UX/UI Copywriting

UX/UI Copywriting is a skill for Claude Code, Codex from GktuOktay/ai-skills. It costs 57 tokens per session (702 once invoked), scanned A, original, MIT.

A set of guidelines for writing short text in user interfaces, including buttons, onboarding messages, and error messages. It explains how to make each message clear, concise, helpful, and consistent with a brand voice.

In plain words
What is it for?
Use it to write calls to action, form and onboarding text, validation messages, and error messages that explain the problem and suggest a fix.
Why use it?
It helps users understand what an action will do and how to recover when something goes wrong. This reduces vague buttons, confusing instructions, and error messages that offer no next step.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to write calls to action, form and onboarding text, validation messages, and error messages that explain the problem and suggest a fix.

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Install with agentmods
npx agentmods add skills/gktuoktay/ai-skills/copywriting
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add GktuOktay/ai-skills --skill copywriting
Clone the repo
git clone --depth 1 https://github.com/GktuOktay/ai-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for UX/UI Copywriting

README.md
[![agentmods](https://agentmods.dev/badge/skills/gktuoktay/ai-skills/copywriting/github.svg)](https://agentmods.dev/skills/gktuoktay/ai-skills/copywriting)
Your own site
<a href="https://agentmods.dev/skills/gktuoktay/ai-skills/copywriting"><img src="https://agentmods.dev/badge/skills/gktuoktay/ai-skills/copywriting/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for UX/UI Copywriting

Your own site · 80×15
<a href="https://agentmods.dev/skills/gktuoktay/ai-skills/copywriting"><img src="https://agentmods.dev/badge/skills/gktuoktay/ai-skills/copywriting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 702 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.00702
Opus 5 $0.00028 $0.00351
Sonnet 5 $0.00011 $0.00140
Haiku 4.5 $0.00006 $0.00070

Measured 11d ago against content hash af915a24b000, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

UX/UI Copywriting scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/copywriting/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI/UX Copywriting Guidelines

This skill focuses on writing effective microcopy for user interfaces, marketing assets, and onboarding flows. Good copy guides the user seamlessly while reflecting the brand's personality.

1. Tone of Voice

Our tone is Friendly, Professional, and Concise.

  • Friendly: Welcoming, helpful, and empathetic, especially when things go wrong.
  • Professional: Authoritative without being overly formal. We know what we are doing.
  • Concise: Respect the user's time. Say more with fewer words.

2. Writing Clear CTAs (Calls to Action)

CTAs should clearly indicate what will happen when the user clicks.

  • Use strong verbs: Start with an action word (e.g., Get, Create, Save, Subscribe).
  • Be specific: Avoid generic terms if a more descriptive term fits.
    • Bad: Submit, Click Here, OK
    • Good: Create Account, Send Message, Save Changes
  • Keep it short: Aim for 2-4 words.

3. Handling Error Messages

Error messages should never blame the user. They must explain what went wrong and how to fix it.

  • Be empathetic: Avoid aggressive words like "Failed," "Prohibited," or "Illegal."
  • Provide a solution: Tell the user what to do next.
  • Examples:
    • Bad: Invalid password. Try again.
    • Good: Your password needs to be at least 8 characters long.
    • Bad: System error 404.
    • Good: We couldn't find that page. Let's get you back to the home page.

4. Designing Empty States

Empty states are opportunities to educate and encourage action, not dead ends.

  • Explain the value: Tell the user what goes here and why they should care.
  • Provide an action: Always include a CTA to help them get started.
  • Example (Empty Inbox):
    • Headline: You're all caught up!
    • Body: When you receive new messages, they'll appear right here.
    • CTA: Browse Contacts

5. Onboarding Copy

Onboarding should highlight value, not just explain features.

  • Focus on benefits: Explain why a feature matters, not just how it works.
  • Keep it digestible: One concept per screen/tooltip.
  • Allow skipping: Respect users who prefer to explore independently.

Read the full file on GitHub · 71 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 71 lines · 57 tokens per session scan A af915a24b000

Subscribe to this mod's changes

UX/UI Copywriting is a skill published in the GitHub repository GktuOktay/ai-skills (2 stars, last pushed 9d ago), licensed MIT. It adds 57 tokens to every session and 702 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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