Complete guide for selling on eBay — auction and fixed-price strategies, listing optimization, eBay SEO, shipping setup, seller ratings, and scaling from casual seller to Top Rated Seller.
SkillScore100Maintained
Automatic
◆Sales & GTM pack
Last verified 8/19/2026
What it changes
Passed 22 of 22 test cases with the skill, and 21 of 22 without it.
Without skill95%
With skill100%
Checks it passed that the model alone missed
Recommends using an Auction format for rare items with unknown market value
1 fixed21 passed either way0 still failing0 broke
Pass-rate lift
+5 pp
Tokens
+26%
Agent turns
0%
Response time
+8%
Model gemini-3.6-flashMeasured 8/19/2026v122 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
A test case the skill fixed. Same model, same prompt, with and without the skill.
Prompt
I have a rare, highly sought-after 1970s concert poster with uncertain market value. Should I use Buy It Now with immediate payment or a standard Auction format to maximize final sale value?
What was checked, without and with the skill
Checked
Without skill
With skill
Recommends using an Auction format for rare items with unknown market value
Missed
Passed
case-02 · gemini-3.6-flash · 8/19/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md36 linessingle file
eBay Seller Guide
Complete guide for selling on eBay — auction and fixed-price strategies, listing optimization, eBay SEO, shipping setup, seller ratings, and scaling from casual seller to Top Rated Seller.
Capabilities
Account setup and seller level progression
Listing format strategy: auction vs Buy It Now vs Best Offer
eBay SEO: item specifics, titles, and Cassini search algorithm
Photography and description best practices
Shipping and returns policy optimization
eBay Promoted Listings strategy
Top Rated Seller requirements and benefits
International selling and Global Shipping Program
Install
npx skills add nexscope/ebay-seller-guide
Usage
Ask your AI agent:
"Help me set up my eBay store and create optimized listings."
"What is the best listing strategy for used electronics on eBay?"
"How do I become a Top Rated Seller on eBay?"
Output
Structured recommendations with actionable steps, benchmarks, and platform-specific guidance.
Built by Nexscope — AI-powered e-commerce tools for sellers worldwide.