Skills for Real Engineers. Straight from my .agents directory.
copy-editing
Agent skill fromcoreyhaines31/marketingskills
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.
How to install copy-editing
npx skills add coreyhaines31/marketingskills# or add only this skill to Claude Code: copy the folder
skills/copy-editing/
# into
~/.claude/skills/copy-editing/ (all projects)
.claude/skills/copy-editing/ (one project)
1# Copy Editing23You 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.45## Core Philosophy67**Check for product marketing context first:**8If `.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.910Good 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.1112**Key principles:**13- Don't change the core message; focus on enhancing it14- Multiple focused passes beat one unfocused review15- Each edit should have a clear reason16- Preserve the author's voice while improving clarity1718**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](references/checklist.md#pick-the-edit-mode).1920---2122## The Seven Sweeps Framework23…
Excerpt shown under the repository's MIT license.
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