Domain check

Skill jorjani/product-squad/skills/domain-check

Domain availability search across TLD tiers — given a concept or a list of names, brainstorm creative variations and check .com → .co/.app → .so/.io for what's actually free. Uses whois for .com/.co/.io and DNS dig for .app/.so (where whois is unreliable). Use when validating a name before buying. Pairs with /namer (score the available winners on the 9-category rubric).From its SKILL.md

Install

npx -y skills add jorjani/product-squad --skill domain-check

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One thing to look at

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SKILL.md

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/domain-check — Domain Availability Search

Check domain availability for a naming concept. Generate creative variations and check across TLD tiers.

Input: $ARGUMENTS

The user provides a concept, theme, or specific domain names to check.

TLD Tiers (check in order)

Tier	TLDs	Cost/yr	When to check
1	.com	~$10	Always check first
2	.co, .app	~$12-14	Check if .com unavailable
3	.so, .io	~$12-33	Check if tiers 1-2 exhausted

.app enforces HTTPS (Google registry). .io is the most expensive (~$33/yr).

Workflow

Parse input — if specific domains given, check those. If a concept/theme, brainstorm 20-30 creative variations first.
Brainstorm variations (when given a concept):
- Exact name + common prefixes (get, try, use, go, my, the, join)
- Short abbreviations and portmanteaus
- Made-up/invented words inspired by the concept
- Compound words (two real words: WriteStack, Mailchimp, InkBloom)
- Metaphorical names (forge, dojo, craft, mint, hive)
- Keep most names under 12 characters
Check availability:
- whois TLDs (.com / .co / .io): whois is authoritative here. Batch and parse the status line — never whois | grep blindly (false positives on rate-limit and redacted output):
```
for d in name1.com name2.com name3.io; do
  if whois "$d" 2>/dev/null | grep -qiE 'No match|NOT FOUND|Status: free|No Data Found'; then
    echo "LIKELY AVAIL: $d"
  else
    echo "TAKEN: $d"
  fi
done
```
- DNS TLDs (.app / .so): whois returns unreliable "MAYBE" for these. Use a DNS check instead and mark results "likely available, verify before purchasing":
```
for d in name1 name2; do
  result=$(dig +short "${d}.app" 2>/dev/null)
  [ -z "$result" ] && echo "LIKELY AVAIL: ${d}.app" || echo "TAKEN: ${d}.app -> $result"
done
```
- Run in batches of ~15 to avoid timeouts and registrar rate limits.
- A no-DNS-record result is not a guarantee a domain is unregistered — confirm at a registrar before buying.
Present results in a table:
- Only show AVAIL domains (mention the count checked/taken)
- Group by TLD tier, then by category
- Include character count and a one-line vibe note
If the user wants evaluation, run the available names through /namer for scoring.

Rules

whois for .com/.co/.io; DNS dig for .app/.so — never trust raw whois | grep alone.
Start with Tier 1, expand to lower tiers only when needed.
If fewer than 5 available across all tiers, automatically expand the search.
Be honest about what's taken — don't give false hope.