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

{
Extending the proxy with user-defined routing is broader and riskier: it requires a stable extension contract, lifecycle and concurrency handling, validation, observability, failure semantics, and compatibility across routing paths. The other change is comparatively localized to configuration resolution and deployment expansion.
}
https://github.com/berriai/litellm/issues/25297 3:1 https://github.com/berriai/litellm/issues/28125