Marketing Copy Editor
When the user wants to edit, review, or improve existing marketing copy, or refresh outdated content.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up this text,' 'too wordy,' 'sharpen the messaging,' 'refresh this content,' 'update this page,' 'this content is outdated,' or 'content audit.' Use this when the user already has copy and wants it improved or refreshed rather than rewritten from scratch. For writing new copy, see copywriting.
Installation
- Make sure Claude is on your device and in your terminal.
Skills load from
~/.claude/skills/when Claude Code starts up — so you need it on your machine first. If you don't have it yet, install it once with the command below, then runclaudein any terminal to verify.One-time setupnpm i -g @anthropic-ai/claude-codeAlready have it? Skip ahead.
- Paste into Claude Code or into your terminal.Install
git clone https://github.com/coreyhaines31/marketingskills.git /tmp/coreyhaines31__marketingskills && mkdir -p ~/.claude/skills/copy-editing-coreyhaines31 && cp -r /tmp/coreyhaines31__marketingskills/skills/copy-editing/. ~/.claude/skills/copy-editing-coreyhaines31/This copies the whole skill folder into
~/.claude/skills/copy-editing-coreyhaines31/— the SKILL.md plus any scripts, reference docs, or templates the skill ships with. Safe default: works for every skill.Faster alternative (instruction-only skills)
Skips the clone and grabs only the SKILL.md file. Don't use this if the skill ships Python scripts, reference markdowns, or asset templates — they won't be downloaded and the skill will fail when it tries to load them.
Quick install (SKILL.md only)mkdir -p ~/.claude/skills/copy-editing-coreyhaines31 && curl -fsSL https://raw.githubusercontent.com/coreyhaines31/marketingskills/main/skills/copy-editing/SKILL.md -o ~/.claude/skills/copy-editing-coreyhaines31/SKILL.md - Restart Claude Code.
Quit and reopen Claude Code (or any other agent that loads from
~/.claude/skills/). New skills are picked up on startup. - Just ask Claude.
Skills auto-activate when your request matches the skill's description — no slash command needed. Trigger phrases live in the skill's own frontmatter; you can read them in the “What this skill does” section above.
Prefer to read the source first? Open on GitHub.
When Claude uses it
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.' Use this when the user already has copy and wants it improved or refreshed rather than rewritten from scratch. For writing new copy, see copywriting.
What this skill does
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-context.md exists (or .claude/product-marketing-context.md in older setups), read it before editing. Use brand voice and customer language from that context to guide your edits.
Good copy editing isn't about rewriting—it's about enhancing. 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
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
Process:
- Read through quickly, highlighting unclear parts
- Don't correct yet—just note problem areas
- After marking issues, recommend specific edits
- Verify edits maintain the original intent
After this sweep: Confirm the "Rule of One" (one main idea per section) and "You Rule" (copy speaks to the reader) are intact.
Sweep 2: Voice and Tone
Focus: Is the copy consistent in how it sounds?
What to check:
- Shifts between formal and casual
- Inconsistent brand personality
- Mood changes that feel jarring
- Word choices that don't match the brand
Common voice issues:
- Starting casual, becoming corporate
- Mixing "we" and "the company" references
- Humor in some places, serious in others (unintentionally)
- Technical language appearing randomly
Process:
- Read aloud to hear inconsistencies
- Mark where tone shifts unexpectedly
- Recommend edits that smooth transitions
- Ensure personality remains throughout
After this sweep: Return to Clarity Sweep to ensure voice edits didn't introduce confusion.
Sweep 3: So What
Focus: Does every claim answer "why should I care?"
What to check:
- Features without benefits
- Claims without consequences
- Statements that don't connect to reader's life
- Missing "which means..." bridges
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:
- Feature lists without benefit connections
- Impressive-sounding claims that don't land
- Technical capabilities without outcomes
- Company achievements that don't help the reader
Process:
- Read each claim and literally ask "so what?"
- Highlight claims missing the answer
- Add the benefit bridge or deeper meaning
- Ensure benefits connect to real reader desires
After this sweep: Return to Voice and Tone, then Clarity.
Sweep 4: Prove It
Focus: Is every claim supported with evidence?
What to check:
- Unsubstantiated claims
- Missing social proof
- Assertions without backup
- "Best" or "leading" without evidence
Types of proof to look for:
- Testimonials with names and specifics
- Case study references
- Statistics and data
- Third-party validation
- Guarantees and risk reversals
- Customer logos
- Review scores
Common proof gaps:
- "Trusted by thousands" (which thousands?)
- "Industry-leading" (according to whom?)
- "Customers love us" (show them saying it)
- Results claims without specifics
Process:
- Identify every claim that needs proof
- Check if proof exists nearby
- Flag unsupported assertions
- Recommend adding proof or softening claims
After this sweep: Return to So What, Voice and Tone, then Clarity.
Sweep 5: Specificity
Focus: Is the copy concrete enough to be compelling?
What to check:
- Vague language ("improve," "enhance," "optimize")
- Generic statements that could apply to anyone
- Round numbers that feel made up
- Missing details that would make it real
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:
- Adjectives doing the work nouns should do
- Benefits without quantification
- Outcomes without timeframes
- Claims without concrete examples
Process:
- Highlight vague words and phrases
- Ask "Can this be more specific?"
- Add numbers, timeframes, or examples
- Remove content that can't be made specific (it's probably filler)
After this sweep: Return to Prove It, So What, Voice and Tone, then Clarity.
Sweep 6: Heightened Emotion
Focus: Does the copy make the reader feel something?
What to check:
- Flat, informational language
- Missing emotional triggers
- Pain points mentioned but not felt
- Aspirations stated but not evoked
Emotional dimensions to consider:
- Pain of the current state
- Frustration with alternatives
- Fear of missing out
- Desire for transformation
- Pride in making smart choices
- Relief from solving the problem
Techniques for heightening emotion:
- Paint the "before" state vividly
- Use sensory language
- Tell micro-stories
- Reference shared experiences
- Ask questions that prompt reflection
Process:
- Read for emotional impact—does it move you?
- Identify flat sections that should resonate
- Add emotional texture while staying authentic
- Ensure emotion serves the message (not manipulation)
After this sweep: Return to Specificity, Prove It, So What, Voice and Tone, then Clarity.
Sweep 7: Zero Risk
Focus: Have we removed every barrier to action?
What to check:
- Friction near CTAs
- Unanswered objections
- Missing trust signals
- Unclear next steps
- Hidden costs or surprises
Risk reducers to look for:
- Money-back guarantees
- Free trials
- "No credit card required"
- "Cancel anytime"
- Social proof near CTA
- Clear expectations of what happens next
- Privacy assurances
Common risk issues:
- CTA asks for commitment without earning trust
- Objections raised but not addressed
- Fine print that creates doubt
- Vague "Contact us" instead of clear next step
Process:
- Focus on sections near CTAs
- List every reason someone might hesitate
- Check if the copy addresses each concern
- Add risk reversals or trust signals as needed
After this sweep: Return through all previous sweeps one final time: Heightened Emotion, Specificity, Prove It, So What, Voice and Tone, Clarity.
Expert Panel Scoring
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.
How It Works
- Assemble 3-5 expert personas relevant to the copy type
- Each persona scores the copy 1-10 on their area of expertise
- Collect specific critiques — not just scores, but what to fix
- Revise based on feedback — address the lowest-scoring areas first
- Re-score after revisions — iterate until all personas score 7+, with an average of 8+ across the panel
Recommended Expert Panels
Landing page copy:
- Conversion copywriter (clarity, CTA strength, benefit hierarchy)
- UX writer (scannability, cognitive load, user flow)
- Target customer persona (does this speak to me? do I trust it?)
- Brand strategist (voice consistency, positioning accuracy)
Email sequence:
- Email marketing specialist (subject lines, open/click optimization)
- Copywriter (hooks, storytelling, persuasion)
- Spam filter analyst (deliverability red flags, trigger words)
- Target customer persona (relevance, value, unsubscribe risk)
Sales page / long-form:
- Direct response copywriter (offer structure, objection handling, urgency)
- Skeptical buyer persona (proof gaps, trust issues, red flags)
- Editor (flow, readability, conciseness)
- SEO specialist (keyword coverage, search intent alignment)
Scoring Rubric
| 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. |
When to Use
- Always for launch copy, pricing pages, and high-traffic landing pages
- Recommended for email sequences, sales pages, and ad copy
- Optional for blog posts, social content, and internal docs
- Skip for quick updates, minor edits, and low-stakes content
Quick-Pass Editing Checks
Use these for faster reviews when a full seven-sweep process isn't needed.
Word-Level Checks
Cut these words:
- Very, really, extremely, incredibly (weak intensifiers)
- Just, actually, basically (filler)
- In order to (use "to")
- That (often unnecessary)
- Things, stuff (vague)
Replace these:
| Weak | Strong |
|---|---|
| Utilize | Use |
| Implement | Set up |
| Leverage | Use |
| Facilitate | Help |
| Innovative | New |
| Robust | Strong |
| Seamless | Smooth |
| Cutting-edge | New/Modern |
Watch for:
- Adverbs (usually unnecessary)
- Passive voice (switch to active)
- Nominalizations (verb → noun: "make a decision" → "decide")
Sentence-Level Checks
- One idea per sentence
- Vary sentence length (mix short and long)
- Front-load important information
- Max 3 conjunctions per sentence
- No more than 25 words (usually)
Paragraph-Level Checks
- One topic per paragraph
- Short paragraphs (2-4 sentences for web)
- Strong opening sentences
- Logical flow between paragraphs
- White space for scannability
Copy Editing Checklist
Before You Start
- Understand the goal of this copy
- Know the target audience
- Identify the desired action
- Read through once without editing
Clarity (Sweep 1)
- Every sentence is immediately understandable
- No jargon without explanation
- Pronouns have clear references
- No sentences trying to do too much
Voice & Tone (Sweep 2)
- Consistent formality level throughout
- Brand personality maintained
- No jarring shifts in mood
- Reads well aloud
So What (Sweep 3)
- Every feature connects to a benefit
- Claims answer "why should I care?"
- Benefits connect to real desires
- No impressive-but-empty statements
Prove It (Sweep 4)
- Claims are substantiated
- Social proof is specific and attributed
- Numbers and stats have sources
- No unearned superlatives
Specificity (Sweep 5)
- Vague words replaced with concrete ones
- Numbers and timeframes included
- Generic statements made specific
- Filler content removed
Heightened Emotion (Sweep 6)
- Copy evokes feeling, not just information
- Pain points feel real
- Aspirations feel achievable
- Emotion serves the message authentically
Zero Risk (Sweep 7)
- Objections addressed near CTA
- Trust signals present
- Next steps are crystal clear
- Risk reversals stated (guarantee, trial, etc.)
Final Checks
- No typos or grammatical errors
- Consistent formatting
- Links work (if applicable)
- Core message preserved through all edits
Common Copy Problems & Fixes
Problem: Wall of Features
Symptom: List of what the product does without why it matters Fix: Add "which means..." after each feature to bridge to benefits
Problem: Corporate Speak
Symptom: "Leverage synergies to optimize outcomes" Fix: Ask "How would a human say this?" and use those words
Problem: Weak Opening
Symptom: Starting with company history or vague statements Fix: Lead with the reader's problem or desired outcome
Problem: Buried CTA
Symptom: The ask comes after too much buildup, or isn't clear Fix: Make the CTA obvious, early, and repeated
Problem: No Proof
Symptom: "Customers love us" with no evidence Fix: Add specific testimonials, numbers, or case references
Problem: Generic Claims
Symptom: "We help businesses grow" Fix: Specify who, how, and by how much
Problem: Mixed Audiences
Symptom: Copy tries to speak to everyone, resonates with no one Fix: Pick one audience and write directly to them
Problem: Feature Overload
Symptom: Listing every capability, overwhelming the reader Fix: Focus on 3-5 key benefits that matter most to the audience
Working with Copy Sweeps
When editing collaboratively:
- Run a sweep and present findings - Show what you found, why it's an issue
- Recommend specific edits - Don't just identify problems; propose solutions
- Request the updated copy - Let the author make final decisions
- Verify previous sweeps - After each round of edits, re-check earlier sweeps
- Repeat until clean - Continue until a full sweep finds no new issues
This iterative process ensures each edit doesn't create new problems while respecting the author's ownership of the copy.
References
- Plain English Alternatives: Replace complex words with simpler alternatives
- Content Refresh: Full checklist, refresh vs. rewrite matrix, and cadence guide
Content Refresh Editing
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 full refresh checklist, refresh vs. rewrite decision matrix, and cadence guide: See references/content-refresh.md
Task-Specific Questions
- What's the goal of this copy? (Awareness, conversion, retention)
- What action should readers take?
- Are there specific concerns or known issues?
- What proof/evidence do you have available?
- Is this new copy or a refresh of existing content?
Related Skills
- copywriting: For writing new copy from scratch (use this skill to edit after your first draft is complete)
- page-cro: For broader page optimization beyond copy
- marketing-psychology: For understanding why certain edits improve conversion
- ab-test-setup: For testing copy variations
When to Use Each Skill
| 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 | page-cro |
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