Type — typography router

Routes typographic work to the smallest sufficient set of focused skills. Do not answer typography questions from memory when a skill below covers them: the skills carry the decision procedures, the ranges, and the source conflicts that "looks right" misses.

Core principle

Books teach judgment. Current standards teach implementation.

Never emit a bare universal constant. Encode the decision and its inputs.

❌ "Body text should always be 16px." ✅ Determine body-text size from the typeface's apparent size, x-height, target device, reading distance, content density, user needs, and available line length. Treat 16px as a common browser-oriented starting point, not a universal optimum. Validate readability, zoom behavior, line length, and hierarchy in the rendered context.