diff --git a/tool/generator/pubspec.yaml b/tool/generator/pubspec.yaml
index 0110ed6..1604543 100644
--- a/tool/generator/pubspec.yaml
+++ b/tool/generator/pubspec.yaml
@@ -26,6 +26,6 @@ dev_dependencies:
   build_verify: ^3.1.0
   coverage: ^1.15.0
   lints: ^6.0.0
-  skills_lint: ^0.5.2
+  skills_lint: ^0.5.3
   test: ^1.25.6
 
diff --git a/tool/generator/skills_lint.yaml b/tool/generator/skills_lint.yaml
index 4460222..f17ec76 100644
--- a/tool/generator/skills_lint.yaml
+++ b/tool/generator/skills_lint.yaml
@@ -4,3 +4,7 @@ skills_lint:
     check-absolute-paths: error
   directories:
     - path: "../../skills"
+      rules:
+        check-relative-paths:
+          severity: error
+          within-skill: true
diff --git a/tool/generator/test/lint_skills_test.dart b/tool/generator/test/lint_skills_test.dart
index 6c29d08..8537e81 100644
--- a/tool/generator/test/lint_skills_test.dart
+++ b/tool/generator/test/lint_skills_test.dart
@@ -156,6 +156,11 @@ void main() {
       );
 
       final config = await ConfigParser.loadConfig();
+      expect(
+        config.parsingErrors,
+        isEmpty,
+        reason: 'skills_lint.yaml must not contain parsing errors.',
+      );
       expect(
         config.directoryConfigs,
         isNotEmpty,