Migrate from dart_skills_lint to skills_lint (#9974)

* Migrate from dart_skills_lint to skills_lint

- Update tool/pubspec.yaml dependency from dart_skills_lint to skills_lint
- Rename tool/dart_skills_lint.yaml to tool/skills_lint.yaml and update root key
- Rename .agents/skills/dart_skills_lint_ignore.json to skills_lint_ignore.json
- Update validate_skills_test.dart imports and config file path
- Update validate_skills_hook.sh to use flutter pub run skills_lint

* Update .agents/scripts/validate_skills_hook.sh

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

---------

Co-authored-by: Reid Baker <1063596+reidbaker@users.noreply.github.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

.agents/scripts/validate_skills_hook.sh

diff --git a/.agents/scripts/validate_skills_hook.sh b/.agents/scripts/validate_skills_hook.sh
index 6456f0f..ce42666 100755
--- a/.agents/scripts/validate_skills_hook.sh
+++ b/.agents/scripts/validate_skills_hook.sh
@@ -13,10 +13,10 @@
 # Check if a skill file was modified
 if [[ "$TARGET_FILE" == *"SKILL.md"* ]] || [[ "$TARGET_FILE" == *".agents/skills"* ]]; then
   echo "Skill edit detected: $TARGET_FILE" >&2
-  echo "Running dart_skills_lint..." >&2
+  echo "Running skills_lint..." >&2
   
   # Run the skills linter from tool/ directory
-  (cd tool && dart run dart_skills_lint:cli)
+  (cd tool && dart run skills_lint)
 fi
 
 # PostToolUse expects an empty JSON object on stdout

.agents/skills/skills_lint_ignore.json

diff --git a/.agents/skills/dart_skills_lint_ignore.json b/.agents/skills/skills_lint_ignore.json
similarity index 100%
rename from .agents/skills/dart_skills_lint_ignore.json
rename to .agents/skills/skills_lint_ignore.json

pubspec.lock

diff --git a/pubspec.lock b/pubspec.lock
index e746a9d..72b7d24 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -209,15 +209,6 @@
       url: "https://pub.dev"
     source: hosted
     version: "0.0.3"
-  dart_skills_lint:
-    dependency: transitive
-    description:
-      path: "tool/dart_skills_lint"
-      ref: "05e5a45fa412ddbdd1d694eee0c71f4bbaea2617"
-      resolved-ref: "05e5a45fa412ddbdd1d694eee0c71f4bbaea2617"
-      url: "https://github.com/flutter/skills"
-    source: git
-    version: "0.4.0"
   dart_style:
     dependency: transitive
     description:
@@ -758,6 +749,15 @@
       url: "https://pub.dev"
     source: hosted
     version: "3.0.0"
+  skills_lint:
+    dependency: transitive
+    description:
+      path: "packages/skills_lint"
+      ref: e6e695e1550f81342fe5acd4dbe65040b5aa44c3
+      resolved-ref: e6e695e1550f81342fe5acd4dbe65040b5aa44c3
+      url: "https://github.com/google/skills_lint.dart.git"
+    source: git
+    version: "0.5.1"
   sky_engine:
     dependency: transitive
     description: flutter

tool/pubspec.yaml

diff --git a/tool/pubspec.yaml b/tool/pubspec.yaml
index 98aed9d..37053ad 100644
--- a/tool/pubspec.yaml
+++ b/tool/pubspec.yaml
@@ -23,11 +23,11 @@
   yaml: ^3.1.2
 
 dev_dependencies:
-  # TODO(https://github.com/flutter/devtools/issues/9771): Update to published version
-  dart_skills_lint:
-    git:
-      url: https://github.com/flutter/skills
-      path: tool/dart_skills_lint
-      ref: 05e5a45fa412ddbdd1d694eee0c71f4bbaea2617
   logging: ^1.1.1
+  # TODO(https://github.com/flutter/devtools/issues/9771): Update to published version
+  skills_lint:
+    git:
+      url: https://github.com/google/skills_lint.dart.git
+      path: packages/skills_lint
+      ref: e6e695e1550f81342fe5acd4dbe65040b5aa44c3
   test: ^1.25.8

tool/skills_lint.yaml

diff --git a/tool/dart_skills_lint.yaml b/tool/skills_lint.yaml
similarity index 95%
rename from tool/dart_skills_lint.yaml
rename to tool/skills_lint.yaml
index 150e390..14fbb78 100644
--- a/tool/dart_skills_lint.yaml
+++ b/tool/skills_lint.yaml
@@ -1,7 +1,7 @@
 # Copyright 2026 The Flutter Authors
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file or at https://developers.google.com/open-source/licenses/bsd.
-dart_skills_lint:
+skills_lint:
   rules:
     check-relative-paths: error
     check-absolute-paths: error

tool/test/validate_skills_test.dart

diff --git a/tool/test/validate_skills_test.dart b/tool/test/validate_skills_test.dart
index 04736e7..6adbabe 100644
--- a/tool/test/validate_skills_test.dart
+++ b/tool/test/validate_skills_test.dart
@@ -3,11 +3,12 @@
 // found in the LICENSE file or at https://developers.google.com/open-source/licenses/bsd.
 
 import 'dart:async';
-import 'package:dart_skills_lint/dart_skills_lint.dart';
+
 import 'package:logging/logging.dart';
+import 'package:skills_lint/skills_lint.dart';
 import 'package:test/test.dart';
 
-const String _configFilePath = 'dart_skills_lint.yaml';
+const String _configFilePath = 'skills_lint.yaml';
 
 void main() {
   test('Validate DevTools Skills', () async {