diff --git a/.gitignore b/.gitignore
index 77210148..57b1943b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,9 @@ npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
 
+# Test lock files
+test/packages/**/package-lock.json
+
 # Build outputs
 dist/
 build/
diff --git a/package.json b/package.json
index 6c6b4742..1cc665c0 100644
--- a/package.json
+++ b/package.json
@@ -11,28 +11,28 @@
   ],
   "exports": {
     ".": {
-      "import": "./dist/src/index.js",
-      "types": "./dist/src/index.d.ts"
+      "types": "./dist/src/index.d.ts",
+      "default": "./dist/src/index.js"
     },
     "./openai": {
-      "import": "./dist/src/models/openai.js",
-      "types": "./dist/src/models/openai.d.ts"
+      "types": "./dist/src/models/openai.d.ts",
+      "default": "./dist/src/models/openai.js"
     },
     "./bedrock": {
-      "import": "./dist/src/models/bedrock.js",
-      "types": "./dist/src/models/bedrock.d.ts"
+      "types": "./dist/src/models/bedrock.d.ts",
+      "default": "./dist/src/models/bedrock.js"
     },
     "./vended_tools/notebook": {
-      "import": "./dist/vended_tools/notebook/index.js",
-      "types": "./dist/vended_tools/notebook/index.d.ts"
+      "types": "./dist/vended_tools/notebook/index.d.ts",
+      "default": "./dist/vended_tools/notebook/index.js"
     },
     "./vended_tools/file_editor": {
-      "import": "./dist/vended_tools/file_editor/index.js",
-      "types": "./dist/vended_tools/file_editor/index.d.ts"
+      "types": "./dist/vended_tools/file_editor/index.d.ts",
+      "default": "./dist/vended_tools/file_editor/index.js"
     },
     "./vended_tools/http_request": {
-      "import": "./dist/vended_tools/http_request/index.js",
-      "types": "./dist/vended_tools/http_request/index.d.ts"
+      "types": "./dist/vended_tools/http_request/index.d.ts",
+      "default": "./dist/vended_tools/http_request/index.js"
     }
   },
   "scripts": {
@@ -50,7 +50,7 @@
     "test:browser:install": "npx playwright install --with-deps chromium",
     "test:all": "vitest run --project unit-node --project unit-browser",
     "test:all:coverage": "vitest run --coverage --project unit-node --project unit-browser",
-    "test:package": "npm run build && cd test-package && npm install && node verify.js",
+    "test:package": "cd test/packages/esm-module && npm install && node esm.js && cd ../cjs-module && npm install && node cjs.js",
     "lint": "eslint src tests_integ vended_tools",
     "lint:fix": "eslint src tests_integ vended_tools --fix",
     "format": "prettier --write src tests_integ vended_tools",
diff --git a/test/packages/README.md b/test/packages/README.md
new file mode 100644
index 00000000..5dd6723b
--- /dev/null
+++ b/test/packages/README.md
@@ -0,0 +1,26 @@
+# Package Import Tests
+
+This directory contains verification tests to ensure `@strands-agents/sdk` can be imported correctly in both ESM and CommonJS module formats.
+
+## Running the Tests
+
+From the root of the project:
+
+```bash
+npm run test:package
+```
+
+This command builds and installs the SDK locally, then runs both ESM and CJS import tests.
+
+## Test Structure
+
+```
+test/packages/
+├── esm-module/     # ES Module import test
+│   ├── esm.js      # Uses `import { ... } from '@strands-agents/sdk'`
+│   └── package.json
+├── cjs-module/     # CommonJS import test
+│   ├── cjs.js      # Uses `require('@strands-agents/sdk')`
+│   └── package.json
+└── README.md
+```
diff --git a/test/packages/cjs-module/cjs.js b/test/packages/cjs-module/cjs.js
new file mode 100644
index 00000000..4e1443cb
--- /dev/null
+++ b/test/packages/cjs-module/cjs.js
@@ -0,0 +1,62 @@
+/**
+ * Verification script to ensure the built package can be imported without a bundler.
+ * This script runs in a pure Node.js ES module environment.
+ */
+
+const { Agent, BedrockModel, tool } = require('@strands-agents/sdk')
+const { z } = require('zod')
+
+console.log('✓ Import from main entry point successful')
+
+// Verify BedrockModel can be instantiated
+const model = new BedrockModel({ region: 'us-west-2' })
+console.log('✓ BedrockModel instantiation successful')
+
+// Verify basic functionality
+const config = model.getConfig()
+if (!config) {
+  throw new Error('BedrockModel config is invalid')
+}
+console.log('✓ BedrockModel configuration retrieval successful')
+
+// Define a tool
+const example_tool = tool({
+  name: 'get_weather',
+  description: 'Get the current weather for a specific location.',
+  inputSchema: z.object({
+    location: z.string().describe('The city and state, e.g., San Francisco, CA'),
+  }),
+  callback: (input) => {
+    console.log(`\n[WeatherTool] Getting weather for ${input.location}...`)
+
+    const fakeWeatherData = {
+      temperature: '72°F',
+      conditions: 'sunny',
+    }
+
+    return `The weather in ${input.location} is ${fakeWeatherData.temperature} and ${fakeWeatherData.conditions}.`
+  },
+})
+console.log('✓ Tool created successful')
+
+async function main() {
+  // Verify tool can be called
+  const response = await example_tool.invoke({ location: 'New York' })
+  if (response !== `The weather in New York is 72°F and sunny.`) {
+    throw new Error('Tool returned invalid response')
+  }
+
+  // Verify Agent can be instantiated
+  const agent = new Agent({
+    tools: [example_tool],
+  })
+
+  if (agent.tools.length == 0) {
+    throw new Error('Tool was not correctly added to the agent')
+  }
+}
+
+main().catch((error) => {
+  console.error(error)
+  process.exit(1)
+})
diff --git a/test/packages/cjs-module/package.json b/test/packages/cjs-module/package.json
new file mode 100644
index 00000000..e2559ecd
--- /dev/null
+++ b/test/packages/cjs-module/package.json
@@ -0,0 +1,10 @@
+{
+  "type": "commonjs",
+  "name": "test-package",
+  "version": "1.0.0",
+  "private": true,
+  "description": "Test package to verify SDK works with CSJ",
+  "dependencies": {
+    "@strands-agents/sdk": "file:../../.."
+  }
+}
\ No newline at end of file
diff --git a/test-package/verify.js b/test/packages/esm-module/esm.js
similarity index 100%
rename from test-package/verify.js
rename to test/packages/esm-module/esm.js
diff --git a/test-package/package.json b/test/packages/esm-module/package.json
similarity index 80%
rename from test-package/package.json
rename to test/packages/esm-module/package.json
index 09ecb4c4..467522fc 100644
--- a/test-package/package.json
+++ b/test/packages/esm-module/package.json
@@ -5,6 +5,6 @@
   "private": true,
   "description": "Test package to verify SDK works without bundler",
   "dependencies": {
-    "@strands-agents/sdk": "file:.."
+    "@strands-agents/sdk": "file:../../.."
   }
-}
+}
\ No newline at end of file