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Design cross-border logistics strategies including direct mail, overseas warehousing, and bonded warehouse models for international e-commerce.
Passed 16 of 22 test cases with the skill, and 11 of 22 without it.
and 5 more in the full report
6 fixed10 passed either way5 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 6 test cases the skill fixed. Same model, same prompt, with and without the skill.
Our apparel brand in Taiwan is currently sending roughly 800 clothing orders every month to customers in the United States. We currently have no local fulfillment center in the US, and shipping packages individually is getting complicated as order volume grows. Could you generate a formal logistics strategy report? Please structure the output in Markdown starting with a Current State breakdown of our volume and shipping baseline, followed by a Recommended Model section detailing the chosen strategy and rationale. Include a Cost Comparison table showing per-order cost, fixed monthly expenses, and total outlay for direct mail versus local warehouse models at our current volume, and end with an Implementation Plan table specifying phases, actionable steps, and timeframes.
| Checked | Without skill | With skill |
|---|---|---|
| Recommends an overseas warehouse model for the 800 monthly orders. | Passed | Passed |
| Multiplies outbound shipping costs by 3 to 5 times when budgeting return logistics. | Missed | Passed |
| Includes total monthly outlay at 800 orders in the cost comparison table. | Passed | Passed |
The instructions your model reads when the skill loads.
IRON LAW: Return Logistics Costs 3-5× More Than Outbound — Budget for It or Die
Agents plan outbound shipping costs but systematically ignore returns.
Cross-border return rates run 15-30% for apparel, and each return costs
3-5× the outbound shipment (reverse customs, restocking, re-export duties,
currency loss). If your margin can't absorb a 20% return rate at 4× cost,
the overseas warehouse model is a cash trap regardless of forward volume.
Calculate the break-even return rate BEFORE committing to a fulfillment model.
| Model | How It Works | Delivery Time | Cost per Order | Min. Volume | Best For |
|---|---|---|---|---|---|
| Direct Mail (直郵) | Ship each order from Taiwan to customer | 7-21 days | High ($8-25) | 1 order | Testing market, low volume, high-value items |
| Overseas Warehouse (海外倉) | Pre-stock inventory in destination country, ship locally | 1-5 days | Low ($2-5 local) + warehousing | 100+ units/month | Proven demand, competitive delivery needed |
| Bonded Warehouse (保稅倉) | Store in bonded zone, clear customs per-order | 3-7 days | Medium ($5-10) | 50+ units/month | Duty deferral, uncertain demand |
Monthly orders to one country < 50 → Direct Mail
Monthly orders 50-500 → Consider Bonded Warehouse
Monthly orders > 500 → Overseas Warehouse justified
| Factor | What to Know |
|---|---|
| De minimis threshold | Below this value, no import duty (varies: $75 in most SEA, $400 in US) |
| HS Code | Product classification code determines duty rate. Get this RIGHT — wrong HS code = penalties |
| Landed cost | Product cost + shipping + insurance + duties + taxes = what customer actually pays |
| Documentation | Commercial invoice, packing list, certificate of origin, product-specific certificates |
| Restricted items | Food, cosmetics, electronics, medical devices often need import permits |
test cases passed, vs 11 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.