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First, before hiring agents to purchase content, the orchestrator enforces policy rules checking that price is within budget, trust score is above threshold, and wallet is valid, with agents that fail these checks receiving a BLOCKED status. Second, covenant accounts create mandate-bounded credit lines where operators get execution rights but not custody, with every cycle publishing a recomputable receipt and any third party able to pause the vault and slash the bond. Third, a sponsor can reserve USDC capacity for an agent, with the agent signing a bounded spend intent, the contract paying approved providers from the reserve, and oversized requests blocked before funds move. Each agent hire creates a payment receipt linked to the query ID, creating a receipt chain that documents all spending and enables verification of budget compliance.