diff --git a/proto/aquila/aquila.action.proto b/proto/aquila/aquila.action.proto
index 1651cc1..5200216 100644
--- a/proto/aquila/aquila.action.proto
+++ b/proto/aquila/aquila.action.proto
@@ -7,6 +7,21 @@ package aquila;
 import "shared.module.proto";
 import "shared.execution_result.proto";
 import "shared.struct.proto";
+import "shared.flow.proto";
+import "shared.translation.proto";
+import "shared.errors.proto";
+
+message ActionFlow {
+  int64 flow_id = 1;
+  int64 project_id = 2;
+
+  repeated shared.FlowSetting settings = 3;
+  shared.Struct input_schema = 4;
+  shared.Struct output_schema = 5;
+  string project_slug = 6;
+
+  string name = 7;
+}
 
 // Event that gets admitted by an action
 message ActionEvent {
@@ -36,13 +51,36 @@ message ActionExecutionRequest {
   int64 project_id = 4;
 }
 
+message ActionFlowExecutioRequest {
+  string execution_identifier = 1;
+  string flow_id = 2;
+  shared.Value payload = 3;
+}
+
 message ActionExecutionResponse {
-   // Execution identifier of execution
+  // Execution identifier of execution
   string execution_identifier = 1;
   // Result of execution
   shared.NodeExecutionResult node_result = 2;
 }
 
+message ActionFlowExecutionResponse {
+  // Execution identifier of execution
+  string execution_identifier = 1;
+   oneof result {
+    shared.Value success = 2;
+    shared.Error failure = 3;
+   }
+}
+
+message ActionFlowUpdate {
+  oneof data {
+    ActionFlow updated_flow = 1;
+    int64 deleted_flow = 2;
+  }
+}
+
+// Messages sent by the Action
 message ActionTransferRequest {
   oneof data {
     // Identification of the action
@@ -54,15 +92,20 @@ message ActionTransferRequest {
     ActionEvent event = 2;
     // Result of execution that was triggered by a execution request
     ActionExecutionResponse result = 3;
+    // Result of an flow execution
+    ActionFlowExecutionResponse flow_execution_response = 4;
   }
 }
 
+// Messages sent by Aquila
 message ActionTransferResponse {
   oneof data {
     // Execution request
     ActionExecutionRequest execution = 1;
     // ModuleConfigurations that have been configured by the user
     shared.ModuleConfigurations module_configurations = 2;
+    // An Action Flow update
+    ActionFlowUpdate flow_update = 3;
   }
 }
 
diff --git a/proto/shared/shared.flow.proto b/proto/shared/shared.flow.proto
index 7530014..44472f4 100644
--- a/proto/shared/shared.flow.proto
+++ b/proto/shared/shared.flow.proto
@@ -6,6 +6,7 @@ package shared;
 
 import "shared.struct.proto";
 import "shared.data_type.proto";
+import "shared.translation.proto";
 
 message ValidationFlow {
   // Database ID -> req. for Aquila to identify in FlowStore
@@ -21,6 +22,12 @@ message ValidationFlow {
   string project_slug = 8;
   optional string disable_reason = 9;
   string signature = 10;
+
+  optional string definition_source = 11;
+  shared.Struct input_schema = 12;
+  shared.Struct output_schema = 13;
+ 
+  string name = 14;
 }
 
 message ExecutionFlow {
diff --git a/proto/velorum/velorum.info.proto b/proto/velorum/velorum.info.proto
index 2b0a6a4..4446956 100644
--- a/proto/velorum/velorum.info.proto
+++ b/proto/velorum/velorum.info.proto
@@ -4,10 +4,6 @@ option ruby_package = "Tucana::Velorum";
 
 package velorum;
 
-import "shared.function.proto";
-import "shared.data_type.proto";
-import "shared.flow.proto";
-
 message ModelsRequest {}
 
 message Model {