Matt Holloway
2b55513a9e
* update MIME types for UI resources to include profile for MCP Apps * make it a const
36 lines
1.2 KiB
Go
36 lines
1.2 KiB
Go
package github
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import (
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"context"
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ghcontext "github.com/github/github-mcp-server/pkg/context"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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)
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// mcpAppsExtensionKey is the capability extension key that clients use to
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// advertise MCP Apps UI support.
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const mcpAppsExtensionKey = "io.modelcontextprotocol/ui"
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// MCPAppMIMEType is the MIME type for MCP App UI resources.
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const MCPAppMIMEType = "text/html;profile=mcp-app"
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// clientSupportsUI reports whether the MCP client that sent this request
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// supports MCP Apps UI rendering.
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// It checks the context first (set by HTTP/stateless servers from stored
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// session capabilities), then falls back to the go-sdk Session (for stdio).
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func clientSupportsUI(ctx context.Context, req *mcp.CallToolRequest) bool {
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// Check context first (works for HTTP/stateless servers)
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if supported, ok := ghcontext.HasUISupport(ctx); ok {
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return supported
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}
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// Fall back to go-sdk session (works for stdio/stateful servers)
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if req != nil && req.Session != nil {
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params := req.Session.InitializeParams()
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if params != nil && params.Capabilities != nil {
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_, hasUI := params.Capabilities.Extensions[mcpAppsExtensionKey]
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return hasUI
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}
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}
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return false
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}
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