Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Get') and resource ('your pages by slug'), enumerates the returned fields (title, format, status, counts, expiry, password-protection), and clearly distinguishes itself from siblings like list_my_pages (listing) and delete_page/update_page (mutations). It also explicitly states what it does NOT return, which sharpens purpose.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.