Printer skill

**Judgment:** Strong, technically capable macOS-only printer management skill built around CUPS/IPP. Well-suited for scripted control and diagnostics of network printers, but tightly bound to a specific OS and command-line environment. **What it does well** - Discovers printers using multiple mechanisms (Bonjour/AirPrint, CUPS backends, IPP). - Adds printers using driverless IPP Everywhere queues, sets defaults, and configures options. - Handles printing (files/text), copies, duplexing, media sizes, and grayscale. - Manages queues and printer state: view jobs, cancel jobs, enable/disable/accept/reject printers. - Provides deep diagnostics via `ipptool`, CUPS logs, and basic connectivity checks (`curl`, `nc`). - Can wake printers from sleep and implement simple keep-alive polling. **Key risks / limitations** - **Platform-specific**: Designed for macOS with CUPS and the corresponding CLI tools; not portable to non-CUPS or non-macOS environments. - **Permissions & privileges**: Some operations (e.g., `lpadmin` with options or server-side defaults) may require `sudo`; failures must be handled gracefully. - **Network / protocol variability**: Discovery and status depend on IPP, Bonjour, and sometimes SNMP, which may be disabled or firewalled in real environments. - **Optional external tools**: SNMP toner checks require `net-snmp` (via Homebrew), which is an extra dependency beyond core CUPS. **Best-fit scenarios** - macOS automation or assistant workflows that need to set up and control IPP/IPP Everywhere printers programmatically. - Power users or admins managing home/office network printers via scripts rather than GUI. - Troubleshooting stuck queues, disabled printers, or connectivity issues where CUPS/IPP diagnostics are valuable. **Avoid / be cautious** - Cross-platform workflows or containers where CUPS and macOS-specific tooling are unavailable. - Security-sensitive networks where SNMP or open printer web UIs are tightly regulated; limit or disable those sub-features if needed.