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SKILL verified MIT Self-run

Domain Whois

skill-stevederico-skills-domain-whois · by stevederico

Check domain name availability across 12 TLDs via direct WHOIS/RDAP lookups. No external service needed. Use when the user asks about domain availability, wants to find a domain name, or mentions registering a domain.

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Install

$ agentstack add skill-stevederico-skills-domain-whois

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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[![AgentStack Verified](https://agentstack.voostack.com/badges/verified.svg)](https://agentstack.voostack.com/security/report/skill-stevederico-skills-domain-whois)

Reliability & compatibility

✓ Security review passed
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Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

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How agent discovery & health will work →
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About

Domain WHOIS Checker

Check domain availability across 12 TLDs via direct WHOIS and RDAP lookups. No API dependency.

When to use

  • User asks "is example.com available?"
  • User wants to find available domain names
  • User is brainstorming project names and wants to check domains

How to check

Run the bundled script:

scripts/check.sh

Pass the base name only (no TLD). The script checks all 12 TLDs in parallel: .com, .net, .org, .io, .dev, .app, .co, .xyz, .ai, .shop, .site, .tech

Output format

Pipe-delimited, sorted available first:

example.dev|Available
example.app|Available
example.com|Taken
example.shop|Unknown

Presenting results

Format as a table:

| Domain | Status | |--------|--------| | example.dev | Available | | example.app | Available | | example.com | Taken |

Checking multiple names

Run the script once per name. Can run in parallel:

scripts/check.sh name1 &
scripts/check.sh name2 &
wait

How it works

  • 10 TLDs checked via whois -h (port 43 TCP)
  • .dev and .app checked via RDAP (HTTP to Google registry)
  • All 12 lookups run in parallel
  • Results parsed for known available/taken patterns

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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