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Forms with toolname/tooldescription attributes

navigator.modelContext.registerTool() API usage

Input fields with name, type, required, pattern attributes

JSON-LD or microdata structured data presence

/llms.txt or /llms-full.txt file availability

Descriptive meta description tag

OG title, description, type, url tags

robots.txt allows AI bot crawlers

Site served over HTTPS

CSP allows inline scripts for WebMCP

No HTTP resources on HTTPS page

Descriptive verb-based tool names

Clear, actionable tool descriptions

Complete inputSchema with types and descriptions

readOnlyHint/destructiveHint annotations present