Individual skill

80-20-rule

Use this skill whenever the design has many features, controls, or content elements and decisions about which to prioritize matter — feature roadmaps, redesign scoping, IA decisions, dashboard design, settings page audits, marketing content prioritization, or any design with many candidates competing for attention. Trigger when the user asks "what should we focus on?", "should we add another feature?", "what can we cut?", or when reviewing a UI cluttered with rarely-used controls. The 80/20 rule (Pareto principle) is one of the foundational principles in 'Universal Principles of Design' (Lidwell, Holden, Butler 2003) and one of the most quoted across design, business, and engineering.

plugins/cognition-and-learnability-principles/skills/80-20-rule/SKILL.md

Source commit 09b9858fc983fe917b7fedae67a9625d9e6655a6

What was checked

Matches the observed repository HEAD

Yes

Scanner rules are current

No

Repository scan complete

No

Skill scan complete

Yes

Observed behavior

Not checked yet

Last checked

Nov 6, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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