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peak-end-rule

Design the peak and ending moments of user flows to shape remembered experience quality.

2.5k|358|Updated Mar 7, 2026
Search Tags:#user journey#ux design#behavioral psychology#experience design#Interaction design#duration neglect#peak-end rule
One-click install
npx skills add https://github.com/Owl-Listener/designer-skills --skill peak-end-rule
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: peak-end-rule
Source: https://github.com/Owl-Listener/designer-skills/tree/main/interaction-design/skills/peak-end-rule
Command: npx skills add https://github.com/Owl-Listener/designer-skills --skill peak-end-rule

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Users judge experiences by their most intense moment and their ending, not by average quality, yet teams often spread design effort evenly across flows. This Skill helps you identify and deliberately design the peak and end moments that dominate how an experience is remembered and rated.

Core Features & Use Cases

  • Peak Design Guidance: Identify the highest-intensity moment in a flow (purchase completion, first meaningful output, milestone reached) and make it genuinely satisfying, or design recovery when the peak is unavoidably negative.
  • Ending Design Guidance: Ensure sessions close on accomplishment and clear confirmation rather than errors, administrative screens, or ambiguous states.
  • Duration Neglect Application: Apply research showing that a longer experience ending well outranks a shorter one ending poorly, informing decisions about wait times, multi-session journeys, and error recovery.
  • Use Case: When redesigning a checkout flow, use this Skill to map the emotional arc, invest disproportionately in the order-confirmation peak, and end on a warm confirmation with clear next steps instead of a confusing status page.

Quick Start

Ask the AI to apply the peak-end rule to your checkout or onboarding flow and recommend how to design its peak moment and final screen.

Frequently Asked Questions about peak-end-rule

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I apply the peak-end rule to a user flow?▼

Map the emotional arc of the flow, explicitly mark the highest-intensity moment and the final moment, then invest design effort disproportionately in those two points. Test by asking users to describe the experience afterward; what they recall is almost always the peak and the end.

What is the peak-end rule in UX design?▼

The peak-end rule, from Daniel Kahneman's research, states that people judge experiences by their most emotionally intense moment and their ending, not by the average of all moments. Duration and mid-flow quality contribute far less to retrospective ratings.

When should I use peak-end rule versus zeigarnik effect?▼

Use the peak-end rule when designing completion, celebration, or cancellation moments that shape how a finished experience is remembered. Use the zeigarnik effect when the goal is sustaining engagement mid-flow by leveraging unfinished tasks.

How do I design error recovery using the peak-end rule?▼

Treat the fix moment, not the error state, as the peak. Set expectations before unavoidable negative moments, provide something useful during them, and make the recovery strong enough to become the remembered event. Never end a session on an unresolved error.

Why do users rate longer experiences higher than shorter ones?▼

This is duration neglect: users are poor judges of how long something took but accurate judges of how it felt at its extremes. A 10-minute experience ending well is rated above a 5-minute experience ending poorly, so prioritize the ending over raw speed.

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