CONTENT SKILL
copy-editing
Seven sequential editing passes over copy you already have: clarity, voice, so-what, prove-it, specificity, emotion, zero-risk, each looping back to check the earlier sweeps, plus an expert-panel scoring gate for high-stakes pages.
by Corey Hainescoreyhaines31/marketingskillsMIT licencev2.0.0upstream 2026-09-05read by us 11 September 2026
The premise is that editing everything at once catches nothing. Each sweep asks one question of every sentence: can the reader understand it, does it sound like the brand, so what, where is the proof, can it be more specific, does it make the reader feel something, is there any reason left to hesitate.
Then a second gate for launch copy: three to five expert personas score it 1 to 10 with specific critiques, revise the lowest first, repeat until everyone is at 7 and the average at 8. The rubric is written out.
A quick-pass section carries the word-level cuts (very, really, just, in order to), the replacements (utilise to use, leverage to use, seamless to smooth), and the sentence and paragraph limits. A content-refresh reference handles pages that have decayed.
When to use it
The phrases that trigger it
From the skill’s own description: say any of these and an agent that has it installed will load it.
- edit this copy
- review my copy
- proofread
- polish this
- tighten this up
- too wordy
- sharpen the messaging
- refresh this content
- content audit
What’s inside
The playbook, section by section
Sweep 1, clarity
Mark unclear parts first, correct second, then confirm one idea per section and that the copy speaks to the reader.
Sweep 3, so what
Every claim must answer "so what" with a deeper benefit: "AI-powered analytics" fails until it says what the reader can now do.
Sweep 4, prove it
"Trusted by thousands" (which thousands), "industry-leading" (says who); add proof or soften the claim.
Sweep 5, specificity
Save time becomes save 4 hours a week; many customers becomes 2,847 teams; and what cannot be made specific is probably filler.
Sweep 7, zero risk
Everything near the CTA: guarantees, no-card trials, what happens next, privacy, social proof.
Expert panel
Personas per copy type (conversion copywriter, UX writer, the target customer, brand strategist for a landing page), a 1 to 10 rubric, iterate to 7 minimum and 8 average.
Reference files: checklist.md content-refresh.md plain-english-alternatives.md
See it in action
One real run, cropped
We installed the skill folder, gave it the request below, and kept what it returned. Nothing was edited; the excerpt is the first 1,796 of 16,394 characters. The full output is in our repository as research/skills/runs/copy-editing.md.
Fetch https://addition-labs.com/resources/guides/seo-audit and run the Seven Sweeps on its opening (the first three paragraphs after the H1). Show the findings per sweep and the edited version.
Copy edit: Seven Sweeps on the opening of "How to run an ecommerce SEO audit"
Source: https://addition-labs.com/resources/guides/seo-audit (fetched 11 September 2026, HTTP 200) Product marketing context: no .agents/product-marketing.md, .claude/product-marketing.md or product-marketing-context.md was present, so brand voice is inferred from the page itself: short declarative sentences, proof-first, British spelling, no em dashes anywhere on the page.
Scope: the copy under review
"First three paragraphs after the H1" was read as the first three prose paragraphs. The byline (By the Addition team · Updated 7 September 2026 · 12 min read) is a <p> but it is metadata, not copy, so it was skipped. The H2 "How much of a checklist has a pass mark" sits between P1 and P2.
P1 (the answer block, directly under the H1): > An ecommerce SEO audit checks whether search engines can crawl, index and rank your store. Google publishes a numeric pass mark for exactly one group, the Core Web Vitals thresholds of 2.5 seconds, 200 milliseconds and 0.1 (web.dev). Below that sit mechanisms Google documents without setting a number, then convention. The ecommerce-specific work lives in that middle tier.
P2 (first paragraph of the first section): > Open any SEO audit template and every row carries the same weight. A few are measured against a number Google published. Most are measured against what the person writing the template believes.
P3: > A checklist row is not evidence.
Core message to preserve: only one group on an audit checklist comes with a Google-published pass mark; everything else is documented mechanism or convention, and the reader should sort the checklist that way before working through it.
Sweep 1: Clarity
Findings
Cropped here. The rest continues in the same register.
What it could not do in this run
no product-marketing context file existed (skill asks to read one first); the five Task-Specific Questions had no answers from the user, so assumptions are listed at the end of OUTPUT.md; no template row count or named template exists to make "a few / most" specific, so those were left as is rather than invented.
Method behind it
Where we would differ, and why
Our B2B content marketing guide carries the editing rules we apply after a draft, including the ones this skill does not have: the source must be the subject of the sentence, a limit is stated not argued, and no filler words. The skill’s seven sweeps and our rules overlap on specificity and proof; read both before a launch page.
- Note 1
- Sweep 6, heightened emotion, lists "fear of missing out" among the dimensions to add. Our copy rules ban manufactured urgency and drama; we run six sweeps and treat the seventh’s FOMO line as a defect to remove, not a texture to add.
- Note 2
- The specificity examples use made-up figures as illustrations (2,847 teams). Fine as a pattern; a real edit may only insert a number that exists.
SKILL.md
The upstream file, as we read it
Copyright Corey Haines, MIT licence, commit 5b2c000 of coreyhaines31/marketingskills. Reproduced here under that licence so you can read what the agent will read; the folder’s reference files are in the repository.
Open SKILL.md (2,297 words)
---
name: copy-editing
description: "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."
metadata:
version: 2.0.0
---
# 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 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:**
1. Read through quickly, highlighting unclear parts
2. Don't correct yet—just note problem areas
3. After marking issues, recommend specific edits
4. 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:**
1. Read aloud to hear inconsistencies
2. Mark where tone shifts unexpectedly
3. Recommend edits that smooth transitions
4. 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:**
1. Read each claim and literally ask "so what?"
2. Highlight claims missing the answer
3. Add the benefit bridge or deeper meaning
4. 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:**
1. Identify every claim that needs proof
2. Check if proof exists nearby
3. Flag unsupported assertions
4. 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:**
1. Highlight vague words and phrases
2. Ask "Can this be more specific?"
3. Add numbers, timeframes, or examples
4. 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:**
1. Read for emotional impact—does it move you?
2. Identify flat sections that should resonate
3. Add emotional texture while staying authentic
4. 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:**
1. Focus on sections near CTAs
2. List every reason someone might hesitate
3. Check if the copy addresses each concern
4. 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
1. **Assemble 3-5 expert personas** relevant to the copy type
2. **Each persona scores the copy 1-10** on their area of expertise
3. **Collect specific critiques** — not just scores, but what to fix
4. **Revise based on feedback** — address the lowest-scoring areas first
5. **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
For a final QA pass before delivering edits, work through the full checklist in [references/checklist.md](references/checklist.md) — covering all seven sweeps plus pre-start and final-check items.
---
## 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:
1. **Run a sweep and present findings** - Show what you found, why it's an issue
2. **Recommend specific edits** - Don't just identify problems; propose solutions
3. **Request the updated copy** - Let the author make final decisions
4. **Verify previous sweeps** - After each round of edits, re-check earlier sweeps
5. **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](references/plain-english-alternatives.md): Replace complex words with simpler alternatives
- [Content Refresh](references/content-refresh.md): Full checklist, refresh vs. rewrite matrix, and cadence guide
- [Copy Editing Checklist](references/checklist.md): Full QA checklist across all seven sweeps
---
## 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](references/content-refresh.md)
---
## Task-Specific Questions
1. What's the goal of this copy? (Awareness, conversion, retention)
2. What action should readers take?
3. Are there specific concerns or known issues?
4. What proof/evidence do you have available?
5. 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)
- **cro**: For broader page optimization beyond copy
- **marketing-psychology**: For understanding why certain edits improve conversion
- **ab-testing**: 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 | cro |
Questions
Questions people ask before installing
Does it rewrite my copy or mark it up?
Both, sweep by sweep: it presents findings, proposes specific edits, and asks for the updated copy so you keep ownership. You can ask for the edited version directly.
How long does a full pass take?
Seven sweeps with loop-backs on a landing page is a substantial session. The quick-pass checks exist for shorter edits.
Is the expert panel real people?
No, personas the model plays. It is a structured self-review, useful for catching what one perspective misses, not a substitute for a human editor.