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 cosmicstack-labs/mercury-agent-skills --skill price-scoutgit clone --depth 1 https://github.com/cosmicstack-labs/mercury-agent-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/cosmicstack-labs/mercury-agent-skills/price-scout)<a href="https://agentmods.dev/skills/cosmicstack-labs/mercury-agent-skills/price-scout"><img src="https://agentmods.dev/badge/skills/cosmicstack-labs/mercury-agent-skills/price-scout/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/cosmicstack-labs/mercury-agent-skills/price-scout"><img src="https://agentmods.dev/badge/skills/cosmicstack-labs/mercury-agent-skills/price-scout.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 | $0.00047 | $0.01999 |
| Opus 5 | $0.00023 | $0.01000 |
| Sonnet 5 | $0.00009 | $0.00400 |
| Haiku 4.5 | $0.00005 | $0.00200 |
Grade A, and why
price-scout 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 7d 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 — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Price Scout
Core Principles
For most shops and restaurants, COGS (cost of goods sold) is the single largest expense — often 30-40% of revenue. A 5% reduction in food or product cost drops straight to the bottom line, often doubling net profit. Price Scout systematically tracks supplier pricing so you never overpay for an ingredient or product.
The Five Rules of Smart Procurement
- Never single-source. Every item should have at least 2 qualified suppliers. Competition drives prices down.
- Total cost, not unit price. A cheaper case that incurs $15 shipping and requires $200 minimum order may cost more in reality.
- Price isn't the only variable. Reliability, delivery windows, payment terms, and quality consistency all matter. Score suppliers holistically.
- Renegotiate quarterly. Suppliers expect to be asked. If you haven't negotiated in 6 months, you're overpaying.
- Monitor trends. When beef prices rise industry-wide, no supplier can beat the market — but they can give you better forward pricing or substitution options.
Skill Workflow
Step 1 — Build the Supplier & Price Database
Ask the user to list their key suppliers and items:
| Supplier | Item | Unit | Current Price | Last Price | Date Last Ordered | Min Order | Delivery Fee |
|---|---|---|---|---|---|---|---|
| Sysco | Chicken Breast (40lb) | Case | $98.50 | $94.20 | Mar 5, 2025 | $250 | $15 |
| US Foods | Chicken Breast (40lb) | Case | $96.00 | $96.00 | Feb 20, 2025 | $300 | Free over $500 |
| Local Farm Co. | Chicken Breast (40lb) | Case | $105.00 | $105.00 | Jan 15, 2025 | $100 | $10 |
For each item, calculate:
- Price trend: Is this item up, down, or flat vs. last order?
- Savings opportunity: Lowest price vs. current supplier
- Total cost comparison: Unit price + allocated delivery fee + value of payment terms
Step 2 — Run Price Comparison by Item
For every item sourced from multiple suppliers, generate a comparison:
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.
- 7d ago First seen · 168 lines · 47 tokens per session scan A 1aa4983ae2b1
price-scout is a skill published in the GitHub repository cosmicstack-labs/mercury-agent-skills (470 stars, last pushed 17d ago), licensed MIT. It adds 47 tokens to every session and 1,999 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 2026-09-03.
Other skills, from other repositories
muapi-amazon-product-listing
Generate a complete Amazon product listing image set — hero image, lifestyle shot, infographic with features, and comparison/detail closeups optimized for Amazon standards.
muapi-multi-angle-shots
Generate a complete set of multi-angle product shots — front, side, back, top-down, and 45-degree perspective — for comprehensive product visualization.
commerce-app-business-config
Manage custom business configuration in an Adobe Commerce app. Use when the user wants to add, modify, or remove merchant-configurable settings (config fields, admin config, store configuration) exposed through Commerce Admin. Creates typed config fields (text, password, email, url, tel, boolean, list) in…
marketplace-purchase-vetting
Use this when the user asks whether a local listing is a scam, "too good to be true," worth looking at, or a good deal. Also use this when he asks you to find options — search/discover candidates, then vet the best ones. The goal is not a generic buying guide; it is a practical risk read with clear next steps.
agent-ready-mpp
Sub-skill: Implement MPP Payment Discovery. Publish OpenAPI with x-payment-info extensions so AI agents discover payable endpoints via Machine Payment Protocol (mpp.dev).
saas-mvp-launcher
Structured roadmap and design to plan and launch a SaaS MVP from scratch / Panduan terstruktur untuk merencanakan dan meluncurkan SaaS MVP dari nol.