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jubnl
69432443b7
Clients such as ChatGPT probe the flat well-known URL on every fresh discovery cycle (i.e. after a full disconnect/reconnect where cached OAuth state is cleared). The SDK's mcpAuthMetadataRouter only serves the path-based form /.well-known/oauth-protected-resource/mcp, so the flat probe returned 404. Without the resource metadata, ChatGPT fell back to the issuer URL as the resource parameter (https://…/ instead of https://…/mcp). The authorize handler then rejected it with invalid_target and redirected back to ChatGPT's callback with an error — showing the user the TREK home page instead of the consent form. Add an explicit GET handler for the flat URL that returns the same protected resource metadata, so the resource URI is discovered correctly on the first probe.