Add rate limiting for monitoring

**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 files, tests, or entry points are named. Start by locating the route handling and current error-message code, then clarify whether the goal is monitoring rate limiting or more descriptive route errors; done should be defined by the maintainer before implementation.

Written by the indexing model from the issue text.