Three bugs fixed for social-login users connecting Claude.ai via OAuth:
1. User OAuth clients now allow 'admin' scope by default — previously
defaulted to ['read', 'write'], causing invalid_scope when Claude.ai
requests 'admin' scope during authorization.
2. Fix JWT tokens with 'aud' claim being rejected by middleware — when
Claude.ai sends RFC 8707 resource parameter, the issued JWT gets an
aud claim. validate_access_token() now sets verify_aud=False to
prevent PyJWT InvalidAudienceError from silently marking valid tokens
as invalid in _is_valid_token().
3. Fix NameError in user_mcp_handler tools/call scope check — key_info
was only defined in the mhu_ auth path but referenced in tools/call
for both paths. Replaced with key_scopes variable set by both mhu_
and JWT auth paths.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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