>- Track and compare supplier prices across multiple vendors to reduce COGS. Monitors price changes, identifies savings opportunities, calculates total cost of ownership (including delivery fees and minimums), and generates renegotiation briefs.
npx skills add https://github.com/cosmicstack-labs/mercury-agent-skills --skill price-scout
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.
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:
For every item sourced from multiple suppliers, generate a comparison:
📊 PRICE COMPARISON — Chicken Breast (40lb case)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Supplier | Price | Delivery | Min Order | Effective Cost* | Rating
──────────────────|─────────|──────────|───────────|─────────────────|───────
US Foods | $96.00 | Free** | $300 | $96.00 | ⭐ Best
Sysco | $98.50 | $15 | $250 | $104.72† |
Local Farm Co. | $105.00 | $10 | $100 | $110.00‡ |
*Effective cost includes allocated delivery fee based on average order size
**Free over $500 — your average US Foods order is $680, so effectively free
† Based on avg order of 3 cases = $98.50 + ($15 ÷ 3) = $103.50
‡ Based on avg order of 2 cases = $105 + ($10 ÷ 2) = $110.00
💰 **Savings opportunity: $2.50/case** by switching from Sysco to US Foods
📈 **Price trend:** Chicken breast up 4.6% industry-wide since Jan
🔮 **Forecast:** Expected to rise another 2-3% next quarter — consider forward buying
When prices spike on a key item, suggest alternatives:
> "Ribeye is up 18% this month. Consider these substitutions:
> - Flat iron steak — similar tenderness, 35% cheaper ($12.50/lb vs $19.20/lb)
> - Tri-tip — excellent for grilling, 28% cheaper
> - Grass-fed sirloin — different flavor profile, but 15% cheaper and on-trend
>
> Would you like me to draft a specials menu featuring one of these alternatives?"
When prices have drifted or the user hasn't negotiated recently:
> 📋 Renegotiation Brief: Sysco
>
> Your current spend with Sysco: ~$2,400/month
> Items where you're over market:
> - Chicken Breast: $98.50 vs US Foods $96.00 (2.6% above market)
> - Cooking Oil: $42.00 vs Restaurant Depot $38.50 (9.1% above market)
> - Paper Goods: $38.50 vs multiple suppliers $34.00 (13.2% above market)
>
> Suggested talking points:
> 1. "I've been a loyal customer for 2 years, spending ~$29k/year"
> 2. "US Foods is offering chicken breast at $96.00 and paper goods at $34.00"
> 3. "Can you match these three items — if so, I'll consolidate all my ordering with you"
>
> Target savings: $175/month | Annual impact: $2,100
Alert the user to upcoming contract milestones:
> ⏰ Reminder: Your produce supplier contract renews in 30 days. Current terms: Net 30, 2% early payment discount. Industry standard has shifted to Net 45. Ask for extended terms or a volume discount.
When the user is considering buying in bulk or frozen vs. fresh:
> Bulk vs. Regular Analysis: Tomato Sauce
>
> | Option | Unit Cost | Shelf Life | Storage Need | Effective Cost |
> |--------|-----------|-----------|-------------|---------------|
> | #10 can (6-pack) | $4.20/can | 18 months | Dry shelf | $4.20 |
> | 1 gallon pouch (6-pack) | $3.85/pouch | 12 months | Dry shelf | $3.85 |
> | 5 gallon bag-in-box | $3.10/gallon | 6 months | Cool, dry | $3.10 |
>
> Recommendation: The 5-gallon bag-in-box is 26% cheaper but requires cool storage. Do you have space in the back dry storage area? If yes, switch to save ~$28/month.
| Phrase | What Happens |
|--------|-------------|
| "Compare prices for [item]" | Shows side-by-side supplier comparison for that item |
| "Find me a better deal on [item]" | Searches for alternative suppliers or substitutions |
| "Review my suppliers" | Full supplier audit — price comparison + renegotiation briefs |
| "What's my biggest cost savings opportunity?" | Identifies the single item with the largest savings potential |
| "Negotiation prep for [supplier]" | Generates a renegotiation brief with talking points |
| "Track [item] price trends" | Shows price history and forecast for that item |
| "Should I buy [item] in bulk?" | Runs bulk vs. regular cost analysis |
| "Any supplier contracts expiring soon?" | Lists upcoming contract renewals and term review |
*"Every dollar saved in procurement is a dollar of pure profit."*
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Take cosmicstack-labs/price-scout from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.