fix(skills): quote skill-creator template description (#93517)

Co-authored-by: openclaw-clownfish[bot] <280122609+openclaw-clownfish[bot]@users.noreply.github.com>
Co-authored-by: parubets <1392109+parubets@users.noreply.github.com>

skills/skill-creator/scripts/init_skill.py

@@ -22,7 +22,7 @@ ALLOWED_RESOURCES = {"scripts", "references", "assets"}
 
 SKILL_TEMPLATE = """---
 name: {skill_name}
-description: [TODO: Complete and informative explanation of what the skill does and when to use it. Include WHEN to use this skill - specific scenarios, file types, or tasks that trigger it.]
+description: '[TODO: Complete and informative explanation of what the skill does and when to use it. Include WHEN to use this skill - specific scenarios, file types, or tasks that trigger it.]'
 ---
 
 # {skill_title}

skills/skill-creator/scripts/test_init_skill.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""
+Regression tests for skill initialization.
+"""
+
+import shutil
+import sys
+import tempfile
+from contextlib import redirect_stdout
+from io import StringIO
+from pathlib import Path
+from unittest import TestCase, main
+
+SCRIPT_DIR = Path(__file__).resolve().parent
+if str(SCRIPT_DIR) not in sys.path:
+    sys.path.insert(0, str(SCRIPT_DIR))
+
+import init_skill
+
+
+class TestInitSkill(TestCase):
+    def setUp(self):
+        self.temp_dir = Path(tempfile.mkdtemp(prefix="test_init_skill_"))
+
+    def tearDown(self):
+        if self.temp_dir.exists():
+            shutil.rmtree(self.temp_dir)
+
+    def test_generated_description_placeholder_is_yaml_string(self):
+        with redirect_stdout(StringIO()):
+            skill_dir = init_skill.init_skill("yaml-description-skill", self.temp_dir, [], False)
+
+        self.assertIsNotNone(skill_dir)
+        content = (skill_dir / "SKILL.md").read_text(encoding="utf-8")
+        frontmatter = content.split("---", 2)[1]
+
+        self.assertIn("description: '[TODO:", frontmatter)
+
+        try:
+            import yaml
+        except ImportError:
+            self.skipTest("PyYAML is not installed")
+
+        parsed = yaml.safe_load(frontmatter)
+
+        self.assertIsInstance(parsed["description"], str)
+        self.assertTrue(parsed["description"].startswith("[TODO: Complete"))
+
+
+if __name__ == "__main__":
+    main()