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dd90c6d424
Root cause: claude.ai's MCP connector (spec 2025-06-18) requires the resource server to publish Protected Resource Metadata and return WWW-Authenticate on 401s to bind the /mcp endpoint to its AS. Without these, it silently shows no tools after OAuth. - Add /.well-known/oauth-protected-resource (RFC 9728) with addon gating - Emit WWW-Authenticate: Bearer resource_metadata=... on 401/auth-failure 403s - Open CORS (origin: *) on both .well-known/* endpoints per RFC 8414/9728 - Accept resource parameter at authorize + token endpoints (RFC 8707) - Store audience on oauth_tokens; validate on every MCP request - Refresh tokens inherit audience; add resource_parameter_supported to AS metadata - DB migration: ADD COLUMN audience TEXT to oauth_tokens - Gate collab MCP tools/resources by chat/notes/polls sub-features individually - Invalidate MCP sessions when collab sub-features are toggled in admin - Update test mocks and MCP.md