Primitiv: MCP server, setup and security

What Primitiv does

According to its repository: “Local-first design contract layer: scans Figma, code, Storybook and token files, reconciles conflicts and serves a single source of truth for design rules.”

An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. Primitiv is listed under Developer tools, a category of 475 servers in the directory, where it ranks #332 by stars.

Topics declared by the repository: ai-agents, design-system, design-tokens, figma, llm-tools, llm-tools-directory-tree.

Installing and connecting Primitiv

No package or remote server is declared in the official MCP registry: you install it from source, following the repository README.

Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: TypeScript. Listed systems: macOS, Windows, Linux.

Security: what to check

An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.

Points found for Primitiv:

• No licence: without a licence the code is not legally reusable, even if it is public. Avoid it in a company setting without the author's agreement.

Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.

Project activity and maintenance

Created on March 14, 2026, the AI-by-design/primitiv repository has 21 stars and 1 forks, with 0 open issues. It has more stars than 39% of the servers in the directory. It received changes this month.

Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.