feat: satisfy Issue #129 operator guide and skill registry requirements

tests/test_operator_guide.py

@@ -141,6 +141,20 @@ class TestControlPlaneGuide(GuideTestBase):
             with self.assertRaises(ValueError):
                 mcp_get_control_plane_guide(remote="nope")
 
+    @patch("mcp_server.api_request", return_value={"login": "new-session-bot"})
+    @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
+    def test_new_session_can_call_guide_for_operating_model(self, _auth, _api):
+        """Covers #129 AC: New LLM sessions can call one guide tool to understand the MCP Control Plane operating model."""
+        with patch.dict(os.environ, AUTHOR_ENV, clear=True):
+            g = mcp_get_control_plane_guide(remote="prgs")
+        self.assertTrue(g["read_only"])
+        self.assertIn("profile", g)
+        self.assertIn("identity", g)
+        self.assertIn("guidance", g)
+        self.assertIn("rules", g)
+        self.assertIn("workflows", g)
+        self.assertEqual(g["skills_tool"], "mcp_list_project_skills")
+
 
 # ---------------------------------------------------------------------------
 # mcp_list_project_skills