feat: add draft email workflow action (#17793)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

packages/twenty-server/src/modules/workflow/workflow-executor/factories/workflow-action.factory.ts

@@ -51,6 +51,8 @@ export class WorkflowActionFactory {
         return this.logicFunctionWorkflowAction;
       case WorkflowActionType.SEND_EMAIL:
         return this.toolExecutorWorkflowAction;
+      case WorkflowActionType.DRAFT_EMAIL:
+        return this.toolExecutorWorkflowAction;
       case WorkflowActionType.CREATE_RECORD:
         return this.createRecordWorkflowAction;
       case WorkflowActionType.UPSERT_RECORD:

packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/mail-sender/guards/is-workflow-draft-email-action.guard.ts

@@ -0,0 +1,11 @@
+import {
+  type WorkflowAction,
+  WorkflowActionType,
+  type WorkflowDraftEmailAction,
+} from 'src/modules/workflow/workflow-executor/workflow-actions/types/workflow-action.type';
+
+export const isWorkflowDraftEmailAction = (
+  action: WorkflowAction,
+): action is WorkflowDraftEmailAction => {
+  return action.type === WorkflowActionType.DRAFT_EMAIL;
+};

packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/tool-executor-workflow-action.ts

@@ -4,8 +4,9 @@ import { resolveInput, resolveRichTextVariables } from 'twenty-shared/utils';
 
 import { type WorkflowAction } from 'src/modules/workflow/workflow-executor/interfaces/workflow-action.interface';
 
+import { DraftEmailTool } from 'src/engine/core-modules/tool/tools/email-tool/draft-email-tool';
 import { HttpTool } from 'src/engine/core-modules/tool/tools/http-tool/http-tool';
-import { SendEmailTool } from 'src/engine/core-modules/tool/tools/send-email-tool/send-email-tool';
+import { SendEmailTool } from 'src/engine/core-modules/tool/tools/email-tool/send-email-tool';
 import { type ToolInput } from 'src/engine/core-modules/tool/types/tool-input.type';
 import { type Tool } from 'src/engine/core-modules/tool/types/tool.type';
 import { type WorkflowActionInput } from 'src/modules/workflow/workflow-executor/types/workflow-action-input';
@@ -20,10 +21,12 @@ export class ToolExecutorWorkflowAction implements WorkflowAction {
   constructor(
     private readonly httpTool: HttpTool,
     private readonly sendEmailTool: SendEmailTool,
+    private readonly draftEmailTool: DraftEmailTool,
   ) {
     this.toolsByActionType = new Map<WorkflowActionType, Tool>([
       [WorkflowActionType.HTTP_REQUEST, this.httpTool],
       [WorkflowActionType.SEND_EMAIL, this.sendEmailTool],
+      [WorkflowActionType.DRAFT_EMAIL, this.draftEmailTool],
     ]);
   }
 
@@ -47,13 +50,16 @@ export class ToolExecutorWorkflowAction implements WorkflowAction {
 
     let toolInput = step.settings.input;
 
-    if (step.type === WorkflowActionType.SEND_EMAIL) {
-      const sendEmailInput = toolInput as WorkflowSendEmailActionInput;
+    if (
+      step.type === WorkflowActionType.SEND_EMAIL ||
+      step.type === WorkflowActionType.DRAFT_EMAIL
+    ) {
+      const emailInput = toolInput as WorkflowSendEmailActionInput;
 
-      if (sendEmailInput.body) {
+      if (emailInput.body) {
         toolInput = {
-          ...sendEmailInput,
-          body: resolveRichTextVariables(sendEmailInput.body, context),
+          ...emailInput,
+          body: resolveRichTextVariables(emailInput.body, context),
         };
       }
     }

packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/types/workflow-action-type.enum.ts

@@ -2,6 +2,7 @@ export enum WorkflowActionType {
   CODE = 'CODE',
   LOGIC_FUNCTION = 'LOGIC_FUNCTION',
   SEND_EMAIL = 'SEND_EMAIL',
+  DRAFT_EMAIL = 'DRAFT_EMAIL',
   CREATE_RECORD = 'CREATE_RECORD',
   UPDATE_RECORD = 'UPDATE_RECORD',
   DELETE_RECORD = 'DELETE_RECORD',

packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/types/workflow-action.type.ts

@@ -51,6 +51,11 @@ export type WorkflowSendEmailAction = BaseWorkflowAction & {
   settings: WorkflowSendEmailActionSettings;
 };
 
+export type WorkflowDraftEmailAction = BaseWorkflowAction & {
+  type: WorkflowActionType.DRAFT_EMAIL;
+  settings: WorkflowSendEmailActionSettings;
+};
+
 export type WorkflowCreateRecordAction = BaseWorkflowAction & {
   type: WorkflowActionType.CREATE_RECORD;
   settings: WorkflowCreateRecordActionSettings;
@@ -119,6 +124,7 @@ export type WorkflowAction =
   | WorkflowCodeAction
   | WorkflowLogicFunctionAction
   | WorkflowSendEmailAction
+  | WorkflowDraftEmailAction
   | WorkflowCreateRecordAction
   | WorkflowUpdateRecordAction
   | WorkflowDeleteRecordAction