Can I vibe code Sellzone?

Build a custom Amazon Listing Hijack and A/B Testing tool in Node.js and PostgreSQL using the official Amazon SP-API.

1. DATA MODEL:
- Store SP-API credentials (LWA Refresh Token, Client ID, Client Secret, Seller ID).
- Track monitored ASINs: asin, sku, target_buybox_seller_id, baseline_price, check_frequency_minutes.
- Hijack Alert Log: asin, detected_seller_id, buybox_price, alert_sent_at, resolved_at.
- Split Experiments: experiment_id, asin, variant_a_title, variant_b_title, current_variant, swap_interval_days, start_date, end_date.
- Performance Logs: experiment_id, variant, date, impressions, units_sold, sessions, revenue.

2. CORE FUNCTIONALITY:
- Implement LWA OAuth token rotation logic for SP-API calls.
- Build a background worker using BullMQ to fetch competitive pricing via the SP-API Product Pricing API ('/products/pricing/v0/competitivePrice').
- Compare returned Buy Box seller ID against target_buybox_seller_id; trigger SendGrid/Slack notification if an unauthorized seller holds the Buy Box.
- Implement a cron job for listing A/B tests: every N days, call the SP-API Listings Items API ('/listings/2021-08-01/items/{sellerId}/{sku}') to update title/description to the alternative variant.
- Fetch Sales and Traffic Reports via SP-API Reports API to measure sales conversion deltas per variant.

3. FAILURE MODES & RESILIENCE:
- Implement exponential backoff for SP-API HTTP 429 rate limit responses.
- If SP-API listing update fails due to catalog lock, notify admin and suspend experiment automated swaps.

4. OUT OF SCOPE:
- Reverse ASIN search volume calculation and external traffic source analytics (rely on native Amazon reports instead).

$ each button prefixes agent-specific run instructions · build your own product, never copy proprietary code, trademarks or designs