Plugin marketplace
A working library of 42 framework-agnostic design principles drawn from Universal Principles of Design (Lidwell, Holden, Butler, 2003). Five composable plugins covering perception, cognition, interaction, aesthetics, and process — each principle ships as a router skill plus context-specific sub-skills with deep-dive references.
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Then install any plugin below by name — each page has its exact command.
Visual perception, hierarchy, layout, and the structuring of attention. Covers Hierarchy, Proximity, Signal-to-Noise Ratio, Color, Alignment, Legibility, Readability, Gestalt Similarity, Closure, and Figure-Ground Relationship.
34 skills
Mental models, complexity reduction, memory, and learnability. Covers Hick's Law, Wayfinding, Progressive Disclosure, 80/20 Rule, Chunking, Mental Model, Recognition Over Recall, Consistency, Mimicry, and Iconic Representation.
33 skills
Affordance, feedback, errors, and user control. Covers Fitts's Law, Affordance, Forgiveness, Feedback Loop, Errors, Constraint, Mapping, Expectation Effect, and Control.
29 skills
Iteration, accessibility, reliability, and design process. Covers Accessibility, Iteration, Factor of Safety, Prototyping, Weakest Link, Scaling Fallacy, and Ockham's Razor.
24 skills
Beauty, perceived quality, brand personality, and emotional response. Covers Aesthetic-Usability Effect, Archetypes, Form Follows Function, Wabi-Sabi, Exposure Effect, and Immersion.
17 skills
Shows how many plugins this repo ships, and links here.