Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it provides a WHOIS/RDAP dossier with specific fields (registrar, creation/expiry, status, nameservers), which distinguishes it from siblings like web_search or scrape_page. However, it lacks an explicit verb like 'retrieve' or 'lookup', so it's clear but not maximally specific.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.