diff --git a/src/telegram_codex_bot/transcript_parser.py b/src/telegram_codex_bot/transcript_parser.py
index 5fd4779..b7a1bae 100644
--- a/src/telegram_codex_bot/transcript_parser.py
+++ b/src/telegram_codex_bot/transcript_parser.py
@@ -1048,21 +1048,11 @@ def append_result(entry: ParsedEntry) -> None:
                                 )
                             )
                         elif result_text or result_images:
-                            append_result(
-                                ParsedEntry(
-                                    role="assistant",
-                                    text=cls._format_tool_result_text(
-                                        result_text, tool_name
-                                    )
-                                    if result_text
-                                    else (tool_summary or ""),
-                                    content_type="tool_result",
-                                    tool_use_id=_tuid,
-                                    timestamp=entry_timestamp,
-                                    tool_name=tool_name,
-                                    image_data=result_images,
-                                )
-                            )
+                            # If the matching tool_use was already skipped or the
+                            # monitor resumed after it, the output has no context.
+                            # Do not send anonymous raw output as a persistent
+                            # expandable quote in Telegram.
+                            continue
 
                     elif btype == "text":
                         t = block.get("text", "").strip()
diff --git a/tests/telegram_codex_bot/test_transcript_parser.py b/tests/telegram_codex_bot/test_transcript_parser.py
index d608bf5..03af9e3 100644
--- a/tests/telegram_codex_bot/test_transcript_parser.py
+++ b/tests/telegram_codex_bot/test_transcript_parser.py
@@ -852,6 +852,25 @@ def test_wait_function_call_output_keeps_tool_name_for_auto_cleanup(self):
         assert [entry.content_type for entry in result] == ["tool_use", "tool_result"]
         assert result[1].tool_name == "Wait"
 
+    def test_unpaired_function_call_output_is_hidden_in_monitor_mode(self):
+        parsed = TranscriptParser.parse_line(
+            json.dumps(
+                {
+                    "type": "response_item",
+                    "payload": {
+                        "type": "function_call_output",
+                        "call_id": "call_missing_tool_use",
+                        "output": 'Chunk ID: abc\nWall time: 0.0\nOutput:\n{"conclusion":"failure"}',
+                    },
+                }
+            )
+        )
+
+        result, pending = TranscriptParser.parse_entries([parsed], pending_tools={})
+
+        assert result == []
+        assert pending == {}
+
     def test_local_command_with_stdout(self, make_jsonl_entry, make_text_block):
         xml = (
             "<command-name>/status</command-name>"