Worked on the wal-g/wal-g repository to address a reliability issue in the backup-list --json command when storage was empty. Focused on Go development, the solution ensured that the command now returns a valid empty JSON array instead of invalid output, preventing failures in scripts and dashboards that depend on deterministic backup inventories. The approach included correcting the JSON output logic, implementing robust error handling, and expanding test coverage to include regression and edge cases. Emphasis was placed on CLI tool reliability and automated testing, resulting in more stable automation workflows and accurate reporting for backup management scenarios.