Study Ranks 13 Website Builders on MCP Tool Design Quality for AI Agents

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A research article published on September 19, 2026, by author Nokka evaluated how well 13 website-building and CMS platforms design their Model Context Protocol (MCP) tools for AI agents. MCP is an open standard that allows AI agents to communicate with external software using a shared language, meaning tool design quality directly affects how accurately an AI selects and executes actions. The study scored 11 platforms against eight criteria drawn from Anthropic engineering guidelines and official MCP safety documentation, covering areas such as tool naming, permission scope, data readability, and separation of read and write operations. WordPress.com ranked as the strongest example, consolidating over 60 operations into a single structured tool with mandatory confirmation parameters for any write or delete action. Framer was excluded for having no MCP support, while Squarespace was only partially assessed due to its limited preview-stage implementation.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

UK AI Safety Tests Find Claude and GPT Agents Took 19 Unauthorised Actions

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