Optimize hooks for large datasets

**Problem**
When working with handlers, 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, test, or entry point is named. Start by locating the hook and handler error paths in the repository, then reproduce the reported behavior and determine which messages lack useful detail. Done means the relevant error cases provide more descriptive messages and the existing checks still pass.

Written by the indexing model from the issue text.