Connects Claude to your ValidateThat account so you can create and manage UX research studies from chat. You get three tools: create open or closed card sorts with a list of items, list all active studies with response counts and share links, and pull headline stats for a specific study to decide if you have enough data to analyze. Auth is a Bearer token generated from your ValidateThat settings. The same server URL and token work across Claude Desktop, claude.ai, and Claude Code. Free within ValidateThat's existing account limits, so if you're already running card sorts or tree tests there, this lets you spin them up and check results without leaving your editor or chat window.