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 hoangatg/ai-agent-toolkit --skill copywritinggit clone --depth 1 https://github.com/hoangatg/ai-agent-toolkitWrote 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/hoangatg/ai-agent-toolkit/copywriting)<a href="https://agentmods.dev/skills/hoangatg/ai-agent-toolkit/copywriting"><img src="https://agentmods.dev/badge/skills/hoangatg/ai-agent-toolkit/copywriting.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00031 | $0.00708 |
| Opus 5 | $0.00015 | $0.00354 |
| Sonnet 5 | $0.00006 | $0.00142 |
| Haiku 4.5 | $0.00003 | $0.00071 |
Grade A, and why
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 4d 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 — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copywriting
Words that convert readers into users, users into customers.
1. Copywriting Principles
| Principle | Application |
|---|---|
| Benefit over feature | "Save 10 hours/week" not "Automated scheduler" |
| Clear over clever | Clarity beats creativity |
| Specific over vague | "10,000+ users" not "Many users" |
| Active voice | "We build" not "It is built by" |
| Scannable | Headers, bullets, short paragraphs |
2. Landing Page Framework
AIDA Structure
| Section | Purpose | Example |
|---|---|---|
| Attention | Hook with pain point | "Tired of losing leads?" |
| Interest | Show you understand | "We know sales teams waste 5h/day on..." |
| Desire | Show the solution | "Automate follow-ups, close 3x more" |
| Action | Clear CTA | "Start free trial →" |
Above the Fold
| Element | Must Have |
|---|---|
| Headline | Clear value proposition |
| Subheadline | Support with detail |
| CTA | One primary action |
| Social proof | Logos, numbers, or testimonial |
| Visual | Product screenshot or demo |
3. CTA Design
CTA Principles
| Principle | Application |
|---|---|
| Action-oriented | "Start building" not "Submit" |
| Value-focused | "Get my free report" not "Download" |
| Urgency | "Limited spots" or "Today only" |
| One CTA per section | Don't overwhelm with choices |
4. Email Sequences
Welcome Sequence (5 emails)
| Timing | Purpose | |
|---|---|---|
| 1. Welcome | Immediately | Confirm, set expectations |
| 2. Quick win | Day 1 | First value delivered |
| 3. Social proof | Day 3 | Case study or testimonial |
| 4. Deep dive | Day 5 | Feature education |
| 5. Activation | Day 7 | CTA to upgrade/complete setup |
5. SEO Content
| Principle | Application |
|---|---|
| Search intent | Match what users actually search for |
| Headers hierarchy | H1 → H2 → H3, keyword-rich |
| Meta description | 150-160 chars, include CTA |
| Internal linking | Connect related content |
| Content depth | Comprehensive, not thin |
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.
- 4d ago First seen · 99 lines · 31 tokens per session scan A 334fbc0fd603
copywriting is a skill published in the GitHub repository hoangatg/ai-agent-toolkit (1 stars, last pushed 5mo ago), licensed MIT. It adds 31 tokens to every session and 708 once invoked, about $0.0002 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 2026-09-03.
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