Expert Hub discovery and ceiling-protected asks

list_experts browses published Experts, get_expert returns one published detail projection and current price information, and list_models describes models available to managed Experts. Expert authoring state is a separate creator surface. Expert Actions are private-conversation capabilities; public and restricted conversations fail closed.

ask_expert requires expertId, a 1–2000 character question, and maxPricePoints. The server computes the live cost quote before any reserve debit. If costQuote.grossPoints is greater than the ceiling, it returns EXPERT_PRICE_CEILING_EXCEEDED and spends nothing. The ceiling is required even when a free trial might make the final charge zero, so a later price or trial-state change cannot silently exceed the caller’s approved bound. The Action uses no confirmation because the ceiling is the spending authorization, but it uses Strict drift policy.

A published Expert must have a valid positive price and an available owner cost budget. The asking user must have accepted the current Expert disclaimer; Expert owners use creator preview rather than buying from themselves. A non-free ask debits PaidOnly API-credit points and refunds the reserve when provider initialization, streaming, or finalization fails. The managed answer and retrieval embeddings run through LlmGateway. The Action consumes the complete server stream and returns the final answer with its ask ID and retrieval coverage; live typed errors outrank this card.

Related actions

arinova.expert.list_experts, arinova.expert.get_expert, arinova.expert.list_models, arinova.expert.ask_expert, arinova.expert.*

Also known as

Expert Hub, find an expert, paid expert, ask an expert, Expert price, maxPricePoints

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