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DNS Tools

Resolve DNS records (A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, CAA), PTR reverse, and WHOIS.

Skill by lordmacu

IndexedApache-2.0★ 8
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/lordmacu-dns-tools

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Resolve DNS records (A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, CAA), PTR reverse, and WHOIS.

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/dns-tools

What's inside

Skill name
DNS Tools
Description
Resolve DNS records (A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, CAA), PTR reverse, and WHOIS.
License
Apache-2.0
Instructions
30 lines in SKILL.md · view on GitHub

Agent Skills spec issues

  • name: only lowercase letters, digits and single hyphens allowed
  • name: "DNS Tools" does not match folder "dns-tools"

Files (1)

  • SKILL.md

SKILL.md (first lines)

# DNS Tools

Low-level DNS lookups and WHOIS. Backed by the `dns-tools` extension using
`hickory-resolver` (pure Rust, no `dig` binary).

## Use when

- "What's the A/MX/TXT/NS record for `domain.tld`?"
- "Reverse lookup `1.2.3.4`"
- "Who owns this domain?" (WHOIS)
- Verifying DNS propagation after a Cloudflare change

## Do not use when

- Modifying records — use `cloudflare` (or the relevant provider skill)
- Deep port scans or HTTP probing — use `endpoint-check` / `fetch-url`

## Tools

- `status` — resolver info
- `resolve` — `name` + optional `type` (A default). Supports A/AAAA/CNAME/MX/TXT/NS/SOA/SRV/CAA
- `reverse` — `ip` → PTR names
- `whois` — `domain`; queries `whois.iana.org` then follows referral to the TLD server

## Notes

- Resolver reads `/etc/resolv.conf`; falls back to Cloudflare 1.1.1.1 if missing
- WHOIS body is truncated at 8 KB

From lordmacu/nexo-rs, Apache-2.0.

More from lordmacu/nexo-rs

Signals

Stars
8
Forks
4
Open issues
0
Last commit (this folder)
Apr 24, 2026 (6 months ago)
Last release
May 11, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

DNS Tools skill. Agent Mart. https://agentmart.dev/skills/lordmacu-dns-tools (last updated 2026-10-24)