Support pagination configuration

**Problem**
When working with lib, 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 names lib and asks for pagination configuration, but does not identify a file, entry point, or test. Start by locating the pagination and error-handling code under lib; done requires an agreed configuration path and descriptive errors, with tests covering the behavior.

Written by the indexing model from the issue text.