During the month, contributed to the aiidateam/aiida-core repository by developing an enhancement for the Verdi CLI that improves error messaging related to import violations. This feature focused on delivering clearer, more actionable feedback to users encountering import boundary errors, thereby reducing confusion and guiding correct usage within the CLI. The work emphasized robust error handling and thoughtful CLI user experience design, leveraging Python for both implementation and interface logic. By addressing a common pain point in developer workflows, the changes supported faster issue resolution and helped lower support demands, demonstrating a strong grasp of CLI development and developer-facing messaging.