Support pagination configuration

**Problem**
When working with routes, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

No file, test, or entry point is named. Start by locating the route-handling code and existing pagination configuration, then clarify the expected behavior and error cases with the maintainers; the issue currently provides no concrete completion criteria.

Written by the indexing model from the issue text.