Pitstop

Instructions

Implementation Reference

• tools/telemetry/compare.py:31-94 (handler)

  Main handler function that loads F1 session data with FastF1, retrieves specified or fastest laps for two drivers, fetches their telemetry DataFrames, converts to TelemetryPoint models using helper, and returns structured TelemetryComparisonResponse.
  def compare_driver_telemetry( year: int, gp: Union[str, int], session: str, driver1: Union[str, int], driver2: Union[str, int], lap1: Optional[int] = None, lap2: Optional[int] = None ) -> TelemetryComparisonResponse: """ Compare telemetry between two drivers - racing lines, braking points, styles. Args: year: Season year (2018+) gp: Grand Prix name or round session: 'FP1', 'FP2', 'FP3', 'Q', 'S', 'R' driver1, driver2: Driver codes or numbers lap1, lap2: Lap numbers (fastest if None) Returns: TelemetryComparisonResponse with both drivers' telemetry Example: compare_driver_telemetry(2024, "Monza", "Q", "VER", "HAM") → Fastest laps comparison """ session_obj = fastf1_client.get_session(year, gp, session) session_obj.load(laps=True, telemetry=True, weather=False, messages=False) event = session_obj.event # Get driver 1 lap driver1_laps = session_obj.laps.pick_drivers(driver1) if lap1 is None: lap1_data = driver1_laps.pick_fastest() else: lap1_data = driver1_laps[driver1_laps['LapNumber'] == lap1].iloc[0] # Get driver 2 lap driver2_laps = session_obj.laps.pick_drivers(driver2) if lap2 is None: lap2_data = driver2_laps.pick_fastest() else: lap2_data = driver2_laps[driver2_laps['LapNumber'] == lap2].iloc[0] # Get telemetry tel1_df = lap1_data.get_telemetry() tel2_df = lap2_data.get_telemetry() # Convert to Pydantic models driver1_telemetry = _telemetry_to_points(tel1_df) driver2_telemetry = _telemetry_to_points(tel2_df) return TelemetryComparisonResponse( session_name=session_obj.name, event_name=event['EventName'], driver1=str(lap1_data['Driver']), driver1_lap=int(lap1_data['LapNumber']), driver1_telemetry=driver1_telemetry, driver1_lap_time=str(lap1_data['LapTime']) if pd.notna(lap1_data.get('LapTime')) else None, driver2=str(lap2_data['Driver']), driver2_lap=int(lap2_data['LapNumber']), driver2_telemetry=driver2_telemetry, driver2_lap_time=str(lap2_data['LapTime']) if pd.notna(lap2_data.get('LapTime')) else None, )
• models/telemetry/telemetry.py:33-46 (schema)

  Pydantic BaseModel defining the output schema for the tool response, including telemetry lists for both drivers. TelemetryPoint model (lines 5-19) defines individual data points.
  class TelemetryComparisonResponse(BaseModel): """Telemetry comparison response for two drivers.""" session_name: str = Field(description="Session name") event_name: str = Field(description="Grand Prix name") driver1: str = Field(description="First driver abbreviation") driver1_lap: int = Field(description="First driver lap number") driver1_telemetry: list[TelemetryPoint] = Field(description="First driver telemetry") driver1_lap_time: Optional[str] = Field(None, description="First driver lap time") driver2: str = Field(description="Second driver abbreviation") driver2_lap: int = Field(description="Second driver lap number") driver2_telemetry: list[TelemetryPoint] = Field(description="Second driver telemetry") driver2_lap_time: Optional[str] = Field(None, description="Second driver lap time")
• server.py:159-159 (registration)

  Registration of the tool using FastMCP decorator in the main server file.
  mcp.tool()(compare_driver_telemetry)
• tools/telemetry/compare.py:10-28 (helper)

  Supporting function to transform FastF1 telemetry pandas DataFrame rows into list of TelemetryPoint pydantic models for serialization.
  def _telemetry_to_points(telemetry_df): """Convert telemetry DataFrame to list of TelemetryPoint pydantic models.""" points = [] for idx, row in telemetry_df.iterrows(): point = TelemetryPoint( session_time=str(row['SessionTime']) if pd.notna(row.get('SessionTime')) else None, distance=float(row['Distance']) if pd.notna(row.get('Distance')) else None, speed=float(row['Speed']) if pd.notna(row.get('Speed')) else None, rpm=float(row['RPM']) if pd.notna(row.get('RPM')) else None, n_gear=int(row['nGear']) if pd.notna(row.get('nGear')) else None, throttle=float(row['Throttle']) if pd.notna(row.get('Throttle')) else None, brake=float(row['Brake']) if pd.notna(row.get('Brake')) else None, drs=int(row['DRS']) if pd.notna(row.get('DRS')) else None, x=float(row['X']) if pd.notna(row.get('X')) else None, y=float(row['Y']) if pd.notna(row.get('Y')) else None, z=float(row['Z']) if pd.notna(row.get('Z')) else None, ) points.append(point) return points