disk-guardian
Run S.M.A.R.T. diagnostics on all drives, parse health indicators, maintain a history log, and flag drives showing early failure patterns. Generates health summaries and "drives ranked by risk" reports. Works on macOS and Linux. Use when the user asks about disk health, drive health, SMART diagnostics, hard drive status, SSD health, disk status, whether their drives are ok, or wants to check for failing drives.