The protocol gluing the AI era together has a prominent skeptic at the top of one of design software's biggest companies. Figma co-founder Dylan Field thinks MCP is not a perfect protocol, TechCrunch reported on Tuesday, in comments that land as the Model Context Protocol becomes default infrastructure for connecting AI models to external tools and data.

MCP, introduced by Anthropic and since adopted across the industry, gives AI agents a standard way to discover and use tools — the plumbing behind agents that book, buy, code and query on a user's behalf. Its spread has been fast precisely because it is simple and open, qualities that historically trade off against completeness and polish.

Field's reservation matters because Figma sits on both sides of the protocol: design files are among the assets AI agents most want to read and modify, and Figma's own AI features depend on reliable connections between models and the canvas. A critique from a founder whose product is becoming agent infrastructure carries weight in a debate usually conducted by protocol engineers.

The comments arrive in a week when the agent stack is consolidating — large labs are absorbing agent startups and shipping their own connectors. Whether MCP gets revised, extended or challenged by a rival standard, the argument Field is making is now on the record from inside one of the industry's most valuable product companies.