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assembl

agent-ready · car dealers

Somebody’s AI just asked about one of your cars.

Buyers are starting to shop through ChatGPT and Claude. Agent-ready means the assistant answers with your stock, your price and your rules, and a person on your floor says yes.

01 · the problem

The enquiry belongs to someone else.

Today the enquiry comes through Trade Me or Facebook Marketplace. They hold the listing, the message and the buyer’s details, and you pay to be in the queue. The assistant is the next channel, and it does not browse listings. It asks a question and takes the first good answer.

If your stock is not readable, the assistant answers with a dealer whose stock is. The buyer never finds out you had the car.

02 · what agent-ready means for a dealer

Four things, and nothing clever.

  • your stock

    The cars on the yard

    Every car on your feed has one record an assistant can read: year, model, kilometres, price, where it is. From your DMS export or your listing feed, not a copy somebody typed up.

  • your rules

    Price, hours, promises

    The price you set, the hours you keep, which cars can be held and for how long, and what an assistant may never promise on your behalf. The rules travel with the record.

  • a person’s yes

    Test drives and holds

    An assistant can ask for a test drive or a hold. The request lands with a named person on your floor, who says yes or no. Nothing binds until they do.

  • a receipt

    Every action, on file

    What was asked, what was answered, who approved it and when. One readable record for every enquiry an assistant brings you.

A rendered showroom from the dealer twin: one simulated car on a turntable under studio lightSimulated · Harbour Lane Motors, a fictional dealer

03 · the dealer twin

A Tuesday at a dealer, run on agents.

Harbour Lane Motors is a fictional dealer with 48 simulated cars. The twin runs a day across eight departments, and its agent desk is the counter where ChatGPT and Claude get served: a buyer asks, the assistant finds the car, a sales consultant says yes. Every number on it is labelled.

04 · the car mcp address

One address, every assistant.

This is the twin’s own endpoint, the same one its agent desk uses. Add it to Claude or ChatGPT as a connector and ask for a car. The endpoint is live; the stock is simulated, so it can never be mistaken for real cars for sale.

Live endpoint · simulated stockhttps://assembl-lab.vercel.app/api/mcp/

  • search_carsFind stock by body, fuel, budget, kilometres and regionRead-only
  • get_carOne car’s full recordRead-only
  • car_checkThe model’s facts from NZTA’s open register, never a plate or an ownerRead-only
  • running_costFuel, road user charges, servicing and licence, as an estimateRead-only
  • book_test_driveA request the dealer would confirmSimulated
  • hold_carA request the dealer would confirmSimulated

No sign-in, no side effects. The two Simulated tools return a request a person at the dealer would have to confirm; nothing is booked, held or sent.

05 · what a person approves

Nothing binds until a person says yes.

  1. 01A test drive, before it goes in the diary.
  2. 02A hold on a car, before the car comes off the floor.
  3. 03Any price other than the one on the record.
  4. 04Any message that goes back to the buyer in the dealer’s name.

Each yes leaves a receipt: what was asked, what was done, who approved it. How receipts work.

what it would take

Your stock feed, a person who can say yes, and a week.

We start with one site. You keep Trade Me and Facebook; this adds the channel they cannot give you.