Immediate result: A brand voice guide with traits, do/don't examples, a word list and before/after rewrites.
Problem it solvesEvery writer and every AI tool sounds different, so the brand has no consistent voice.
Samples: three product emails · 'friendly, expert, never salesy'
Trait: Expert, not academic — we explain the why in one line, never a lecture.
Avoid: 'unlock', 'seamless', 'synergy'.
Before: 'Leverage our solution' → After: 'Use it to send invoices in a minute.'
When every writer — and every AI tool — sounds different, a brand has no voice. This skill reads three to five pieces of your best writing and turns them into a practical guide: three or four voice traits, what each means and doesn't mean, examples, a list of words to use and avoid, and a before-and-after rewrite of a generic paragraph. It ends with a short checklist writers can run before publishing. Paste the guide into your other AI skills too, and their drafts will start sounding like you.
# Skill: Brand voice guide
You are running the "Brand voice guide" skill for me. I work as: Brand / content lead. What I need from you: a brand voice guide with traits, do/don't examples, a word list and before/after rewrites.
## When I send you three to five pieces of my best writing and a few adjectives for how I want to sound
1. Infer three or four voice traits from the samples.
2. For each trait, write what it means, what it doesn't and an example.
3. Build a word list (use / avoid).
4. Rewrite one generic paragraph in the voice.
## Reply in this format
- Voice traits table: trait, we are, we're not, example
- Words to use / avoid
- Before and after
- Checklist for writers
## Rules
- Use only the facts I give you; mark anything you had to assume with [ASSUMPTION].
- If something essential is missing, ask me one short question, then continue.
- No preamble or filler: start with the result.
Confirm you're ready in one line, then wait for me to send three to five pieces of my best writing and a few adjectives for how I want to sound.Then sendThree to five pieces of your best writing and a few adjectives for how you want to sound. For example: Samples: three product emails · 'friendly, expert, never salesy'
Upload it to Claude, add it to ChatGPT's Codex app, clone it into Claude Code, or download the SKILL.md for any agent. Full guide with screenshots →
Download the ZIP and upload it in Claude. Claude then uses the skill on its own whenever a request matches.
Download ZIP
OpenAI's Codex app reads the same SKILL.md format. Copy the skill into your Codex skills folder:
$ git -c http.version=HTTP/1.1 clone https://scienceofapps.com/skills/ai-skills.git
$ cp -r ai-skills/brand-voice-guide ~/.codex/skills/
Clone the library and copy this skill into your Claude Code skills folder.
$ git -c http.version=HTTP/1.1 clone https://scienceofapps.com/skills/ai-skills.git
$ cp -r ai-skills/brand-voice-guide ~/.claude/skills/~/.claude/skills/ for all projects, or .claude/skills/ inside one project.Download the skill file and put it in a folder named after the skill.
Download SKILL.md~/.claude/skills/brand-voice-guide/SKILL.md.Repositoryscienceofapps.com/skills/ai-skills.git · all 200 skills, one folder each, plain git over HTTPS
Every writer and every AI tool sounds different, so the brand has no consistent voice. The skill fixes that: a brand voice guide with traits, do/don't examples, a word list and before/after rewrites.
Copy the skill and paste it as the first message of a new chat, then send your input. To keep it, paste it into a ChatGPT Project or custom GPT, a Claude Project or a Gemini Gem, or upload the SKILL.md file as a Claude Skill.
Send three to five pieces of your best writing and a few adjectives for how you want to sound. If something essential is missing, the skill asks you one short question and then continues.
Yes. It's free to copy, use and adapt, with no sign-up, and works in the free versions of ChatGPT, Claude, Gemini and Copilot.
ProblemTeams don't know how competitors position themselves, so their own messaging blends in.
Homepage text of Notion, ClickUp, Asana and our tool
Table stakes: 'all-in-one', 'for every team'.
Unclaimed: 'for agencies billing by the hour'.
Recommended: lead with client-ready time reports.
Immediate resultA side-by-side table of competitor claims, audiences and gaps you can own.
ProblemInconsistent UTM tags make campaign reports useless.
https://shop.example.com/diwali · campaign diwali-2026 · Meta, Google, email
…/diwali?utm_source=meta&utm_medium=paid_social&utm_campaign=diwali-2026&utm_content=reel-a
…/diwali?utm_source=newsletter&utm_medium=email&utm_campaign=diwali-2026
QA: click each link, check GA4 Realtime shows the right source/medium.
Immediate resultA UTM naming convention and a ready list of tagged URLs for your campaign.
ProblemProduct pages repeat the manufacturer's specs and don't answer what shoppers actually ask.
Steel water bottle, 750 ml, keeps cold 24 h / hot 12 h, BPA-free, ₹799, Amazon.in
Title: Insulated Steel Water Bottle 750 ml — Cold 24 Hrs, Hot 12 Hrs, BPA-Free
• Ice-cold water through a full workday and your commute home
FAQ: Does it fit car cup holders? — 7.3 cm base (check your holder).
Immediate resultA product description with a benefit-led opening, scannable bullets, specs and FAQs.
All 18 marketing skillsAll 200 skillsRead it in the articleProve it: AI for Digital Marketers Certification (free test)
60 research-backed principles in 6 categories — what each one means, why it works on the human brain and how to use it on your own screens. Written by Sushant Singh, founder of Science of Apps, who has scaled consumer apps to lacs of users and spent 10+ years leading product across startups and digital businesses in the US, EU & India.
110 real paywalls from top apps, taken apart, rated out of 5 and decoded with the Laws of UX — plus the frameworks, copy and checklists to ship your own. By Sushant Singh, founder of Science of Apps.