Sorting LiteLLM GitHub issues by difficulty to implement. Higher = harder.

{
The left issue is harder because it likely spans Vertex-specific endpoint routing, model translation, authentication, and compatibility testing across deployment modes. The right issue is more contained: tracing one identity value through an existing MCP lifecycle with focused regression coverage.
}
https://github.com/berriai/litellm/issues/22965 3:2 https://github.com/berriai/litellm/issues/31609