Passed 19 of 22 test cases with the skill, and 19 of 22 without it.
Without skill86%
With skill86%
Checks it passed that the model alone missed
Recommends 3360 x 840 pixels for an Etsy big banner
States that the Etsy About section video maximum duration is 3 minutes
2 fixed17 passed either way1 still failing2 broke
Pass-rate lift
0 pp
Tokens
+29%
Agent turns
0%
Response time
+6%
Model gemini-3.6-flashMeasured 8/19/2026v119 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 2
Prompt
I am setting up a primary cover image across the top of my handmade ceramics Etsy shop. A graphic design template suggests using a 1200x400 pixel image, but I want to ensure my banner does not stretch or look pixelated on wide desktop screens. What exact image dimensions should I crop my Etsy big banner to for optimal display?
What was checked, without and with the skill
Checked
Without skill
With skill
Recommends 3360 x 840 pixels for an Etsy big banner
Missed
Passed
case-01 · gemini-3.6-flash · 8/19/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
Find, contact, and manage influencer partnerships for e-commerce brands. Outreach templates, negotiation tactics, contract frameworks, and relationship management across Instagram, TikTok, YouTube, and more.