Typography is where AI-generated UIs give themselves away first. Inter and SF Pro are tells.

Nodes

typography-humanity — Why Inter/SF Pro feel default. Indie foundries to know. Buying a single weight is fine.
line-length-tracking — 45–75 characters per line. Tighten tracking as size increases. text-wrap: pretty. When uppercase is allowed.
type-scale-and-rhythm — A closed scale named by role; unitless leading (~1.1 display, 1.5–1.6 body); tracking by size; woff2 only, font-synthesis: none, properties over raw tags, tabular figures on anything that updates.
line-behavior — Measure near 65ch, wrap mode per role, overflow guards both ways, truncation with an escape hatch, casing by CSS, real punctuation, tuned underlines, logical properties, the 16px and contrast floors.
opentype-features-and-axes — Static vs variable, the registered axes, real small caps / slashed zero / super-sub through properties, font-specific stylistic sets, optical cuts, stroked-text seams.

Cross-cluster

See ai-default-tells in [[MOC-anti-patterns]] for typography tells (default sans on landing pages, gradient text on hero).
For the precise word behind a vague critique (kerning vs tracking, widow vs orphan, leading), see design-vocabulary.