[tool] Exempt AGENTS.md from version and changelog checks

packages/camera/camera_android_camerax/.pubignore

@@ -1,2 +1,3 @@
 .agents/
+AGENTS.md
 evals/

script/tool/CHANGELOG.md

@@ -1,6 +1,7 @@
 ## NEXT
 
 * Adds support for batch release of pre-1.0 packages.
+* Exempts `AGENTS.md` from requiring version and changelog changes.
 
 ## 0.14.4
 

script/tool/lib/src/common/file_filters.dart

@@ -55,5 +55,6 @@ bool isPackageSupportFile(String path) {
   return path.endsWith('/AUTHORS') ||
       path.endsWith('/CHANGELOG.md') ||
       path.endsWith('/CONTRIBUTING.md') ||
-      path.endsWith('/README.md');
+      path.endsWith('/README.md') ||
+      path.endsWith('/AGENTS.md');
 }

script/tool/lib/src/common/package_state_utils.dart

@@ -206,6 +206,8 @@ Future<bool> _isDevChange(
       pathComponents.first == 'run_tests.sh' ||
       // CONTRIBUTING.md is dev-facing.
       pathComponents.last == 'CONTRIBUTING.md' ||
+      // AGENTS.md is dev/agent-facing.
+      pathComponents.last == 'AGENTS.md' ||
       // The top-level "pending_changelogs" directory is the repo convention for storing
       // pending changelog files.
       pathComponents.first == 'pending_changelogs' ||

script/tool/test/common/file_filters_test.dart

@@ -36,4 +36,19 @@ void main() {
       expect(isRepoLevelNonCodeImpactingFile('lib/main.dart'), isFalse);
     });
   });
+
+  group('isPackageSupportFile', () {
+    test('returns true for known package support files', () {
+      expect(isPackageSupportFile('packages/foo/AUTHORS'), isTrue);
+      expect(isPackageSupportFile('packages/foo/CHANGELOG.md'), isTrue);
+      expect(isPackageSupportFile('packages/foo/CONTRIBUTING.md'), isTrue);
+      expect(isPackageSupportFile('packages/foo/README.md'), isTrue);
+      expect(isPackageSupportFile('packages/foo/AGENTS.md'), isTrue);
+    });
+
+    test('returns false for other files', () {
+      expect(isPackageSupportFile('packages/foo/pubspec.yaml'), isFalse);
+      expect(isPackageSupportFile('packages/foo/lib/main.dart'), isFalse);
+    });
+  });
 }

script/tool/test/common/package_state_utils_test.dart

@@ -57,6 +57,7 @@ void main() {
         'packages/a_plugin/CHANGELOG.md',
         // Dev-facing docs.
         'packages/a_plugin/CONTRIBUTING.md',
+        'packages/a_plugin/AGENTS.md',
         // Analysis.
         'packages/a_plugin/example/android/lint-baseline.xml',
         // Tests.
@@ -133,6 +134,22 @@ void main() {
       expect(state.needsChangelogChange, false);
     });
 
+    test('does not require version or changelog change for AGENTS.md changes', () async {
+      final RepositoryPackage package = createFakePlugin('a_plugin', packagesDir);
+
+      const changedFiles = <String>['packages/a_plugin/AGENTS.md'];
+
+      final PackageChangeState state = await checkPackageChangeState(
+        package,
+        changedPaths: changedFiles,
+        relativePackagePath: 'packages/a_plugin/',
+      );
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, false);
+      expect(state.needsChangelogChange, false);
+    });
+
     test('only considers a root "tool" folder to be special', () async {
       final RepositoryPackage package = createFakePlugin('a_plugin', packagesDir);
 

script/tool/test/validate_command_version_test.dart

@@ -982,6 +982,7 @@ packages/plugin/example/ios/RunnerTests/Foo.m
 packages/plugin/example/ios/RunnerUITests/info.plist
 packages/plugin/darwin/Tests/Foo.swift
 packages/plugin/analysis_options.yaml
+packages/plugin/AGENTS.md
 packages/plugin/CHANGELOG.md
 ''',
             ),