How do I install the Zdns skill?

Run npx skillmds@latest add javimosch/zdns in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Zdns skill do?

Use this skill when the user wants to perform DNS lookups, check DNS records, query nameservers, or investigate DNS infrastructure. It is listed under Coding & Dev Tools on SkillMD.

SkillMD's automated safety review verdict for this skill is PASS. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Zdns?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

javimosch (@javimosch) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Zdns by javimosch — Agent Skill

Name: Zdns
Author: javimosch

File contents

zdns Plugin

Fast DNS lookup library and CLI tool. Perform DNS lookups with high performance and multiple output formats.

Commands

DNS Lookup

zdns lookup dns — Perform DNS lookup

Utility

zdns _ _ — Passthrough to zdns CLI

Usage Examples

"Lookup DNS for this domain"
"Check MX records"
"Query nameserver"
"Perform DNS reconnaissance"

Installation

brew install zdns

Examples

# Basic A record lookup
zdns lookup dns example.com

# Lookup specific record type
zdns lookup dns example.com -t MX

# Use custom nameserver
zdns lookup dns example.com -n 8.8.8.8

# Lookup AAAA records
zdns lookup dns example.com -t AAAA

# Lookup TXT records
zdns lookup dns example.com -t TXT

# NS records
zdns lookup dns example.com -t NS

# Any zdns command with passthrough
zdns _ _ example.com A
zdns _ _ -t MX -n 1.1.1.1 example.com

Key Features

Fast - High-performance DNS lookups
Multiple record types - A, AAAA, MX, NS, TXT, CNAME, etc.
Custom nameservers - Query specific DNS servers
Batch processing - Process multiple domains
Multiple formats - JSON, text, dig-style input
Module system - Extensible lookup modules
IPv6 support - Full IPv6 DNS support
Recursive mode - Local recursion option

Supported Record Types

A - IPv4 addresses
AAAA - IPv6 addresses
MX - Mail exchange
NS - Nameserver
TXT - Text records
CNAME - Canonical name
SOA - Start of authority
PTR - Pointer records
And more

Notes

Default nameservers from system
Can specify custom nameservers
Great for DNS reconnaissance
Used by security researchers

Frequently asked questions

Zdns