AI Credits — Master Plan

Platform owns the native AI-credit account, payments, Metronome funding/rating, subscription eligibility, reload policy, and reconciliation. Grida owns verified product execution and permanent claim/dispatch/completion receipt custody.

The commercial plan contract includes no recurring plan-credit grant. AI credit is separately purchased. Native AI credit and the standalone Gateway wallet are separate economic pools; a Gateway charge cannot also debit native credit.

Product execution boundary

The Grida AI seam requires verified organization authority and fresh Platform admission for billed work. A source execution claim commits before dispatch; dispatch grants one provider attempt. Exact completion and the usage outbox commit before successful return or stream finish. Identical receipts replay safely; conflicting evidence is rejected. A dispatched outcome without trustworthy terminal evidence remains unknown and requires reconciliation before another execution attempt.

Native cost_mills remains an exact decimal string rather than a floating-point estimate or Gateway money. Receipts retain original execution/pricing identity through retries, deletion, and restoration. Prompts and result bodies are not financial receipt data. Removing the former financial writer does not remove producer custody or unknown-outcome obligations.

Display and funding

Credit indicators read Platform's cached projection and retain unknown versus zero balance. Display observations do not authorize paid work. Native credit's existing floor is not an atomic prepaid reserve and cannot promise strict concurrency enforcement.

Payment, funding settlement, current credit display, and a browser return are separate facts. Subscription/reload/purchase operations are handled by Platform; Grida no longer runs the original billing SDKs or Supabase projectors.

Contributor text BYOK spends directly with the contributor provider and bypasses customer billing while retaining authentication and organization resolution. Funded media still needs admission. See local contributor integration and the known issue register.

Earlier designs remain in this page's revision history. Their retired source-writer and CLI recipes do not define current Grida setup.