Microsoft Fluent 2 (React v9)

Fluent 2 scores 5 of 8 and shares ninth place with Salesforce Lightning. The ratings come from Microsoft’s npm packages, its GitHub repository and its docs, and Microsoft has no tie to Simbolik. Read the score as a split: what Fluent publishes is good, and what an agent needs to be told or to ask mid-task is missing.

The first 4 signs make the score out of 8: 2 points for a Yes, 1 for a Partly, none for a No. Typed props are rated beside them and left out of the score.

• Design tokens: Yes, 2 points. @fluentui/react-theme 9.2.2 exports typed design tokens as TypeScript objects, with no JSON or W3C file; @fluentui/tokens is still an alpha. It earns the points as a published package of design tokens. Proof: @fluentui/react-theme on npm (opens in a new tab), checked November 8, 2026.
• Agent access: No, 0 points. A maintainer wrote on February 25, 2026 that the server has not been announced or released as open source. Community servers exist, and an official one exists only for Fluent’s Blazor version. Proof: the Fluent UI discussion (opens in a new tab), checked November 8, 2026.
• Docs: Yes, 2 points. An llms.txt with a plain text file for each docs page and component, made from the Storybook docs by a tool in the repository. There is no llms-full.txt. Proof: Fluent UI React’s llms.txt (opens in a new tab), checked November 8, 2026.
• Guidance: Partly, 1 point. The repository has an AGENTS.md, Copilot instructions and Claude skills, all for contributors working on Fluent. A few of their rules, such as using design tokens and @fluentui/react-components, help consumers too, but no page tells a team how to build with Fluent and an agent. Proof: Fluent UI’s AGENTS.md (opens in a new tab), checked November 8, 2026.
• Typed props: Yes, not scored. @fluentui/react-components 9.75.1 ships its type declarations, and the Storybook docs list each component’s props. Proof: @fluentui/react-components on npm (opens in a new tab), checked November 8, 2026.

React teams on Microsoft’s stack that already run their own agent setup and mostly need readable docs and strong types. Its llms.txt links one plain text file per component, so an agent loads only the component it needs.

• The server question. The No rests on one maintainer comment from February 2026. Check Microsoft’s announcements before a Release; a public server would move Fluent up 2 points.
• Community servers. They exist for React and are not Microsoft’s; the ranking does not count them, and you would be trusting their makers to keep up.
• The design token rating. It is a judgment call: a package of code, not data. It serves a TypeScript project directly; any other tool has to run the package to get the values.

The Guidance point is yours to close today. Write an AGENTS.md for your own repository that tells agents which Fluent package to import, which design tokens to use and what never to hand-write, and link the llms.txt from it. The 2 Agent access points are Microsoft’s to close by releasing its server; until then, an agent works from the docs and types alone. Written guidance for agents shows what the file holds, and the best AI-ready design systems, ranked show where 6 or 8 would place it.