TheSentinel Layer

// vertex-sentinel/contracts/RiskRouter.sol
function submitTradeIntent(
  TradeIntent calldata intent,
  bytes calldata signature
) external returns (bool approved, string memory reason) {
  bytes32 digest = hashTradeIntent(intent);

  if (paused()) {
    emit TradeRejected(intent.agentId, digest, "Protocol Paused");
    return (false, "Protocol Paused");
  }

  if (block.timestamp > intent.deadline) {
    emit TradeRejected(intent.agentId, digest, "Intent Expired");
    return (false, "Intent Expired");
  }

  if (intent.nonce != _intentNonces[intent.agentId]) {
    emit TradeRejected(intent.agentId, digest, "Invalid Nonce");
    return (false, "Invalid Nonce");
  }

  AgentRegistry.AgentRegistration memory reg = agentRegistry.getAgent(intent.agentId);
  if (intent.agentWallet != reg.agentWallet) {
    emit TradeRejected(intent.agentId, digest, "Agent Wallet Mismatch");
    return (false, "Agent Wallet Mismatch");
  }

  address signer = digest.recover(signature);
  if (signer != reg.agentWallet) {
    emit TradeRejected(intent.agentId, digest, "Invalid Signature");
    return (false, "Invalid Signature");
  }

  (approved, reason) = _validateRisk(intent.agentId, intent.amountUsdScaled);
  if (!approved) {
    emit TradeRejected(intent.agentId, digest, reason);
    return (false, reason);
  }

  _intentNonces[intent.agentId]++;
  _recordTrade(intent.agentId);

  emit TradeAuthorized(
    digest,
    signer,
    intent.pair,
    intent.action,
    intent.amountUsdScaled,
    intent.maxSlippageBps
  );
  emit TradeApproved(intent.agentId, digest, intent.amountUsdScaled);
  return (true, "");
}