diff --git a/gsd-openclaw/tests/test_skill_md.py b/gsd-openclaw/tests/test_skill_md.py
new file mode 100644
index 0000000..bc2bdf4
--- /dev/null
+++ b/gsd-openclaw/tests/test_skill_md.py
@@ -0,0 +1,67 @@
+"""
+Tests for SKILL.md validation.
+Task 1: Test SKILL.md file exists.
+Task 2: Test SKILL.md has valid YAML frontmatter.
+Task 3: Test SKILL.md has name field.
+Task 4: Test SKILL.md has description field.
+Task 5: Test description contains /gsd: pattern for triggering.
+"""
+import pytest
+from pathlib import Path
+import yaml
+
+
+class TestSkillMd:
+    """Tests for SKILL.md structure and trigger patterns."""
+
+    @property
+    def skill_path(self) -> Path:
+        """Get path to SKILL.md."""
+        return Path(__file__).parent.parent / "skill" / "SKILL.md"
+
+    def test_skill_md_exists(self):
+        """SKILL.md file exists at skill/SKILL.md."""
+        assert self.skill_path.exists(), f"SKILL.md not found at {self.skill_path}"
+
+    def test_skill_md_has_valid_frontmatter(self):
+        """SKILL.md has valid YAML frontmatter between --- delimiters."""
+        content = self.skill_path.read_text(encoding="utf-8")
+
+        # Check file starts with ---
+        assert content.startswith("---\n"), "SKILL.md must start with '---' frontmatter delimiter"
+
+        # Find closing delimiter
+        parts = content.split("---\n", 2)
+        assert len(parts) >= 3, "SKILL.md must have opening and closing '---' delimiters"
+
+        # Parse frontmatter as YAML
+        frontmatter_text = parts[1].strip()
+        frontmatter = yaml.safe_load(frontmatter_text)
+        assert isinstance(frontmatter, dict), "Frontmatter must be valid YAML"
+
+    def test_skill_md_has_name_field(self):
+        """SKILL.md frontmatter contains 'name' field."""
+        frontmatter = self._parse_frontmatter()
+        assert "name" in frontmatter, "Frontmatter must contain 'name' field"
+        assert isinstance(frontmatter["name"], str), "'name' must be a string"
+        assert len(frontmatter["name"]) > 0, "'name' must not be empty"
+
+    def test_skill_md_has_description_field(self):
+        """SKILL.md frontmatter contains 'description' field."""
+        frontmatter = self._parse_frontmatter()
+        assert "description" in frontmatter, "Frontmatter must contain 'description' field"
+        assert isinstance(frontmatter["description"], str), "'description' must be a string"
+        assert len(frontmatter["description"]) > 0, "'description' must not be empty"
+
+    def test_skill_md_description_contains_gsd_pattern(self):
+        """SKILL.md description contains /gsd: pattern for trigger matching."""
+        frontmatter = self._parse_frontmatter()
+        description = frontmatter.get("description", "")
+        assert "/gsd:" in description, "Description must contain '/gsd:' pattern for OpenClaw trigger matching"
+
+    def _parse_frontmatter(self) -> dict:
+        """Parse and return frontmatter from SKILL.md."""
+        content = self.skill_path.read_text(encoding="utf-8")
+        parts = content.split("---\n", 2)
+        frontmatter_text = parts[1].strip()
+        return yaml.safe_load(frontmatter_text)