Add rate limiting for monitoring

**Problem**
When working with services, 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 monitoring and service error-handling paths, then clarify the intended rate-limit behavior and the detailed messages required; done means monitoring is rate-limited and its errors provide useful debugging context.

Written by the indexing model from the issue text.