Prepare State Hub retirement baseline

tests/test_codex_mcp_server.py

@@ -0,0 +1,19 @@
+import asyncio
+
+from mcp_server import codex_server
+
+
+def test_codex_server_has_only_repository_coordination_tools() -> None:
+    tools = asyncio.run(codex_server.mcp.list_tools())
+    assert {tool.name for tool in tools} == {
+        "get_domain_summary",
+        "get_messages",
+        "mark_message_read",
+        "add_progress_event",
+        "record_decision",
+        "update_task_status",
+    }
+
+
+def test_codex_server_uses_distinct_server_identity() -> None:
+    assert codex_server.mcp.name == "dev-hub-codex"