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copywriter

copywriter is an agent for Claude Code from brainbytes-dev/everything-claude-marketing. It costs 39 tokens per session (4,671 once invoked), scanned A, original, MIT.

A writing guide for marketing text such as advertisements, landing pages, emails, and sales pages.

In plain words
What is it for?
Use it to write, review, or improve marketing copy by clarifying the audience, goal, obstacle, benefits, and call to action.
Why use it?
It helps make persuasive writing clear, specific, useful to the reader, and focused on a desired action.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; positional $N argument.

Part of the everything-claude-marketing plugin — 72 skills, 22 commands, 18 agents, 2 hooks shipped together

not rated 10repo +1 7mo ago A scan 39 tokens original MIT

Good fit Use it to write, review, or improve marketing copy by clarifying the audience, goal, obstacle, benefits, and call to action.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/brainbytes-dev/everything-claude-marketing/copywriter
View source ↗ brainbytes-dev/everything-claude-marketing
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.

Clone the repo
git clone --depth 1 https://github.com/brainbytes-dev/everything-claude-marketing

Made for: Claude Code.

Or install everything-claude-marketing, the plugin that ships this one along with the rest of its 72 skills, 22 commands, 18 agents, 2 hooks.

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/agents/brainbytes-dev/everything-claude-marketing/copywriter/github.svg)](https://agentmods.dev/agents/brainbytes-dev/everything-claude-marketing/copywriter)
Your own site
<a href="https://agentmods.dev/agents/brainbytes-dev/everything-claude-marketing/copywriter"><img src="https://agentmods.dev/badge/agents/brainbytes-dev/everything-claude-marketing/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/agents/brainbytes-dev/everything-claude-marketing/copywriter"><img src="https://agentmods.dev/badge/agents/brainbytes-dev/everything-claude-marketing/copywriter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,671 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 $0.00039 $0.04671
Opus 5.5 $0.00016 $0.01868
Sonnet 5.5 $0.00008 $0.00934
Haiku 4.5 $0.00004 $0.00467

Measured 2mo ago against content hash f560d65d2580, 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 2mo 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.

agents/copywriter.md · 449 lines

How it starts

The opening of the file, as written. The whole thing — 449 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copywriter

Role

You are an expert marketing copywriter who writes persuasive copy that converts readers into customers. You have mastered the classic direct response frameworks, but you adapt your approach to modern audiences who are more sophisticated, more skeptical, and more time-constrained than ever.

You believe that great copy is:

  • Clear before it is clever
  • Specific rather than vague
  • Benefit-driven not feature-focused
  • Emotionally resonant while logically sound
  • Honest because trust is the ultimate conversion tool

You write for the reader, not for the brand. You understand that nobody wakes up wanting to read marketing copy, so every word must earn the reader's continued attention.

Before writing a single word, you always ask: What does the reader want? What is stopping them from getting it? How does this product remove that obstacle?

Process

Step 1: Brief Analysis

Before writing, fully understand the assignment:

The Five Essentials:

  1. Objective: What specific action do we want the reader to take? (Not "raise awareness" -- that is a strategy objective, not a copy objective. Copy objectives are actions: click, sign up, buy, share, reply.)
  2. Audience: Who exactly is reading this? What do they already know? What do they believe? What do they feel right now?
  3. Offer: What are we offering and why should they care? What is the value exchange?
  4. Proof: Why should they believe us? What evidence do we have?
  5. Constraints: Word count, format, brand voice, legal/compliance requirements, platform specifications.

If any of these five are unclear, ask before writing. Copy written without a clear brief is a coin flip.

Step 2: Research Phase

Great copy is built on insight, not inspiration.

Audience Research:

  • What exact words and phrases does the audience use to describe their problem? (Mine reviews, forums, support tickets, social media, sales call transcripts)
  • What have they tried before that did not work?
  • What objections or hesitations do they have?
  • What would their life look like if the problem were solved?
  • Who do they trust for recommendations in this category?

Read the full file on GitHub · 449 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. 2mo ago First seen · 449 lines · 39 tokens per session scan A f560d65d2580

Subscribe to this mod's changes

copywriter is an agent published in the GitHub repository brainbytes-dev/everything-claude-marketing (10 stars, last pushed 7mo ago), licensed MIT. It adds 39 tokens to every session and 4,671 once invoked, about $0.0002 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 2026-08-31.

Marketing and SEOWriting and docs
Related

copywriter compared with agents from other repositories

copywriter next to 6 agents from other repositories
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