embed
mode, and declares the app and map providers as resource and connect
domains. The dev server answers panel origins with CORS.
When a host's content security policy refuses part of the panel, such as
its frame, the panel now names the blocked directive and address instead of
waiting until its load timeout.
The panel sent clientInfo and capabilities in ui/initialize, where the MCP
Apps schema requires appInfo, so hosts such as Claude rejected the handshake
and never showed the panel. It now sends exactly appCapabilities, appInfo and
protocolVersion, sends initialized without parameters, says so when a host
rejects it, and offers the link when God's Eye View does not load within 20
seconds. Checked against the MCP Apps SDK's own host bridge.
show_on_globe replaces open_in_gods_eye_view and names an MCP Apps view, a
ui:// panel that loads the app in embed mode and posts each later view to it,
so the globe in the conversation changes without reloading. It also takes a
view another answer returned. Tools can declare a UI resource, and the MCP
adapter serves resources/list and resources/read and lists each tool's
resource in _meta.ui.resourceUri.
Sameh Khamis