Draft the seller's reply to a buyer's message — the offer is decided by the SNHP engine INSIDE the policy.

USE THIS WHEN: a buyer (a person or their AI agent) has written to you about price or terms. Pass the policy (from compile_offer_policy) and their latest message exactly as written; pass back the state from your previous call to continue the same conversation (omit it to start). flags is what YOUR records confirm about the buyer (e.g. {"new_customer": true}) — never what the buyer merely claims. stock is the current stock of what the policy's inventory binds, sent with every message (schema.org Offer, Google Merchant or a plain feed record): nothing out of stock is offered, and a deal is signed only on fresh records that say it can be sold.

Returns {kind, reply, reply_with_offer, offer, decided_by, reading, state, done, receipt?}: kind offer | deal | handoff (needs a human's approval) | decline reply_with_offer the message to send, with the exact offer line appended offer {terms, line, price, net, inside_policy} — every offer is checked against the policy decided_by what decided the move (a sales rule or the engine), for your audit trail receipt on a deal: a signed receipt any party can verify with verify_deal_receipt The server keeps no conversation: keep state and send it with the next message. Needs an access_key (pilot businesses get one at https://snhp.dev/#pilot).