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 agentmods add skills/zai-org/synapse/copywritingnpx skills add zai-org/Synapse --skill copywritinggit clone --depth 1 https://github.com/zai-org/SynapseWhat 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 | $0.00123 | $0.02340 |
| Opus 5 | $0.00062 | $0.01170 |
| Sonnet 5 | $0.00025 | $0.00468 |
| Haiku 4.5 | $0.00012 | $0.00234 |
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 2d 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.
This is a copy
95% identical to copywriting — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copywriting
Overview
Copywriting is not creative writing. It's strategic writing designed to move someone toward a decision. For solopreneurs, good copy can double conversion rates without changing anything else in your product or funnel. This playbook gives you frameworks and techniques to write copy that sells — without sounding sleazy.
Step 1: Understand the Core Job of Copy
Copy exists to:
- Grab attention (get them to stop scrolling)
- Create desire (make them want what you're offering)
- Remove friction (address doubts and objections)
- Prompt action (tell them exactly what to do next)
Every piece of copy — a headline, a landing page, an email — must accomplish all four. If it fails at any one, the copy fails.
Step 2: The Anatomy of Persuasive Copy
Effective copy follows a structure. The three most battle-tested frameworks:
Framework 1: AIDA (Attention, Interest, Desire, Action)
Classic and reliable. Use for landing pages, emails, and sales pages.
ATTENTION: Bold headline that stops the scroll (the promise or the pain)
INTEREST: Elaborate on the problem or opportunity (make them nod "yes, that's me")
DESIRE: Show the transformation or outcome (paint the picture of success)
ACTION: Clear CTA (tell them exactly what to do next)
Example (SaaS landing page):
ATTENTION: "Spend 10 hours/week on client reporting? Automate it in 10 minutes."
INTEREST: "Most agencies waste entire days pulling data from 6 different tools
into one report. Your clients don't care about your process — they
want insights, fast."
DESIRE: "Imagine sending polished, branded reports automatically every Monday.
Your clients stay informed. Your team stays focused on the work that
actually grows accounts."
ACTION: "Start your free 14-day trial — no credit card required."
Framework 2: PAS (Problem, Agitate, Solution)
Best for pain-driven products or when your audience is already aware of the problem.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2d ago First seen · 225 lines · 123 tokens per session scan A 4d89ce0eaad0
copywriting is a skill published in the GitHub repository zai-org/Synapse (438 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 123 tokens to every session and 2,340 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to copywriting, differing in 3 lines, and is treated as a copy.
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