feat: add skill draft workflow

tests/test_install_script.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+import os
+import subprocess
+import tempfile
+import unittest
+from pathlib import Path
+
+
+REPO_ROOT = Path(__file__).resolve().parents[1]
+
+
+class InstallScriptTests(unittest.TestCase):
+    def test_install_bootstraps_skiff_skill_for_all_agents(self) -> None:
+        with tempfile.TemporaryDirectory() as temp:
+            home = Path(temp)
+            (home / ".skills").symlink_to(REPO_ROOT, target_is_directory=True)
+            env = os.environ.copy()
+            env["HOME"] = str(home)
+
+            result = subprocess.run(
+                ["bash", str(REPO_ROOT / "install.sh")],
+                cwd=REPO_ROOT,
+                env=env,
+                text=True,
+                capture_output=True,
+                check=False,
+            )
+
+            self.assertEqual(result.returncode, 0, result.stderr)
+            for relative in (
+                ".cursor/skills/skiff",
+                ".claude/skills/skiff",
+                ".codex/skills/skiff",
+            ):
+                link = home / relative
+                self.assertTrue(link.is_symlink(), relative)
+                self.assertEqual(link.resolve(), (REPO_ROOT / "skills" / "skiff").resolve())
+            self.assertIn("已安装项目 skill", result.stdout)
+
+
+if __name__ == "__main__":
+    unittest.main()