Update helpers documentation

**Problem**
When working with components, 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 file or test is named. Start by locating the helpers documentation and the component error-handling entry points, then compare the current messages with the issue's goal. Done means the relevant documentation is updated and component errors provide more descriptive messages, with tests or existing checks passing.

Written by the indexing model from the issue text.