diff --git a/packages/hardhat/.gitignore b/packages/hardhat/.gitignore
index 7c693176..43dc355f 100644
--- a/packages/hardhat/.gitignore
+++ b/packages/hardhat/.gitignore
@@ -7,6 +7,7 @@ typechain-types
 
 # Hardhat files
 cache
+cache_forge/
 artifacts
 gas-report.txt
 solidity-files-cache.json
@@ -14,3 +15,4 @@ deployments/sepolia
 deployments/goerli
 deployments/optimismGoerli
 results.sarif
+broadcast/
diff --git a/packages/hardhat/foundry.toml b/packages/hardhat/foundry.toml
index b382b7b9..088e28b9 100644
--- a/packages/hardhat/foundry.toml
+++ b/packages/hardhat/foundry.toml
@@ -9,3 +9,11 @@ allow_paths = ["../../node_modules"]
 # See https://github.com/foundry-rs/foundry/issues/4988#issuecomment-1556331314
 evm_version = 'paris'
 solc_version = '0.8.19'
+
+[rpc_endpoints]
+goerli = "${GOERLI_RPC_URL}"
+optimism_goerli = "${OPTIMISM_GOERLI_RPC_URL}"
+
+[etherscan]
+goerli = { key = "${ETHERSCAN_API_KEY}" }
+optimism_goerli = { key = "${ETHERSCAN_API_KEY}" }
diff --git a/packages/hardhat/script/jump.sol b/packages/hardhat/script/jump.sol
new file mode 100644
index 00000000..741b2ae5
--- /dev/null
+++ b/packages/hardhat/script/jump.sol
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.19;
+
+import 'forge-std/console2.sol';
+import 'forge-std/Script.sol';
+import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
+import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
+import {IWarpLink} from 'contracts/interfaces/IWarpLink.sol';
+import {WarpLinkCommandTypes} from 'contracts/facets/WarpLink.sol';
+import {IStargateRouter} from 'test/foundry/helpers/IStargateRouter.sol';
+import {IAllowanceTransfer} from 'contracts/interfaces/external/IAllowanceTransfer.sol';
+import {PermitParams} from 'contracts/libraries/PermitParams.sol';
+import {Goerli, OptimismGoerli, Addresses} from '../test/foundry/helpers/Networks.sol';
+import {PermitSignature} from 'test/foundry/helpers/PermitSignature.sol';
+
+/**
+ * Bridge mock USDC from Goerli to Optimism-Goerli and invoke WarpLink on the other
+ * side, but with no commands.
+ *
+ * Adding commands would be even more interesting, but
+ * there are no actions that can be made using Statgate mock USDC.
+ *
+ * Invoke this script using:
+ * forge script script/jump.sol --rpc-url goerli --no-storage-caching -vvvv --broadcast
+ */
+contract JumpGoerli is Script, WarpLinkCommandTypes, PermitSignature {
+  address goerliDiamondAddr = 0x2A104392321e978495dBC91b68914eDbA3126D9c;
+
+  function setUp() public {}
+
+  function run() public {
+    uint256 privateKey = vm.deriveKey(vm.envString('DEV_MNEMONIC'), 1);
+    address user = vm.rememberKey(privateKey);
+
+    console2.log('User: %s', user);
+
+    uint48 deadline = uint48(block.timestamp) + 60 * 60 * 24 * 365;
+
+    IWarpLink.Params memory destParams = IWarpLink.Params({
+      tokenIn: address(0), // Unused
+      tokenOut: OptimismGoerli.STARGATE_MOCK_USDC_ADDR,
+      commands: abi.encodePacked(
+        (uint8)(0) // Command count
+      ),
+      amountIn: 0, // Unused
+      amountOut: 0, // TODO
+      recipient: user,
+      partner: address(0),
+      feeBps: 0,
+      slippageBps: 0,
+      deadline: deadline
+    });
+
+    bytes memory destParamsEncoded = abi.encode(destParams);
+
+    uint256 srcAmountIn = 100 * (10 ** 6);
+    uint256 dstGasForCall = 500_000;
+    uint16 dstChainId = OptimismGoerli.STARGATE_CHAIN_ID;
+
+    bytes memory sourceCommands = bytes.concat(
+      abi.encodePacked(
+        (uint8)(1), // Command count
+        (uint8)(COMMAND_TYPE_JUMP_STARGATE),
+        (uint16)(dstChainId), // dstChainId (Goerli)
+        (uint8)(1), // srcPoolId (USDC)
+        (uint8)(1), // dstPoolId (USDC),
+        uint32(dstGasForCall), // dstGasForCall
+        uint256(destParamsEncoded.length) // NOTE: Unnecessarily large type
+      ),
+      destParamsEncoded
+    );
+
+    (uint256 nativeWei, ) = IStargateRouter(Goerli.STARGATE_ROUTER_ADDR).quoteLayerZeroFee({
+      _dstChainId: dstChainId, // Goerli
+      _functionType: 1, // Swap remote
+      _toAddress: abi.encodePacked(goerliDiamondAddr),
+      _transferAndCallPayload: destParamsEncoded,
+      _lzTxParams: IStargateRouter.lzTxObj({
+        dstGasForCall: dstGasForCall,
+        dstNativeAmount: 0,
+        dstNativeAddr: ''
+      })
+    });
+
+    console2.log('Native fee: %s', nativeWei);
+
+    {
+      uint256 srcTokenInAllowance = IERC20(Goerli.STARGATE_MOCK_USDC_ADDR).allowance(
+        user,
+        address(Addresses.PERMIT2)
+      );
+
+      console2.log('srcTokenInAllowance: %s', srcTokenInAllowance);
+
+      if (srcTokenInAllowance < srcAmountIn) {
+        vm.startBroadcast(user);
+
+        SafeERC20.forceApprove(
+          IERC20(Goerli.STARGATE_MOCK_USDC_ADDR),
+          address(Addresses.PERMIT2),
+          type(uint256).max
+        );
+
+        vm.stopBroadcast();
+      }
+    }
+
+    PermitParams memory permitParams;
+
+    {
+      (, , uint48 nonce) = Addresses.PERMIT2.allowance(
+        user,
+        Goerli.STARGATE_MOCK_USDC_ADDR,
+        address(goerliDiamondAddr)
+      );
+
+      IAllowanceTransfer.PermitSingle memory permit = IAllowanceTransfer.PermitSingle(
+        IAllowanceTransfer.PermitDetails({
+          token: Goerli.STARGATE_MOCK_USDC_ADDR,
+          amount: uint160(srcAmountIn),
+          expiration: deadline,
+          nonce: nonce
+        }),
+        address(goerliDiamondAddr),
+        deadline
+      );
+
+      bytes memory sig = getPermitSignature(
+        permit,
+        privateKey,
+        Addresses.PERMIT2.DOMAIN_SEPARATOR()
+      );
+
+      permitParams = PermitParams({nonce: nonce, signature: sig});
+    }
+
+    vm.startBroadcast(user);
+
+    IWarpLink(goerliDiamondAddr).warpLinkEngage{value: nativeWei}(
+      IWarpLink.Params({
+        tokenIn: Goerli.STARGATE_MOCK_USDC_ADDR,
+        tokenOut: Goerli.STARGATE_MOCK_USDC_ADDR,
+        commands: sourceCommands,
+        amountIn: srcAmountIn,
+        amountOut: 0, // TODO
+        recipient: address(0), // Unused
+        partner: address(0), // Unused
+        feeBps: 0, // Unused
+        slippageBps: 0,
+        deadline: deadline
+      }),
+      permitParams
+    );
+
+    vm.stopBroadcast();
+  }
+}
diff --git a/packages/hardhat/test/foundry/WarpLink.t.sol b/packages/hardhat/test/foundry/WarpLink.t.sol
index 1db8ff68..ad7fd628 100644
--- a/packages/hardhat/test/foundry/WarpLink.t.sol
+++ b/packages/hardhat/test/foundry/WarpLink.t.sol
@@ -20,22 +20,7 @@ import {IAllowanceTransfer} from 'contracts/interfaces/external/IAllowanceTransf
 import {IPermit2} from 'contracts/interfaces/external/IPermit2.sol';
 import {PermitParams} from 'contracts/libraries/PermitParams.sol';
 import {PermitSignature} from './helpers/PermitSignature.sol';
-
-interface IStargateRouter {
-  struct lzTxObj {
-    uint256 dstGasForCall;
-    uint256 dstNativeAmount;
-    bytes dstNativeAddr;
-  }
-
-  function quoteLayerZeroFee(
-    uint16 _dstChainId,
-    uint8 _functionType,
-    bytes calldata _toAddress,
-    bytes calldata _transferAndCallPayload,
-    lzTxObj memory _lzTxParams
-  ) external view returns (uint256, uint256);
-}
+import {IStargateRouter} from './helpers/IStargateRouter.sol';
 
 contract WarpLinkTestBase is FacetTest, PermitSignature, WarpLinkCommandTypes {
   event CollectedFee(
diff --git a/packages/hardhat/test/foundry/helpers/IStargateRouter.sol b/packages/hardhat/test/foundry/helpers/IStargateRouter.sol
new file mode 100644
index 00000000..63720b16
--- /dev/null
+++ b/packages/hardhat/test/foundry/helpers/IStargateRouter.sol
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.19;
+
+interface IStargateRouter {
+  struct lzTxObj {
+    uint256 dstGasForCall;
+    uint256 dstNativeAmount;
+    bytes dstNativeAddr;
+  }
+
+  function quoteLayerZeroFee(
+    uint16 _dstChainId,
+    uint8 _functionType,
+    bytes calldata _toAddress,
+    bytes calldata _transferAndCallPayload,
+    lzTxObj memory _lzTxParams
+  ) external view returns (uint256, uint256);
+}
diff --git a/packages/hardhat/test/foundry/helpers/Networks.sol b/packages/hardhat/test/foundry/helpers/Networks.sol
index c699c126..8e7d5eb3 100644
--- a/packages/hardhat/test/foundry/helpers/Networks.sol
+++ b/packages/hardhat/test/foundry/helpers/Networks.sol
@@ -1,3 +1,6 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.19;
+
 import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
 import {IPermit2} from '../../../contracts/interfaces/external/IPermit2.sol';
 
@@ -43,6 +46,12 @@ library Optimism {
   address public constant STARGATE_ROUTER_ADDR = 0x53Bf833A5d6c4ddA888F69c22C88C9f356a41614;
 }
 
+library OptimismGoerli {
+  address public constant STARGATE_ROUTER_ADDR = 0x95461eF0e0ecabC049a5c4a6B98Ca7B335FAF068;
+  address public constant STARGATE_MOCK_USDC_ADDR = 0x0CEDBAF2D0bFF895C861c5422544090EEdC653Bf;
+  uint16 public constant STARGATE_CHAIN_ID = 10132;
+}
+
 library Avalanche {
   uint256 public constant CHAIN_ID = 43114;
   address public constant STARGATE_ROUTER_ADDR = 0x45A01E4e04F14f7A4a6702c74187c5F6222033cd;
@@ -51,6 +60,8 @@ library Avalanche {
 library Goerli {
   uint256 public constant CHAIN_ID = 5;
   address public constant STARGATE_ROUTER_ADDR = 0x7612aE2a34E5A363E137De748801FB4c86499152;
+  address public constant STARGATE_MOCK_USDC_ADDR = 0xDf0360Ad8C5ccf25095Aa97ee5F2785c8d848620;
+  uint16 public constant STARGATE_CHAIN_ID = 10121;
 }
 
 library Addresses {