# Principle Experience First

> Optimize for the end-user experience unless the cost violates an explicit constraint. Use when product, UX, API design, or feature-scope tradeoffs arise.

- Skill: `theonlyfusioncube/principle-experience-first` (Agent Skill)
- Install (CLI): `npx skillmds@latest add theonlyfusioncube/principle-experience-first`
- Raw SKILL.md: https://api.skillmd.com/api/skills/theonlyfusioncube/principle-experience-first/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: TheOnlyFusionCube (https://skillmd.com/u/theonlyfusioncube)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/theonlyfusioncube/principle-experience-first

---

# Experience First

## Trigger

When product, UX, API design, or feature-scope tradeoffs arise.

## Rule

Optimize for the end-user experience unless the cost violates an explicit constraint.

## Application

1. Name the concrete decision this principle changes.
2. Apply the rule to that decision, not as a decorative citation.
3. Prefer evidence from the current repository/runtime over generic preference.
4. If the principle conflicts with an explicit user constraint, keep the constraint and state the tradeoff.