copywriting

copywriting is a skill for Claude Code from seite-sh/seite. It costs 92 tokens per session (1,638 once invoked), scanned A, a copy of copywriting, MIT.

A set of instructions for writing and improving marketing copy for pages such as homepages, landing pages, pricing pages, and product pages.

In plain words
What is it for?
Use it to draft or revise headlines, page sections, feature descriptions, calls to action, and other product or marketing text.
Why use it?
It helps turn an unclear page brief into copy that matches its audience, purpose, desired action, and available evidence.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to draft or revise headlines, page sections, feature descriptions, calls to action, and other product or marketing text.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/seite-sh/seite/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 seite-sh/seite --skill copywriting
Clone the repo
git clone --depth 1 https://github.com/seite-sh/seite

Made for: Claude Code.

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/seite-sh/seite/copywriting/github.svg)](https://agentmods.dev/skills/seite-sh/seite/copywriting)
Your own site
<a href="https://agentmods.dev/skills/seite-sh/seite/copywriting"><img src="https://agentmods.dev/badge/skills/seite-sh/seite/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/seite-sh/seite/copywriting"><img src="https://agentmods.dev/badge/skills/seite-sh/seite/copywriting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 92 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,638 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 88% copy Near-identical to another mod 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 $0.00092 $0.01638
Opus 5.5 $0.00037 $0.00655
Sonnet 5.5 $0.00018 $0.00328
Haiku 4.5 $0.00009 $0.00164

Measured 1mo ago against content hash 21202711c6b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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.

Origin

This is a copy

88% identical to copywriting — 126 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.

seite-sh/.claude/skills/copywriting/SKILL.md · 252 lines

How it starts

The opening of the file, as written. The whole thing — 252 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copywriting

You are an expert conversion copywriter. Your goal is to write marketing copy that is clear, compelling, and drives action.

Before Writing

Check for product marketing context first: If .claude/product-marketing-context.md exists, read it before asking questions. Use that context and only ask for information not already covered or specific to this task.

Gather this context (ask if not provided):

1. Page Purpose

  • What type of page? (homepage, landing page, pricing, feature, about)
  • What is the ONE primary action you want visitors to take?

2. Audience

  • Who is the ideal customer?
  • What problem are they trying to solve?
  • What objections or hesitations do they have?
  • What language do they use to describe their problem?

3. Product/Offer

  • What are you selling or offering?
  • What makes it different from alternatives?
  • What's the key transformation or outcome?
  • Any proof points (numbers, testimonials, case studies)?

4. Context

  • Where is traffic coming from? (ads, organic, email)
  • What do visitors already know before arriving?

Copywriting Principles

Clarity Over Cleverness

If you have to choose between clear and creative, choose clear.

Benefits Over Features

Features: What it does. Benefits: What that means for the customer.

Specificity Over Vagueness

  • Vague: "Save time on your workflow"
  • Specific: "Cut your weekly reporting from 4 hours to 15 minutes"

Customer Language Over Company Language

Use words your customers use. Mirror voice-of-customer from reviews, interviews, support tickets.

One Idea Per Section

Each section should advance one argument. Build a logical flow down the page.


Writing Style Rules

Core Principles

  1. Simple over complex — "Use" not "utilize," "help" not "facilitate"
  2. Specific over vague — Avoid "streamline," "optimize," "innovative"
  3. Active over passive — "We generate reports" not "Reports are generated"
  4. Confident over qualified — Remove "almost," "very," "really"
  5. Show over tell — Describe the outcome instead of using adverbs
  6. Honest over sensational — Never fabricate statistics or testimonials

Read the full file on GitHub · 252 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. 1mo ago First seen · 252 lines · 92 tokens per session scan A 21202711c6b5

Subscribe to this mod's changes

copywriting is a skill published in the GitHub repository seite-sh/seite (25 stars, last pushed 4d ago), licensed MIT. It adds 92 tokens to every session and 1,638 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to copywriting, differing in 126 lines, and is treated as a copy.

Related

Other skills, from other repositories

llmwiki

Build and use a persistent, citation-traceable knowledge wiki from documents, research papers, notes, or project documentation. Use for llmwiki projects, retrieving reusable evidence for an agent task, or compiling a corpus for repeated questions. A one-off file read or live web search does not need a wiki.

atomicstrata/llm-wiki-compiler · 66 tokens

crit-cli

Use when an agent needs to author or reply to crit inline comments programmatically (including multi-agent workflows commenting on shared code/plans/docs/proposals), publish or unpublish a crit review with crit share, sync a crit review to or from a GitHub PR or GitLab MR, or read/interpret a crit review JSON file.…

tomasz-tomczyk/crit · 110 tokens

crit

Review code changes, a plan, a live page (running dev server), or a local HTML file with Crit inline comments and structured human feedback. Use only when the user explicitly invokes /crit or directly asks to use Crit; a generic review request does not count.

tomasz-tomczyk/crit · 55 tokens

crit-story

Author a crit story and continue the interactive review loop only when the user explicitly invokes crit-story or directly asks you to generate a crit story. Do not infer this skill from generic review, PR, or diff-review requests.

tomasz-tomczyk/crit · 47 tokens

slopless

Use Slopless to review English Markdown for deterministic AI and human slop signals, including vague phrasing, formulaic prose, weak rhythm, filler, and cliches.

berelevant-ai/slopless · 39 tokens

synthetic-formatting-helper

Format local Markdown headings and lists consistently.

theinfosecguy/razin · 14 tokens