diff --git a/crates/g3-core/src/lib.rs b/crates/g3-core/src/lib.rs
index 6ff44f1..f6df224 100644
--- a/crates/g3-core/src/lib.rs
+++ b/crates/g3-core/src/lib.rs
@@ -4206,6 +4206,11 @@ impl<W: UiWriter> Agent<W> {
                                     self.ui_writer.print_agent_response(&filtered_content);
                                     self.ui_writer.flush();
                                     current_response.push_str(&filtered_content);
+
+                                    // Mark parser buffer as consumed up to current position
+                                    // This prevents tool-call-like patterns in displayed text
+                                    // from triggering false positives in has_unexecuted_tool_call()
+                                    parser.mark_tool_calls_consumed();
                                 }
                             }
                         }