Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add nexscope-ai/eCommerce-Skills --skill product-differentiation-ebaygit clone --depth 1 https://github.com/nexscope-ai/eCommerce-SkillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/nexscope-ai/ecommerce-skills/product-differentiation-ebay)<a href="https://agentmods.dev/skills/nexscope-ai/ecommerce-skills/product-differentiation-ebay"><img src="https://agentmods.dev/badge/skills/nexscope-ai/ecommerce-skills/product-differentiation-ebay/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/nexscope-ai/ecommerce-skills/product-differentiation-ebay"><img src="https://agentmods.dev/badge/skills/nexscope-ai/ecommerce-skills/product-differentiation-ebay.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 16 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00050 | $0.00806 |
| Opus 5 | $0.00025 | $0.00403 |
| Sonnet 5 | $0.00010 | $0.00161 |
| Haiku 4.5 | $0.00005 | $0.00081 |
Grade A, and why
product-differentiation-ebay scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Product Differentiation — eBay 🎯
Develop winning product differentiation strategies for eBay marketplace.
Installation
npx skills add nexscope-ai/eCommerce-Skills --skill product-differentiation-ebay -g
Features
- Competitor Matrix — Side-by-side listing comparison
- Pain Point Mining — Extract issues from negative feedback
- USP Extraction — Identify selling points from positive feedback
- Differentiation Opportunities — Find gaps in the market
- Positioning Strategy — Market positioning recommendations
- Action Plan — Prioritized improvement roadmap
eBay-Specific Analysis
| Dimension | Method | Output |
|---|---|---|
| Seller Feedback | Feedback score analysis | Trust signals |
| Item Specifics | Attribute comparison | Missing features |
| Shipping Options | Delivery comparison | Speed advantage |
| Return Policy | Policy comparison | Buyer confidence |
| Best Offer | Price flexibility | Negotiation edge |
Progressive Analysis Levels
| Level | Required Data | Unlocked Analysis |
|---|---|---|
| L1 Basic | Listing info | Basic comparison matrix |
| L2 Pain Points | + Competitor feedback | Pain point analysis |
| L3 USP | + Your feedback | Selling point extraction |
| L4 Complete | + Market data | Full strategy & action plan |
Usage
Interactive Mode
python3 scripts/analyzer.py
With Parameters
python3 scripts/analyzer.py '{
"your_item_id": "123456789012",
"competitor_ids": ["234567890123", "345678901234"],
"category": "Consumer Electronics"
}'
Output Example
🎯 eBay Product Differentiation Report
Listing: Wireless Earbuds Pro
Category: Consumer Electronics
Competitors Analyzed: 3
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📊 COMPETITOR COMPARISON
Attribute | You | Comp A | Comp B | Comp C
─────────────────────────────────────────────────
Price | $45 | $40 | $50 | $38
Shipping | Free | $5 | Free | Free
Returns | 30d | 14d | 30d | None
Feedback Score | 99% | 97% | 98% | 95%
Best Offer | ✅ | ❌ | ✅ | ❌
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
😤 TOP PAIN POINTS
1. 🔴 Slow shipping (mentioned 38x)
2. 🔴 Item not as described (mentioned 25x)
3. 🟡 Poor packaging (mentioned 18x)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✨ YOUR ADVANTAGES
1. ⭐ Higher feedback score (99%)
2. ⭐ Free shipping included
3. ⭐ Best Offer enabled
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📋 ACTION PLAN
Priority | Action | Impact
─────────────────────────────────────────────
HIGH | Highlight fast shipping | +12% CVR
HIGH | Add more item photos | +8% CVR
MEDIUM | Extend return policy | +5% trust
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 116 lines · 50 tokens per session scan A 9f6c3d7d2674
product-differentiation-ebay is a skill published in the GitHub repository nexscope-ai/eCommerce-Skills (914 stars, last pushed 17d ago), licensed MIT. It adds 50 tokens to every session and 806 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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