Update utils documentation

**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.

Start by locating the utils documentation and the service error-handling entry points referenced by the issue. Review how current errors are described, then define completion as documentation and error messages that provide more detail for debugging and maintenance.

Written by the indexing model from the issue text.