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* fix(mcp): Add standard MCP URL pattern support for OAuth discovery (#17272) OAuth discovery endpoints now support both URL patterns: - Standard MCP pattern: /mcp/{server_name} (new) - Legacy LiteLLM pattern: /{server_name}/mcp (backward compatible) The standard pattern is required by MCP-compliant clients like mcp-inspector and VSCode Copilot, which expect resource URLs following the /mcp/{server_name} convention per RFC 9728. Changes: - Add _build_oauth_protected_resource_response() helper - Add oauth_protected_resource_mcp_standard() endpoint - Add oauth_authorization_server_mcp_standard() endpoint - Keep legacy endpoints for backward compatibility - Add tests for both URL patterns Fixes #17272 * fix(mcp): Add standard MCP URL pattern support for OAuth discovery (#17272) OAuth discovery endpoints now support both URL patterns: - Standard MCP pattern: /mcp/{server_name} (new) - Legacy LiteLLM pattern: /{server_name}/mcp (backward compatible) The standard pattern is required by MCP-compliant clients like mcp-inspector and VSCode Copilot, which expect resource URLs following the /mcp/{server_name} convention per RFC 9728. Changes: - Add _build_oauth_protected_resource_response() helper - Add oauth_protected_resource_mcp_standard() endpoint - Add oauth_authorization_server_mcp_standard() endpoint - Keep legacy endpoints for backward compatibility - Add tests for both URL patterns Fixes #17272 * Test was relocated * refactor(mcp): Extract helper methods from run_with_session to fix PLR0915 Split the large run_with_session method (55 statements) into smaller helper methods to satisfy ruff's PLR0915 rule (max 50 statements): - _create_transport_context(): Creates transport based on type - _execute_session_operation(): Handles session lifecycle Also changed cleanup exception handling from Exception to BaseException to properly catch asyncio.CancelledError (which is a BaseException subclass in Python 3.8+). Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * test(mcp): Fix flaky test by mocking health_check_server The test_mcp_server_manager_config_integration_with_database test was making real network calls to fake URLs which caused timeouts and CancelledError exceptions. Fixed by mocking health_check_server to return a proper LiteLLM_MCPServerTable object instead of making network calls. * test(mcp): Fix skip condition to properly detect claude model names The skip condition for missing API keys was checking for "anthropic" in the model name, but the test uses "claude-haiku-4-5" which doesn't match. Updated to check for both "anthropic" and "claude" model patterns. Also added skip condition for OpenAI models when OPENAI_API_KEY is not set. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * test(mcp): Fix skip condition to properly detect claude model names The skip condition for missing API keys was checking for "anthropic" in the model name, but the test uses "claude-haiku-4-5" which doesn't match. Updated to check for both "anthropic" and "claude" model patterns. Also added skip condition for OpenAI models when OPENAI_API_KEY is not set. --------- Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>