diff --git a/.gas-snapshot b/.gas-snapshot
index f309fb6..ab16f3c 100644
--- a/.gas-snapshot
+++ b/.gas-snapshot
@@ -1 +1 @@
-UpgradeArbOSVersionAtTimestampActionTest:test_1() (gas: 165)
\ No newline at end of file
+UpgradeArbOSVersionAtTimestampActionTest:test_1() (gas: 165)
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cb1cf56..2600f09 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -84,3 +84,16 @@ jobs:
         
       - run: yarn minimal-install
       - run: yarn test:storage
+  
+  test-unused-errors:
+    name: Test Unused Errors
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Execute check
+        uses: OffchainLabs/actions/check-unused-errors@main
+        with:
+          directory: './contracts'
+          exceptions_file: './test/unused-errors/exceptions.txt'
diff --git a/audit-ci.jsonc b/audit-ci.jsonc
index 0967ef4..ea00c84 100644
--- a/audit-ci.jsonc
+++ b/audit-ci.jsonc
@@ -1 +1,16 @@
-{}
+{
+  "$schema": "https://github.com/IBM/audit-ci/raw/main/docs/schema.json",
+  "low": true,
+  "allowlist": [
+    // ws affected by a DoS when handling a request with many HTTP headers
+    "GHSA-3h5v-q93c-6h6q",
+    // follow-redirects' Proxy-Authorization header kept across hosts
+    "GHSA-cxjh-pqwp-8mfp",
+    // Undici's Proxy-Authorization header not cleared on cross-origin redirect for dispatch, request, stream, pipeline
+    "GHSA-m4v8-wqvr-p9f7",
+    // Undici's fetch with integrity option is too lax when algorithm is specified but hash value is in incorrect
+    "GHSA-9qxr-qj54-h672",
+    // Uncontrolled resource consumption in braces
+    "GHSA-grv7-fg5c-xmjg"
+  ]
+}
diff --git a/foundry.toml b/foundry.toml
index f5e41c0..f363a94 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -8,3 +8,19 @@ solc_version = '0.8.16'
 optimizer_runs = 2000
 fs_permissions = [{ access = "read", path = "node_modules/@arbitrum/"}, { access = "read", path = "node_modules/@openzeppelin/"},{ access = "read-write", path = "./scripts/foundry"}]
 script = 'scripts'
+
+[fmt]
+line_length = 120
+tab_width = 4
+bracket_spacing = false
+int_types = "long"
+multiline_func_header = "attributes_first"
+quote_style = "double"
+number_underscore = "preserve"
+hex_underscore = "remove"
+single_line_statement_blocks = "preserve"
+override_spacing = false
+wrap_comments = false
+ignore = []
+contract_new_lines = false
+sort_imports = false
diff --git a/hardhat.config.ts b/hardhat.config.ts
index 95abc97..2c60b29 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -3,41 +3,37 @@ import '@nomicfoundation/hardhat-toolbox'
 import '@nomicfoundation/hardhat-foundry'
 import dotenv from 'dotenv'
 dotenv.config()
+import 'hardhat-contract-sizer'
 
-import { SolidityUserConfig } from 'hardhat/types'
+import { SolcUserConfig } from 'hardhat/types'
 import toml from 'toml'
 import fs from 'fs'
 
 const config: HardhatUserConfig = {
-  solidity: getSolidityConfigFromFoundryToml(
-    process.env.FOUNDRY_PROFILE || 'default'
-  ),
+  solidity: {
+    ...getSolidityConfigFromFoundryToml(process.env.FOUNDRY_PROFILE),
+    // overrides here
+    // overrides: {
+    //   'contracts/MyContract.sol': {
+    //     version: '0.8.0',
+    //     settings: {
+    //       optimizer: {
+    //         enabled: false,
+    //       },
+    //     },
+    //   },
+    // },
+  },
   networks: {
     fork: {
       url: process.env.FORK_URL || 'http://localhost:8545',
     },
-    arb1: {
-      url: 'https://arb1.arbitrum.io/rpc',
-    },
-    mainnet: {
-      url: 'https://mainnet.infura.io/v3/' + process.env['INFURA_KEY'],
-    },
-    sepolia: {
-      url: 'https://sepolia.infura.io/v3/' + process.env['INFURA_KEY'],
-    },
-    arbSepolia: {
-      url: 'https://sepolia-rollup.arbitrum.io/rpc',
-    },
-    nova: {
-      url: 'https://nova.arbitrum.io/rpc',
-    },
-    holesky: {
-      url: 'https://1rpc.io/holesky',
-    },
   },
 }
 
-function getSolidityConfigFromFoundryToml(profile: string): SolidityUserConfig {
+function getSolidityConfigFromFoundryToml(
+  profile: string | undefined
+): SolcUserConfig {
   const data = toml.parse(fs.readFileSync('foundry.toml', 'utf-8'))
 
   const defaultConfig = data.profile['default']
diff --git a/package.json b/package.json
index f225d7f..9b5c04a 100644
--- a/package.json
+++ b/package.json
@@ -5,8 +5,8 @@
   "license": "Apache 2.0",
   "scripts": {
     "prepare": "forge install && cd lib/arbitrum-sdk && yarn",
-    "minimal-publish": "./scripts/publish.bash",
     "minimal-install": "yarn --ignore-scripts && forge install",
+    "minimal-publish": "./scripts/template/publish.bash",
     "audit:ci": "audit-ci --config ./audit-ci.jsonc",
     "upload-all-selectors": "forge build && find ./out -name \"*.json\" -exec cast upload-signature {} +",
     "format": "cat .prettierignore .gitignore > .pignore && prettier --ignore-path .pignore \"**/*.{js,ts,json}\" --write && rm .pignore && forge fmt",
@@ -16,7 +16,7 @@
     "test:unit": "./test/unit/test-unit.bash",
     "test:fork": "./test/fork/test-fork.bash",
     "test:e2e": "./test/e2e/test-e2e.bash",
-    "test:sizes": "forge build --sizes",
+    "test:sizes": "STRICT=true yarn hardhat size-contracts",
     "test:gas-check": "forge snapshot --check --tolerance 1 --match-path \"test/unit/**/*.t.sol\"",
     "test:sigs": "./test/signatures/test-sigs.bash",
     "test:storage": "./test/storage/test-storage.bash",
@@ -52,6 +52,7 @@
     "ethers": "^6.4.0",
     "ethers-v5": "npm:ethers@^5.7.2",
     "hardhat": "^2.19.5",
+    "hardhat-contract-sizer": "^2.10.0",
     "hardhat-gas-reporter": "^1.0.8",
     "prettier": "^3.2.5",
     "solidity-coverage": "^0.8.0",
diff --git a/scripts/prepublish.ts b/scripts/template/prepublish.ts
similarity index 96%
rename from scripts/prepublish.ts
rename to scripts/template/prepublish.ts
index 9e66c88..0f61f98 100644
--- a/scripts/prepublish.ts
+++ b/scripts/template/prepublish.ts
@@ -1,5 +1,5 @@
 import * as fs from 'fs'
-import hardhatConfig from '../hardhat.config'
+import hardhatConfig from '../../hardhat.config'
 
 /*
 Generates a minimal package.json and hardhat.config.js for publishing to npm
diff --git a/scripts/print-contracts.bash b/scripts/template/print-contracts.bash
similarity index 100%
rename from scripts/print-contracts.bash
rename to scripts/template/print-contracts.bash
diff --git a/scripts/publish.bash b/scripts/template/publish.bash
similarity index 94%
rename from scripts/publish.bash
rename to scripts/template/publish.bash
index b33a4f5..b684d61 100755
--- a/scripts/publish.bash
+++ b/scripts/template/publish.bash
@@ -8,7 +8,7 @@
 
 # prepublish
 # must run with hardhat to generate hardhat.config.js
-yarn hardhat run scripts/prepublish.ts
+yarn hardhat run scripts/template/prepublish.ts
 
 if [ $? -ne 0 ]; then
     echo "Prepublish failed"
diff --git a/scripts/template/util.ts b/scripts/template/util.ts
new file mode 100644
index 0000000..aa7d882
--- /dev/null
+++ b/scripts/template/util.ts
@@ -0,0 +1,38 @@
+import { JsonRpcProvider, Provider, Wallet } from 'ethers'
+import { ethers as ethersv5 } from 'ethers-v5'
+
+export type Unwrap<T> = T extends Promise<infer U> ? U : T
+
+export function getEnv(name: string): string {
+  const value = process.env[name] || ''
+  if (value === '') {
+    throw new Error(`Environment variable ${name} is not defined`)
+  }
+  return value
+}
+
+export class DoubleProvider extends JsonRpcProvider {
+  public readonly v5: ethersv5.providers.JsonRpcProvider
+  constructor(public readonly url: string) {
+    super(url)
+    this.v5 = new ethersv5.providers.JsonRpcProvider(url)
+  }
+}
+
+export class DoubleWallet extends Wallet {
+  public readonly provider!: Provider
+  public readonly v5: ethersv5.Wallet & {
+    provider: ethersv5.providers.JsonRpcProvider
+  }
+
+  constructor(
+    privateKey: string,
+    public readonly doubleProvider: DoubleProvider
+  ) {
+    super(privateKey, doubleProvider)
+    this.v5 = new ethersv5.Wallet(
+      privateKey,
+      doubleProvider.v5
+    ) as ethersv5.Wallet & { provider: ethersv5.providers.JsonRpcProvider }
+  }
+}
diff --git a/test/e2e/test-e2e.bash b/test/e2e/test-e2e.bash
index 0f0f104..c7187b7 100755
--- a/test/e2e/test-e2e.bash
+++ b/test/e2e/test-e2e.bash
@@ -12,14 +12,12 @@ else
     export ORBIT_TEST=1
 fi
 
-cd lib/arbitrum-sdk && yarn gen:network && cd -
+set -e
 
-# if the above command fails, exit
-if [ $? -ne 0 ]; then
-    echo "Failed to generate network"
-    exit 1
-fi
+cd lib/arbitrum-sdk && yarn gen:network && cd -
 
-yarn hardhat compile 
+yarn build
 
 yarn mocha test/e2e/ --timeout 30000000 --bail
+
+exit $?
diff --git a/test/e2e/testSetup.ts b/test/e2e/testSetup.ts
index a97ef9f..7b81c7b 100644
--- a/test/e2e/testSetup.ts
+++ b/test/e2e/testSetup.ts
@@ -1,24 +1,27 @@
-import { JsonRpcProvider, Wallet } from 'ethers'
 import { testSetup as sdkTestSetup } from '../../lib/arbitrum-sdk/scripts/testSetup'
 import { L1Network, L2Network, getL1Network } from '../../lib/arbitrum-sdk/src'
-import { getEnv } from '../util/util'
+import {
+  DoubleProvider,
+  DoubleWallet,
+  getEnv,
+} from '../../scripts/template/util'
 
 export const isTestingOrbit = process.env.ORBIT_TEST === '1'
 
 type BaseTestSetup = {
   l1Network: L1Network
   l2Network: L2Network
-  l1Signer: Wallet
-  l2Signer: Wallet
-  l1Provider: JsonRpcProvider
-  l2Provider: JsonRpcProvider
+  l1Signer: DoubleWallet
+  l2Signer: DoubleWallet
+  l1Provider: DoubleProvider
+  l2Provider: DoubleProvider
 }
 
 export type OrbitTestSetup = BaseTestSetup & {
   isTestingOrbit: true
   l3Network: L2Network
-  l3Provider: JsonRpcProvider
-  l3Signer: Wallet
+  l3Provider: DoubleProvider
+  l3Signer: DoubleWallet
 }
 
 export type NonOrbitTestSetup = BaseTestSetup & {
@@ -28,16 +31,16 @@ export type NonOrbitTestSetup = BaseTestSetup & {
 export type TestSetup = OrbitTestSetup | NonOrbitTestSetup
 
 export async function testSetup(): Promise<TestSetup> {
-  const l1Provider = new JsonRpcProvider(getEnv('LOCAL_L1_URL'))
-  const l2Provider = new JsonRpcProvider(getEnv('LOCAL_L2_URL'))
-  const l1Signer = new Wallet(getEnv('LOCAL_L1_KEY'), l1Provider)
-  const l2Signer = new Wallet(getEnv('LOCAL_L2_KEY'), l2Provider)
+  const l1Provider = new DoubleProvider(getEnv('LOCAL_L1_URL'))
+  const l2Provider = new DoubleProvider(getEnv('LOCAL_L2_URL'))
+  const l1Signer = new DoubleWallet(getEnv('LOCAL_L1_KEY'), l1Provider)
+  const l2Signer = new DoubleWallet(getEnv('LOCAL_L2_KEY'), l2Provider)
 
   const setup = await sdkTestSetup()
 
   if (isTestingOrbit) {
-    const l3Provider = new JsonRpcProvider(getEnv('LOCAL_L3_URL'))
-    const l3Signer = new Wallet(getEnv('LOCAL_L3_KEY'), l3Provider)
+    const l3Provider = new DoubleProvider(getEnv('LOCAL_L3_URL'))
+    const l3Signer = new DoubleWallet(getEnv('LOCAL_L3_KEY'), l3Provider)
 
     const l1Network = await getL1Network(
       (setup.l1Network as L2Network).partnerChainID
diff --git a/test/fork/test-fork.bash b/test/fork/test-fork.bash
index 52b54c9..3398161 100755
--- a/test/fork/test-fork.bash
+++ b/test/fork/test-fork.bash
@@ -1,48 +1,10 @@
 #!/bin/bash
 
-# run fork tests, tests in fork/<chain_name>/ will be run against <CHAIN_NAME>_FORK_URL
-# if there is a chain dir without a corresponding env var, the script will fail
+# early exit on failure
+set -e
 
-shopt -s globstar
+# run hardhat tests if there are any
+test $(find test/fork -name '*.test.ts' | wc -l) -eq 0 || yarn hardhat test $(find test/fork -name '*.test.ts')
 
-chains=$(ls -d ./test/fork/*/ 2>/dev/null)
-
-if [ -z "$chains" ]; then
-    echo "No directories found in ./test/fork/"
-    exit 0
-fi
-
-for dir in $chains; do
-    dirName=$(basename "$dir")
-    forkUrlName="${dirName^^}_FORK_URL"
-    forkUrl="${!forkUrlName}"
-
-    if [ -z "$forkUrl" ]; then
-        echo "No value found for $forkUrlName"
-        exit 1
-    fi
-
-    code=0
-
-    hardhatFiles=$(find "$dir" -name "*.test.ts")
-    if [ -z "$hardhatFiles" ]; then
-        echo "No .test.ts files found in $dir"
-    else
-        echo "Running hardhat tests against \$$forkUrlName ..."
-        FORK_URL=$forkUrl yarn run hardhat test $hardhatFiles --network fork
-        CODE=$?
-    fi
-    [ "$code" -ne 0 ] && exit $code
-
-    foundryFiles=$(find "$dir" -name "*.t.sol")
-    if [ -z "$foundryFiles" ]; then
-        echo "No .t.sol files found in $dir"
-    else
-        echo "Running foundry tests against \$$forkUrlName ..."
-        forge test --fork-url $forkUrl --match-path "$dir**/*.t.sol"
-        code=$?
-    fi
-    [ "$code" -ne 0 ] && exit $code
-done
-
-exit 0
\ No newline at end of file
+# run foundry tests if there are any
+test $(find test/fork -name '*.t.sol' | wc -l) -eq 0 || forge test --match-path 'test/fork/**/*.t.sol'
\ No newline at end of file
diff --git a/test/mocks/SampleMock.sol b/test/mocks/SampleMock.sol
new file mode 100644
index 0000000..afc6768
--- /dev/null
+++ b/test/mocks/SampleMock.sol
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.16;
+
+contract SampleMock {
+    function arbOSVersion() external pure returns (uint256) {
+        return 1;
+    }
+}
diff --git a/test/unit/test-unit.bash b/test/unit/test-unit.bash
index 03887ba..8e13860 100755
--- a/test/unit/test-unit.bash
+++ b/test/unit/test-unit.bash
@@ -1,21 +1,10 @@
 #!/bin/bash
 
-shopt -s globstar
+# early exit on failure
+set -e
 
-code=0
+# run hardhat tests if there are any
+test $(find test/unit -name '*.test.ts' | wc -l) -eq 0 || yarn hardhat test $(find test/unit -name '*.test.ts')
 
-hardhatFiles=$(ls ./test/unit/**/*.test.ts 2>/dev/null)
-if [ -n "$hardhatFiles" ]; then
-    yarn run hardhat test $hardhatFiles
-    code=$?
-fi
-
-[ "$code" -ne 0 ] && exit $code
-
-foundryFiles=$(ls ./test/unit/**/*.t.sol 2>/dev/null)
-if [ -n "$foundryFiles" ]; then
-    forge test --match-path "test/unit/*.t.sol"
-    code=$?
-fi
-
-exit $code
+# run foundry tests if there are any
+test $(find test/unit -name '*.t.sol' | wc -l) -eq 0 || forge test --match-path 'test/unit/**/*.t.sol'
\ No newline at end of file
diff --git a/test/unused-errors/exceptions.txt b/test/unused-errors/exceptions.txt
new file mode 100644
index 0000000..e69de29
diff --git a/test/util/forge-inspect.bash b/test/util/forge-inspect.bash
index a4640ea..0237e19 100755
--- a/test/util/forge-inspect.bash
+++ b/test/util/forge-inspect.bash
@@ -2,7 +2,7 @@
 
 # usage: ./test/util/forge-inspect.bash <outputDir> <inspectType>
 
-contracts=$(./scripts/print-contracts.bash)
+contracts=$(./scripts/template/print-contracts.bash)
 if [[ $? != "0" ]]; then
     echo "Failed to get contracts"
     exit 1
diff --git a/test/util/util.ts b/test/util/util.ts
deleted file mode 100644
index a7898fc..0000000
--- a/test/util/util.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-export type Unwrap<T> = T extends Promise<infer U> ? U : T
-
-export function getEnv(name: string): string {
-  const value = process.env[name] || ''
-  if (value === '') {
-    throw new Error(`Environment variable ${name} is not defined`)
-  }
-  return value
-}
diff --git a/yarn.lock b/yarn.lock
index 61489f8..7e20384 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -101,6 +101,11 @@
     "@chainsafe/persistent-merkle-tree" "^0.4.2"
     case "^1.6.3"
 
+"@colors/colors@1.5.0":
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/@colors/colors/-/colors-1.5.0.tgz#bb504579c1cae923e6576a4f5da43d25f97bdbd9"
+  integrity sha512-ooWCrlZP11i8GImSjTHYHLkvFDP48nS4+204nGb1RiX/WXYHmJA2III9/e2DWVabCESdW7hBAEzHRqUn9OUVvQ==
+
 "@cspotcode/source-map-support@^0.8.0":
   version "0.8.1"
   resolved "https://registry.yarnpkg.com/@cspotcode/source-map-support/-/source-map-support-0.8.1.tgz#00629c35a688e05a88b1cda684fb9d5e73f000a1"
@@ -1976,6 +1981,15 @@ cli-table3@^0.5.0:
   optionalDependencies:
     colors "^1.1.2"
 
+cli-table3@^0.6.0:
+  version "0.6.5"
+  resolved "https://registry.yarnpkg.com/cli-table3/-/cli-table3-0.6.5.tgz#013b91351762739c16a9567c21a04632e449bf2f"
+  integrity sha512-+W/5efTR7y5HRD7gACw9yQjqMVvEMLBHmboM/kPWam+H+Hmyrgjh6YncVKK122YZkXrLudzTuAukUw9FnMf7IQ==
+  dependencies:
+    string-width "^4.2.0"
+  optionalDependencies:
+    "@colors/colors" "1.5.0"
+
 cliui@^7.0.2:
   version "7.0.4"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-7.0.4.tgz#a0265ee655476fc807aea9df3df8df7783808b4f"
@@ -3171,6 +3185,15 @@ handlebars@^4.0.1:
   optionalDependencies:
     uglify-js "^3.1.4"
 
+hardhat-contract-sizer@^2.10.0:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/hardhat-contract-sizer/-/hardhat-contract-sizer-2.10.0.tgz#72646f43bfe50e9a5702c9720c9bc3e77d93a2c9"
+  integrity sha512-QiinUgBD5MqJZJh1hl1jc9dNnpJg7eE/w4/4GEnrcmZJJTDbVFNe3+/3Ep24XqISSkYxRz36czcPHKHd/a0dwA==
+  dependencies:
+    chalk "^4.0.0"
+    cli-table3 "^0.6.0"
+    strip-ansi "^6.0.0"
+
 hardhat-gas-reporter@^1.0.8:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/hardhat-gas-reporter/-/hardhat-gas-reporter-1.0.10.tgz#ebe5bda5334b5def312747580cd923c2b09aef1b"