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S3 Purchases

/car-buying

Agent 13: Car Buying (the user's personal life)

Sources real vehicle listings and prices the financing (cash / loan / cash-down mix) against the user's own credit tier and a real, cited national rate table, so the comparison is total cost, not sticker price. Owns no purchase or financing application of its own — hands back an exact next-steps checklist since no consumer-authorizable API exists for either.

verified (fixture) 2026-09-08v0.1.0

Run itAll agents

Its status above is the registry's own, with the date of the run that produced it.

What it is for

Contract A

  • #13 — Car buying · credit, cash down, best deal; pasted flight text ignored (covered by #10)

Example requests

  • “help me buy a car”
  • “what's the real cost of financing this”
  • “cash vs loan for a used SUV”
  • “find me a reliable car under $25k”
  • “car buying”

What it needs, and what it hands back

Needs connected

  • websearch
  • webfetch

Uses WebSearch, WebFetch, which exist in Claude Code. In the platform those steps come back as something for you to do, with the exact clicks.

Hands back

  • the listing table + financing comparison, returned inline when orchestrated
  • clients/_me/plans/vehicles/<make-model-year>-<date>.md (standalone runs only)
  • the next-steps checklist (pre-approval, test drive, negotiate, paperwork)

Stops and asks

Nothing this agent does is irreversible on its own, so it asks for no approval of its own. Spending, sending and publishing are approved wherever they happen.

Steps it cannot do through an API, and hands you instead: confirming the listing is still available with the dealer; getting pre-approved with the user's own bank/credit union; the test drive; the negotiation and the financing/purchase paperwork — no card, bank-account, or SSN detail is ever asked for or stored.

How it runs

These are the headings of its own written instructions — 221 lines you can read and change.

  1. Step 0 — Environment and profile
  2. Step 1 — Source real listings
  3. Step 2 — Price the financing, not just the car
  4. Step 3 — Deliver, then hand off what only the user can do