POST /private/ai_name accepts a social event. Past Coins, Crops, OCR, and
Image Edit do not: Past Coins accepts one query plus optional requestId and
providers, Crops and OCR accept only requestId and images, and Image Edit
accepts prompt plus optional requestId and images.
event is the only top-level field.
Event node
The rootevent and each nested subtweet use the same shape.
Unknown fields are rejected. Use the dedicated
images request documented in
the API reference for Crops and OCR.
Equivalent input may join work already in progress or reuse a completed
result. This does not add cache metadata to the response.