docs: harden chain-of-thought leakage audits

scripts/smoke-python-runtime.py

@@ -180,9 +180,9 @@ for line in sys.stdin:
             },
         })
     elif method == "tools/list":
-        # Keep discovery pending beyond 100 ms. An SDK runtime that answers
-        # initialize too early will make
-        # its first model request without this tool and fail deterministically.
+        # Keep discovery pending long enough that an SDK runtime answering
+        # initialize before discovery completes makes its first model request
+        # without this tool and fails deterministically.
         time.sleep(0.25)
         send({
             "jsonrpc": "2.0",