whois

whois is a command for Claude Code from fatihkan/badi. It costs 0 tokens per session (284 once invoked), scanned A, original, MIT.

A domain WHOIS lookup command that checks public registration details for a website name, including its registrar, creation date, expiry date, locks, and name servers.

In plain words
What is it for?
Use it to review domain ownership details, renewal timing, transfer and update locks, and name-server information.
Why use it?
It avoids manually searching several domain records and helps spot approaching expiry or weaker protection against unauthorised transfers and changes.

Command for Claude Code

Written for Claude Code: installed under .claude/.

Part of the badi plugin — 81 skills, 86 commands, 30 agents, 7 hooks shipped together

Good fit Use it to review domain ownership details, renewal timing, transfer and update locks, and name-server information.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/fatihkan/badi/whois
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.

Clone the repo
git clone --depth 1 https://github.com/fatihkan/badi

Made for: Claude Code.

Or install badi, the plugin that ships this one along with the rest of its 81 skills, 86 commands, 30 agents, 7 hooks.

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.

agentmods badge for whois

README.md
[![agentmods](https://agentmods.dev/badge/commands/fatihkan/badi/whois.svg)](https://agentmods.dev/commands/fatihkan/badi/whois)
Your own site
<a href="https://agentmods.dev/commands/fatihkan/badi/whois"><img src="https://agentmods.dev/badge/commands/fatihkan/badi/whois.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 284 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00284
Opus 5 $0.00000 $0.00142
Sonnet 5 $0.00000 $0.00057
Haiku 4.5 $0.00000 $0.00028

Measured yesterday against content hash ecae5aa3d4aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

whois 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 yesterday.

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.

.claude/commands/whois.md · 42 lines

What it actually says

Domain WHOIS command. Checks registration date, expiry, registrar, and transfer lock status.

Required Tools

  • Bash (badi whois command invocation)

Procedure

Step 1: Run the Badi CLI

badi whois [domain]

Step 2: Interpret the Result

Key fields:

  • Registrar: Domain provider
  • Creation Date: First registration
  • Expiration Date: Renewal time
  • Domain Status: Transfer Lock, Update Lock states
  • Name Servers: DNS management

Step 3: Warnings

  • Expiry < 30 days: "Urgent renewal needed"
  • Expiry 30-90 days: "Plan the renewal"
  • No Transfer Lock: "Enable the lock against domain hijacking"
  • No Update Lock: "I recommend the lock for critical domains"

Step 4: Full Domain Health Check

Suggest the triple check to the user:

  • /whois [domain] — already done
  • /dns-audit [domain] — DNS and email security
  • /ssl-check [domain] — SSL certificate

Or do it all at once: "I can run the full domain health check — want me to run all 3 commands?"

Example

/whois example.com
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.

  1. yesterday First seen · 42 lines · 0 tokens per session scan A ecae5aa3d4aa

Subscribe to this mod's changes

whois is a command published in the GitHub repository fatihkan/badi (7 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 284 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 2026-09-06.