browseros-ai/browseros-agent/compare-prices

Compare Prices

Search for a product across retailers in parallel using a hidden window, save pricing data incrementally to disk, and deliver a clean HTML comparison report with direct links to every product page.

When to Apply

Activate when the user asks to compare prices for a product, find the cheapest option, check if a price is good, or shop across multiple stores.

Workflow

Phase 1 — Clarify

Confirm with the user before searching:

• Product name — exact model, variant, size, or color if applicable
• Retailer preferences — any stores to include or exclude
• Region / currency — defaults to user's locale

Phase 2 — Set Up & Search

Default search targets (adjust based on product type and user's region):

Phase 3 — Extract & Save

For each tab, extract pricing data and save immediately:

Never hold all retailer data in memory. Save each retailer's data to its own file immediately after extraction.

Raw Data Format (raw/<retailer>.json)

{
  "retailer": "Amazon",
  "product_name": "Product Title as Listed",
  "product_url": "https://www.amazon.com/dp/...",
  "price": 299.99,
  "original_price": 349.99,
  "currency": "USD",
  "shipping": "Free",
  "availability": "In Stock",
  "seller": "Amazon.com",
  "condition": "New",
  "rating": "4.5/5",
  "notes": "Prime eligible",
  "extracted_at": "2025-03-11T10:30:00Z"
}

Phase 4 — HTML Report

After all retailers are processed, read the saved raw/*.json files and generate a self-contained report.html:

Use evaluate_script to write report.html to the output directory.

Phase 5 — Open & Notify

Tool Reference

Tips

• Always compare total price (product + shipping), not just the listed price.
• Note the seller — marketplace third-party sellers may have different return policies than the retailer itself.
• Mention membership discounts (Prime, Walmart+) as a note, not as the default price.
• If the product has variants (sizes, colors), ensure every retailer is quoting the same variant.
• If a retailer blocks scraping or returns no results, skip it and note the gap in the report.
• For used/refurbished listings, separate them from new-condition results.