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.
npx skills add guia-matthieu/clawfu-skills --skill headline-formulasgit clone --depth 1 https://github.com/guia-matthieu/clawfu-skillsWrote 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.
[](https://agentmods.dev/skills/guia-matthieu/clawfu-skills/headline-formulas)<a href="https://agentmods.dev/skills/guia-matthieu/clawfu-skills/headline-formulas"><img src="https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/headline-formulas/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.
<a href="https://agentmods.dev/skills/guia-matthieu/clawfu-skills/headline-formulas"><img src="https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/headline-formulas.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00068 | $0.05180 |
| Opus 5 | $0.00034 | $0.02590 |
| Sonnet 5 | $0.00014 | $0.01036 |
| Haiku 4.5 | $0.00007 | $0.00518 |
Grade A, and why
headline-formulas 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.
How it starts
The opening of the file, as written. The whole thing — 708 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Headline Formulas
25+ proven headline formulas that stop the scroll, capture attention, and drive clicks. Templates and examples for every situation.
When to Use This Skill
- Writing headlines for landing pages, ads, or articles
- Creating email subject lines that get opens
- Crafting social media hooks
- A/B testing headline variations
- Overcoming headline writer's block
- Training teams on headline best practices
Methodology Foundation
Source: Compiled from David Ogilvy, John Caples, Gary Halbert, Joanna Wiebe, and decades of tested direct response advertising.
Core Principle: "On the average, five times as many people read the headline as read the body copy." (Ogilvy) Your headline is 80% of your ad's success.
Why This Matters: A great product with a weak headline fails. A decent product with a magnetic headline succeeds. Headlines are the highest-leverage words you'll write.
What Claude Does vs What You Decide
"Claude generates options. You choose winners."
| Claude handles | You provide |
|---|---|
| Generating 10-20 headline variations rapidly | The core benefit/offer to highlight |
| Applying proven formulas systematically | Audience knowledge and pain points |
| Mixing formula types for variety | Brand voice and tone constraints |
| Scoring headlines against criteria | Final selection based on intuition + data |
| Creating A/B test candidate sets | Testing decisions and winner analysis |
Remember: Headlines are iterative. Claude accelerates generation; you apply taste and test results.
What This Skill Does
- Generates headlines by formula - Plug-and-play templates
- Matches formula to goal - Curiosity, benefit, news, etc.
- Creates headline variations - A/B test candidates
- Evaluates headline strength - Scores against proven criteria
- Adapts headlines to format - Landing page, email, social, ad
How to Use
Generate Headlines
Give me 10 headlines for:
Product: [description]
Key benefit: [main value]
Format: [landing page/email/ad/social]
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.
- 11d ago First seen · 708 lines · 68 tokens per session scan A edbe34850507
headline-formulas is a skill published in the GitHub repository guia-matthieu/clawfu-skills (149 stars, last pushed 5mo ago), licensed MIT. It adds 68 tokens to every session and 5,180 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 2026-08-30.
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