Preprint describes policy-binding layer for DeFi AI agents

A preprint introduces PACE, a transaction-authorization framework intended to sit between an LLM-based DeFi agent and on-chain execution. It uses typed transaction intents, a deterministic policy verifier and signed decision records that bind an approved intent, policy and simulation report to execution bytes. In a deterministic sandbox covering 2,800 trials, the authors report no unsafe executions or benign-task false positives. The accompanying smart account measured 29,826 to 31,822 gas of overhead.