User-Facing Text Cleanup
guillaumemeyer/watermarks-remover
Audits prose for invisible Unicode characters and rewrites it while keeping facts, citations, code and required disclosures unchanged and the writer's voice intact.
When the user wants to edit, review, or improve existing marketing copy, or refresh outdated content.
$ npx skills add coreyhaines31/marketingskills --skill copy-editing -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install coreyhaines31/marketingskills copy-editing --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/copy-editing .claude/skills/copy-editing && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "copy-editing" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editing into .claude/skills/copy-editing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "copy-editing", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add coreyhaines31/marketingskills --skill copy-editing -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install coreyhaines31/marketingskills copy-editing --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/copy-editing .agents/skills/copy-editing && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "copy-editing" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editing into .agents/skills/copy-editing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "copy-editing", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add coreyhaines31/marketingskills --skill copy-editing -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install coreyhaines31/marketingskills copy-editing --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/copy-editing .cursor/skills/copy-editing && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "copy-editing" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editing into .cursor/skills/copy-editing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "copy-editing", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/coreyhaines31/marketingskills.git --path skills/copy-editing--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add coreyhaines31/marketingskills --skill copy-editing -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install coreyhaines31/marketingskills copy-editing --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/copy-editing .gemini/skills/copy-editing && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "copy-editing" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editing into .gemini/skills/copy-editing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "copy-editing", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install coreyhaines31/marketingskills copy-editingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add coreyhaines31/marketingskills --skill copy-editing -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/copy-editing .github/skills/copy-editing && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "copy-editing" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editing into .github/skills/copy-editing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "copy-editing", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add coreyhaines31/marketingskills --skill copy-editing -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install coreyhaines31/marketingskills copy-editing --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/copy-editing .opencode/skills/copy-editing && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "copy-editing" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editing into .opencode/skills/copy-editing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "copy-editing", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
copy-editingWhen the user wants to edit, review, or improve existing marketing copy, or refresh outdated content.
Copy Editing is an agent skill from coreyhaines31/marketingskills. When the user wants to edit, review, or improve existing marketing copy, or refresh outdated content. Also use when the user mentions 'edit this copy,' 'review my copy,' 'copy feedback,' 'proofread,' 'polish this,' 'make this better,' 'copy sweep,' 'tighten this up,' 'this reads awkwardly,' 'clean up this text,' 'too wordy,' 'sharpen the messaging,' 'refresh this content,' 'update this page,' 'this content is outdated,' or 'content audit,' 'this sounds like AI,' 'AI slop,' 'de-slop this,' or 'make it sound…
Its SKILL.md is about 4.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `evals/evals.json`, `references/checklist.md` and `references/content-refresh.md`).
It sits in Writing & Content, covering Copy editing and proofreading, Copywriting and Content marketing. The repository describes itself as: Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering. The licence is MIT.
4 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 1efedbc. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Copy Editing loads about 4.5k tokens when it runs, and up to ~8.3k if it reads all its reference files. Until then it costs about 206 tokens; SKILL.md has 2,349 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from coreyhaines31/marketingskills at commit 1efedbc, republished under its MIT licence (© coreyhaines31). 2,349 words, ~4,467 tokens.
.claude/skills/copy-editing/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.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.
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:
Edit copy through seven sequential passes, each focusing on one dimension. After each sweep, loop back to check previous sweeps aren't compromised.
Focus: Can the reader understand what you're saying?
What to check:
Common clarity killers:
Process:
After this sweep: Confirm the "Rule of One" (one main idea per section) and "You Rule" (copy speaks to the reader) are intact.
Focus: Is the copy consistent in how it sounds?
What to check:
Common voice issues:
Process:
After this sweep: Return to Clarity Sweep to ensure voice edits didn't introduce confusion.
Focus: Does every claim answer "why should I care?"
What to check:
The So What test: For every statement, ask "Okay, so what?" If the copy doesn't answer that question with a deeper benefit, it needs work.
❌ "Our platform uses AI-powered analytics" So what? ✅ "Our AI-powered analytics surface insights you'd miss manually—so you can make better decisions in half the time"
Common So What failures:
Process:
After this sweep: Return to Voice and Tone, then Clarity.
Focus: Is every claim supported with evidence?
What to check:
Types of proof to look for:
Common proof gaps:
Process:
After this sweep: Return to So What, Voice and Tone, then Clarity.
Focus: Is the copy concrete enough to be compelling?
What to check:
Specificity upgrades:
| Vague | Specific |
|---|---|
| Save time | Save 4 hours every week |
| Many customers | 2,847 teams |
| Fast results | Results in 14 days |
| Improve your workflow | Cut your reporting time in half |
| Great support | Response within 2 hours |
Common specificity issues:
Process:
After this sweep: Return to Prove It, So What, Voice and Tone, then Clarity.
Focus: Does the copy make the reader feel something?
What to check:
Emotional dimensions to consider:
Techniques for heightening emotion:
Process:
After this sweep: Return to Specificity, Prove It, So What, Voice and Tone, then Clarity.
Focus: Have we removed every barrier to action?
What to check:
Risk reducers to look for:
Common risk issues:
Process:
After this sweep: Return through all previous sweeps one final time: Heightened Emotion, Specificity, Prove It, So What, Voice and Tone, Clarity.
Use this after completing the Seven Sweeps for an additional quality gate. For high-stakes copy (landing pages, launch emails, sales pages), a multi-persona expert review catches issues that a single perspective misses.
Landing page copy:
Email sequence:
Sales page / long-form:
| Score | Meaning |
|---|---|
| 9-10 | Publish-ready. No meaningful improvements. |
| 7-8 | Strong. Minor tweaks only. |
| 5-6 | Functional but has clear gaps. Needs another pass. |
| 3-4 | Significant issues. Major revision needed. |
| 1-2 | Fundamentally broken. Rethink approach. |
Use these for faster reviews when a full seven-sweep process isn't needed.
Cut these words:
Replace these:
| Weak | Strong |
|---|---|
| Utilize | Use |
| Implement | Set up |
| Leverage | Use |
| Facilitate | Help |
Replace with the fact (a synonym swap just makes a new tell):
| Vague | Write the fact instead |
|---|---|
| Innovative / cutting-edge | What it does that alternatives don't |
| Robust | The uptime, scale, or failure case it handles |
| Seamless | The real setup step count or time |
Watch for:
Run this on every edit, after the sweeps. A reader who spots an AI tell tends to doubt the claims around it. The shape of a sentence gives it away more than any word does.
Fix every instance of these:
| Pattern | Example | Fix |
|---|---|---|
| Contrast reveal | "It's not X, it's Y." "Not because X. Because Y." | State Y directly, with the reason |
| Negation list | "No setup call, no templates, no waiting on IT." | Say what does happen; keep one absence if it matters ("No card required") |
| Trailing pile-on | "...the data you already have, no exports, no spreadsheets." / "..., ensuring nothing slips." | End the sentence at the claim; give the benefit its own sentence |
| Self-answered question | "The result? 3x faster." | Delete the question, keep the answer |
| Colon reveal | "The best part: it learns." | Write a normal sentence |
| Stock phrases | "In today's fast-paced world," "Whether you're X or Y," "Here's the thing," "Say goodbye to," "X, reimagined," "Unlock the power of" | Cut, then open with the reader's problem or the fact |
| Em dashes in short copy | Headlines, subheads, CTAs, ads, social posts, subject lines (1–2 per page max in long copy) | Period, comma, or colon |
Cap these: one fragment and one list of three per section (a hero, a page section, or one short post). Treat seamless, robust, powerful, streamline, and empower as placeholders: replace them with the fact they stand for where you can, and if two show up in one paragraph, rewrite the paragraph.
How to fix: go back to the facts (the mechanism, number, customer, or step) and rewrite from those. Swapping in synonyms creates new tells. If the fact isn't available, mark [NEED: ...] instead of inventing one. Keep the brand's register. A formal sentence that makes a specific claim is fine.
Leave these alone: FAQ questions, a single "No card required" by the CTA, a list of three when there really are three features, and a clause after a comma that adds a new fact ("Imports run nightly, keeping your existing IDs").
For the full blacklist with examples, use the copywriting skill's AI-tells reference.
For a final QA pass before delivering edits, work through the full checklist in references/checklist.md — covering all seven sweeps plus pre-start and final-check items.
Symptom: List of what the product does without why it matters Fix: Add "which means..." after each feature to bridge to benefits
Symptom: "Leverage synergies to optimize outcomes" Fix: Ask "How would a human say this?" and use those words
Symptom: Starting with company history or vague statements Fix: Lead with the reader's problem or desired outcome
Symptom: The ask comes after too much buildup, or isn't clear Fix: Make the CTA obvious, early, and repeated
Symptom: "Customers love us" with no evidence Fix: Add specific testimonials, numbers, or case references
Symptom: "We help businesses grow" Fix: Specify who, how, and by how much
Symptom: Copy tries to speak to everyone, resonates with no one Fix: Pick one audience and write directly to them
Symptom: "Not X. Y." reveals, "no X, no Y, no Z" lists, long sentences trailing extra clauses, stock openers Fix: Run the AI-Tell Check above and rewrite those sentences from the underlying facts
Symptom: Listing every capability, overwhelming the reader Fix: Focus on 3-5 key benefits that matter most to the audience
When editing collaboratively:
This iterative process ensures each edit doesn't create new problems while respecting the author's ownership of the copy.
Copy editing isn't just for new content. Existing pages decay over time — outdated stats, stale examples, and drifted brand voice. Use the content refresh framework when traffic is declining, data is stale, or the product has changed.
For the SERP gap analysis, full refresh checklist, refresh vs. rewrite decision matrix, and cadence guide: See references/content-refresh.md
| Task | Skill to Use |
|---|---|
| Writing new page copy from scratch | copywriting |
| Reviewing and improving existing copy | copy-editing (this skill) |
| Editing copy you just wrote | copy-editing (this skill) |
| Structural or strategic page changes | cro |
© coreyhaines31, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 4 other files (references) in skills/copy-editing of coreyhaines31/marketingskills.
Open the folder on GitHubat commit 1efedbc
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in coreyhaines31/marketingskills, which our catalogue first saw on October 8, 2026.
Copy Editing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Copy Editing this skillcoreyhaines31/marketingskills | 54k | 1 repos | ~4.5k | Automated safety check: Pass | MIT | |
| User-Facing Text Cleanupguillaumemeyer/watermarks-remover | 24k | — | ~3.5k | Automated safety check: Pass | MIT | |
| Chinese Text Humanizerop7418/Humanizer-zh | 19k | — | ~2k | Automated safety check: Pass | MIT | |
| Natural Japanese Business Writingcoji/natural-japanese | 1.9k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Zero Slop Prose Editoriflytek/skillhub | 5.2k | — | ~1.5k | Automated safety check: Pass | MIT | |
| AI Copywritermikiarlo3/ai-copywriter | 1.2k | — | ~12k | Automated safety check: Pass | MIT |
guillaumemeyer/watermarks-remover
Audits prose for invisible Unicode characters and rewrites it while keeping facts, citations, code and required disclosures unchanged and the writer's voice intact.
op7418/Humanizer-zh
Edits Chinese articles, comments and documents to remove filler, repetition and template phrasing while keeping the facts, the level of certainty and the author's voice.
coji/natural-japanese
Writes and edits Japanese business documents so they read clearly and naturally, removes AI-sounding phrasing and can score how AI-like a text reads.
iflytek/skillhub
Audits and rewrites formulaic, AI-sounding prose while keeping facts, voice and format, using a local Python scorer and inspect-only, rewrite or embedded-gate modes.
mikiarlo3/ai-copywriter
Write copy that converts and doesn't sound like a robot. An agent skill from mikiarlo3/ai-copywriter.
zenstory-ai/oh-story-claudecode
Rewrites AI-sounding Chinese web novel text so it reads naturally, changing as little as possible and keeping plot, names and numbers intact.
coreyhaines31/marketingskills
When the user wants help creating, scheduling, or optimizing social media content for LinkedIn, Twitter/X, Instagram, TikTok, or Facebook, or wants to do social listening and engagement triage.
coreyhaines31/marketingskills
When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program.
coreyhaines31/marketingskills
When the user wants to create, optimize, or analyze a referral program, affiliate program, or word-of-mouth strategy.
coreyhaines31/marketingskills
When the user wants to audit or optimize an App Store or Google Play listing.
coreyhaines31/marketingskills
When the user wants to create or optimize an email sequence, drip campaign, automated email flow, or lifecycle email program.
coreyhaines31/marketingskills
When the user wants to create or optimize in-app paywalls, upgrade screens, upsell modals, or feature gates.
Categories
When the user wants to edit, review, or improve existing marketing copy, or refresh outdated content. Copy Editing is an agent skill from coreyhaines31/marketingskills. When the user wants to edit, review, or improve existing marketing copy, or refresh outdated content.
Copy Editing fits situations like: improve existing marketing copy; refresh outdated content; the user mentions edit this copy; make this better.
Run `npx skills add coreyhaines31/marketingskills --skill copy-editing -a claude-code`. Or copy the skill folder (skills/copy-editing in coreyhaines31/marketingskills) into .claude/skills/copy-editing in your project. Claude Code loads it when a task matches its description.
Run `npx skills add coreyhaines31/marketingskills --skill copy-editing -a codex`. Or copy the skill folder (skills/copy-editing in coreyhaines31/marketingskills) into .agents/skills/copy-editing in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add coreyhaines31/marketingskills --skill copy-editing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/copy-editing, .gemini/skills/copy-editing, .github/skills/copy-editing and .opencode/skills/copy-editing in your project.
SKILL.md names no scripts, command-line tools or credentials: Copy Editing is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Copy Editing is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 4.5k tokens (SKILL.md is roughly 18k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.8k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Copy Editing: User-Facing Text Cleanup (guillaumemeyer/watermarks-remover, 24k stars), Chinese Text Humanizer (op7418/Humanizer-zh, 19k stars), Natural Japanese Business Writing (coji/natural-japanese, 1.9k stars) and Zero Slop Prose Editor (iflytek/skillhub, 5.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
coreyhaines31 (a GitHub user) maintains it in coreyhaines31/marketingskills, which has 53,967 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on October 8, 2026.
Source: coreyhaines31/marketingskills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.