diff --git a/src/main/java/it/cnr/isti/workflow/manager/executions/ExecutionEventType.java b/src/main/java/it/cnr/isti/workflow/manager/executions/ExecutionEventType.java
index f4d9b91..59d7015 100644
--- a/src/main/java/it/cnr/isti/workflow/manager/executions/ExecutionEventType.java
+++ b/src/main/java/it/cnr/isti/workflow/manager/executions/ExecutionEventType.java
@@ -14,6 +14,11 @@ public enum ExecutionEventType {
     STEP_FAILED,
     STEP_WAITING_FOR_INTERACTION,
     STEP_RESUMED,
+    CONTAINER_SUBFLOW_STARTED,
+    CONTAINER_SUBFLOW_COMPLETED,
+    CONTAINER_ITERATION_STARTED,
+    CONTAINER_ITERATION_COMPLETED,
+    CONTAINER_CONDITION_EVALUATED,
     LLM_REQUEST,
     HTTP_REQUEST,
     MCP_SESSION_OPENED,
diff --git a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/NodeExecutors.java b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/NodeExecutors.java
index e8fe70a..b71bbd5 100644
--- a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/NodeExecutors.java
+++ b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/NodeExecutors.java
@@ -43,7 +43,7 @@ public final class NodeExecutors {
         }
         if (node instanceof Container<?> container) {
             return ContainerExecutors.get(container.getType()).execute((Container) container, inputs, authorizations,
-                    executionVariables, executionVariableDescriptors);
+                    executionVariables, executionVariableDescriptors, eventLogger);
         }
         throw new IllegalStateException("No executor found for node type " + node.getClass().getName());
     }
diff --git a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/ContainerExecutor.java b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/ContainerExecutor.java
index 5e929f5..6184f64 100644
--- a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/ContainerExecutor.java
+++ b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/ContainerExecutor.java
@@ -4,6 +4,7 @@ import java.util.List;
 import java.util.Map;
 
 import it.cnr.isti.workflow.manager.containers.Container;
+import it.cnr.isti.workflow.manager.executions.ExecutionEventLogger;
 import it.cnr.isti.workflow.manager.containers.types.ContainerType;
 import it.cnr.isti.workflow.manager.executions.ExecutionVariableDescriptor;
 import it.cnr.isti.workflow.manager.executions.steps.Input;
@@ -11,7 +12,8 @@ import it.cnr.isti.workflow.manager.executions.steps.Input;
 public interface ContainerExecutor<T extends ContainerType> {
 
     Map<String, Object> execute(Container<T> container, List<Input> inputs, Map<String, Object> authorizations,
-            Map<String, Object> executionVariables, Map<String, ExecutionVariableDescriptor> executionVariableDescriptors);
+            Map<String, Object> executionVariables, Map<String, ExecutionVariableDescriptor> executionVariableDescriptors,
+            ExecutionEventLogger eventLogger);
 
     Class<T> getContainerType();
 }
diff --git a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/GenericContainerExecutor.java b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/GenericContainerExecutor.java
index 6d0c755..5981d7e 100644
--- a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/GenericContainerExecutor.java
+++ b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/GenericContainerExecutor.java
@@ -11,6 +11,8 @@ import it.cnr.isti.workflow.manager.containers.Container;
 import it.cnr.isti.workflow.manager.containers.configurations.GenericContainerConfiguration;
 import it.cnr.isti.workflow.manager.containers.iresolvers.ContainerFlowInterfaceResolver;
 import it.cnr.isti.workflow.manager.containers.types.GenericContainerType;
+import it.cnr.isti.workflow.manager.executions.ExecutionEventLogger;
+import it.cnr.isti.workflow.manager.executions.ExecutionEventType;
 import it.cnr.isti.workflow.manager.executions.ExecutionObject;
 import it.cnr.isti.workflow.manager.executions.ExecutionStatus;
 import it.cnr.isti.workflow.manager.executions.ExecutionVariableDescriptor;
@@ -27,7 +29,7 @@ public class GenericContainerExecutor implements ContainerExecutor<GenericContai
     @Override
     public Map<String, Object> execute(Container<GenericContainerType> container, List<Input> inputs,
             Map<String, Object> authorizations, Map<String, Object> executionVariables,
-            Map<String, ExecutionVariableDescriptor> executionVariableDescriptors) {
+            Map<String, ExecutionVariableDescriptor> executionVariableDescriptors, ExecutionEventLogger eventLogger) {
         GenericContainerConfiguration configuration = (GenericContainerConfiguration) container.getSpecificConfiguration();
         if (configuration.getSubFlow() == null
                 || ((configuration.getSubFlow().getBlocks() == null || configuration.getSubFlow().getBlocks().isEmpty())
@@ -35,6 +37,11 @@ public class GenericContainerExecutor implements ContainerExecutor<GenericContai
             throw new IllegalArgumentException("GenericContainer subFlow is empty");
         }
 
+        if (eventLogger != null) {
+            eventLogger.info(ExecutionEventType.CONTAINER_SUBFLOW_STARTED,
+                    "Starting container subFlow",
+                    Map.of("containerType", GenericContainerType.TYPE));
+        }
         ExecutionObject innerExecution = executionsService.createExecution(container.getName() + " subflow", configuration.getSubFlow());
 
         propagateAuthorizations(innerExecution, authorizations);
@@ -72,6 +79,11 @@ public class GenericContainerExecutor implements ContainerExecutor<GenericContai
         if (innerExecution.getContext().getStatus() != ExecutionStatus.SUCCESS) {
             throw new IllegalStateException("GenericContainer subflow ended in unexpected status: " + innerExecution.getContext().getStatus());
         }
+        if (eventLogger != null) {
+            eventLogger.info(ExecutionEventType.CONTAINER_SUBFLOW_COMPLETED,
+                    "Completed container subFlow",
+                    Map.of("containerType", GenericContainerType.TYPE, "status", innerExecution.getContext().getStatus().name()));
+        }
         executionVariables.clear();
         executionVariables.putAll(innerExecution.getContext().getExecutionVariables());
         executionVariableDescriptors.clear();
diff --git a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/IteratorContainerExecutor.java b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/IteratorContainerExecutor.java
index 26d3a78..183df07 100644
--- a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/IteratorContainerExecutor.java
+++ b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/IteratorContainerExecutor.java
@@ -11,6 +11,8 @@ import it.cnr.isti.workflow.manager.containers.Container;
 import it.cnr.isti.workflow.manager.containers.configurations.IteratorContainerConfiguration;
 import it.cnr.isti.workflow.manager.containers.iresolvers.IteratorContainerInterfaceResolver;
 import it.cnr.isti.workflow.manager.containers.types.IteratorContainerType;
+import it.cnr.isti.workflow.manager.executions.ExecutionEventLogger;
+import it.cnr.isti.workflow.manager.executions.ExecutionEventType;
 import it.cnr.isti.workflow.manager.executions.ExecutionObject;
 import it.cnr.isti.workflow.manager.executions.ExecutionStatus;
 import it.cnr.isti.workflow.manager.executions.ExecutionVariableDescriptor;
@@ -30,7 +32,7 @@ public class IteratorContainerExecutor implements ContainerExecutor<IteratorCont
     @Override
     public Map<String, Object> execute(Container<IteratorContainerType> container, List<Input> inputs,
             Map<String, Object> authorizations, Map<String, Object> executionVariables,
-            Map<String, ExecutionVariableDescriptor> executionVariableDescriptors) {
+            Map<String, ExecutionVariableDescriptor> executionVariableDescriptors, ExecutionEventLogger eventLogger) {
         IteratorContainerConfiguration configuration = (IteratorContainerConfiguration) container.getSpecificConfiguration();
         IteratorContainerInterfaceResolver.Resolution resolution = IteratorContainerInterfaceResolver.resolvePorts(configuration);
         IteratorContainerInterfaceResolver.ResolvedInput iteratedInput = resolution.inputsByPublicName()
@@ -53,7 +55,14 @@ public class IteratorContainerExecutor implements ContainerExecutor<IteratorCont
             collectedOutputs.put(output.publicName(), new ArrayList<>());
         }
 
+        int iterationIndex = 0;
         for (Object iterationValue : iterationValues) {
+            iterationIndex++;
+            if (eventLogger != null) {
+                eventLogger.info(ExecutionEventType.CONTAINER_ITERATION_STARTED,
+                        "Starting iterator iteration " + iterationIndex,
+                        Map.of("containerType", IteratorContainerType.TYPE, "iteration", iterationIndex, "value", iterationValue));
+            }
             ExecutionObject innerExecution = executionsService.createExecution(container.getName() + " iteration",
                     configuration.getSubFlow());
 
@@ -84,6 +93,11 @@ public class IteratorContainerExecutor implements ContainerExecutor<IteratorCont
                                 resolvedOutput.exposedHandle().handle().io().getName()));
                 collectedOutputs.get(resolvedOutput.publicName()).add(value);
             }
+            if (eventLogger != null) {
+                eventLogger.info(ExecutionEventType.CONTAINER_ITERATION_COMPLETED,
+                        "Completed iterator iteration " + iterationIndex,
+                        Map.of("containerType", IteratorContainerType.TYPE, "iteration", iterationIndex));
+            }
         }
 
         return new LinkedHashMap<>(collectedOutputs);
diff --git a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/LoopContainerExecutor.java b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/LoopContainerExecutor.java
index 41dc988..4224b3e 100644
--- a/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/LoopContainerExecutor.java
+++ b/src/main/java/it/cnr/isti/workflow/manager/executions/executors/containers/LoopContainerExecutor.java
@@ -21,6 +21,8 @@ import it.cnr.isti.workflow.manager.containers.Container;
 import it.cnr.isti.workflow.manager.containers.configurations.LoopContainerConfiguration;
 import it.cnr.isti.workflow.manager.containers.iresolvers.ContainerFlowInterfaceResolver;
 import it.cnr.isti.workflow.manager.containers.types.LoopContainerType;
+import it.cnr.isti.workflow.manager.executions.ExecutionEventLogger;
+import it.cnr.isti.workflow.manager.executions.ExecutionEventType;
 import it.cnr.isti.workflow.manager.executions.ExecutionObject;
 import it.cnr.isti.workflow.manager.executions.ExecutionStatus;
 import it.cnr.isti.workflow.manager.executions.ExecutionTemplateResolver;
@@ -55,7 +57,7 @@ public class LoopContainerExecutor implements ContainerExecutor<LoopContainerTyp
     @Override
     public Map<String, Object> execute(Container<LoopContainerType> container, List<Input> inputs,
             Map<String, Object> authorizations, Map<String, Object> executionVariables,
-            Map<String, ExecutionVariableDescriptor> executionVariableDescriptors) {
+            Map<String, ExecutionVariableDescriptor> executionVariableDescriptors, ExecutionEventLogger eventLogger) {
         LoopContainerConfiguration configuration = (LoopContainerConfiguration) container.getSpecificConfiguration();
         if (configuration.getSubFlow() == null || configuration.getSubFlow().getNodes().isEmpty()) {
             throw new IllegalArgumentException("LoopContainer subFlow is empty");
@@ -74,6 +76,11 @@ public class LoopContainerExecutor implements ContainerExecutor<LoopContainerTyp
         Map<String, Object> latestOutputs = new LinkedHashMap<>();
 
         for (int iteration = 1; iteration <= configuration.getMaxIterations(); iteration++) {
+            if (eventLogger != null) {
+                eventLogger.info(ExecutionEventType.CONTAINER_ITERATION_STARTED,
+                        "Starting loop iteration " + iteration,
+                        Map.of("containerType", LoopContainerType.TYPE, "iteration", iteration));
+            }
             ExecutionObject innerExecution = executionsService.createExecution(
                     container.getName() + " iteration " + iteration,
                     configuration.getSubFlow());
@@ -107,7 +114,16 @@ public class LoopContainerExecutor implements ContainerExecutor<LoopContainerTyp
 
             updateInputsForNextIteration(currentInputs, latestOutputs, inputPortsByName);
 
-            if (shouldStop(configuration, currentInputs, latestOutputs, authorizations, executionVariables, iteration)) {
+            boolean shouldStop = shouldStop(configuration, currentInputs, latestOutputs, authorizations, executionVariables, iteration);
+            if (eventLogger != null) {
+                eventLogger.info(ExecutionEventType.CONTAINER_CONDITION_EVALUATED,
+                        "Evaluated loop stop condition",
+                        Map.of("containerType", LoopContainerType.TYPE, "iteration", iteration, "stop", shouldStop));
+                eventLogger.info(ExecutionEventType.CONTAINER_ITERATION_COMPLETED,
+                        shouldStop ? "Loop completed at iteration " + iteration : "Completed loop iteration " + iteration,
+                        Map.of("containerType", LoopContainerType.TYPE, "iteration", iteration, "stop", shouldStop));
+            }
+            if (shouldStop) {
                 return new LinkedHashMap<>(latestOutputs);
             }
         }
diff --git a/src/test/java/it/cnr/isti/workflow/manager/executions/ExecutionTest.java b/src/test/java/it/cnr/isti/workflow/manager/executions/ExecutionTest.java
index 0066e75..0e5ee61 100644
--- a/src/test/java/it/cnr/isti/workflow/manager/executions/ExecutionTest.java
+++ b/src/test/java/it/cnr/isti/workflow/manager/executions/ExecutionTest.java
@@ -1048,6 +1048,10 @@ public class ExecutionTest {
        Object output = execObject.getContext().getResult().values().stream().findFirst().orElseThrow();
        assertTrue(output instanceof List<?>);
        assertEquals(List.of("Hello, Alice!", "Hello, Bob!"), output);
+       assertTrue(execObject.getContext().getEvents().stream()
+               .anyMatch(event -> event.getType() == ExecutionEventType.CONTAINER_ITERATION_STARTED));
+        assertTrue(execObject.getContext().getEvents().stream()
+               .anyMatch(event -> event.getType() == ExecutionEventType.CONTAINER_ITERATION_COMPLETED));
    }
 
    @Test
@@ -1084,6 +1088,8 @@ public class ExecutionTest {
        assertEquals(ExecutionStatus.SUCCESS, execObject.getContext().getStatus());
        Object output = execObject.getContext().getResult().values().stream().findFirst().orElseThrow();
        assertEquals("Hello, Alice!", output);
+       assertTrue(execObject.getContext().getEvents().stream()
+               .anyMatch(event -> event.getType() == ExecutionEventType.CONTAINER_CONDITION_EVALUATED));
    }
 
    @Test