Support compression 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.

Start by locating the compression configuration and the error-handling code under lib. The issue does not name files, tests, or a specific failure, so first clarify whether the intended work is compression configuration, more descriptive errors, or both. Done should include an agreed scope and tests or reproducible checks covering it.

Written by the indexing model from the issue text.