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copy-editing

100 / 100 · Low risk

Fine to try.

By coreyhaines31/marketingskills (GitHub) · marketing · 60,232 stars · scanned at commit 1f83744

When the user wants to edit, tighten, proofread, or refresh existing copy, or asks whether to keep, cut, or change a line in it, without rewriting from scratch. Every edit removes AI tells: 'it's not X, it's Y' reveals, 'no X, no Y, no Z' lists, and sentences that trail into extra comma clauses. A request to fix one line gets a point edit to that line only. For new copy, see copywriting.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'copy-editing' ] || [ -L ~/.agents/skills/'copy-editing' ]; then echo 'A skill folder named copy-editing already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/coreyhaines31/marketingskills' "$d" && git -C "$d" checkout --quiet '1f837447b20bb6f0e72d87b80ece1c221c362c7d' -- 'skills/copy-editing' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/copy-editing' ~/.agents/skills/'copy-editing' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'copy-editing' ~/.claude/skills/'copy-editing' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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