GarageBot
private repo- problem
- Independent auto repair shops lose bookings every week because nobody can pick up when they're under a car or the shop is closed. Industry data puts missed calls at 20–30% of inbound volume, and the average repair job at independent shops in Australia runs AU$250–400. If a shop misses just 3 to 5 bookings a week, that's roughly AU$39,000 to AU$104,000 a year. That range is my own arithmetic from those two figures, not a measured result for any one shop.
- what I built
- an AI receptionist for Australian auto repair shops. It answers phone calls around the clock, trained on each shop's own hours, services and prices, then hands the shop a job card with the caller's details. Fewer missed calls, fewer lost bookings, no extra staff.
- Multi-tenant RAG on FastAPI: a separate ChromaDB collection per shop so one shop's data never enters another's answers.
- OpenAI-compatible streaming endpoint used as a Telnyx AI Assistant's custom LLM. Tuned prompts to keep spoken replies to about 15 words.
- Debugged real call failures from raw requests: caller identity fields, retried webhooks, and a flaky tunnel behind slow replies.
▶ recorded callweb test call
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