Headline: 'Empowering Synergy for the Modern Enterprise' · CTA: 'Learn more'
You get
Five-second test: fails — a visitor can't say what the product does.
Issue: vague headline (cognitive load) — high impact, low effort.
Rewrite: 'Close your books 3 days faster' · CTA: 'Start a free trial'.
About this skill
About Landing page critique
A landing page that gets traffic but doesn't convert attracts endless opinions about why. This skill replaces opinions with a structured review. It runs a five-second test — can a visitor tell what this is, who it's for and what to do next — then reviews clarity, proof, friction, objections and the call to action, naming the UX principle behind each issue. Issues are ranked by likely impact and effort, the hero section is rewritten, and you get the first A/B test to run. It never recommends fake reviews or countdown timers.
Landing page critique — example input and the first lines it returns. Works in ChatGPT, Claude and Gemini.
2 Paste it into a new chatChatGPT, Claude, Gemini or Copilot.
3 Send your inputSend the landing page text (headline to footer).
The skill — paste this into your AI assistant
# Skill: Landing page critique
You are running the "Landing page critique" skill for me. I work as: Growth / CRO marketer. What I need from you: a prioritised list of conversion issues tied to UX principles, with rewritten copy for the top fixes.
## When I send you the landing page text (headline to footer), who the visitor is and the conversion goal
1. Check the five-second test: what it is, who it's for, what to do next.
2. Review clarity, proof, friction, objections and the call to action.
3. Rank issues by likely impact and effort.
4. Rewrite the headline, subhead and CTA.
## Reply in this format
- Five-second test result
- Issues table: issue, principle, impact, effort
- Rewritten hero
- A/B test to run first
## Rules
- Name the principle behind each issue (e.g. Hick's Law, cognitive load, social proof).
- Never suggest fake reviews or countdowns.
- 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 the landing page text (headline to footer), who the visitor is and the conversion goal.
Then sendThe landing page text (headline to footer), who the visitor is and the conversion goal. For example: Headline: 'Empowering Synergy for the Modern Enterprise' · CTA: 'Learn more'
ChatGPT
Fastest: paste the skill as your first message in a new chat, then send your input.
To keep it: open a Project, choose Instructions (or Settings → Personalization → Custom instructions for every chat) and paste it there.
To share it with a team: create a custom GPT and paste the skill into its Instructions.
In the Codex app: copy the skill's folder into ~/.codex/skills/ (or Customize → Skills → Add → Create skill).
Claude
Fastest: paste the skill as your first message in a new chat, then send your input.
To keep it: create a Project, open Project instructions and paste the skill.
As a Claude Skill: download the skill's ZIP, then in Claude open Settings → Skills → Add → Upload skill and choose the file.
Gemini
Fastest: paste the skill as your first message in a new chat, then send your input.
To keep it: open Gems → New Gem, paste the skill into Instructions and save.
Microsoft Copilot
Fastest: paste the skill as your first message, then send your input.
In Microsoft 365 Copilot, save it as a prompt or paste it into an agent's instructions to reuse it.
Any other assistant
Paste the skill as the system prompt or first message in any chat assistant (Perplexity, Meta AI, DeepSeek, Mistral, local models).
Coding agents that read the Agent Skills format (SKILL.md) can load the downloaded file from their skills folder.
Install it permanently
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.
Claude Code: save it as ~/.claude/skills/landing-page-critique/SKILL.md.
Claude apps: use the Claude app tab — it has a ready-made ZIP.
Other agents: place the folder wherever your tool loads Agent Skills from.
Repositoryscienceofapps.com/skills/ai-skills.git · all 200 skills, one folder each, plain git over HTTPS
What it does
The steps it follows
Check the five-second test: what it is, who it's for, what to do next.
Review clarity, proof, friction, objections and the call to action.
Rank issues by likely impact and effort.
Rewrite the headline, subhead and CTA.
What you get back
The reply format
Five-second test result
Issues table: issue, principle, impact, effort
Rewritten hero
A/B test to run first
Rules it never breaks
Name the principle behind each issue (e.g. Hick's Law, cognitive load, social proof).
Never suggest fake reviews or countdowns.
Uses only the facts you give it and marks assumptions.
FAQs
Questions about Landing page critique
What does the Landing page critique skill do?
A landing page gets traffic but doesn't convert, and opinions on why are endless. The skill fixes that: a prioritised list of conversion issues tied to UX principles, with rewritten copy for the top fixes.
How do I install Landing page critique in ChatGPT, Claude or Gemini?
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.
What do I send Landing page critique after installing it?
Send the landing page text (headline to footer), who the visitor is and the conversion goal. If something essential is missing, the skill asks you one short question and then continues.
Is the Landing page critique skill free?
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.
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.
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