Figma Just Moved the Rulebook Into the Library: Design News Digest, Week of Oct 19, 2026

Figma moved design rules into the library: Config India 2026 Guidelines, Specs, Code Layers and system checks, plus agent GA and where the DTCG spec stands.

Motion Tokens Are Machine-Readable Now: Duration and Cubic Bezier in DTCG 2025.10

DTCG Format Module 2025.10 defines duration, cubicBezier and transition tokens. Here are the unit and range rules, and a checkable verification plan an AI agent can run against a token file.

Design Tokens: The Machine-Readable Language AI Agents Need to Design Better

How AI agents can perceive, generate, map, and validate design tokens across five tools to build a computable design pipeline.

Primitive vs Semantic Tokens — When to Use What

Design tokens come in two flavors: primitive (pure values) and semantic (contextual meaning). Understanding the difference — and when to use each — is the foundation of any scalable design system.