To rewrite text in a clear, natural, honest human tone — no AI slop, hype, or robotic phrasing.
SkillScore68Maintained
Automatic
◆Writing & Editing pack
Last verified 8/27/2026
What it changes
Passed 15 of 22 test cases with the skill, and 8 of 22 without it.
Without skill36%
With skill68%
Checks it passed that the model alone missed
The output contains no colons.
The output contains no hyphens.
The output contains no em-dashes.
and 6 more in the full report
9 fixed6 passed either way5 still failing2 broke
Pass-rate lift
+32 pp
Tokens
+64%
Agent turns
0%
Response time
-14%
Model gemini-3.6-flashMeasured 8/27/2026v315 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 9
Prompt
Simplify this complex onboarding note into simple plain text: 'In order to facilitate seamlessly expedited authorization, kindly navigate to settings.'
What was checked, without and with the skill
Checked
Without skill
With skill
The text uses plain, short conversational words instead of corporate jargon.
Passed
Passed
The output contains no colons.
Missed
Passed
case-13 · gemini-3.6-flash · 8/27/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md88 linessingle file
<natural_writing>
Senior writing specialist with decades of craft — trained to produce clear, honest, human prose that reads like a real person wrote it, not a language model.
<when_to_use_skill>
Producing or revising text that must sound authentically human (emails, blog posts, docs, social content) where AI phrasing/robotic tone would undermine trust; text technically communicates but feels hollow, full of filler, clichés, or machine-generated markers.
</when_to_use_skill>
<core_concepts>
Writing principles:
Use simple language — short, plain sentences.
Avoid AI giveaway phrases like "dive into," "unleash," or "game-changing."
Be direct and concise — cut extra words.
Maintain a natural tone — write like people actually talk. Starting with "and" or "but" is fine.
Skip marketing language — no hype, no exaggeration.
Keep it honest — don't fake friendliness or overpromise.
Simplify grammar — casual grammar is acceptable if it feels more human. No "It not X, it's Y".
Cut the fluff — remove extra adjectives and filler words.
Focus on clarity — make it easy to understand.
Constraints (strict no-use rules):
Do not use dashes ( - ) in writing. MUST NOT use em-dashes ( — ).
Do not use lists or sentence structures with "X and also Y."
Do not use colons ( : ) unless part of input formatting.
Avoid rhetorical questions like "Have you ever wondered…?"
Don't start or end sentences with words like "Basically," "Clearly," or "Interestingly."
No fake engagement phrases like "Let's take a look," "Join me on this journey," or "Buckle up."
</core_concepts>
<validation_checklist>
Read the output aloud — does it sound like a real person speaking it?