diff --git a/.cspell.json b/.cspell.json
index 1c88ffd414..c1aee5b1fe 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -15,6 +15,7 @@
     "approveformyorg",
     "askar",
     "Askar",
+    "attw",
     "Authz",
     "authzn",
     "AWSSM",
diff --git a/.github/workflows/are-the-types-wrong.yaml b/.github/workflows/are-the-types-wrong.yaml
new file mode 100644
index 0000000000..852cb696fd
--- /dev/null
+++ b/.github/workflows/are-the-types-wrong.yaml
@@ -0,0 +1,34 @@
+name: are-the-types-wrong-scan
+
+env:
+  NODEJS_VERSION: v18.18.2
+
+on: 
+  push:
+    # Publish `main` as Docker `latest` image.
+    branches:
+      - main
+
+    # Publish `v1.2.3` tags as releases.
+    tags:
+      - v*
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  scanning:
+    name: AreTheTypesWrong scan
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Set up NodeJS ${{ env.NODEJS_VERSION }}
+        uses: actions/setup-node@v4.0.3
+        with:
+          node-version: ${{ env.NODEJS_VERSION }}
+      - uses: actions/checkout@v4.1.7
+      - name: Installing AreTheTypesWrong Library
+        run: npm i -g @arethetypeswrong/cli
+      - run: npm run configure
+      - run: yarn lerna exec 'npm pack'
+      - name: Running AreTheTypesWrong scan
+        run: yarn run are-the-types-wrong
diff --git a/package.json b/package.json
index 149e9279b8..bdd9fe3cc2 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,7 @@
     "format:prettier": "prettier --write --config .prettierrc.js \"./**/{openapi.json,*.ts,*.js}\"",
     "spellcheck": "cspell lint --no-progress \"*/*/src/**/*.{js,ts}\"",
     "tsc": "NODE_OPTIONS=\"--max_old_space_size=3072\" tsc --build --verbose",
+    "are-the-types-wrong": "TS_NODE_PROJECT=./tools/tsconfig.json node --trace-deprecation --experimental-modules --abort-on-uncaught-exception --loader ts-node/esm --experimental-specifier-resolution=node ./tools/custom-checks/run-attw-on-tgz.ts",
     "codegen": "run-s 'codegen:warmup-*' codegen:lerna codegen:cleanup",
     "codegen:cleanup": "rm --force --verbose ./openapitools.json",
     "codegen:lerna": "lerna run codegen",
diff --git a/tools/custom-checks/get-all-tgz-path.ts b/tools/custom-checks/get-all-tgz-path.ts
new file mode 100644
index 0000000000..8f6a6297fd
--- /dev/null
+++ b/tools/custom-checks/get-all-tgz-path.ts
@@ -0,0 +1,49 @@
+import path from "path";
+import { fileURLToPath } from "url";
+import { globby, Options as GlobbyOptions } from "globby";
+import lernaCfg from "../../lerna.json" assert { type: "json" };
+
+/**
+ * Interface for the response of the getAllTgzPath function.
+ * @property {Array<string>} relativePaths - An array of relative paths to the
+ * package directories.
+ */
+
+export interface IGetAllTgzPathResponse {
+  readonly relativePaths: Readonly<Array<string>>;
+}
+
+/**
+ * Asynchronous function to get all tgz filepaths in a Lerna monorepo.
+ * @returns {Promise<IGetAllTgzPathResponse>} A promise that resolves to an
+ * object containing the arrays of relative paths to the all tgz files.
+ */
+
+export async function getAllTgzPath(): Promise<IGetAllTgzPathResponse> {
+  const TAG = "[tools/get-all-tgz-path.ts]";
+  const __filename = fileURLToPath(import.meta.url);
+  const __dirname = path.dirname(__filename);
+  const SCRIPT_DIR = __dirname;
+  const PROJECT_DIR = path.join(SCRIPT_DIR, "../../");
+
+  console.log(`${TAG} SCRIPT_DIR=${SCRIPT_DIR}`);
+  console.log(`${TAG} PROJECT_DIR=${PROJECT_DIR}`);
+
+  const globbyOpts: GlobbyOptions = {
+    cwd: PROJECT_DIR,
+    onlyFiles: true,
+    expandDirectories: false,
+    ignore: ["**/node_modules"],
+  };
+
+  const tgzFilesPattern = lernaCfg.packages.map(
+    (pkg: string) => `${pkg}/**/hyperledger-*.tgz`,
+  );
+
+  const tgzFilesRelative = await globby(tgzFilesPattern, globbyOpts);
+  console.log("%s found %s tgz files.", TAG, tgzFilesRelative.length);
+
+  return {
+    relativePaths: tgzFilesRelative,
+  };
+}
diff --git a/tools/custom-checks/run-attw-on-tgz.ts b/tools/custom-checks/run-attw-on-tgz.ts
new file mode 100644
index 0000000000..17a14f1b1f
--- /dev/null
+++ b/tools/custom-checks/run-attw-on-tgz.ts
@@ -0,0 +1,46 @@
+import esMain from "es-main";
+import { getAllTgzPath } from "./get-all-tgz-path";
+import { exec } from "child_process";
+import { exit } from "process";
+import { promisify } from "node:util";
+
+const execPromise = promisify(exec);
+
+export async function runAttwOnTgz(): Promise<string[]> {
+  const TAG = "[tools/custom-checks/run-attw-on-tgz.ts]";
+  console.log(`${TAG} Fetching .tgz file paths.`);
+
+  const { relativePaths: tgzFilesRelative } = await getAllTgzPath();
+  console.log(`${TAG} Found ${tgzFilesRelative.length} .tgz files.`);
+
+  let attwFailedPackages: string[] = [];
+
+  for (const filePath of tgzFilesRelative) {
+    try {
+      await execCommand("attw", filePath);
+    } catch {
+      attwFailedPackages.push(filePath);
+    }
+  }
+
+  return attwFailedPackages;
+}
+
+async function execCommand(
+  binaryName: string,
+  filePath: string,
+): Promise<void> {
+  const command = `${binaryName} ./${filePath}`;
+  const { stdout } = await execPromise(command);
+  console.log(stdout);
+}
+
+if (esMain(import.meta)) {
+  const attwFailedPackages = await runAttwOnTgz();
+  if (attwFailedPackages.length > 0) {
+    console.log("Types are wrong for these packages:");
+    console.log(attwFailedPackages);
+    exit(1);
+  }
+  exit(0);
+}