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This skill works with Claude Desktop, Claude Code, and Codex (CLI and IDE extensions).

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Scale content quality through AI

An Agent Skill that enables Claude and OpenAI Codex to write and edit user-centered interface copy (UX text/microcopy) for digital products. This skill transforms AI assistants into specialized UX writing tools that apply consistent standards, patterns, and voice across your product.

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The problem

Design systems solve visual consistency, but content quality still depends on individual writers. Every error message, button label, and empty state requires manual review to ensure it’s clear, concise, conversational, and purposeful. This doesn’t scale.

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The solution

This Agent Skill packages UX writing expertise into a system that Claude can apply automatically. Instead of asking “make this better,” you can rely on consistent, evidence-based improvements across your entire product interface.

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What makes this different

Systems thinking

Not a list of writing tips—a framework for evaluating and improving UX text based on four measurable quality standards.

Progressive disclosure

Reference materials are loaded only when needed, keeping Claude’s context efficient while providing deep expertise on demand.

Proven patterns

Built from real-world UX writing best practices, with examples across different product voices and contexts.

Immediately actionable

Every pattern includes concrete before/after examples and scoring against quality standards.

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What you get

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Core framework

  • Four quality standards: Purposeful, Concise, Conversational, Clear
  • Common UX patterns: Buttons, errors, empty states, forms, notifications, onboarding
  • Editing process: Systematic approach to improving any interface text
  • Voice and tone guidance: Adapt content to brand personality and context
  • Accessibility guidelines: Write for screen readers, cognitive accessibility, and WCAG compliance
  • Research-backed benchmarks: Sentence length targets, comprehension rates, reading levels

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Reference materials

  • Accessibility guidelines: Comprehensive guide for writing inclusive, accessible UX text
  • Voice chart template: Establish consistent brand personality
  • Content usability checklist: Evaluate text quality with scoring framework
  • Detailed pattern examples: See how different voices apply the same patterns

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Practical tools

  • Real-world improvements: Before/after transformations with analysis
  • Fillable templates: Error messages, empty states, onboarding flows
  • Expanded error patterns: Validation, system, blocking, and permission errors with examples
  • Tone adaptation framework: Map emotional states to appropriate tone
  • Quick reference: Common patterns and anti-patterns

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Use cases

Apply consistent UX writing standards across your product without memorizing every rule.
Enable non-writers to create interface copy that follows your design system.
Enforce content guidelines at scale without becoming a bottleneck.
Build content quality in from the start with proven patterns.

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How it works

This skill uses model-invoked activation—Claude and Codex automatically decide when to use it based on your request. You don’t need to explicitly call the skill; it activates when you:
  • Write or edit interface copy
  • Create error messages, notifications, or empty states
  • Work on button labels, form fields, or instructions
  • Review product content for consistency
  • Establish voice and tone guidelines
The AI loads reference materials progressively, using only what’s needed for your specific task to maintain efficient context usage.
In Codex CLI/IDE, you can also explicitly invoke the skill using $ux-writing or through the /skills command.

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Get started

Installation

Install the skill for Claude Desktop, Claude Code, or Codex

Quick start

Learn how to use the skill with practical examples

Figma integration

Review and improve UX copy directly from Figma designs

Core principles

Understand the four quality standards and UX writing patterns

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Why this matters

Content is infrastructure. Every button label, error message, and empty state shapes how people understand and use your product. Good UX writing shouldn’t depend on having an expert review every string. This skill makes UX writing excellence systematic, scalable, and consistent—exactly what design systems do for visual design.

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Credits

Built by Christopher Greer, Staff Content Designer at Stripe, based on established UX writing principles from:
  • Content Design by Sarah Richards
  • Strategic Writing for UX by Torrey Podmajersky
  • Nicely Said by Kate Kiefer Lee and Nicole Fenton
  • Google Material Design writing guidelines
  • Years of practical application building design systems