Developer Documentation & Protocol Specs

The Intent Authorization Lifecycle

Autonomous economic agents operating corporate payment rails require deterministic boundaries. Traditional financial controls check whether a corporate card has sufficient credit limit; TRUSTY verifies whether the proposed purchase matches the human instruction before the transaction is executed.

The 5-Stage Verification Sequence

1. Mandate Formulation & Cryptographic Hash: The human principal issues a procurement instruction (e.g. “Buy 20 laptops, min 16GB RAM, max $20,000 for Miami HQ”). TRUSTY produces a structured mandate and signs a SHA-256 digest: H(Mandate).
2. Action Proposal & Cart Evidence Capture: The AI purchasing agent compiles a cart and submits itemized SKU evidence, vendor credentials, pricing, and destination details.
3. Deterministic Intent Evaluation: TRUSTY cross-references every criterion with a strict MATCH | MISMATCH | UNKNOWN result. Price checks alone do not satisfy the check: staying under budget with incorrect quantities or specifications is immediately flagged.
4. Human-in-the-Loop Exception Routing: Discrepancies or unverified vendors are pushed to the corporate review queue. Finance leads can inspect the deviation, approve an explicit one-time exception, or reject the purchase.
5. Cryptographic Decision Binding & Settlement: Approvals are bound to H(Mandate) || H(Cart). Corporate payment cards (Brex, Ramp, Slash) execute the checkout, and TRUSTY records an immutable audit trail for accounting reconciliation.