Integration guide written for an automated agent, at the conventional path.

Customers increasingly point an agent at an API rather than reading the docs themselves, and an agent that has to infer the contract gets it wrong in predictable ways. This encodes what three independent evaluations each had to learn the hard way — set a client timeout, handle the 202 hand-off, retry a 503 once, never assert an exact word count, upload PCM for the tightest timings — alongside the endpoint reference and an explicit action per error code.

Unauthenticated on purpose: an agent evaluating whether to integrate should be able to read it before a key exists. It describes the contract only, never how any of it is implemented.