A tool for looking up DNS records, which tell the internet where a domain's services are located and how email is routed. It can query records such as website addresses, mail servers, text entries, and name servers.

Use it to inspect a domain's A or AAAA address, MX mail settings, TXT records, NS name servers, CNAME aliases, or SOA information, including through a custom DNS server.

It provides DNS answers without requiring separate command-line tools or manually choosing a DNS server. The lookup requires network access.

dns-lookup — Skill for Claude Code and Codex by fisker086/AIOps

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add fisker086/AIOps --skill dns_lookup

Clone the repo

git clone --depth 1 https://github.com/fisker086/AIOps

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/fisker086/aiops/dns_lookup/github.svg)](https://agentmods.dev/skills/fisker086/aiops/dns_lookup)

Your own site

<a href="https://agentmods.dev/skills/fisker086/aiops/dns_lookup"><img src="https://agentmods.dev/badge/skills/fisker086/aiops/dns_lookup/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/fisker086/aiops/dns_lookup"><img src="https://agentmods.dev/badge/skills/fisker086/aiops/dns_lookup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 154 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00154
Opus 5.5	$0.00000	$0.00062
Sonnet 5.5	$0.00000	$0.00031
Haiku 4.5	$0.00000	$0.00015

Measured 2mo ago against content hash 205b58d15675, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dns-lookup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/dns_lookup/SKILL.md · 21 lines

What it actually says

DNS Lookup Skill

Provides DNS query operations:

Query A, AAAA, MX, TXT, NS, CNAME, SOA records
Specify custom DNS server
Show full DNS response details

Use builtin_dns_lookup tool with fields:

domain: target domain (required)
record_type: DNS record type (default: A)
dns_server: (optional) custom DNS server to query

Note: Requires network access.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 21 lines · 0 tokens per session scan A 205b58d15675

Subscribe to this mod's changes

dns-lookup is a skill published in the GitHub repository fisker086/AIOps (22 stars, last pushed 4mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 154 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Cloud DevOps and cloud

dns-lookup next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
dns-lookupfisker086/AIOps	Skill	22	4mo ago	Apache-2.0	A	0	Claude Code, Codex
gke-compute-classesgoogle/skills	Skill	22k	yesterday	Apache-2.0	A	83	Claude Code, Codex
gke-reliabilitygoogle/skills	Skill	22k	yesterday	Apache-2.0	A	85	Claude Code, Codex
gke-workload-securitygoogle/skills	Skill	22k	yesterday	Apache-2.0	A	171	Claude Code, Codex
cloud-architectJeffallan/claude-skills	Skill	12k	7d ago	MIT	A	71	Claude Code
nemo-automodel-launcher-configNVIDIA/skills	Skill	3.9k	yesterday	Apache-2.0	A	30	Claude Code
azure-mgmt-botservice-dotnetmicrosoft/skills	Skill	3.2k	yesterday	MIT	A	78	Claude Code