diff --git a/src/aare/daq/operations/loop_centering/models.py b/src/aare/daq/operations/loop_centering/models.py
index d64cd2b0..4313b81a 100644
--- a/src/aare/daq/operations/loop_centering/models.py
+++ b/src/aare/daq/operations/loop_centering/models.py
@@ -1,11 +1,15 @@
 from dataclasses import dataclass, field
-from typing import Callable
 
 from aare.common.coordinate import SmargonCoordinate
-from aare.common.sample_geometry import SampleGeometryModel
 from aare.daq.config import BeamlineConfig
 from aare.daq.devices import BeamlineDevices
-from aare.daq.mlbox import MlBox, MLBoxPredictionsResult
+from aare.daq.mlbox import MlBox
+from aare.daq.operations.common.runtime import (
+    DAQRuntimeState,
+    OperationServices,
+    PredictionProvider,
+    TraceWriter,
+)
 
 
 @dataclass
@@ -44,8 +48,7 @@ class LoopCenteringContext:
     devs: BeamlineDevices
     mlbox: MlBox
     settings: LoopCenteringSettings
-
-    sample_geometry_provider: Callable[[], SampleGeometryModel]
-    save_screenshot_db: Callable[[int, str, float], None]
-    append_smargon_trace: Callable[..., None]
-    get_predictions: Callable[[], MLBoxPredictionsResult]
\ No newline at end of file
+    runtime: DAQRuntimeState
+    services: OperationServices
+    trace_writer: TraceWriter
+    prediction_provider: PredictionProvider
\ No newline at end of file
diff --git a/src/aare/daq/operations/loop_centering/service.py b/src/aare/daq/operations/loop_centering/service.py
index c5643ccb..0fe50966 100644
--- a/src/aare/daq/operations/loop_centering/service.py
+++ b/src/aare/daq/operations/loop_centering/service.py
@@ -58,7 +58,7 @@ class LoopCenteringService:
             analysis.moved = True
 
             if sample_id is not None and trace_all_alc_moves:
-                self.ctx.append_smargon_trace(
+                self.ctx.trace_writer.append_smargon_trace(
                     sample_id=sample_id,
                     event=f"alc_move_zoom_{zoom_value:.0f}_angle_{angle}",
                 )
@@ -70,7 +70,7 @@ class LoopCenteringService:
             MLBoxType.LOOP_FACE.value,
             MLBoxType.CRYSTAL.value,
         ):
-            self.ctx.save_screenshot_db(
+            self.ctx.services.screenshots.save_to_db(
                 sample_id,
                 f"{sample_id}_{angle}_{zoom_value:.0f}",
                 wait_screenshot_sleep_sec,
@@ -106,7 +106,7 @@ class LoopCenteringService:
                 self.logger.info(
                     f"submitting to db loop center sequence for sample {sample_id}, zoom={zoom_value}"
                 )
-                self.ctx.save_screenshot_db(sample_id, "pre_alc", wait_screenshot_sleep_sec)
+                self.ctx.services.screenshots.save_to_db(sample_id, "pre_alc", wait_screenshot_sleep_sec)
 
             for attempt_number in range(1, max_attempts + 1):
                 self.logger.info(f"Starting ALC attempt {attempt_number}/{max_attempts}")
@@ -158,7 +158,7 @@ class LoopCenteringService:
                 if valid_seen_correction:
                     if sample_id is not None:
                         self.logger.info(f"sample {sample_id} centered")
-                        self.ctx.append_smargon_trace(sample_id=sample_id, event="alc_success")
+                        self.ctx.trace_writer.append_smargon_trace(sample_id=sample_id, event="alc_success")
                     return LoopCenteringResult(success=True)
 
             failure_reason = f"ALC exceeded max attempts ({max_attempts})"