Support monitoring configuration

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

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

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

The issue does not name any files, tests, or entry points. Start by locating the core error-handling path and any existing monitoring configuration, then clarify the expected configuration and error-message behavior before implementation; done should include detailed errors and working monitoring configuration.

Written by the indexing model from the issue text.