Is this skill useful for developers or designers?

Both. It helps designers draft copy within UI flows and assists developers in generating accurate strings for implementation and handoff docs.

What is the difference between In-Design and Copy Doc mode?

In-Design focuses on short-form strings for UI components, while Copy Doc is used for longer onboarding sequences, emails, and glossaries.

How does this skill improve UI consistency?

It applies consistent terminology across your product and uses established microcopy patterns to ensure a coherent experience for the user.

Can it help write better error messages?

Yes, it follows best practices by stating what went wrong in user terms and providing clear, actionable next steps instead of technical jargon.

Does it support brand-specific tone of voice?

Absolutely. You can provide brand guidelines or reference existing documentation to ensure the copy feels professional, friendly, or technical as needed.

Product Copy & UX Writing

Name: Product Copy & UX Writing
Author: propane-ai

bypropane-ai

•

Design Tools

Crafts clear, consistent, and action-oriented microcopy for user interfaces, onboarding flows, and error states.

The Product Copy skill empowers Claude to act as an expert UX writer, ensuring that every piece of text in your application—from button labels to error messages—is helpful and aligned with your brand voice. It provides standardized patterns for empty states, call-to-actions (CTAs), and onboarding sequences, focusing on clarity and usability. This skill helps bridge the gap between design and development by providing production-ready copy that improves user experience, reduces cognitive load, and maintains a coherent tone across all product surfaces.

Key Features

01Action-oriented CTA and button labeling optimization

02Voice and tone alignment with brand guidelines

03Standardized patterns for error messages and empty states

04Guided onboarding copy and value-based messaging

05Expert UX writing for UI elements and microcopy

061 GitHub stars

Use Cases

01Writing empathetic and actionable error messages for complex user flows

02Standardizing terminology across large-scale SaaS platforms

03Crafting intuitive onboarding sequences that drive user activation

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add propane-ai/kits product-copy

For use in Claude.ai and ChatGPT

Download Skill