Analyzes prose for grammar errors, style inconsistencies, clarity issues, and readability problems. Provides specific suggestions for improvement while preserving the author's unique voice.
SkillScore86Maintained
Automatic
◆Writing & Editing pack
Last verified 8/22/2026
What it changes
Passed 19 of 22 test cases with the skill, and 16 of 22 without it.
Without skill73%
With skill86%
Checks it passed that the model alone missed
Asks the user for parameter details like genre or target audience before generating the report.
Replaces the weak modifier 'kind of sad' with a precise emotional adjective such as 'melancholy' or 'dejected'.
Asks the user for missing parameters such as target audience or voice preservation preferences before delivering the report.
3 fixed16 passed either way3 still failing0 broke
Pass-rate lift
+14 pp
Tokens
+435%
Agent turns
0%
Response time
-2%
Model gemini-3.6-flashMeasured 8/22/2026v119 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 3
Prompt
Here is a draft of chapter one from my novel: [insert text]. Please perform a thorough prose review and generate a structured evaluation report. In your report, provide an overview of key text statistics (word count, average sentence length, estimated reading level), an executive summary of findings, itemized critical grammar errors with original quotes and fixes, style improvement opportunities focusing on active voice and stronger verbs, word repetition metrics, notes on maintaining my narrative voice, and prioritized action steps for editing.
What was checked, without and with the skill
Checked
Without skill
With skill
Requests the actual text passage to analyze from the user.
Passed
Passed
Asks the user for parameter details like genre or target audience before generating the report.
Missed
Passed
case-01 · gemini-3.6-flash · 8/22/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md800 linessingle file
Grammar and Style Enhancer
Purpose
This skill helps authors refine their prose by identifying grammar errors, style inconsistencies, weak constructions, and clarity issues. It provides actionable suggestions that improve readability while respecting and preserving the author's unique voice.
When to Use
User wants to polish a completed draft
User needs help with grammar and punctuation
User wants to improve sentence variety and rhythm
User is concerned about passive voice or weak verbs
User needs consistency checking (tense, POV, spelling)
User wants to enhance clarity and conciseness
User requests style analysis or readability assessment
Instructions
Step 1: Establish Parameters
Ask the user:
Text to Analyze: Specific passage, chapter, or full manuscript
Genre: Literary fiction, genre fiction, non-fiction, academic, etc.
Target Audience: Adult, YA, middle grade, academic readers