[{'Text': 'Edited point-topic-mcp/src/point_topic_mcp/tools/gbs_tools.py:\n\n```diff\n@@ -29,6 +29,15 @@\n \n ADMIN_BASE = "https://pt-research-app.vercel.app"\n \n+# Collections available for read_gbs read-only queries\n+_GBS_COLLECTIONS = {\n+    "Operator", "Statistics", "Sources", "GlobalVariables",\n+    "operator", "statistics", "sources", "globalvariables", "globalVariables",\n+}\n+\n+# Stage names that MODIFY data — rejected by read_gbs\n+_GBS_WRITE_STAGES = {"$out", "$merge"}\n+\n if check_env_vars("gbs_tools", ["PT_RESEARCH_DATABASE_URI"]):\n \n     VALID_TYPES = ["broadband", "mobile", "iptv"]\n\n```'}]