Skill

discover-printers-bonjour

Use when you want to scan the LAN for printers via mDNS/Bonjour.

npx claudepluginhub danielrosehill/claude-code-plugins --plugin network-cups

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Scan the local network for printers advertising via mDNS (Bonjour/Avahi). Return a table of discovered devices.

SKILL.md

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Last CommitApr 30, 2026

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Discover Printers via Bonjour

Scan the local network for printers advertising via mDNS (Bonjour/Avahi). Return a table of discovered devices.

When to use

User wants to find printers on the LAN by name/model
Printer not yet registered in CUPS
Bonjour/mDNS is available on the network
Pre-flight before running add-printer

Inputs to gather

None (uses local avahi-daemon and network broadcast)

Procedure

Check avahi-daemon. Verify the service is running:

systemctl is-active avahi-daemon

If inactive, output:

avahi-daemon is not running.
To start it: sudo systemctl start avahi-daemon
To enable on boot: sudo systemctl enable avahi-daemon

Stop here until the user confirms the service is running.

Browse for printers. Run with a 5-second timeout:
```
timeout 5 avahi-browse -rt _ipp._tcp _ipps._tcp _printer._tcp 2>/dev/null || true
```
Parse lines matching = (result/resolved) into a table.
Extract fields. For each result line, extract (using regex or field split):
- name (service name, before @)
- hostname (host field, or derive from full address.local record)
- IPv4 (address field, IPv4 only)
- port (port number)
- model (from ty= TXT field, e.g. "HP LaserJet Pro M404n")
- rp (resource path, e.g. /ipp/print, from TXT field)

Format as table:

Name                 Host              IPv4            Port  Model                    Path
Office-HP            printer01.local   192.168.1.50    631   HP LaserJet Pro M404n    /ipp/print
...

Handle empty result. If no printers found after 5 seconds:

No printers found via Bonjour.
Possible reasons:
- Printer does not support mDNS/Bonjour.
- Printer is on a different VLAN or network segment.
- Bonjour advertisement is disabled on the printer.

Try: discover-printers-arp (ARP-based network scan)

Output / side effects

Printer table to stdout.
No local files modified.
Read-only; no side effects.

Safety / constraints

Read-only discovery; safe to run repeatedly.
mDNS broadcast may not cross VLANs; if printers are segregated, try discover-printers-arp.