diff --git a/sims/arbcore-omnibus-aug-2025.sim.ts b/sims/arbcore-omnibus-aug-2025.sim.ts
new file mode 100644
index 00000000000..0c6e07fb895
--- /dev/null
+++ b/sims/arbcore-omnibus-aug-2025.sim.ts
@@ -0,0 +1,41 @@
+/**
+ * @notice Simulation configuration file for AIP 7
+ */
+import { ethers } from 'ethers'
+import { SimulationConfigNew } from '../types'
+
+const ARBSYS = '0x0000000000000000000000000000000000000064'
+
+
+// from https://github.com/ArbitrumFoundation/governance/blob/47582832ceb69ae02e666ee645f092ff6318c314/scripts/proposals/OmnibusAug25/data.json
+const aip4 = {
+  arbSysSendTxToL1Args: {
+    l1Timelock: '0xE6841D92B0C345144506576eC13ECf5103aC7f49',
+    calldata:
+      '0x8f2a0bb000000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000002400000000000000000000000000000000000000000000000000000000000000000c5ff9861695a76cf2a5e13e763525e6354e6ad949c4704d32dc4950bb63b6938000000000000000000000000000000000000000000000000000000000003f48000000000000000000000000000000000000000000000000000000000000000050000000000000000000000003fffbadaf827559da092217e474760e2b2c3cedd000000000000000000000000a723c008e76e379c55599d2e4d93879beafda79c000000000000000000000000a723c008e76e379c55599d2e4d93879beafda79c0000000000000000000000003fffbadaf827559da092217e474760e2b2c3cedd000000000000000000000000a723c008e76e379c55599d2e4d93879beafda79c00000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001c6bf526340000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000500000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000001c000000000000000000000000000000000000000000000000000000000000003c000000000000000000000000000000000000000000000000000000000000005c0000000000000000000000000000000000000000000000000000000000000074000000000000000000000000000000000000000000000000000000000000000e41cff79cd000000000000000000000000e03e930d661a729595ecc77f9e692a32beed426000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000064e17f52e90000000000000000000000005613af0474eb9c528a34701a5b1662e3c8fa06780000000000000000000000003fffbadaf827559da092217e474760e2b2c3cedd0000000000000000000000003d745b8815f9be5bf053858165f8ab1f58c77932000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001e00000000000000000000000004dbd4fc535ac27206064b68ffcf827b0a60bab3f000000000000000000000000cf57572261c7c2bcf21ffd220ea7d1a27d40a82700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000e41cff79cd000000000000000000000000e03e930d661a729595ecc77f9e692a32beed426000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000064e17f52e9000000000000000000000000db216562328215e010f819b5abe947bad4ca961e000000000000000000000000cf57572261c7c2bcf21ffd220ea7d1a27d40a8270000000000000000000000003d745b8815f9be5bf053858165f8ab1f58c77932000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001e0000000000000000000000000c4448b71118c9071bcb9734a0eac55d18a15394900000000000000000000000086a02dd71363c440b21f4c0e5b2ad01ffe1a748200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000e41cff79cd000000000000000000000000e03e930d661a729595ecc77f9e692a32beed426000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000064e17f52e9000000000000000000000000f58ea15b20983116c21b05c876cc8e6cdae5c2b900000000000000000000000086a02dd71363c440b21f4c0e5b2ad01ffe1a74820000000000000000000000003d745b8815f9be5bf053858165f8ab1f58c77932000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001441cff79cd0000000000000000000000008d3425f7039645223517f6f6e60ef04c28f4188f000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000c4a49870870000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001c6bf526340000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001a0000000000000000000000000c4448b71118c9071bcb9734a0eac55d18a15394900000000000000000000000086a02dd71363c440b21f4c0e5b2ad01ffe1a748200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000a4bca8c7b500000000000000000000000000000000000000000000000000000000000000700000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000002456191cc300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
+  },
+}
+const iface = new ethers.utils.Interface(['function sendTxToL1(address,bytes)'])
+const calldata = iface.encodeFunctionData('sendTxToL1', [
+  aip4.arbSysSendTxToL1Args.l1Timelock,
+  aip4.arbSysSendTxToL1Args.calldata,
+])
+
+const call1 = {
+  target: ARBSYS,
+  calldata: calldata,
+  value: 0,
+  signature: '',
+}
+
+export const config: SimulationConfigNew = {
+  type: 'new',
+  daoName: 'ArbCore',
+  governorType: 'arb',
+  governorAddress: '0xf07ded9dc292157749b6fd268e37df6ea38395b9',
+  targets: [call1.target], // Array of targets to call.
+  values: [call1.value], // Array of values with each call.
+  signatures: [call1.signature], // Array of function signatures. Leave empty if generating calldata with ethers like we do here.
+  calldatas: [call1.calldata], // Array of encoded calldatas.
+  description: 'Omnibus Aug 2025 Sim',
+}