/domain — Brainstorm + check available .com domains

Multi-tool workflow to find a great, affordable, available .com for a new project. Built on Laura Roeder's rule: work backwards from what's actually available — don't fall in love with a name first (source).

Defaults to .com only. Only deviate (.dev, .co, .io, .ai) if the project is dev-tooling-only or the user explicitly asks.

Step 0 — Environment checks

Verify these before proceeding (surface install commands if missing, don't try to install silently):

Tool	Check	Install if missing
Vercel CLI	`vercel whoami`	`npm i -g vercel && vercel login`
whois	`which whois`	`brew install whois` (macOS)
Domainr API key	`[ -n "$DOMAINR_API_KEY" ]`	Get free key at rapidapi.com/domainr/api/domainr, add to `~/.zshenv`
Namecheap API	`[ -n "$NAMECHEAP_API_KEY" ] && [ -n "$NAMECHEAP_API_USER" ] && [ -n "$NAMECHEAP_CLIENT_IP" ]`	Enable API at ap.www.namecheap.com/settings/tools/apiaccess/, add 3 env vars, whitelist your IP

Domainr + Namecheap are optional — the workflow degrades gracefully without them (skips the corresponding cross-check steps).