Copywriter

Copywriter is a skill for Claude Code, Codex from eddiebelaval/squire. It costs 12 tokens per session (1,035 once invoked), scanned A, original, MIT.

A writing helper for marketing messages such as advertisements, landing pages, emails, and social media posts. It helps turn product details into clear messages that encourage people to take action.

In plain words
What is it for?
Use it to write headlines, value statements, calls to action, product promotions, and other customer-facing marketing content.
Why use it?
Marketing copy can be difficult to make both understandable and convincing without sounding forced. This helps organize the message around the audience’s needs and possible objections.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to write headlines, value statements, calls to action, product promotions, and other customer-facing marketing content.

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Install with agentmods
npx agentmods add skills/eddiebelaval/squire/copywriter
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 eddiebelaval/squire --skill copywriter
Clone the repo
git clone --depth 1 https://github.com/eddiebelaval/squire

Made for: Claude Code, Codex.

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 Copywriter

README.md
[![agentmods](https://agentmods.dev/badge/skills/eddiebelaval/squire/copywriter/github.svg)](https://agentmods.dev/skills/eddiebelaval/squire/copywriter)
Your own site
<a href="https://agentmods.dev/skills/eddiebelaval/squire/copywriter"><img src="https://agentmods.dev/badge/skills/eddiebelaval/squire/copywriter/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 Copywriter

Your own site · 80×15
<a href="https://agentmods.dev/skills/eddiebelaval/squire/copywriter"><img src="https://agentmods.dev/badge/skills/eddiebelaval/squire/copywriter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,035 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 $0.00012 $0.01035
Opus 5.5 $0.00005 $0.00414
Sonnet 5.5 $0.00002 $0.00207
Haiku 4.5 $0.00001 $0.00103

Measured 1mo ago against content hash a0b02ead69f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Copywriter 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.

skills/copywriter/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copywriter

Create compelling marketing copy that captures attention, builds desire, and drives action. This skill helps you craft persuasive messages across all marketing channels—from ad headlines to landing pages, email campaigns to social media posts.

Whether you're launching products, promoting services, or building brand awareness, this skill delivers copy that resonates with your target audience and motivates them to take action. It applies proven copywriting frameworks, psychological triggers, and conversion principles to maximize impact.

Perfect for marketers, entrepreneurs, agencies, and businesses who need high-converting copy that sells without sounding salesy.

Core Workflows

Workflow 1: Landing Page Copy

  1. Audience Research - Identify target customer pain points and desires
  2. Value Proposition - Craft clear, compelling unique selling proposition
  3. Headline Creation - Write attention-grabbing headline with subheadline
  4. Feature-Benefit Translation - Convert features into customer benefits
  5. Social Proof Integration - Add testimonials, stats, trust signals
  6. CTA Optimization - Create irresistible call-to-action copy
  7. Objection Handling - Address concerns and remove friction

Workflow 2: Ad Campaign Copy

  1. Platform Selection - Tailor copy for Google Ads, Facebook, LinkedIn, etc.
  2. Hook Development - Create scroll-stopping opening lines
  3. Message Variants - Write 5-10 versions for A/B testing
  4. Character Optimization - Work within platform character limits
  5. Audience Segmentation - Customize copy for different customer segments
  6. CTA Testing - Create multiple call-to-action variations
  7. Performance Prediction - Estimate which variants will perform best

Workflow 3: Email Sequence

  1. Sequence Planning - Map out email series flow and timing
  2. Subject Line Creation - Write compelling, open-worthy subject lines
  3. Preview Text - Optimize the first sentence for email previews
  4. Story Arc - Build narrative across multiple emails
  5. Value Delivery - Balance education with promotion
  6. Link Placement - Strategic CTA positioning throughout
  7. Re-engagement - Create follow-up for non-openers

Read the full file on GitHub · 97 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 · 97 lines · 12 tokens per session scan A a0b02ead69f6

Subscribe to this mod's changes

Copywriter is a skill published in the GitHub repository eddiebelaval/squire (21 stars, last pushed 2mo ago), licensed MIT. It adds 12 tokens to every session and 1,035 once invoked, about $0.0000 per session on Opus 5.5. 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.