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 calionauta/stelow --skill stelow-product-marketplace-playbookgit clone --depth 1 https://github.com/calionauta/stelowWrote 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/calionauta/stelow/stelow-product-marketplace-playbook)<a href="https://agentmods.dev/skills/calionauta/stelow/stelow-product-marketplace-playbook"><img src="https://agentmods.dev/badge/skills/calionauta/stelow/stelow-product-marketplace-playbook/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/calionauta/stelow/stelow-product-marketplace-playbook"><img src="https://agentmods.dev/badge/skills/calionauta/stelow/stelow-product-marketplace-playbook.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00037 | $0.01200 |
| Opus 5 | $0.00018 | $0.00600 |
| Sonnet 5 | $0.00007 | $0.00240 |
| Haiku 4.5 | $0.00004 | $0.00120 |
Grade A, and why
stelow-product-marketplace-playbook 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 3d 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 — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Stimulating Marketplace: Supply and Demand
19 Tactics to Stimulate Marketplaces
Getting the Core Dynamics Right
-
Get the harder side first. When the harder side (supply or demand) reaches its critical activity point, network effects kick in and value is created organically for the easier side. Discovering this through the sales and onboarding process, typically the harder side is the most valuable — once you have enough of them, the other side is 2-3 times easier to bring aboard.
-
Strongly attract to a niche and repeat. Find the small groups in your community that care most about your market ("white-hot center") and go after them. Usually, this is discovered by going broad enough to collect data that shows the most activity.
-
Subsidize the most valuable side of the market. Pay in cash to the most valuable side of the market — or to the most valuable niche within the most valuable side — to join the marketplace.
Building Initial Supply
-
Make supply look bigger with automation. Start the supply side by aggregating as much web data as possible to create a "perceived aura of activity".
-
Build one side as an email list. An easy and cheap way to start a market, especially if many buyers are also sellers and vice versa.
-
Hold meetups and gatherings. In the beginning, they can be effective for generating community, demonstrating activity, and getting direct customer feedback.
-
Create a SaaS tool for one side of the market. When you give or sell a SaaS tool to one side of the market, it helps keep them in the market, giving time to attract the other side.
-
Provide software to third parties who can bring one side of the market.
-
Find a giant user for initial supply or demand.
-
Make only one side change their behavior.
Creating Momentum
-
Make something free suddenly. Transforming something that used to cost money into something free will attract users.
-
Create a product first and then open a market.
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.
- 3d ago Changed · +22 lines 0fc0a557dfbb
- 12d ago First seen · 107 lines · 37 tokens per session scan A 3bb4b81cb66a
stelow-product-marketplace-playbook is a skill published in the GitHub repository calionauta/stelow (10 stars, last pushed today), licensed MIT. It adds 37 tokens to every session and 1,200 once invoked, about $0.0002 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 2026-08-30.
Other skills, from other repositories
amazon-reviews-api-skill
This skill helps users automatically extract Amazon product reviews via the Amazon Reviews API. Agent should proactively apply this skill when users express needs like getting reviews for Amazon product with ASIN B07TS6R1SF, analyzing customer feedback for a specific Amazon item, getting ratings and comments for a…
amazon-competitor-analyzer
Scrapes Amazon product data from ASINs using browseract.com automation API and performs surgical competitive analysis. Compares specifications, pricing, review quality, and visual strategies to identify competitor moats and vulnerabilities.
asc-subscription-localization
Bulk-localize subscription, subscription-group, and in-app purchase display names across App Store locales using asc, including API 4.4.1 version-scoped v2 resources. Use when filling or updating subscription/IAP names and descriptions without App Store Connect UI work.
food-order
Reorder previous Foodora orders, preview cart contents, and track delivery ETA/status with ordercli. Use when the user wants to reorder food, check delivery status, or browse recent Foodora order history. Never confirm an order without explicit user approval.
product-description-generator
E-commerce product description generator for any platform. Generates optimized titles, bullet points, descriptions, and backend keywords using competitor research + keyword scoring + FABE copywriting. Two modes: (A) Create — generate listing from product specs with optional competitor analysis, (B) Optimize — improve…
amazon-price-tracker
Amazon price monitoring and competitive pricing intelligence. Real-time price tracking, Buy Box analysis, promotion detection, and dynamic pricing strategy optimization. Use when the user asks about price monitoring, competitor pricing, Buy Box tracking, or pricing strategy.