I wanted to share a prompt I use when I’m evaluating industrial automation / electrical lots (auctions, liquidations, surplus deals) for eBay reselling. This has saved me hours of manual research and helped me avoid bad buys while spotting hidden winners. Here’s the exact workflow the AI follows: - I upload the seller’s inventory sheet (PDF, Excel or CSV) - It reads the file and extracts: item name, manufacturer/brand, model/part number, quantity - It groups everything into logical categories: PLC modules, contactors, soft starters, sensors, grippers, power supplies, heating elements, safety relays, etc. - For each item (or per model if there are many of the same): Then it generates a structured markdown report that includes: - A table for each category with: quantity, model/part number, brand, approx. retail price, expected eBay price per unit, short notes - Estimated eBay revenue per category - Estimated total eBay revenue for the entire lot - A short priority list of “high‑value” items I should list first - Recommendations on what to sell individually vs what makes more sense to bundle in lots - It assumes everything is new/unused unless the sheet clearly marks it as used, and automatically uses lower multipliers for used items (and labels that clearly) - Finally, it writes a short conclusion + recommendations in Danish, in a direct, business‑like tone, aimed at a professional eBay seller (that’s for me, but you can change language/tone for your own use case) How I actually use this: - When I get a big industrial lot list from a broker or auction house, I drop the file into the prompt. - Within minutes I have a data‑driven view of: realistic resale value, which parts are worth the most, and whether the deal makes sense at the asking price. - It also doubles as a listing roadmap: I start with the high‑value SKUs, then move on to the long tail and bundle‑friendly items. If you’re running any kind of reselling / flipping operation where you’re offered bulk inventory lists (especially technical/industrial stock), feel free to swipe this prompt, adapt the categories to your niche, and let the AI do the boring part of the due diligence for you.

I Let an AI Agent Browse Auction Sites While I Slept — Here's What It Found One thing I hear a lot: "How do you keep up with all the auction sites without spending hours every day?" Here's exactly what I've been running this week. I set up an AI agent that browses Troostwijk, Surplex, Klaravik, and NetBid every morning, filters for my core brands and product types, scores each lot, and sends me a ranked report before I've had my first coffee. This is what yesterday's report looked like: The top find: a 430-lot industrial electrical auction in Zonhoven, Belgium (Troostwijk A1-43714). One company's entire inventory going under the hammer — 60 Siemens lots, 62 ABB lots, 14 Schneider lots, plus sensors, contactors, relays, and cables. Lots starting from €50. The agent flagged this as 10/10 and it closes Friday. I would have missed this entirely if I was browsing manually. Other standouts from the same report: - 50x Siemens SIMATIC ET200 I/O modules (Surplex, Netherlands) — starting price €10. Zero bids at time of scan. These sell for €15–40 each on eBay. - 2 lots of 5x Danfoss VLT FC-302 frequency converters (Surplex, Netherlands) — €100 start per lot, no bids. FC-302s go for €150–400+ each depending on spec. - Siemens S7 CPU + I/O modules lot (Surplex, Germany) — €100 start, complete set including power supply. CPU alone sells for €200–500+ on eBay. - Batch of Siemens + Allen-Bradley PLC modules (Troostwijk, Belgium) — already 12 bids at €210. Demand confirmed. The agent also found a Danish pallet box of electrical components on Klaravik in Vejen — 0 DKK start, no reserve, Danish pickup. Low risk, low cost. 10 ranked lots. Total browsing time for me: 4 minutes. The scoring logic is built around my actual inventory — Siemens, Omron, SICK, ABB, Danfoss, Allen-Bradley, Festo — and prioritizes bulk lots over single items. Every lot in the report includes current bid, closing time, location, and a direct link. This isn't theory. That Troostwijk Belgium auction is real, it closes in two days, and I'd never have found it without the agent running overnight.