const offer = await mcp.useTool('inventory_createOffer', {
  sku: 'WIDGET-001',
  marketplace_id: 'EBAY_US',
  format: 'FIXED_PRICE',
  listing_duration: 'GTC', // Good 'Til Cancelled
  available_quantity: 50,
  category_id: '12345',
  
  // Pricing
  pricingSummary: {
    price: { value: '29.99', currency: 'USD' }
  },
  
  // Policies (from Account API)
  listing_policies: {
    payment_policy_id: 'payment_id',
    return_policy_id: 'return_id',
    fulfillment_policy_id: 'fulfillment_id'
  },
  
  // Optional: Merchant location key
  merchant_location_key: 'warehouse-1'
});

console.log(`Offer created: ${offer.offerId}`);

// Publish single offer
const listing = await mcp.useTool('inventory_publishOffer', {
  offer_id: offer.offerId
});

console.log(`✅ Published! Listing ID: ${listing.listingId}`);
console.log(`View at: https://www.ebay.com/itm/${listing.listingId}`);

await mcp.useTool('inventory_updateOffer', {
  offer_id: 'offer_id_here',
  pricingSummary: {
    price: { value: '24.99', currency: 'USD' } // Price drop!
  },
  available_quantity: 100 // Restocked
});

await mcp.useTool('inventory_withdrawOffer', {
  offer_id: 'offer_id_here'
});

console.log('✅ Listing ended');

await mcp.useTool('inventory_deleteOffer', {
  offer_id: 'offer_id_here'
});