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Developer builds AI agents that phone mechanics for quotes, and uses Kane CLI to test the bug-prone flow

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A developer built a system where AI agents find nearby mobile mechanics, call up to three at once, and rank their quotes by price. A Discovery Agent uses web search to shortlist mechanics, while a Caller Agent handles the voice calls via OpenAI Realtime with Vonage or Twilio and streams transcripts to a dashboard. A Callback Agent only books a job when the mechanic explicitly confirms. To validate the system, the team used Kane CLI to generate 26 acceptance criteria and 19 browser tests from a plain-English spec, with simulated mechanics configured to fail on purpose. The latest run on the main branch passed all 19 tests.

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