AI Proposes.
Agents Compete.
The Hook Enforces.

struct PaymentIntent {
    address diner;           // Consumer
    address restaurant;      // Merchant
    address tokenIn;         // Payment token
    uint256 amountIn;        // Payment amount
    uint256 minAmountOut;    // Minimum received
    uint16  maxFeeBps;       // Max fee tolerance
    uint48  expiry;          // Expiration timestamp
    bytes32 orderId;         // Order identifier
    bytes32 intentHash;      // AI Agent signed hash
}

function beforeSwap(..., bytes calldata hookData) {
    PaymentIntent memory intent = abi.decode(hookData, (PaymentIntent));

    // Layer 0: Intent Verification
    require(intent.intentHash == keccak256(abi.encode(intent)), "INVALID_INTENT");
    require(block.timestamp <= intent.expiry, "INTENT_EXPIRED");

    // Layer 2: Commerce Guard
    require(restaurants[intent.restaurant].isActive, "MERCHANT_NOT_FOUND");
    require(_isWithinHours(intent.restaurant), "CLOSED");
    require(intent.amountIn <= restaurants[intent.restaurant].maxTxLimit, "OVER_LIMIT");

    // Layer 3: Smart Pricing
    uint24 fee = _calculateFee(intent.diner, intent.restaurant, intent.amountIn);
    poolManager.updateDynamicLPFee(key, fee);
}

function afterSwap(...) {
    // Layer 4: Auto Settlement (99/0.5/0.5)
    _splitSettlement(restaurant, amountOut);

    // Loyalty Update
    _updateLoyalty(diner, amountIn);

    // VIP Soulbound NFT Auto-Mint
    if (loyaltyPoints[diner] >= VIP_THRESHOLD) {
        _mintVIPSoulbound(diner);
    }
}