copywriting

copywriting is a skill for Claude Code from DariuszCiesielski/polish-agent-skills. It costs 96 tokens per session (2,044 once invoked), scanned A, original, MIT.

A marketing writing guide for SaaS products, meaning software sold as an online service. It covers website pages, emails, social posts, headlines, calls to action, and several writing structures.

In plain words
What is it for?
Use it for homepage, landing page, pricing, and feature-page text; email campaigns; social posts; product descriptions; headlines; and calls to action.
Why use it?
It helps explain a product clearly and shape messages around the reader’s problem, instead of starting with a blank page or rewriting every page manually.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the polish-marketing-skills plugin — 5 skills shipped together

Good fit Use it for homepage, landing page, pricing, and feature-page text; email campaigns; social posts; product descriptions; headlines; and calls to action.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dariuszciesielski/polish-agent-skills/copywriting
Install

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.

Any agent
npx skills add DariuszCiesielski/polish-agent-skills --skill copywriting
Clone the repo
git clone --depth 1 https://github.com/DariuszCiesielski/polish-agent-skills

Made for: Claude Code.

Or install polish-marketing-skills, the plugin that ships this one along with the rest of its 5 skills.

Wrote 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.

agentmods badge for copywriting

README.md
[![agentmods](https://agentmods.dev/badge/skills/dariuszciesielski/polish-agent-skills/copywriting/github.svg)](https://agentmods.dev/skills/dariuszciesielski/polish-agent-skills/copywriting)
Your own site
<a href="https://agentmods.dev/skills/dariuszciesielski/polish-agent-skills/copywriting"><img src="https://agentmods.dev/badge/skills/dariuszciesielski/polish-agent-skills/copywriting/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.

agentmods 80×15 button for copywriting

Your own site · 80×15
<a href="https://agentmods.dev/skills/dariuszciesielski/polish-agent-skills/copywriting"><img src="https://agentmods.dev/badge/skills/dariuszciesielski/polish-agent-skills/copywriting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,044 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00096 $0.02044
Opus 5 $0.00048 $0.01022
Sonnet 5 $0.00019 $0.00409
Haiku 4.5 $0.00010 $0.00204

Measured 11d ago against content hash 3cd3f8d6a2b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

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 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.

skills/marketing/copywriting/SKILL.md · 172 lines

How it starts

The opening of the file, as written. The whole thing — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copywriting — SaaS Marketing Copy

Generuje copy marketingowy dla stron SaaS — od nagłówków po pełne landing page. Opiera się na sprawdzonych formułach copywriterskich zaadaptowanych do polskiego rynku.

Kiedy używać

  • Pisanie/przepisanie tekstu na homepage, landing page, pricing, features
  • Tworzenie nagłówków, CTA, opisów produktu
  • Email marketing copy (welcome, onboarding, win-back)
  • Social media copy (LinkedIn, Twitter/X)
  • Użytkownik mówi: "napisz copy", "przepisz stronę", "lepszy nagłówek"

Zależności

  • Wymagane: product-marketing-context → pliki brand-voice.md, features.md, cro-best-practices.md
  • Opcjonalne: voice-profile → ton komunikacji właściciela, seo → keyword integration

Jeśli brak kontekstu → zapytaj o: produkt, grupę docelową, główny ból, ton komunikacji.

Formuły copywriterskie

1. PAS (Problem → Agitate → Solve)

Kiedy: Landing page, email, blog intro

[Problem] Tracisz godziny na ręczne wysyłanie ofert?
[Agitate] Każda minuta to stracony lead. Konkurencja automatyzuje, Ty kopiujesz-wklejasz.
[Solve] [Produkt] automatyzuje outreach w 2 minuty. Zero copy-paste, 3x więcej odpowiedzi.

2. AIDA (Attention → Interest → Desire → Action)

Kiedy: Homepage hero, reklamy

[Attention] 73% firm traci leady przez wolny follow-up.
[Interest] [Produkt] odpowiada w <5 min — automatycznie.
[Desire] Firmy jak [Klient] zwiększyły konwersję o 40%.
[Action] Zacznij za darmo →

3. BAB (Before → After → Bridge)

Kiedy: Case study, testimonial framing, email

[Before] Przed [Produktem]: 4h dziennie na manualne raporty.
[After] Teraz: raporty generują się same, zespół skupia się na strategii.
[Bridge] [Produkt] automatyzuje raportowanie w 10 minut setup.

4. 4U (Useful → Urgent → Unique → Ultra-specific)

Kiedy: Nagłówki, subject lines email

[Useful] Zaoszczędź 10h/tydzień
[Urgent] na raportowaniu (zanim konkurencja Cię wyprzedzi)
[Unique] jedynym narzędziem które łączy dane z 5 źródeł
[Ultra-specific] w 2 kliknięcia, bez kodowania

Read the full file on GitHub · 172 lines

Changes

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.

  1. 11d ago First seen · 172 lines · 96 tokens per session scan A 3cd3f8d6a2b7

Subscribe to this mod's changes

copywriting is a skill published in the GitHub repository DariuszCiesielski/polish-agent-skills (2 stars, last pushed 4mo ago), licensed MIT. It adds 96 tokens to every session and 2,044 once invoked, about $0.0005 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 2026-08-31.