diff --git a/.github/workflows/node-test.yml b/.github/workflows/node-test.yml
index 3510c1a..7dd40d3 100644
--- a/.github/workflows/node-test.yml
+++ b/.github/workflows/node-test.yml
@@ -23,7 +23,7 @@ jobs:
         with:
           go-version: "^1.18.0"
       - run: go install github.com/google/addlicense@latest
-      - run: env bash -c 'addlicense --check -c "Google LLC" -l MIT src/**/* bin/* examples/**/*'
+      - run: addlicense -check -c "Google LLC" -l MIT src examples
 
   test:
     name: Run Tests
diff --git a/package.json b/package.json
index 43404c7..7eb05fb 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,9 @@
     "test-integration": "mocha \"test/integration/**\"",
     "lint": "eslint",
     "coverage": "nyc mocha \"test/unit/**\" \"test/integration/**\"",
-    "watch": "mocha -w \"test/unit/**\" \"test/integration/**\""
+    "watch": "mocha -w \"test/unit/**\" \"test/integration/**\"",
+    "license:check": "addlicense -check -c \"Google LLC\" -l MIT src examples",
+    "license:add": "addlicense -c \"Google LLC\" -l MIT src examples"
   },
   "author": "Firebase (https://www.firebase.com/)",
   "license": "MIT",
diff --git a/src/config.ts b/src/config.ts
index b2de9a9..ddd2921 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,3 +1,25 @@
+/**
+ * Copyright (c) 2026 Google LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
 export interface Configuration {
   // Defaults to the current working directory.
   public?: string;
diff --git a/src/options.ts b/src/options.ts
index 61f265b..8338314 100644
--- a/src/options.ts
+++ b/src/options.ts
@@ -1,3 +1,25 @@
+/**
+ * Copyright (c) 2026 Google LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
 import { HandleFunction } from "connect";
 import { Configuration } from "./config";