Add rate limiting for notifications

**Problem**
When working with models, 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 body does not name any files, tests, or entry points. First clarify whether the work is rate limiting for notifications, as the title says, or more descriptive model error messages, as the body says; then identify the affected CLI component and define acceptance criteria for completion.

Written by the indexing model from the issue text.