Diana Skill 4: Landed Cost Compare

{
  "cost": {
    "input_tokens": 145,
    "estimated_usd": 0.007095,
    "output_tokens": 444
  },
  "model": "claude-sonnet-4-20250514",
  "status": "success",
  "transport": "anthropic_api",
  "latency_ms": 12501,
  "response_text": "# Diana Skill 4: Landed Cost Compare - The Ultimate Price Truth Engine\n\n## Core Function\n**diana_landed_cost_compare** - The procurement game-changer that reveals the **TRUE cost** of products by calculating what you'll actually pay at delivery, not just the misleading sticker price.\n\n## What It Does\n\n### 1. **Total Cost Calculation**\n- **Base Price**: Starting product cost\n- **Shipping**: Real freight costs to your location\n- **Duties**: Precise tariff calculations via `calculate_duty`\n- **VAT/Taxes**: Local tax obligations\n- **FX Conversion**: Live currency exchange rates\n- **Compliance**: Certification and regulatory fees\n\n### 2. **Multi-Dimensional Comparison**\n- **Across Sellers**: Same product, different suppliers\n- **Across Origins**: Vietnam (0% duty) vs China (16.9% duty) vs others\n- **Across Channels**: Direct vs distributors vs marketplaces\n\n### 3. **Intelligent Ranking**\nReturns products ranked by **true delivered cost**, revealing:\n- Hidden savings opportunities\n- Best country of origin for your use case\n- Most cost-effective suppliers\n\n## Why This Kills Google's \"Best Price\"\n\n**Google Shows**: $100 product with \"Best Price\" badge\n**Diana Reveals**: \n- Product A: $100 + $15 shipping + $16.90 duty + $9 VAT = **$140.90**\n- Product B: $120 + $8 shipping + $0 duty + $10 VAT = **$138.00** ← *Actually cheaper*\n\n## Strategic Impact\n\nThis skill transforms procurement from **price guessing** to **cost certainty**, enabling:\n- True vendor comparisons\n- Optimal country sourcing decisions  \n- Budget accuracy\n- Supply chain optimization\n\n**Result**: You always know the real cost before you buy, making every purchasing decision data-driven and optimal."
}