diff --git a/bun.lock b/bun.lock
index 2936597..cbaa9c1 100644
--- a/bun.lock
+++ b/bun.lock
@@ -1,6 +1,5 @@
 {
   "lockfileVersion": 1,
-  "configVersion": 0,
   "workspaces": {
     "": {
       "name": "miakapi",
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 6d6f04f..ece0c59 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@miakapp/cli",
-  "version": "4.0.0-alpha.3",
+  "version": "4.0.0-alpha.4",
   "description": "Agent-first Miakapp command line: check, build, publish, activate and roll back home components",
   "type": "module",
   "engines": {
@@ -20,6 +20,7 @@
   "sideEffects": false,
   "scripts": {
     "build": "tsc -p tsconfig.build.json",
+    "prepack": "bun run build",
     "test": "bun test test/",
     "typecheck": "tsc --noEmit",
     "check": "bun run typecheck && bun run build && bun run test"
diff --git a/packages/cli/src/version.ts b/packages/cli/src/version.ts
index f3f814f..41544e8 100644
--- a/packages/cli/src/version.ts
+++ b/packages/cli/src/version.ts
@@ -12,4 +12,4 @@
  */
 export const PACKAGE_NAME = '@miakapp/cli';
 
-export const CLI_VERSION = '4.0.0-alpha.3';
+export const CLI_VERSION = '4.0.0-alpha.4';
diff --git a/packages/cli/test/package.test.ts b/packages/cli/test/package.test.ts
new file mode 100644
index 0000000..9e05137
--- /dev/null
+++ b/packages/cli/test/package.test.ts
@@ -0,0 +1,40 @@
+import { describe, expect, test } from 'bun:test';
+import { resolve } from 'node:path';
+
+const PACKAGE_DIRECTORY = resolve(import.meta.dir, '..');
+const manifest = (await Bun.file(new URL('../package.json', import.meta.url)).json()) as {
+  scripts?: Record<string, string>;
+};
+
+interface PackResult {
+  files: Array<{ path: string }>;
+}
+
+describe('the published package', () => {
+  test('builds the executable payload during prepack', () => {
+    expect(manifest.scripts?.['prepack']).toBe('bun run build');
+
+    const build = Bun.spawnSync(['bun', 'run', 'build'], {
+      cwd: PACKAGE_DIRECTORY,
+      stdout: 'pipe',
+      stderr: 'pipe',
+    });
+    expect(build.exitCode).toBe(0);
+
+    const packed = Bun.spawnSync(
+      ['npm', 'pack', '--dry-run', '--ignore-scripts', '--json'],
+      {
+        cwd: PACKAGE_DIRECTORY,
+        stdout: 'pipe',
+        stderr: 'pipe',
+      },
+    );
+    expect(packed.exitCode).toBe(0);
+
+    const results = JSON.parse(packed.stdout.toString()) as PackResult[];
+    const files = results[0]?.files.map(({ path }) => path).sort() ?? [];
+    expect(files).toContain('assets/agent-guide.md');
+    expect(files).toContain('bin/miakapp.js');
+    expect(files).toContain('dist/main.js');
+  });
+});