UX Writing
Write clear, concise, user-centered interface copy (UX text/microcopy) for digital products and experiences. This skill provides frameworks, patterns, and best practices for creating text that helps users accomplish their goals.
Compatible with: Claude, Codex, Cursor, and other agents that support the agent skills specification.
Note: This skill works with Codex CLI/IDE, not ChatGPT. ChatGPT cannot install or use skills.
When to Use This Skill
Use this skill when:
- Writing interface copy (buttons, labels, titles, messages, forms)
- Editing existing UX text for clarity and effectiveness
- Creating error messages, notifications, or success messages
- Designing conversational flows or onboarding experiences
- Establishing voice and tone for a product
- Auditing product content for consistency and usability
Core UX Writing Principles
The Four Quality Standards
Every piece of UX text should be:
- Purposeful — Helps users or the business achieve goals
- Concise — Uses the fewest words possible without losing meaning
- Conversational — Sounds natural and human, not robotic
- Clear — Unambiguous, accurate, and easy to understand
Key Best Practices
Conciseness
- Use 40-60 characters per line maximum
- Every word must have a job
- Break dense text into scannable chunks
- Front-load important information
Clarity
- Use plain language (7th grade reading level for general, 10th for professional)
- Avoid jargon, idioms, and technical terms
- Use consistent terminology throughout
- Choose meaningful, specific verbs
Conversational Tone
- Write how you speak
- Use active voice 85% of the time
- Include prepositions and articles
- Avoid robotic phrasing
User-Centered
- Focus on user benefits, not features
- Anticipate and answer user questions
- Use second-person ("you") language
- Match user's language and mental models
UX Text Patterns
Apply these common patterns for interface elements.
Titles
- Purpose: Orient users to where they are
- Format: Noun phrases, sentence case
- Types: Brand titles, content titles, category titles, task titles
- Examples: "Account settings", "Your library", "Create new post"
Buttons and Links
- Purpose: Enable users to take action
- Format: Active imperative verbs, sentence case
- Pattern:
[Verb] [object] - Examples: "Save changes", "Delete account", "View details"
- Avoid: Generic labels like "OK", "Submit", "Click here"
Error Messages
- Purpose: Explain problem and provide solution
- Format: Empathetic, clear, actionable
- Pattern:
[What failed]. [Why/context]. [What to do].
Error Message Types
Validation Errors (Inline)
- Show as user completes field or on blur
- Brief, specific guidance to correct input
- Pattern:
[Field] [specific requirement] - Examples:
- "Email must include @" - "Password must be at least 8 characters" - "Choose a date in the future"
- Timing: Real-time or on field exit
- Location: Below or beside the field
System Errors (Modal/Banner)
- Show when backend operations fail
- Explain what happened and why
- Pattern:
[Action failed]. [Likely cause]. [Recovery step]. - Examples:
- "Payment failed. Your card was declined. Try a different payment method." - "Couldn't save changes. Connection lost. Reconnect and try again." - "Upload failed. File is too large. Choose a file under 10MB."
- Timing: Immediately after failure
- Location: Modal dialog or prominent banner
Blocking Errors (Full-screen)
- Prevent continued use until resolved
- Clear explanation of blocker and resolution
- Pattern:
[What's blocked]. [Why]. [Specific action needed]. - Examples:
- "Update required. This version is no longer supported. Update now to continue." - "Subscription expired. Your account is paused. Renew subscription to restore access." - "Verification needed. Confirm your email to access features. Check your inbox."
- Timing: On app launch or feature access
- Location: Full screen or large modal
Permission Errors
- Explain benefit before requesting permission
- Pattern:
[User benefit]. [Permission needed]. - Examples:
- "Get notified when orders ship. Enable notifications." - "Find nearby stores. Allow location access." - "Back up your photos. Grant storage permission."
- Timing: When feature is first used
- Location: In context of the feature
What to Avoid
- Technical codes without explanation ("Error 403")
- Blame language ("invalid input", "illegal character")
- Robotic tone ("An error has occurred")
- Dead ends (error with no recovery path)
- Vague causes ("Something went wrong")
Success Messages
- Purpose: Confirm action completion
- Format: Past tense, specific, encouraging
- Pattern:
[Action] [result/benefit] - Examples: "Changes saved", "Email sent", "Profile updated"
Empty States
- Purpose: Guide users when content is absent
- Types: First-use, user-cleared, error/no results
- Format: Explanation + CTA to populate
- Example: "No messages yet. Start a conversation to connect with your team."
Form Fields
- Labels: Clear noun phrases describing input ("Email address", "Phone number")
- Instructions: Verb-first, explain why information is needed
- Placeholder: Use sparingly, only for standard inputs like "name@example.com"
- Helper text: Static, on-demand, or automatic based on importance
Notifications
- Purpose: Deliver timely, valuable information
- Types: Action-required (intrusive), Passive (less intrusive)
- Format: Verb-first title + contextual description
- Example: "Update required. Install the latest version to continue."
Voice and Tone
Voice (Consistent Brand Personality)
Voice is the consistent personality of the product. Establish voice using:
- Concepts: 3-5 key brand principles/values
- Voice characteristics: Descriptive adjectives for each concept
- Do/Don't examples: Concrete examples showing voice in action
See references/voice-chart-template.md for creating a voice chart.
Tone (Adaptive to Context)
Tone is how voice adapts to specific situations. While voice remains constant, tone shifts based on user context and emotional state.
Tone Variables
- Purpose: Why user is seeing this text (information, action, confirmation)
- Context: What user is trying to do (learning, completing task, recovering from error)
- Emotional state: How user likely feels (frustrated, excited, confused, cautious)
- Stakes: Impact of the action (low: changing theme, high: deleting account)
Tone Adaptation by User Emotional State
Frustrated (errors, failures, blockers)
- Empathetic and solution-focused
- Acknowledge the problem without blame
- Provide clear recovery path
- Example: "Payment failed. Your card was declined. Try a different payment method."
Confused (first use, complex features)
- Patient and explanatory
- Break down steps clearly
- Provide context and guidance
- Example: "Connect your bank to see spending insights. We'll guide you through it."
Confident (routine tasks, return visits)
- Efficient and direct
- Minimal explanation
- Quick confirmation
- Example: "Saved"
Cautious (high-stakes actions, data loss)
- Serious and transparent
- Clear consequences
- Respectful of user's decision
- Example: "Delete account? You'll lose all data and this can't be undone."
Successful (completions, achievements)
- Positive and encouraging
- Proportional to achievement
- Brief celebration
- Example: "Profile updated. Your changes are live."
Tone Adaptation by Content Type
Error messages: Empathetic, reassuring, solution-focused
- Never blame user
- Explain what happened
- Provide clear next step
Success messages: Positive, specific, encouraging
- Confirm what happened
- Proportional to action importance
- Brief and clear
Instructions: Clear, direct, helpful
- Front-load key action
- Explain why when needed
- Use simple steps
Onboarding: Inviting, encouraging, concise
- Welcome without overwhelming
- Focus on value
- Celebrate early wins
Confirmations: Serious, transparent, respectful
- Clear about consequences
- No manipulation
- Easy to back out
Empty states: Hopeful, actionable, guiding
- Explain why it's empty
- Provide clear next action
- Keep encouraging tone
Editing Process
Edit UX text in four phases:
Phase 1: Purposeful
- Does text help user achieve their goal?
- Does text serve business objectives?
- Is value to user clear?
- Are concerns anticipated and addressed?
Phase 2: Concise
- Remove unnecessary words
- Combine redundant information
- Ensure every word earns its space
- Front-load important concepts
Phase 3: Conversational
- Read aloud—would you say this?
- Use active voice (unless passive is clearer)
- Include natural connecting words
- Avoid corporate jargon
Phase 4: Clear
- Use specific, accurate verbs
- Maintain consistent terminology
- Test readability (Hemingway Editor, Flesch-Kincaid)
- Ensure unambiguous meaning
Workflow
- Understand context
- User goals and needs - Business objectives - Technical constraints - Emotional state of user
- Draft content
- Start with conversation (what would you say?) - Apply appropriate pattern - Consider voice and tone - Front-load important information
- Edit iteratively
- Phase 1: Purposeful - Phase 2: Concise - Phase 3: Conversational - Phase 4: Clear
- Test and measure
- Review with team - Test with users when possible - Measure task completion, comprehension - Iterate based on feedback
Accessibility in UX Writing
Writing accessible content ensures all users, including those using assistive technology, can understand and interact with your product.
Core Accessibility Principles
Screen Reader Optimization
- Label all interactive elements explicitly ("Submit form" not just "Submit")
- Write descriptive link text ("Read pricing details" not "Click here")
- Structure error messages to work with screen readers (error + field label read together)
- Use ARIA labels when visual context isn't sufficient
Cognitive Accessibility
- Target 8-14 words per sentence (8 words = 100% comprehension, 14 words = 90%)
- Break complex information into scannable chunks
- Use clear headings and logical hierarchy
- Provide consistent, predictable patterns
Multi-Modal Communication
- Don't rely on color alone to convey meaning
- Pair visual indicators with text ("Error: Email required" with red icon)
- Provide text alternatives for icons and images
- Ensure sufficient color contrast (WCAG AA minimum: 4.5:1)
Plain Language for All
- Target 7th-8th grade reading level for general audience
- Define technical terms when first used
- Avoid idioms, metaphors, and cultural references
- Use common, everyday words
Accessible Pattern Examples
Buttons
- ❌ Poor: "Submit" (context missing for screen readers)
- ✅ Good: "Submit application"
Links
- ❌ Poor: "Click here for more information"
- ✅ Good: "Read our privacy policy"
Error Messages
- ❌ Poor: Red text showing "Invalid"
- ✅ Good: "Error: Email must include @" (with error icon)
Form Labels
- ❌ Poor: Placeholder-only fields
- ✅ Good: Visible label + optional placeholder
UX Text Benchmarks
Use these research-backed metrics to create effective UX text.
Sentence Length Targets
By Content Type
- Buttons/CTAs: 2-4 words ideal, 6 word maximum
- Titles: 3-6 words, 40 characters maximum
- Error messages: 12-18 words (including solution)
- Instructions: 20 words maximum, 14 ideal
- Body copy: 15-20 words per sentence average
- Notifications: 10-15 words for title + body
Comprehension Rates
- 8 words or fewer: 100% user comprehension
- 14 words or fewer: 90% user comprehension
- 25 words: Maximum before significant comprehension drop
Character and Line Length
Optimal Ranges
- Line length: 40-60 characters for maximum readability
- Button labels: 15-25 characters
- Page titles: 30-50 characters
- Notification titles: 35-45 characters
Reading Level Guidelines
By Audience
- General public: 7th-8th grade (Flesch-Kincaid)
- Professional tools: 9th-10th grade
- Technical products: 10th-11th grade
- Specialized fields: 11th-12th grade (only when necessary)
Testing Tools
- Hemingway Editor: Highlights complex sentences
- Readable.com: Provides multiple readability scores
- Microsoft Word: Built-in Flesch-Kincaid scoring
Common Mistakes to Avoid
- Using passive voice excessively
- Generic button labels ("Submit", "OK")
- Blaming users in error messages
- Overly clever humor in serious contexts
- Inconsistent terminology
- Hidden instructions or explanations
- System-oriented language vs. user language
- Too many words (not concise enough)
- Robotic, corporate tone
- Relying on color alone for meaning
- Writing inaccessible link text ("Click here")
Quick Reference
Sentence case: "Save your changes" (not "Save Your Changes") Active imperative for buttons: "Delete account" (not "Account deletion") User-focused: "Save time with shortcuts" (not "We offer shortcuts") Specific verbs: "Delete" (not "Remove" when permanently deleting) Front-loaded: "Password must be 8 characters" (not "Must be 8 characters for your password")
Resources
This skill includes:
- references/accessibility-guidelines.md: Comprehensive guide to writing accessible UX text for all users
- references/voice-chart-template.md: Template for creating a product voice chart
- references/content-usability-checklist.md: Comprehensive checklist for evaluating UX text quality
- references/patterns-detailed.md: Extended examples of UX text patterns in different voices
- examples/real-world-improvements.md: Before/after transformations with detailed analysis and scoring
- templates/error-message-template.md: Fillable template for writing effective error messages
- templates/empty-state-template.md: Guide for creating helpful empty states
- templates/onboarding-flow-template.md: Framework for designing clear onboarding experiences
- docs/figma-integration.md: Guide for using this skill with Figma MCP (Claude Code, Codex, and Cursor)