| name | copyedit-docs |
| description | {"expert":"Sentence-level copy editing enforcing active voice, verb clarity, front-loaded sentence structure, punctuation hygiene, and consistency — the final polish before publication","natural":"Polish the sentences — fix passive voice, simplify punctuation, tighten word choice, and make everything consistent"} |
| triggers | ["copy edit documentation","polish prose","fix passive voice","simplify sentences","proofread documentation","final edit"] |
| roles | ["doc-copyeditor"] |
| stage | documenting |
| constraint_level | medium |
Vocabulary
- active voice — the subject performs the action ("The installer copies the
files"); the default for technical writing.
- passive voice — the subject receives the action ("The files are copied by the
installer"); deliberate use only — in error messages, when the receiver matters more
than the actor, or when the actor is unknown.
- smothered verb — a nominalisation that buries the action in a noun: "perform an
installation" → "install", "make a determination" → "determine", "carry out an
evaluation" → "evaluate".
- sentence weight — the principle that the most important information belongs at the
start of the sentence; readers scan beginnings in an F-pattern.
- serial comma — the comma before the conjunction in a list of three or more items;
always use it.
- em-dash hygiene — maximum one em-dash pair per paragraph; prefer full stops for
sentence breaks and commas or parentheses for asides.
- compound modifier — two or more words acting as a single adjective before a noun,
joined by a hyphen: "a well-established principle"; drop the hyphen after the noun:
"the principle is well established".
- parallel structure — matching grammatical form in lists, comparisons, and
contrasts; if one item is a verb phrase, all items should be verb phrases.
- topic sentence — the first sentence of each paragraph states its main point; a
reader who only reads first sentences gets the gist.
- reading rhythm — varied sentence lengths creating natural cadence; short sentences
for emphasis, longer sentences for explanation; monotone length is a readability
problem.
- contraction consistency — using contractions (it's, you'll, don't) consistently
throughout, or not using them at all; never mixing styles within a document.
- sentence-case capitalisation — capitalise only the first word and proper nouns in
headings, labels, and table headers; the default style.
- en dash — used for ranges (pages 15–32, 2020–2024) with no spaces, and as
parenthetical dashes with spaces on each side; distinct from hyphens and em dashes.
- front-loading — placing the most important words at the start of each sentence;
"Create the right chart" not "The Recommended Charts command on the Insert tab
recommends charts".
Anti-Patterns
Passive Default
- Detect: Passive voice is used without a deliberate reason — the text defaults to
"X is done by Y" when "Y does X" would be clearer and shorter.
- BECAUSE: Passive voice is indirect; it adds words, obscures the actor, and makes
instructions harder to follow — active voice is clearer in most technical writing
contexts.
- Resolve: Switch to active voice unless the passive is deliberate: error messages
("That page can't be found"), emphasis on the receiver ("The transaction is committed
when..."), or unknown actor.
Punctuation Complexity
- Detect: Semicolons, nested clauses, and em-dash chains are used where two simple
sentences would be clearer.
- BECAUSE: Complex punctuation increases cognitive load; most readers parse two
short sentences faster than one long sentence with internal punctuation — simplicity
is the default.
- Resolve: Try splitting into two sentences first. Use a semicolon only between
closely related independent clauses where the connection is genuinely important. Limit
em-dash pairs to one per paragraph.
Consistency Drift
- Detect: Contractions mixed with spelled-out forms (it's / it is), capitalisation
varies between headings, terminology shifts (dashboard / control panel), formatting is
inconsistent.
- BECAUSE: Inconsistency distracts the reader and signals carelessness; in
technical documentation, inconsistent terminology also creates genuine confusion about
whether two terms refer to the same thing.
- Resolve: Pick one form and apply it throughout. For terminology, use the term
defined in the vocabulary or glossary. For contractions, use them consistently or not
at all.
Over-Editing Voice
- Detect: The copy editor removes distinctive phrasing, flattens personality, or
normalises every sentence to the same structure in pursuit of "correctness".
- BECAUSE: Good copy editing improves clarity without removing the author's voice;
over-edited prose reads as sterile and generic — the goal is polished human writing,
not standardised machine output.
- Resolve: Preserve distinctive phrasing that is clear and correct. Fix unclear or
incorrect sentences. Leave clear and correct sentences alone, even if you would have
written them differently.
Abbreviation Sprawl
- Detect: Abbreviations or acronyms used without definition on first use, or
defined once and then used excessively when the full term would be clearer.
- BECAUSE: Each abbreviation adds cognitive load; readers must remember what it
stands for throughout the document — minimise abbreviations and define every one at
first use.
- Resolve: Define at first use. Don't introduce an abbreviation used only once —
just spell it out. Don't use abbreviations in headings unless universally known (API,
URL, HTTP).
Checklist
Sentences
Voice and verbs
Punctuation
Consistency
Procedure
Step 1: Fix voice
Read each sentence asking: who is doing what? If the subject isn't performing the
action, switch to active voice — unless there's a deliberate reason to keep passive
(error message, receiver emphasis, unknown actor).
Step 2: Unbury smothered verbs
"Perform an installation" → "install". "Make a determination" → "determine". "Establish
connectivity" → "connect". Never combine a smothered verb with passive voice.
Step 3: Check sentence length and complexity
Sentences over 25–30 words get a second look. More than two embedded clauses — split.
Front-load the important information. Keep subject and verb close together.
Step 4: Check punctuation systematically
Work through each punctuation rule:
- Serial comma in every list of three or more.
- Em dashes: max one pair per paragraph; prefer full stops.
- Semicolons: try two sentences first.
- Colons: only after a lead-in that references the list.
- Apostrophes: its / it's, no plural apostrophes.
- Hyphens: compound modifiers before the noun, not after.
- En dashes: ranges (no spaces), parenthetical asides (with spaces).
- One space after full stops.
Step 5: Check parallel structure
Check every list. If one item starts with a verb, all items start with a verb. If one
item is a complete sentence, all items end with full stops. Matching grammatical form in
comparisons and contrasts.
Step 6: Check capitalisation
Sentence case for headings and labels. No ALL CAPS for emphasis. Proper nouns
capitalised, common nouns not. The first word after a colon in a title is capitalised;
in running text, lowercase.
Step 7: Check abbreviations
Defined at first use? Used only once (just spell it out)? Not in headings unless
universally known (API, URL, HTTP)?
Step 8: Check consistency throughout
Contractions used uniformly? Same term for the same concept? Formatting consistent? No
drift between sections.
Step 9: Check reading rhythm
Are sentence lengths varied? Short sentences for emphasis, longer for explanation? If
every sentence is the same length, vary them. Monotone rhythm is a readability problem.
Step 10: Final read-through
Read the whole document looking for anything the previous steps missed. Check that no
meaning was changed during editing. Every edit must preserve the author's intent.
Output Format
The Copyedit stage edits the document file directly — it does not just produce a report. Apply all changes to the file, then produce the changelog below as a record of what was changed. The orchestrator reviews the changelog for boundary violations before passing the revised document to the final checkpoint.
## Copy Edit Report
**Document:** {document path}
**Sentences revised:** {count}
**Passive → active conversions:** {count}
**Punctuation fixes:** {count}
### Changes
#### {Change description}
- **Location:** {section, line}
- **Type:** {passive-voice | smothered-verb | sentence-length | punctuation |
parallel-structure | capitalisation | abbreviation | consistency | rhythm}
- **Before:** "{original}"
- **After:** "{revised}"
### Consistency Notes
{any document-wide consistency decisions made — e.g., "contractions used throughout",
"dashboard not control panel"}
### Summary
- Passive voice conversions: {count}
- Smothered verbs fixed: {count}
- Sentences split: {count}
- Punctuation corrections: {count}
- Consistency fixes: {count}
Examples
BAD: Copy edit that changes meaning
Before:
> "The configuration system validates input before any changes are
> persisted to disk."
After:
> "The configuration system validates input."
WHY BAD: The copy editor removed the second clause, changing the meaning. The
original sentence communicates that validation happens before persistence — a meaningful
technical detail. Copy editing preserves meaning. If the sentence is clear and correct,
leave it alone.
GOOD: Copy edit that improves clarity without changing meaning
Before:
> "An installation of the software can be performed by the user by
> means of running the setup wizard, which will carry out a
> determination of the system requirements."
After:
> "Run the setup wizard to install the software. The wizard checks
> your system requirements first."
WHY GOOD: Two smothered verbs unburied ("perform an installation" → "install",
"carry out a determination" → "checks"). Passive voice switched to active and
imperative. One long sentence split into two. Meaning preserved — both versions say
the same thing, but the revised version says it in fewer words with clearer structure.
Evaluation Criteria
These criteria are for evaluating the copy edit output, not for self-evaluation during
the edit. They are phrased as gradable questions to support automated LLM-as-judge
evaluation.
- Is passive voice converted to active where appropriate, with deliberate passive use
preserved? Weight: 0.20.
- Are smothered verbs identified and replaced with direct verbs?
Weight: 0.20.
- Is punctuation correct throughout — serial comma, em-dash limits, apostrophes,
hyphens? Weight: 0.20.
- Is the document internally consistent — contractions, capitalisation, terminology,
formatting? Weight: 0.15.
- Is meaning preserved in every edit — no factual content removed or changed?
Weight: 0.15.
- Is reading rhythm varied — not every sentence the same length?
Weight: 0.10.
Questions This Skill Answers
- Is this document using active voice consistently?
- Are there smothered verbs hiding the action?
- Is punctuation correct and consistent?
- Is the document internally consistent in style?
- Are sentences too long or too complex?
- Is abbreviation use minimal and properly defined?
- Does the prose read naturally with varied rhythm?