diff --git a/.changeset/good-paws-build.md b/.changeset/good-paws-build.md
new file mode 100644
index 0000000..a845151
--- /dev/null
+++ b/.changeset/good-paws-build.md
@@ -0,0 +1,2 @@
+---
+---
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c3ee9b5..0fde13d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,4 +46,7 @@ jobs:
         run: pnpm test:coverage
 
       - name: Build
-        run: pnpm build
\ No newline at end of file
+        run: pnpm build
+
+      - name: Test build exports
+        run: pnpm test:build
\ No newline at end of file
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 42f71fb..6dc1eb4 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -65,6 +65,9 @@ jobs:
       - name: Build
         run: pnpm build
 
+      - name: Test build exports
+        run: pnpm test:build
+
       - name: Apply changesets
         id: version
         run: |
diff --git a/package.json b/package.json
index e0363d6..acf1db5 100644
--- a/package.json
+++ b/package.json
@@ -65,6 +65,7 @@
     "prepare": "simple-git-hooks",
     "release": "pnpm publish --access public --provenance --no-git-checks",
     "test": "rstest run",
+    "test:build": "rstest run --config rstest.build.config.ts",
     "test:coverage": "rstest run --coverage",
     "test:related": "rstest run --passWithNoTests",
     "test:watch": "rstest watch"
diff --git a/rstest.build.config.ts b/rstest.build.config.ts
new file mode 100644
index 0000000..8477a26
--- /dev/null
+++ b/rstest.build.config.ts
@@ -0,0 +1,9 @@
+import { withRslibConfig } from '@rstest/adapter-rslib';
+import { defineConfig } from '@rstest/core';
+
+export default defineConfig({
+  extends: withRslibConfig(),
+  globals: true,
+  testEnvironment: 'node',
+  include: ['test/**/*.test.ts'],
+});
diff --git a/rstest.config.ts b/rstest.config.ts
index a182e5f..ecfd367 100644
--- a/rstest.config.ts
+++ b/rstest.config.ts
@@ -5,6 +5,7 @@ export default defineConfig({
   extends: withRslibConfig(),
   globals: true,
   testEnvironment: 'happy-dom',
+  include: ['src/**/*.test.ts'],
   coverage: {
     provider: 'istanbul',
     thresholds: {
diff --git a/test/build.test.ts b/test/build.test.ts
new file mode 100644
index 0000000..5214670
--- /dev/null
+++ b/test/build.test.ts
@@ -0,0 +1,43 @@
+/**
+ * Smoke tests that run against the compiled dist/ output.
+ * Verifies every public module is importable and all expected exports are present.
+ * Run after `pnpm build` via `pnpm test:build`.
+ */
+
+describe('@rstackio/services/safe', () => {
+  it('exports safe()', async () => {
+    const mod = await import('../dist/safe/index.js');
+    expect(mod.safe).toBeTypeOf('function');
+  });
+});
+
+describe('@rstackio/services/data-provider', () => {
+  it('exports createSafeProvider() and createProvider()', async () => {
+    const mod = await import('../dist/data-provider/index.js');
+    expect(mod.createSafeProvider).toBeTypeOf('function');
+    expect(mod.createProvider).toBeTypeOf('function');
+  });
+});
+
+describe('@rstackio/services/mock', () => {
+  it('exports mock utilities', async () => {
+    const mod = await import('../dist/mock/index.js');
+    expect(mod.isMockEnabled).toBeTypeOf('function');
+    expect(mod.enableMock).toBeTypeOf('function');
+    expect(mod.disableMock).toBeTypeOf('function');
+    expect(mod.delay).toBeTypeOf('function');
+  });
+});
+
+describe('@rstackio/services/logger', () => {
+  it('exports Logger class', async () => {
+    const mod = await import('../dist/logger/index.js');
+    expect(mod.Logger).toBeTypeOf('function');
+  });
+});
+
+describe('@rstackio/services/errors', () => {
+  it('is importable (type-only module)', async () => {
+    await expect(import('../dist/errors/index.js')).resolves.toBeDefined();
+  });
+});
diff --git a/test/tsconfig.json b/test/tsconfig.json
new file mode 100644
index 0000000..379a994
--- /dev/null
+++ b/test/tsconfig.json
@@ -0,0 +1,4 @@
+{
+  "extends": "../tsconfig.json",
+  "include": ["."]
+}