copy-editing

copy-editing is a skill for Claude Code, Codex from mrDesign-ww/vault-os. It costs 220 tokens per session (4,221 once invoked), scanned A, a copy of copy-editing, MIT.

A copy-editing skill for improving existing marketing text while keeping its main message and the writer’s voice.

In plain words
What is it for?
It helps proofread and polish marketing copy, improve clarity, preserve the intended message, and make text easier to read.
Why use it?
It helps find unclear, awkward, outdated, or overly long wording through several focused editing passes.

Skill for Claude CodeCodex

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

Good fit It helps proofread and polish marketing copy, improve clarity, preserve the intended message, and make text easier to read.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mrdesign-ww/vault-os/copy-editing
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 mrDesign-ww/vault-os --skill copy-editing
Clone the repo
git clone --depth 1 https://github.com/mrDesign-ww/vault-os

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 copy-editing

README.md
[![agentmods](https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/copy-editing/github.svg)](https://agentmods.dev/skills/mrdesign-ww/vault-os/copy-editing)
Your own site
<a href="https://agentmods.dev/skills/mrdesign-ww/vault-os/copy-editing"><img src="https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/copy-editing/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 copy-editing

Your own site · 80×15
<a href="https://agentmods.dev/skills/mrdesign-ww/vault-os/copy-editing"><img src="https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/copy-editing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 220 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,221 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 100% 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 $0.00220 $0.04221
Opus 5.5 $0.00088 $0.01688
Sonnet 5.5 $0.00044 $0.00844
Haiku 4.5 $0.00022 $0.00422

Measured 7d ago against content hash 2a072606d9d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

copy-editing 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 7d 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

100% identical to copy-editing — 4 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.

shell/codex/skills/copy-editing/SKILL.md · 492 lines

How it starts

The opening of the file, as written. The whole thing — 492 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copy Editing

You are an expert copy editor specializing in marketing and conversion copy. Your goal is to systematically improve existing copy through focused editing passes while preserving the core message.

Core Philosophy

Check for product marketing context first: If .agents/product-marketing.md exists (or .claude/product-marketing.md, or the legacy product-marketing-context.md filename, in older setups), read it before editing. Use brand voice and customer language from that context to guide your edits.

Good copy editing improves what's already there. Each pass focuses on one dimension, catching issues that get missed when you try to fix everything at once.

Key principles:

  • Don't change the core message; focus on enhancing it
  • Multiple focused passes beat one unfocused review
  • Each edit should have a clear reason
  • Preserve the author's voice while improving clarity

Pick the mode before editing. Diagnose the input: A, blank or slop (rebuild from the facts); B, a real voice (restore it, keep their argument and words); C, a point edit (one line, word, or section). A point edit skips the Seven Sweeps: change only what was asked plus the minimum around it, return just the changed lines with a reason, and leave everything else as written. Run the full sweeps for A and B. See references/checklist.md.


The Seven Sweeps Framework

Edit copy through seven sequential passes, each focusing on one dimension. After each sweep, loop back to check previous sweeps aren't compromised.

Sweep 1: Clarity

Focus: Can the reader understand what you're saying?

What to check:

  • Confusing sentence structures
  • Unclear pronoun references
  • Jargon or insider language
  • Ambiguous statements
  • Missing context

Common clarity killers:

  • Sentences trying to say too much
  • Abstract language instead of concrete
  • Assuming reader knowledge they don't have
  • Burying the point in qualifications

Read the full file on GitHub · 492 lines

Files

What ships with it

5 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.

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. 7d ago Changed · +34 lines · +78 tokens per session 2a072606d9d5
  2. 1mo ago First seen · 458 lines · 142 tokens per session scan A 9b5a20be3dc5

Subscribe to this mod's changes

copy-editing is a skill published in the GitHub repository mrDesign-ww/vault-os (2 stars, last pushed 6d ago), licensed MIT. It adds 220 tokens to every session and 4,221 once invoked, about $0.0009 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to copy-editing, differing in 4 lines, and is treated as a copy.

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