From 67479e98fd7662fd535e30c80eaf1f055146fc82 Mon Sep 17 00:00:00 2001
From: Mohamed-Mamdouh <eng.mohamed.mamdouh@gmail.com>
Date: Thu, 21 May 2026 03:13:50 +0100
Subject: [PATCH] fix timestamps in tuner accumelator (#335)

* fix timestamps in tuner accumelator

* chore: refactor strip_thought_ids_from_messages

---------

Co-authored-by: Abhishek Kumar <abhishek@a6k.me>
---
 api/services/integrations/tuner/collector.py | 13 +++++-
 api/tests/test_message_sanitization.py       | 42 ++++++++++++++++++++
 pipecat                                      |  2 +-
 3 files changed, 54 insertions(+), 3 deletions(-)
 create mode 100644 api/tests/test_message_sanitization.py

diff --git a/api/services/integrations/tuner/collector.py b/api/services/integrations/tuner/collector.py
index e55ab85..73dd410 100644
--- a/api/services/integrations/tuner/collector.py
+++ b/api/services/integrations/tuner/collector.py
@@ -23,6 +23,7 @@ from pipecat.observers.base_observer import BaseObserver, FramePushed
 from pipecat.observers.turn_tracking_observer import TurnTrackingObserver
 from pipecat.observers.user_bot_latency_observer import UserBotLatencyObserver
 from pipecat.processors.frame_processor import FrameDirection
+from pipecat.utils.context.message_sanitization import strip_thought_ids_from_messages
 from tuner_pipecat_sdk.accumulator import CallAccumulator
 from tuner_pipecat_sdk.payload_builder import build_payload
 
@@ -76,6 +77,7 @@ class TunerCollector(BaseObserver):
         self._agent_version = agent_version
         self._acc = CallAccumulator()
         self._acc.call_start_abs_ns = time.time_ns()
+        self._pipeline_start_rel_ns: int | None = None
         self._context_provider: Callable[[], list[dict[str, Any]]] | None = None
         self._processed_frames: set[int] = set()
         self._frame_history: deque[int] = deque(maxlen=max_frames)
@@ -130,7 +132,14 @@ class TunerCollector(BaseObserver):
             self._processed_frames = set(self._frame_history)
 
         frame = data.frame
-        timestamp_ns = data.timestamp
+
+        # data.timestamp is a pipeline-relative clock (ns since pipeline start).
+        # Convert to absolute ns so the accumulator's _rel_ms() works correctly.
+        if self._pipeline_start_rel_ns is None:
+            self._pipeline_start_rel_ns = data.timestamp
+        timestamp_ns = self._acc.call_start_abs_ns + (
+            data.timestamp - self._pipeline_start_rel_ns
+        )
 
         if isinstance(frame, StartFrame):
             self._acc.on_start(timestamp_ns)
@@ -165,7 +174,7 @@ class TunerCollector(BaseObserver):
             )
             return None
 
-        transcript = list(self._context_provider())
+        transcript = strip_thought_ids_from_messages(list(self._context_provider()))
         payload = build_payload(
             self._acc,
             _PayloadConfig(
diff --git a/api/tests/test_message_sanitization.py b/api/tests/test_message_sanitization.py
new file mode 100644
index 0000000..2d2ef66
--- /dev/null
+++ b/api/tests/test_message_sanitization.py
@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+from copy import deepcopy
+
+from pipecat.utils.context.message_sanitization import (
+    strip_thought_from_id,
+    strip_thought_ids_from_messages,
+)
+
+
+def test_strip_thought_from_id():
+    assert strip_thought_from_id("call_123__thought__abc") == "call_123"
+    assert strip_thought_from_id("call_123") == "call_123"
+    assert strip_thought_from_id(None) is None
+
+
+def test_strip_thought_ids_from_messages_does_not_mutate_input():
+    messages = [
+        {
+            "role": "assistant",
+            "tool_calls": [
+                {
+                    "id": "call_1__thought__hidden",
+                    "type": "function",
+                    "function": {"name": "lookup", "arguments": "{}"},
+                }
+            ],
+        },
+        {
+            "role": "tool",
+            "tool_call_id": "call_1__thought__hidden",
+            "content": '{"status":"ok"}',
+        },
+    ]
+    original = deepcopy(messages)
+
+    cleaned = strip_thought_ids_from_messages(messages)
+
+    assert messages == original
+    assert cleaned is not messages
+    assert cleaned[0]["tool_calls"][0]["id"] == "call_1"
+    assert cleaned[1]["tool_call_id"] == "call_1"
diff --git a/pipecat b/pipecat
index ce4ee2d..6b4474c 160000
--- a/pipecat
+++ b/pipecat
@@ -1 +1 @@
-Subproject commit ce4ee2d6fc0d0982ad03a1468a517cc5e568aaa9
+Subproject commit 6b4474c1b870eae5e42ef7c5eec1b7f37fcecc61