v1.9.0 — Behavioral Design Reference (29 cognitive biases)

What's new in v1.9.0

Behavioral Design Reference — references/behavioral-design.md

Full scan of keepsimple.io/uxcore — 105 cognitive biases reviewed, 29 directly applicable to interface design selected and mapped to concrete UI patterns.

Organized by design task:

Section	Biases covered
Pricing pages	Anchoring, Decoy, Contrast, Mental accounting, Hyperbolic discounting, Less-is-better
CTAs & copy	Framing, Loss aversion, Self-reference, Illusory truth, Curse of knowledge, Negativity bias
Navigation & IA	Magical Number 7±2, Serial-position, Ambiguity effect, Unit bias
Trust & social proof	Halo effect, Bandwagon, Authority bias, Confirmation bias, Mere-exposure
Onboarding & retention	Peak-end rule, IKEA effect, Endowment, Escalation of commitment, Reactance
Visual hierarchy	Von Restorff, Picture superiority, Processing difficulty

Each entry includes a definition, where to apply in UI, an HTML/code example, and a "why it works" one-liner from the source.

Ends with a quick reference table mapping 15 common design tasks to their applicable biases.

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Full changelog: CHANGELOG.md