feat: implement transferWorkflow operation in n8n_update_partial_workflow (#644) (#649)

Add transferWorkflow diff operation to move workflows between n8n projects:
- TransferWorkflowOperation type with destinationProjectId field
- WorkflowDiffEngine validates and tracks transfer intent
- Handler calls PUT /workflows/{id}/transfer after update
- N8nApiClient.transferWorkflow() method
- Zod schema validates destinationProjectId is non-empty
- Tool description and documentation updated
- inferIntentFromOperations case for transfer

Also fixes two pre-existing bugs found during review:
- continueOnError path now properly extracts/propagates activation flags
- Debug log in updateConnectionReferences shows correct old name

Based on work by @djakielski in PR #645.


Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

CHANGELOG.md

@@ -7,6 +7,31 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.38.0] - 2026-03-20
+
+### Added
+
+- **`transferWorkflow` diff operation** (Issue #644): Move workflows between projects via `n8n_update_partial_workflow`
+  - New `transferWorkflow` operation type with `destinationProjectId` parameter
+  - Calls `PUT /workflows/{id}/transfer` via dedicated API after workflow update
+  - Proper error handling: returns `{ success: false, saved: true }` when transfer fails after update
+  - Transfer executes before activation so workflow is in target project first
+  - Zod schema validates `destinationProjectId` is non-empty
+  - Updated tool description and documentation to list the new operation
+  - `inferIntentFromOperations` returns descriptive intent for transfer operations
+  - `N8nApiClient.transferWorkflow()` method added
+
+Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en
+
+## [2.37.4] - 2026-03-18
+
+### Changed
+
+- **Updated n8n dependencies**: n8n 2.11.4 → 2.12.3, n8n-core 2.11.1 → 2.12.0, n8n-workflow 2.11.1 → 2.12.0, @n8n/n8n-nodes-langchain 2.11.2 → 2.12.0
+- **Rebuilt node database**: 1,239 nodes (809 from n8n-nodes-base and @n8n/n8n-nodes-langchain, 430 community)
+
+Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en
+
 ## [2.37.3] - 2026-03-15
 
 ### Fixed

README.md

@@ -5,7 +5,7 @@
 [![npm version](https://img.shields.io/npm/v/n8n-mcp.svg)](https://www.npmjs.com/package/n8n-mcp)
 [![codecov](https://codecov.io/gh/czlonkowski/n8n-mcp/graph/badge.svg?token=YOUR_TOKEN)](https://codecov.io/gh/czlonkowski/n8n-mcp)
 [![Tests](https://img.shields.io/badge/tests-3336%20passing-brightgreen.svg)](https://github.com/czlonkowski/n8n-mcp/actions)
-[![n8n version](https://img.shields.io/badge/n8n-2.11.4-orange.svg)](https://github.com/n8n-io/n8n)
+[![n8n version](https://img.shields.io/badge/n8n-2.12.3-orange.svg)](https://github.com/n8n-io/n8n)
 [![Docker](https://img.shields.io/badge/docker-ghcr.io%2Fczlonkowski%2Fn8n--mcp-green.svg)](https://github.com/czlonkowski/n8n-mcp/pkgs/container/n8n-mcp)
 [![Deploy on Railway](https://railway.com/button.svg)](https://railway.com/deploy/n8n-mcp?referralCode=n8n-mcp)
 

dist/mcp/handlers-workflow-diff.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"handlers-workflow-diff.d.ts","sourceRoot":"","sources":["../../src/mcp/handlers-workflow-diff.ts"],"names":[],"mappings":"AAMA,OAAO,EAAE,eAAe,EAAE,MAAM,kBAAkB,CAAC;AAMnD,OAAO,EAAE,eAAe,EAAE,MAAM,2BAA2B,CAAC;AAE5D,OAAO,EAAE,cAAc,EAAE,MAAM,6BAA6B,CAAC;AAkF7D,wBAAsB,2BAA2B,CAC/C,IAAI,EAAE,OAAO,EACb,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CAib1B"}

dist/mcp/handlers-workflow-diff.js

@@ -79,6 +79,7 @@ const workflowDiffSchema = zod_1.z.object({
         settings: zod_1.z.any().optional(),
         name: zod_1.z.string().optional(),
         tag: zod_1.z.string().optional(),
+        destinationProjectId: zod_1.z.string().min(1).optional(),
         id: zod_1.z.string().optional(),
     }).transform((op) => {
         if (NODE_TARGETING_OPERATIONS.has(op.type)) {
@@ -329,6 +330,25 @@ async function handleUpdatePartialWorkflow(args, repository, context) {
                     logger_1.logger.warn('Tag operations failed (non-blocking)', tagError);
                 }
             }
+            let transferMessage = '';
+            if (diffResult.transferToProjectId) {
+                try {
+                    await client.transferWorkflow(input.id, diffResult.transferToProjectId);
+                    transferMessage = ` Workflow transferred to project ${diffResult.transferToProjectId}.`;
+                }
+                catch (transferError) {
+                    logger_1.logger.error('Failed to transfer workflow to project', transferError);
+                    return {
+                        success: false,
+                        saved: true,
+                        error: 'Workflow updated successfully but project transfer failed',
+                        details: {
+                            workflowUpdated: true,
+                            transferError: transferError instanceof Error ? transferError.message : 'Unknown error'
+                        }
+                    };
+                }
+            }
             let finalWorkflow = updatedWorkflow;
             let activationMessage = '';
             try {
@@ -409,7 +429,7 @@ async function handleUpdatePartialWorkflow(args, repository, context) {
                     nodeCount: finalWorkflow.nodes?.length || 0,
                     operationsApplied: diffResult.operationsApplied
                 },
-                message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${activationMessage} Use n8n_get_workflow with mode 'structure' to verify current state.`,
+                message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${transferMessage}${activationMessage} Use n8n_get_workflow with mode 'structure' to verify current state.`,
                 details: {
                     applied: diffResult.applied,
                     failed: diffResult.failed,
@@ -498,6 +518,8 @@ function inferIntentFromOperations(operations) {
                 return 'Activate workflow';
             case 'deactivateWorkflow':
                 return 'Deactivate workflow';
+            case 'transferWorkflow':
+                return `Transfer workflow to project ${op.destinationProjectId || ''}`.trim();
             default:
                 return `Workflow ${op.type}`;
         }

dist/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"n8n-update-partial-workflow.d.ts","sourceRoot":"","sources":["../../../../src/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,iBAAiB,EAAE,MAAM,UAAU,CAAC;AAE7C,eAAO,MAAM,2BAA2B,EAAE,iBAuazC,CAAC"}

dist/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.js

@@ -5,7 +5,7 @@ exports.n8nUpdatePartialWorkflowDoc = {
     name: 'n8n_update_partial_workflow',
     category: 'workflow_management',
     essentials: {
-        description: 'Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, rewireConnection, cleanStaleConnections, replaceConnections, updateSettings, updateName, add/removeTag, activateWorkflow, deactivateWorkflow. Supports smart parameters (branch, case) for multi-output nodes. Full support for AI connections (ai_languageModel, ai_tool, ai_memory, ai_embedding, ai_vectorStore, ai_document, ai_textSplitter, ai_outputParser).',
+        description: 'Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, rewireConnection, cleanStaleConnections, replaceConnections, updateSettings, updateName, add/removeTag, activateWorkflow, deactivateWorkflow, transferWorkflow. Supports smart parameters (branch, case) for multi-output nodes. Full support for AI connections (ai_languageModel, ai_tool, ai_memory, ai_embedding, ai_vectorStore, ai_document, ai_textSplitter, ai_outputParser).',
         keyParameters: ['id', 'operations', 'continueOnError'],
         example: 'n8n_update_partial_workflow({id: "wf_123", operations: [{type: "rewireConnection", source: "IF", from: "Old", to: "New", branch: "true"}]})',
         performance: 'Fast (50-200ms)',
@@ -23,7 +23,8 @@ exports.n8nUpdatePartialWorkflowDoc = {
             'Batch AI component connections for atomic updates',
             'Auto-sanitization: ALL nodes auto-fixed during updates (operator structures, missing metadata)',
             'Node renames automatically update all connection references - no manual connection operations needed',
-            'Activate/deactivate workflows: Use activateWorkflow/deactivateWorkflow operations (requires activatable triggers like webhook/schedule)'
+            'Activate/deactivate workflows: Use activateWorkflow/deactivateWorkflow operations (requires activatable triggers like webhook/schedule)',
+            'Transfer workflows between projects: Use transferWorkflow with destinationProjectId (enterprise feature)'
         ]
     },
     full: {
@@ -56,6 +57,9 @@ exports.n8nUpdatePartialWorkflowDoc = {
 - **activateWorkflow**: Activate the workflow to enable automatic execution via triggers
 - **deactivateWorkflow**: Deactivate the workflow to prevent automatic execution
 
+### Project Management Operations (1 type):
+- **transferWorkflow**: Transfer the workflow to a different project. Requires \`destinationProjectId\`. Enterprise/cloud feature.
+
 ## Smart Parameters for Multi-Output Nodes
 
 For **IF nodes**, use semantic 'branch' parameter instead of technical sourceIndex:
@@ -346,7 +350,10 @@ n8n_update_partial_workflow({
             '// Migrate from deprecated continueOnFail to onError\nn8n_update_partial_workflow({id: "rm2", operations: [{type: "updateNode", nodeName: "HTTP Request", updates: {continueOnFail: null, onError: "continueErrorOutput"}}]})',
             '// Remove nested property\nn8n_update_partial_workflow({id: "rm3", operations: [{type: "updateNode", nodeName: "API Request", updates: {"parameters.authentication": null}}]})',
             '// Remove multiple properties\nn8n_update_partial_workflow({id: "rm4", operations: [{type: "updateNode", nodeName: "Data Processor", updates: {continueOnFail: null, alwaysOutputData: null, "parameters.legacy_option": null}}]})',
-            '// Remove entire array property\nn8n_update_partial_workflow({id: "rm5", operations: [{type: "updateNode", nodeName: "HTTP Request", updates: {"parameters.headers": null}}]})'
+            '// Remove entire array property\nn8n_update_partial_workflow({id: "rm5", operations: [{type: "updateNode", nodeName: "HTTP Request", updates: {"parameters.headers": null}}]})',
+            '\n// ============ PROJECT TRANSFER EXAMPLES ============',
+            '// Transfer workflow to a different project\nn8n_update_partial_workflow({id: "tf1", operations: [{type: "transferWorkflow", destinationProjectId: "project-abc-123"}]})',
+            '// Transfer and activate in one call\nn8n_update_partial_workflow({id: "tf2", operations: [{type: "transferWorkflow", destinationProjectId: "project-abc-123"}, {type: "activateWorkflow"}]})'
         ],
         useCases: [
             'Rewire connections when replacing nodes',
@@ -364,7 +371,8 @@ n8n_update_partial_workflow({
             'Add fallback language models to AI Agents',
             'Configure Vector Store retrieval systems',
             'Swap language models in existing AI workflows',
-            'Batch-update AI tool connections'
+            'Batch-update AI tool connections',
+            'Transfer workflows between team projects (enterprise)'
         ],
         performance: 'Very fast - typically 50-200ms. Much faster than full updates as only changes are processed.',
         bestPractices: [

dist/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.js.map

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dist/mcp/tools-n8n-manager.js

@@ -137,7 +137,7 @@ exports.n8nManagementTools = [
     },
     {
         name: 'n8n_update_partial_workflow',
-        description: `Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, updateSettings, updateName, add/removeTag. See tools_documentation("n8n_update_partial_workflow", "full") for details.`,
+        description: `Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, updateSettings, updateName, add/removeTag, activate/deactivateWorkflow, transferWorkflow. See tools_documentation("n8n_update_partial_workflow", "full") for details.`,
         inputSchema: {
             type: 'object',
             additionalProperties: true,

dist/services/n8n-api-client.d.ts

@@ -20,6 +20,7 @@ export declare class N8nApiClient {
     getWorkflow(id: string): Promise<Workflow>;
     updateWorkflow(id: string, workflow: Partial<Workflow>): Promise<Workflow>;
     deleteWorkflow(id: string): Promise<Workflow>;
+    transferWorkflow(id: string, destinationProjectId: string): Promise<void>;
     activateWorkflow(id: string): Promise<Workflow>;
     deactivateWorkflow(id: string): Promise<Workflow>;
     listWorkflows(params?: WorkflowListParams): Promise<WorkflowListResponse>;

dist/services/n8n-api-client.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"n8n-api-client.d.ts","sourceRoot":"","sources":["../../src/services/n8n-api-client.ts"],"names":[],"mappings":"AAEA,OAAO,EACL,QAAQ,EACR,kBAAkB,EAClB,oBAAoB,EACpB,SAAS,EACT,mBAAmB,EACnB,qBAAqB,EACrB,UAAU,EACV,oBAAoB,EACpB,sBAAsB,EACtB,GAAG,EACH,aAAa,EACb,eAAe,EACf,mBAAmB,EACnB,cAAc,EACd,QAAQ,EACR,cAAc,EAGd,mBAAmB,EACnB,uBAAuB,EACvB,uBAAuB,EACxB,MAAM,kBAAkB,CAAC;AAS1B,MAAM,WAAW,kBAAkB;IACjC,OAAO,EAAE,MAAM,CAAC;IAChB,MAAM,EAAE,MAAM,CAAC;IACf,OAAO,CAAC,EAAE,MAAM,CAAC;IACjB,UAAU,CAAC,EAAE,MAAM,CAAC;CACrB;AAED,qBAAa,YAAY;IACvB,OAAO,CAAC,MAAM,CAAgB;IAC9B,OAAO,CAAC,UAAU,CAAS;IAC3B,OAAO,CAAC,OAAO,CAAS;IACxB,OAAO,CAAC,WAAW,CAA+B;IAClD,OAAO,CAAC,cAAc,CAA+C;gBAEzD,MAAM,EAAE,kBAAkB;IAqDhC,UAAU,IAAI,OAAO,CAAC,cAAc,GAAG,IAAI,CAAC;YAyBpC,gBAAgB;IAa9B,oBAAoB,IAAI,cAAc,GAAG,IAAI;IAKvC,WAAW,IAAI,OAAO,CAAC,mBAAmB,CAAC;IA6C3C,cAAc,CAAC,QAAQ,EAAE,OAAO,CAAC,QAAQ,CAAC,GAAG,OAAO,CAAC,QAAQ,CAAC;IAU9D,WAAW,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,QAAQ,CAAC;IAS1C,cAAc,CAAC,EAAE,EAAE,MAAM,EAAE,QAAQ,EAAE,OAAO,CAAC,QAAQ,CAAC,GAAG,OAAO,CAAC,QAAQ,CAAC;IAsC1E,cAAc,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,QAAQ,CAAC;IAS7C,gBAAgB,CAAC,EAAE,EAAE,MAAM,EAAE,oBAAoB,EAAE,MAAM,GAAG,OAAO,CAAC,IAAI,CAAC;IAQzE,gBAAgB,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,QAAQ,CAAC;IAS/C,kBAAkB,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,QAAQ,CAAC;IAsBjD,aAAa,CAAC,MAAM,GAAE,kBAAuB,GAAG,OAAO,CAAC,oBAAoB,CAAC;IAU7E,YAAY,CAAC,EAAE,EAAE,MAAM,EAAE,WAAW,UAAQ,GAAG,OAAO,CAAC,SAAS,CAAC;IAwBjE,cAAc,CAAC,MAAM,GAAE,mBAAwB,GAAG,OAAO,CAAC,qBAAqB,CAAC;IAShF,eAAe,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,IAAI,CAAC;IAS1C,cAAc,CAAC,OAAO,EAAE,cAAc,GAAG,OAAO,CAAC,GAAG,CAAC;IAiErD,eAAe,CAAC,MAAM,GAAE,oBAAyB,GAAG,OAAO,CAAC,sBAAsB,CAAC;IASnF,aAAa,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,UAAU,CAAC;IAS9C,gBAAgB,CAAC,UAAU,EAAE,OAAO,CAAC,UAAU,CAAC,GAAG,OAAO,CAAC,UAAU,CAAC;IAStE,gBAAgB,CAAC,EAAE,EAAE,MAAM,EAAE,UAAU,EAAE,OAAO,CAAC,UAAU,CAAC,GAAG,OAAO,CAAC,UAAU,CAAC;IASlF,gBAAgB,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,IAAI,CAAC;IAsB3C,QAAQ,CAAC,MAAM,GAAE,aAAkB,GAAG,OAAO,CAAC,eAAe,CAAC;IAS9D,SAAS,CAAC,GAAG,EAAE,OAAO,CAAC,GAAG,CAAC,GAAG,OAAO,CAAC,GAAG,CAAC;IAS1C,SAAS,CAAC,EAAE,EAAE,MAAM,EAAE,GAAG,EAAE,OAAO,CAAC,GAAG,CAAC,GAAG,OAAO,CAAC,GAAG,CAAC;IAStD,SAAS,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,IAAI,CAAC;IAQpC,kBAAkB,CAAC,UAAU,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,GAAG,OAAO,CAAC,GAAG,EAAE,CAAC;IAUxE,sBAAsB,IAAI,OAAO,CAAC,mBAAmB,CAAC;IAStD,iBAAiB,CAAC,KAAK,UAAQ,GAAG,OAAO,CAAC,uBAAuB,CAAC;IASlE,iBAAiB,CACrB,OAAO,EAAE,MAAM,EACf,SAAS,CAAC,EAAE,MAAM,EAAE,GACnB,OAAO,CAAC,uBAAuB,CAAC;IAa7B,YAAY,IAAI,OAAO,CAAC,QAAQ,EAAE,CAAC;IAWnC,cAAc,CAAC,QAAQ,EAAE,OAAO,CAAC,QAAQ,CAAC,GAAG,OAAO,CAAC,QAAQ,CAAC;IAS9D,cAAc,CAAC,EAAE,EAAE,MAAM,EAAE,QAAQ,EAAE,OAAO,CAAC,QAAQ,CAAC,GAAG,OAAO,CAAC,QAAQ,CAAC;IAS1E,cAAc,CAAC,EAAE,EAAE,MAAM,GAAG,OAAO,CAAC,IAAI,CAAC;IAiB/C,OAAO,CAAC,oBAAoB;CAmC7B"}

dist/services/n8n-api-client.js

@@ -194,6 +194,14 @@ class N8nApiClient {
             throw (0, n8n_errors_1.handleN8nApiError)(error);
         }
     }
+    async transferWorkflow(id, destinationProjectId) {
+        try {
+            await this.client.put(`/workflows/${id}/transfer`, { destinationProjectId });
+        }
+        catch (error) {
+            throw (0, n8n_errors_1.handleN8nApiError)(error);
+        }
+    }
     async activateWorkflow(id) {
         try {
             const response = await this.client.post(`/workflows/${id}/activate`, {});

dist/services/workflow-diff-engine.d.ts

@@ -7,6 +7,7 @@ export declare class WorkflowDiffEngine {
     private removedNodeNames;
     private tagsToAdd;
     private tagsToRemove;
+    private transferToProjectId;
     applyDiff(workflow: Workflow, request: WorkflowDiffRequest): Promise<WorkflowDiffResult>;
     private validateOperation;
     private applyOperation;
@@ -36,6 +37,8 @@ export declare class WorkflowDiffEngine {
     private validateDeactivateWorkflow;
     private applyActivateWorkflow;
     private applyDeactivateWorkflow;
+    private validateTransferWorkflow;
+    private applyTransferWorkflow;
     private validateCleanStaleConnections;
     private validateReplaceConnections;
     private applyCleanStaleConnections;

dist/services/workflow-diff-engine.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"workflow-diff-engine.d.ts","sourceRoot":"","sources":["../../src/services/workflow-diff-engine.ts"],"names":[],"mappings":"AAMA,OAAO,EAEL,mBAAmB,EACnB,kBAAkB,EAuBnB,MAAM,wBAAwB,CAAC;AAChC,OAAO,EAAE,QAAQ,EAAoC,MAAM,kBAAkB,CAAC;AAY9E,qBAAa,kBAAkB;IAE7B,OAAO,CAAC,SAAS,CAAkC;IAEnD,OAAO,CAAC,QAAQ,CAAqC;IAErD,OAAO,CAAC,eAAe,CAAqB;IAE5C,OAAO,CAAC,gBAAgB,CAAqB;IAE7C,OAAO,CAAC,SAAS,CAAgB;IACjC,OAAO,CAAC,YAAY,CAAgB;IAEpC,OAAO,CAAC,mBAAmB,CAAqB;IAK1C,SAAS,CACb,QAAQ,EAAE,QAAQ,EAClB,OAAO,EAAE,mBAAmB,GAC3B,OAAO,CAAC,kBAAkB,CAAC;IAgO9B,OAAO,CAAC,iBAAiB;IA0CzB,OAAO,CAAC,cAAc;IA4DtB,OAAO,CAAC,eAAe;IAwBvB,OAAO,CAAC,kBAAkB;IAuB1B,OAAO,CAAC,kBAAkB;IAoC1B,OAAO,CAAC,gBAAgB;IAQxB,OAAO,CAAC,kBAAkB;IAU1B,OAAO,CAAC,qBAAqB;IAkD7B,OAAO,CAAC,wBAAwB;IA6ChC,OAAO,CAAC,wBAAwB;IAmDhC,OAAO,CAAC,YAAY;IA4BpB,OAAO,CAAC,eAAe;IAwCvB,OAAO,CAAC,eAAe;IA0BvB,OAAO,CAAC,aAAa;IAOrB,OAAO,CAAC,eAAe;IAOvB,OAAO,CAAC,gBAAgB;IAWxB,OAAO,CAAC,sBAAsB;IAwD9B,OAAO,CAAC,kBAAkB;IA6C1B,OAAO,CAAC,qBAAqB;IAuC7B,OAAO,CAAC,qBAAqB;IA0B7B,OAAO,CAAC,mBAAmB;IAW3B,OAAO,CAAC,eAAe;IAIvB,OAAO,CAAC,WAAW;IAYnB,OAAO,CAAC,cAAc;IAatB,OAAO,CAAC,wBAAwB;IAchC,OAAO,CAAC,0BAA0B;IAMlC,OAAO,CAAC,qBAAqB;IAM7B,OAAO,CAAC,uBAAuB;IAO/B,OAAO,CAAC,wBAAwB;IAOhC,OAAO,CAAC,qBAAqB;IAK7B,OAAO,CAAC,6BAA6B;IAKrC,OAAO,CAAC,0BAA0B;IA0BlC,OAAO,CAAC,0BAA0B;IA+ElC,OAAO,CAAC,uBAAuB;IAe/B,OAAO,CAAC,0BAA0B;IAmElC,OAAO,CAAC,iBAAiB;IAkBzB,OAAO,CAAC,QAAQ;IAsChB,OAAO,CAAC,uBAAuB;IAW/B,OAAO,CAAC,iBAAiB;CAoB1B"}

dist/services/workflow-diff-engine.js

@@ -23,6 +23,7 @@ class WorkflowDiffEngine {
             this.removedNodeNames.clear();
             this.tagsToAdd = [];
             this.tagsToRemove = [];
+            this.transferToProjectId = undefined;
             const workflowCopy = JSON.parse(JSON.stringify(workflow));
             const nodeOperationTypes = ['addNode', 'removeNode', 'updateNode', 'moveNode', 'enableNode', 'disableNode'];
             const nodeOperations = [];
@@ -81,6 +82,10 @@ class WorkflowDiffEngine {
                         failed: failedIndices
                     };
                 }
+                const shouldActivate = workflowCopy._shouldActivate === true;
+                const shouldDeactivate = workflowCopy._shouldDeactivate === true;
+                delete workflowCopy._shouldActivate;
+                delete workflowCopy._shouldDeactivate;
                 const success = appliedIndices.length > 0;
                 return {
                     success,
@@ -91,8 +96,11 @@ class WorkflowDiffEngine {
                     warnings: this.warnings.length > 0 ? this.warnings : undefined,
                     applied: appliedIndices,
                     failed: failedIndices,
+                    shouldActivate: shouldActivate || undefined,
+                    shouldDeactivate: shouldDeactivate || undefined,
                     tagsToAdd: this.tagsToAdd.length > 0 ? this.tagsToAdd : undefined,
-                    tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined
+                    tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined,
+                    transferToProjectId: this.transferToProjectId || undefined
                 };
             }
             else {
@@ -181,7 +189,8 @@ class WorkflowDiffEngine {
                     shouldActivate: shouldActivate || undefined,
                     shouldDeactivate: shouldDeactivate || undefined,
                     tagsToAdd: this.tagsToAdd.length > 0 ? this.tagsToAdd : undefined,
-                    tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined
+                    tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined,
+                    transferToProjectId: this.transferToProjectId || undefined
                 };
             }
         }
@@ -220,6 +229,8 @@ class WorkflowDiffEngine {
             case 'addTag':
             case 'removeTag':
                 return null;
+            case 'transferWorkflow':
+                return this.validateTransferWorkflow(workflow, operation);
             case 'activateWorkflow':
                 return this.validateActivateWorkflow(workflow, operation);
             case 'deactivateWorkflow':
@@ -285,6 +296,9 @@ class WorkflowDiffEngine {
             case 'replaceConnections':
                 this.applyReplaceConnections(workflow, operation);
                 break;
+            case 'transferWorkflow':
+                this.applyTransferWorkflow(workflow, operation);
+                break;
         }
     }
     validateAddNode(workflow, operation) {
@@ -699,6 +713,15 @@ class WorkflowDiffEngine {
     applyDeactivateWorkflow(workflow, operation) {
         workflow._shouldDeactivate = true;
     }
+    validateTransferWorkflow(_workflow, operation) {
+        if (!operation.destinationProjectId) {
+            return 'transferWorkflow requires a non-empty destinationProjectId string';
+        }
+        return null;
+    }
+    applyTransferWorkflow(_workflow, operation) {
+        this.transferToProjectId = operation.destinationProjectId;
+    }
     validateCleanStaleConnections(workflow, operation) {
         return null;
     }
@@ -806,9 +829,10 @@ class WorkflowDiffEngine {
                     for (let connIndex = 0; connIndex < connectionsAtIndex.length; connIndex++) {
                         const connection = connectionsAtIndex[connIndex];
                         if (renames.has(connection.node)) {
+                            const oldTargetName = connection.node;
                             const newTargetName = renames.get(connection.node);
                             connection.node = newTargetName;
-                            logger.debug(`Updated connection: ${sourceName}[${outputType}][${outputIndex}][${connIndex}].node: "${connection.node}" → "${newTargetName}"`);
+                            logger.debug(`Updated connection: ${sourceName}[${outputType}][${outputIndex}][${connIndex}].node: "${oldTargetName}" → "${newTargetName}"`);
                         }
                     }
                 }

dist/types/workflow-diff.d.ts

@@ -94,6 +94,10 @@ export interface ActivateWorkflowOperation extends DiffOperation {
 export interface DeactivateWorkflowOperation extends DiffOperation {
     type: 'deactivateWorkflow';
 }
+export interface TransferWorkflowOperation extends DiffOperation {
+    type: 'transferWorkflow';
+    destinationProjectId: string;
+}
 export interface CleanStaleConnectionsOperation extends DiffOperation {
     type: 'cleanStaleConnections';
     dryRun?: boolean;
@@ -110,7 +114,7 @@ export interface ReplaceConnectionsOperation extends DiffOperation {
         };
     };
 }
-export type WorkflowDiffOperation = AddNodeOperation | RemoveNodeOperation | UpdateNodeOperation | MoveNodeOperation | EnableNodeOperation | DisableNodeOperation | AddConnectionOperation | RemoveConnectionOperation | RewireConnectionOperation | UpdateSettingsOperation | UpdateNameOperation | AddTagOperation | RemoveTagOperation | ActivateWorkflowOperation | DeactivateWorkflowOperation | CleanStaleConnectionsOperation | ReplaceConnectionsOperation;
+export type WorkflowDiffOperation = AddNodeOperation | RemoveNodeOperation | UpdateNodeOperation | MoveNodeOperation | EnableNodeOperation | DisableNodeOperation | AddConnectionOperation | RemoveConnectionOperation | RewireConnectionOperation | UpdateSettingsOperation | UpdateNameOperation | AddTagOperation | RemoveTagOperation | ActivateWorkflowOperation | DeactivateWorkflowOperation | CleanStaleConnectionsOperation | ReplaceConnectionsOperation | TransferWorkflowOperation;
 export interface WorkflowDiffRequest {
     id: string;
     operations: WorkflowDiffOperation[];
@@ -139,6 +143,7 @@ export interface WorkflowDiffResult {
     shouldDeactivate?: boolean;
     tagsToAdd?: string[];
     tagsToRemove?: string[];
+    transferToProjectId?: string;
 }
 export interface NodeReference {
     id?: string;

dist/types/workflow-diff.d.ts.map

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dist/types/workflow-diff.js.map

@@ -1 +1 @@
-{"version":3,"file":"workflow-diff.js","sourceRoot":"","sources":["../../src/types/workflow-diff.ts"],"names":[],"mappings":";;AA2MA,0CAIC;AAED,sDAGC;AAED,kDAGC;AAdD,SAAgB,eAAe,CAAC,EAAyB;IAGvD,OAAO,CAAC,SAAS,EAAE,YAAY,EAAE,YAAY,EAAE,UAAU,EAAE,YAAY,EAAE,aAAa,CAAC,CAAC,QAAQ,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;AAC5G,CAAC;AAED,SAAgB,qBAAqB,CAAC,EAAyB;IAE7D,OAAO,CAAC,eAAe,EAAE,kBAAkB,EAAE,kBAAkB,EAAE,uBAAuB,EAAE,oBAAoB,CAAC,CAAC,QAAQ,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;AACpI,CAAC;AAED,SAAgB,mBAAmB,CAAC,EAAyB;IAE3D,OAAO,CAAC,gBAAgB,EAAE,YAAY,EAAE,QAAQ,EAAE,WAAW,CAAC,CAAC,QAAQ,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;AACnF,CAAC"}
+{"version":3,"file":"workflow-diff.js","sourceRoot":"","sources":["../../src/types/workflow-diff.ts"],"names":[],"mappings":";;AAkNA,0CAIC;AAED,sDAGC;AAED,kDAGC;AAdD,SAAgB,eAAe,CAAC,EAAyB;IAGvD,OAAO,CAAC,SAAS,EAAE,YAAY,EAAE,YAAY,EAAE,UAAU,EAAE,YAAY,EAAE,aAAa,CAAC,CAAC,QAAQ,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;AAC5G,CAAC;AAED,SAAgB,qBAAqB,CAAC,EAAyB;IAE7D,OAAO,CAAC,eAAe,EAAE,kBAAkB,EAAE,kBAAkB,EAAE,uBAAuB,EAAE,oBAAoB,CAAC,CAAC,QAAQ,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;AACpI,CAAC;AAED,SAAgB,mBAAmB,CAAC,EAAyB;IAE3D,OAAO,CAAC,gBAAgB,EAAE,YAAY,EAAE,QAAQ,EAAE,WAAW,CAAC,CAAC,QAAQ,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;AACnF,CAAC"}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp",
-  "version": "2.37.3",
+  "version": "2.38.0",
   "description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -153,16 +153,16 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.27.1",
-    "@n8n/n8n-nodes-langchain": "^2.11.2",
+    "@n8n/n8n-nodes-langchain": "^2.12.0",
     "@supabase/supabase-js": "^2.57.4",
     "dotenv": "^16.5.0",
     "express": "^5.1.0",
     "express-rate-limit": "^7.1.5",
     "form-data": "^4.0.5",
     "lru-cache": "^11.2.1",
-    "n8n": "^2.11.4",
+    "n8n": "^2.12.3",
-    "n8n-core": "^2.11.1",
+    "n8n-core": "^2.12.0",
-    "n8n-workflow": "^2.11.1",
+    "n8n-workflow": "^2.12.0",
     "openai": "^4.77.0",
     "sql.js": "^1.13.0",
     "tslib": "^2.6.2",

src/mcp/handlers-workflow-diff.ts

@@ -68,6 +68,8 @@ const workflowDiffSchema = z.object({
     settings: z.any().optional(),
     name: z.string().optional(),
     tag: z.string().optional(),
+    // Transfer operation
+    destinationProjectId: z.string().min(1).optional(),
     // Aliases: LLMs often use "id" instead of "nodeId" — accept both
     id: z.string().optional(),
   }).transform((op) => {
@@ -370,6 +372,26 @@ export async function handleUpdatePartialWorkflow(
         }
       }
 
+      // Handle project transfer if requested (before activation so workflow is in target project first)
+      let transferMessage = '';
+      if (diffResult.transferToProjectId) {
+        try {
+          await client.transferWorkflow(input.id, diffResult.transferToProjectId);
+          transferMessage = ` Workflow transferred to project ${diffResult.transferToProjectId}.`;
+        } catch (transferError) {
+          logger.error('Failed to transfer workflow to project', transferError);
+          return {
+            success: false,
+            saved: true,
+            error: 'Workflow updated successfully but project transfer failed',
+            details: {
+              workflowUpdated: true,
+              transferError: transferError instanceof Error ? transferError.message : 'Unknown error'
+            }
+          };
+        }
+      }
+
       // Handle activation/deactivation if requested
       let finalWorkflow = updatedWorkflow;
       let activationMessage = '';
@@ -454,7 +476,7 @@ export async function handleUpdatePartialWorkflow(
           nodeCount: finalWorkflow.nodes?.length || 0,
           operationsApplied: diffResult.operationsApplied
         },
-        message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${activationMessage} Use n8n_get_workflow with mode 'structure' to verify current state.`,
+        message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${transferMessage}${activationMessage} Use n8n_get_workflow with mode 'structure' to verify current state.`,
         details: {
           applied: diffResult.applied,
           failed: diffResult.failed,
@@ -559,6 +581,8 @@ function inferIntentFromOperations(operations: any[]): string {
         return 'Activate workflow';
       case 'deactivateWorkflow':
         return 'Deactivate workflow';
+      case 'transferWorkflow':
+        return `Transfer workflow to project ${op.destinationProjectId || ''}`.trim();
       default:
         return `Workflow ${op.type}`;
     }

src/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.ts

@@ -4,7 +4,7 @@ export const n8nUpdatePartialWorkflowDoc: ToolDocumentation = {
   name: 'n8n_update_partial_workflow',
   category: 'workflow_management',
   essentials: {
-    description: 'Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, rewireConnection, cleanStaleConnections, replaceConnections, updateSettings, updateName, add/removeTag, activateWorkflow, deactivateWorkflow. Supports smart parameters (branch, case) for multi-output nodes. Full support for AI connections (ai_languageModel, ai_tool, ai_memory, ai_embedding, ai_vectorStore, ai_document, ai_textSplitter, ai_outputParser).',
+    description: 'Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, rewireConnection, cleanStaleConnections, replaceConnections, updateSettings, updateName, add/removeTag, activateWorkflow, deactivateWorkflow, transferWorkflow. Supports smart parameters (branch, case) for multi-output nodes. Full support for AI connections (ai_languageModel, ai_tool, ai_memory, ai_embedding, ai_vectorStore, ai_document, ai_textSplitter, ai_outputParser).',
     keyParameters: ['id', 'operations', 'continueOnError'],
     example: 'n8n_update_partial_workflow({id: "wf_123", operations: [{type: "rewireConnection", source: "IF", from: "Old", to: "New", branch: "true"}]})',
     performance: 'Fast (50-200ms)',
@@ -22,7 +22,8 @@ export const n8nUpdatePartialWorkflowDoc: ToolDocumentation = {
       'Batch AI component connections for atomic updates',
       'Auto-sanitization: ALL nodes auto-fixed during updates (operator structures, missing metadata)',
       'Node renames automatically update all connection references - no manual connection operations needed',
-      'Activate/deactivate workflows: Use activateWorkflow/deactivateWorkflow operations (requires activatable triggers like webhook/schedule)'
+      'Activate/deactivate workflows: Use activateWorkflow/deactivateWorkflow operations (requires activatable triggers like webhook/schedule)',
+      'Transfer workflows between projects: Use transferWorkflow with destinationProjectId (enterprise feature)'
     ]
   },
   full: {
@@ -55,6 +56,9 @@ export const n8nUpdatePartialWorkflowDoc: ToolDocumentation = {
 - **activateWorkflow**: Activate the workflow to enable automatic execution via triggers
 - **deactivateWorkflow**: Deactivate the workflow to prevent automatic execution
 
+### Project Management Operations (1 type):
+- **transferWorkflow**: Transfer the workflow to a different project. Requires \`destinationProjectId\`. Enterprise/cloud feature.
+
 ## Smart Parameters for Multi-Output Nodes
 
 For **IF nodes**, use semantic 'branch' parameter instead of technical sourceIndex:
@@ -345,7 +349,10 @@ n8n_update_partial_workflow({
       '// Migrate from deprecated continueOnFail to onError\nn8n_update_partial_workflow({id: "rm2", operations: [{type: "updateNode", nodeName: "HTTP Request", updates: {continueOnFail: null, onError: "continueErrorOutput"}}]})',
       '// Remove nested property\nn8n_update_partial_workflow({id: "rm3", operations: [{type: "updateNode", nodeName: "API Request", updates: {"parameters.authentication": null}}]})',
       '// Remove multiple properties\nn8n_update_partial_workflow({id: "rm4", operations: [{type: "updateNode", nodeName: "Data Processor", updates: {continueOnFail: null, alwaysOutputData: null, "parameters.legacy_option": null}}]})',
-      '// Remove entire array property\nn8n_update_partial_workflow({id: "rm5", operations: [{type: "updateNode", nodeName: "HTTP Request", updates: {"parameters.headers": null}}]})'
+      '// Remove entire array property\nn8n_update_partial_workflow({id: "rm5", operations: [{type: "updateNode", nodeName: "HTTP Request", updates: {"parameters.headers": null}}]})',
+      '\n// ============ PROJECT TRANSFER EXAMPLES ============',
+      '// Transfer workflow to a different project\nn8n_update_partial_workflow({id: "tf1", operations: [{type: "transferWorkflow", destinationProjectId: "project-abc-123"}]})',
+      '// Transfer and activate in one call\nn8n_update_partial_workflow({id: "tf2", operations: [{type: "transferWorkflow", destinationProjectId: "project-abc-123"}, {type: "activateWorkflow"}]})'
     ],
     useCases: [
       'Rewire connections when replacing nodes',
@@ -363,7 +370,8 @@ n8n_update_partial_workflow({
       'Add fallback language models to AI Agents',
       'Configure Vector Store retrieval systems',
       'Swap language models in existing AI workflows',
-      'Batch-update AI tool connections'
+      'Batch-update AI tool connections',
+      'Transfer workflows between team projects (enterprise)'
     ],
     performance: 'Very fast - typically 50-200ms. Much faster than full updates as only changes are processed.',
     bestPractices: [

src/mcp/tools-n8n-manager.ts

@@ -143,7 +143,7 @@ export const n8nManagementTools: ToolDefinition[] = [
   },
   {
     name: 'n8n_update_partial_workflow',
-    description: `Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, updateSettings, updateName, add/removeTag. See tools_documentation("n8n_update_partial_workflow", "full") for details.`,
+    description: `Update workflow incrementally with diff operations. Types: addNode, removeNode, updateNode, moveNode, enable/disableNode, addConnection, removeConnection, updateSettings, updateName, add/removeTag, activate/deactivateWorkflow, transferWorkflow. See tools_documentation("n8n_update_partial_workflow", "full") for details.`,
     inputSchema: {
       type: 'object',
       additionalProperties: true,  // Allow any extra properties Claude Desktop might add

src/services/n8n-api-client.ts

@@ -252,6 +252,14 @@ export class N8nApiClient {
     }
   }
 
+  async transferWorkflow(id: string, destinationProjectId: string): Promise<void> {
+    try {
+      await this.client.put(`/workflows/${id}/transfer`, { destinationProjectId });
+    } catch (error) {
+      throw handleN8nApiError(error);
+    }
+  }
+
   async activateWorkflow(id: string): Promise<Workflow> {
     try {
       const response = await this.client.post(`/workflows/${id}/activate`, {});

src/services/workflow-diff-engine.ts

@@ -28,7 +28,8 @@ import {
   ActivateWorkflowOperation,
   DeactivateWorkflowOperation,
   CleanStaleConnectionsOperation,
-  ReplaceConnectionsOperation
+  ReplaceConnectionsOperation,
+  TransferWorkflowOperation
 } from '../types/workflow-diff';
 import { Workflow, WorkflowNode, WorkflowConnection } from '../types/n8n-api';
 import { Logger } from '../utils/logger';
@@ -54,6 +55,8 @@ export class WorkflowDiffEngine {
   // Track tag operations for dedicated API calls
   private tagsToAdd: string[] = [];
   private tagsToRemove: string[] = [];
+  // Track transfer operation for dedicated API call
+  private transferToProjectId: string | undefined;
 
   /**
    * Apply diff operations to a workflow
@@ -70,6 +73,7 @@ export class WorkflowDiffEngine {
       this.removedNodeNames.clear();
       this.tagsToAdd = [];
       this.tagsToRemove = [];
+      this.transferToProjectId = undefined;
 
       // Clone workflow to avoid modifying original
       const workflowCopy = JSON.parse(JSON.stringify(workflow));
@@ -141,6 +145,12 @@ export class WorkflowDiffEngine {
           };
         }
 
+        // Extract and clean up activation flags (same as atomic mode)
+        const shouldActivate = (workflowCopy as any)._shouldActivate === true;
+        const shouldDeactivate = (workflowCopy as any)._shouldDeactivate === true;
+        delete (workflowCopy as any)._shouldActivate;
+        delete (workflowCopy as any)._shouldDeactivate;
+
         const success = appliedIndices.length > 0;
         return {
           success,
@@ -151,8 +161,11 @@ export class WorkflowDiffEngine {
           warnings: this.warnings.length > 0 ? this.warnings : undefined,
           applied: appliedIndices,
           failed: failedIndices,
+          shouldActivate: shouldActivate || undefined,
+          shouldDeactivate: shouldDeactivate || undefined,
           tagsToAdd: this.tagsToAdd.length > 0 ? this.tagsToAdd : undefined,
-          tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined
+          tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined,
+          transferToProjectId: this.transferToProjectId || undefined
         };
       } else {
         // Atomic mode: all operations must succeed
@@ -256,7 +269,8 @@ export class WorkflowDiffEngine {
           shouldActivate: shouldActivate || undefined,
           shouldDeactivate: shouldDeactivate || undefined,
           tagsToAdd: this.tagsToAdd.length > 0 ? this.tagsToAdd : undefined,
-          tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined
+          tagsToRemove: this.tagsToRemove.length > 0 ? this.tagsToRemove : undefined,
+          transferToProjectId: this.transferToProjectId || undefined
         };
       }
     } catch (error) {
@@ -298,6 +312,8 @@ export class WorkflowDiffEngine {
       case 'addTag':
       case 'removeTag':
         return null; // These are always valid
+      case 'transferWorkflow':
+        return this.validateTransferWorkflow(workflow, operation as TransferWorkflowOperation);
       case 'activateWorkflow':
         return this.validateActivateWorkflow(workflow, operation);
       case 'deactivateWorkflow':
@@ -367,6 +383,9 @@ export class WorkflowDiffEngine {
       case 'replaceConnections':
         this.applyReplaceConnections(workflow, operation);
         break;
+      case 'transferWorkflow':
+        this.applyTransferWorkflow(workflow, operation as TransferWorkflowOperation);
+        break;
     }
   }
 
@@ -975,6 +994,18 @@ export class WorkflowDiffEngine {
     (workflow as any)._shouldDeactivate = true;
   }
 
+  // Transfer operation — uses dedicated API call (PUT /workflows/{id}/transfer)
+  private validateTransferWorkflow(_workflow: Workflow, operation: TransferWorkflowOperation): string | null {
+    if (!operation.destinationProjectId) {
+      return 'transferWorkflow requires a non-empty destinationProjectId string';
+    }
+    return null;
+  }
+
+  private applyTransferWorkflow(_workflow: Workflow, operation: TransferWorkflowOperation): void {
+    this.transferToProjectId = operation.destinationProjectId;
+  }
+
   // Connection cleanup operation validators
   private validateCleanStaleConnections(workflow: Workflow, operation: CleanStaleConnectionsOperation): string | null {
     // This operation is always valid - it just cleans up what it finds
@@ -1128,9 +1159,10 @@ export class WorkflowDiffEngine {
             const connection = connectionsAtIndex[connIndex];
             // Check if target node was renamed
             if (renames.has(connection.node)) {
+              const oldTargetName = connection.node;
               const newTargetName = renames.get(connection.node)!;
               connection.node = newTargetName;
-              logger.debug(`Updated connection: ${sourceName}[${outputType}][${outputIndex}][${connIndex}].node: "${connection.node}" → "${newTargetName}"`);
+              logger.debug(`Updated connection: ${sourceName}[${outputType}][${outputIndex}][${connIndex}].node: "${oldTargetName}" → "${newTargetName}"`);
             }
           }
         }

src/types/workflow-diff.ts

@@ -124,6 +124,11 @@ export interface DeactivateWorkflowOperation extends DiffOperation {
   // No additional properties needed - just deactivates the workflow
 }
 
+export interface TransferWorkflowOperation extends DiffOperation {
+  type: 'transferWorkflow';
+  destinationProjectId: string;
+}
+
 // Connection Cleanup Operations
 export interface CleanStaleConnectionsOperation extends DiffOperation {
   type: 'cleanStaleConnections';
@@ -161,7 +166,8 @@ export type WorkflowDiffOperation =
   | ActivateWorkflowOperation
   | DeactivateWorkflowOperation
   | CleanStaleConnectionsOperation
-  | ReplaceConnectionsOperation;
+  | ReplaceConnectionsOperation
+  | TransferWorkflowOperation;
 
 // Main diff request structure
 export interface WorkflowDiffRequest {
@@ -192,6 +198,7 @@ export interface WorkflowDiffResult {
   shouldDeactivate?: boolean; // Flag to deactivate workflow after update (for deactivateWorkflow operation)
   tagsToAdd?: string[];
   tagsToRemove?: string[];
+  transferToProjectId?: string; // For transferWorkflow operation - uses dedicated API call
 }
 
 // Helper type for node reference (supports both ID and name)

tests/unit/mcp/handlers-workflow-diff.test.ts

@@ -76,6 +76,7 @@ describe('handlers-workflow-diff', () => {
       listTags: vi.fn().mockResolvedValue({ data: [] }),
       createTag: vi.fn(),
       updateWorkflowTags: vi.fn().mockResolvedValue([]),
+      transferWorkflow: vi.fn().mockResolvedValue(undefined),
     };
 
     // Setup mock diff engine
@@ -1002,6 +1003,186 @@ describe('handlers-workflow-diff', () => {
       });
     });
 
+    describe('Project Transfer via Dedicated API', () => {
+      it('should call transferWorkflow when diffResult has transferToProjectId', async () => {
+        const testWorkflow = createTestWorkflow();
+        const updatedWorkflow = { ...testWorkflow };
+
+        mockApiClient.getWorkflow.mockResolvedValue(testWorkflow);
+        mockDiffEngine.applyDiff.mockResolvedValue({
+          success: true,
+          workflow: updatedWorkflow,
+          operationsApplied: 1,
+          message: 'Success',
+          errors: [],
+          transferToProjectId: 'project-abc-123',
+        });
+        mockApiClient.updateWorkflow.mockResolvedValue(updatedWorkflow);
+
+        const result = await handleUpdatePartialWorkflow({
+          id: 'test-workflow-id',
+          operations: [{ type: 'transferWorkflow', destinationProjectId: 'project-abc-123' }],
+        }, mockRepository);
+
+        expect(result.success).toBe(true);
+        expect(mockApiClient.transferWorkflow).toHaveBeenCalledWith('test-workflow-id', 'project-abc-123');
+        expect(result.message).toContain('transferred to project');
+      });
+
+      it('should NOT call transferWorkflow when transferToProjectId is absent', async () => {
+        const testWorkflow = createTestWorkflow();
+        const updatedWorkflow = { ...testWorkflow };
+
+        mockApiClient.getWorkflow.mockResolvedValue(testWorkflow);
+        mockDiffEngine.applyDiff.mockResolvedValue({
+          success: true,
+          workflow: updatedWorkflow,
+          operationsApplied: 1,
+          message: 'Success',
+          errors: [],
+        });
+        mockApiClient.updateWorkflow.mockResolvedValue(updatedWorkflow);
+
+        await handleUpdatePartialWorkflow({
+          id: 'test-workflow-id',
+          operations: [{ type: 'updateName', name: 'New Name' }],
+        }, mockRepository);
+
+        expect(mockApiClient.transferWorkflow).not.toHaveBeenCalled();
+      });
+
+      it('should return success false with saved true when transfer fails', async () => {
+        const testWorkflow = createTestWorkflow();
+        const updatedWorkflow = { ...testWorkflow };
+
+        mockApiClient.getWorkflow.mockResolvedValue(testWorkflow);
+        mockDiffEngine.applyDiff.mockResolvedValue({
+          success: true,
+          workflow: updatedWorkflow,
+          operationsApplied: 1,
+          message: 'Success',
+          errors: [],
+          transferToProjectId: 'project-bad-id',
+        });
+        mockApiClient.updateWorkflow.mockResolvedValue(updatedWorkflow);
+        mockApiClient.transferWorkflow.mockRejectedValue(new Error('Project not found'));
+
+        const result = await handleUpdatePartialWorkflow({
+          id: 'test-workflow-id',
+          operations: [{ type: 'transferWorkflow', destinationProjectId: 'project-bad-id' }],
+        }, mockRepository);
+
+        expect(result.success).toBe(false);
+        expect(result.saved).toBe(true);
+        expect(result.error).toBe('Workflow updated successfully but project transfer failed');
+        expect(result.details).toEqual({
+          workflowUpdated: true,
+          transferError: 'Project not found',
+        });
+      });
+
+      it('should return Unknown error when non-Error value is thrown during transfer', async () => {
+        const testWorkflow = createTestWorkflow();
+        const updatedWorkflow = { ...testWorkflow };
+
+        mockApiClient.getWorkflow.mockResolvedValue(testWorkflow);
+        mockDiffEngine.applyDiff.mockResolvedValue({
+          success: true,
+          workflow: updatedWorkflow,
+          operationsApplied: 1,
+          message: 'Success',
+          errors: [],
+          transferToProjectId: 'project-unknown',
+        });
+        mockApiClient.updateWorkflow.mockResolvedValue(updatedWorkflow);
+        mockApiClient.transferWorkflow.mockRejectedValue('string error');
+
+        const result = await handleUpdatePartialWorkflow({
+          id: 'test-workflow-id',
+          operations: [{ type: 'transferWorkflow', destinationProjectId: 'project-unknown' }],
+        }, mockRepository);
+
+        expect(result.success).toBe(false);
+        expect(result.saved).toBe(true);
+        expect(result.details).toEqual({
+          workflowUpdated: true,
+          transferError: 'Unknown error',
+        });
+      });
+
+      it('should call transferWorkflow BEFORE activateWorkflow', async () => {
+        const testWorkflow = createTestWorkflow({ active: false });
+        const updatedWorkflow = { ...testWorkflow, active: false };
+        const activatedWorkflow = { ...testWorkflow, active: true };
+
+        const callOrder: string[] = [];
+
+        mockApiClient.getWorkflow.mockResolvedValue(testWorkflow);
+        mockDiffEngine.applyDiff.mockResolvedValue({
+          success: true,
+          workflow: updatedWorkflow,
+          operationsApplied: 2,
+          message: 'Success',
+          errors: [],
+          transferToProjectId: 'project-target',
+          shouldActivate: true,
+        });
+        mockApiClient.updateWorkflow.mockResolvedValue(updatedWorkflow);
+        mockApiClient.transferWorkflow.mockImplementation(async () => {
+          callOrder.push('transfer');
+        });
+        mockApiClient.activateWorkflow = vi.fn().mockImplementation(async () => {
+          callOrder.push('activate');
+          return activatedWorkflow;
+        });
+
+        const result = await handleUpdatePartialWorkflow({
+          id: 'test-workflow-id',
+          operations: [
+            { type: 'transferWorkflow', destinationProjectId: 'project-target' },
+            { type: 'activateWorkflow' },
+          ],
+        }, mockRepository);
+
+        expect(result.success).toBe(true);
+        expect(mockApiClient.transferWorkflow).toHaveBeenCalledWith('test-workflow-id', 'project-target');
+        expect(mockApiClient.activateWorkflow).toHaveBeenCalledWith('test-workflow-id');
+        expect(callOrder).toEqual(['transfer', 'activate']);
+      });
+
+      it('should skip activation when transfer fails', async () => {
+        const testWorkflow = createTestWorkflow({ active: false });
+        const updatedWorkflow = { ...testWorkflow, active: false };
+
+        mockApiClient.getWorkflow.mockResolvedValue(testWorkflow);
+        mockDiffEngine.applyDiff.mockResolvedValue({
+          success: true,
+          workflow: updatedWorkflow,
+          operationsApplied: 2,
+          message: 'Success',
+          errors: [],
+          transferToProjectId: 'project-fail',
+          shouldActivate: true,
+        });
+        mockApiClient.updateWorkflow.mockResolvedValue(updatedWorkflow);
+        mockApiClient.transferWorkflow.mockRejectedValue(new Error('Transfer denied'));
+        mockApiClient.activateWorkflow = vi.fn();
+
+        const result = await handleUpdatePartialWorkflow({
+          id: 'test-workflow-id',
+          operations: [
+            { type: 'transferWorkflow', destinationProjectId: 'project-fail' },
+            { type: 'activateWorkflow' },
+          ],
+        }, mockRepository);
+
+        expect(result.success).toBe(false);
+        expect(result.saved).toBe(true);
+        expect(result.error).toBe('Workflow updated successfully but project transfer failed');
+        expect(mockApiClient.activateWorkflow).not.toHaveBeenCalled();
+      });
+    });
+
     describe('field name normalization', () => {
       it('should normalize "name" to "nodeName" for updateNode operations', async () => {
         const testWorkflow = createTestWorkflow();
@@ -1119,4 +1300,4 @@ describe('handlers-workflow-diff', () => {
       });
     });
   });
-});
+});

tests/unit/services/n8n-api-client.test.ts

@@ -1250,6 +1250,56 @@ describe('N8nApiClient', () => {
     });
   });
 
+  describe('transferWorkflow', () => {
+    beforeEach(() => {
+      client = new N8nApiClient(defaultConfig);
+    });
+
+    it('should transfer workflow successfully via PUT', async () => {
+      mockAxiosInstance.put.mockResolvedValue({ data: undefined });
+
+      await client.transferWorkflow('123', 'project-456');
+
+      expect(mockAxiosInstance.put).toHaveBeenCalledWith(
+        '/workflows/123/transfer',
+        { destinationProjectId: 'project-456' }
+      );
+    });
+
+    it('should throw N8nNotFoundError on 404', async () => {
+      const error = {
+        message: 'Request failed',
+        response: { status: 404, data: { message: 'Workflow not found' } }
+      };
+      await mockAxiosInstance.simulateError('put', error);
+
+      try {
+        await client.transferWorkflow('123', 'project-456');
+        expect.fail('Should have thrown an error');
+      } catch (err) {
+        expect(err).toBeInstanceOf(N8nNotFoundError);
+        expect((err as N8nNotFoundError).message).toContain('not found');
+        expect((err as N8nNotFoundError).statusCode).toBe(404);
+      }
+    });
+
+    it('should throw appropriate error on 403 forbidden', async () => {
+      const error = {
+        message: 'Request failed',
+        response: { status: 403, data: { message: 'Forbidden' } }
+      };
+      await mockAxiosInstance.simulateError('put', error);
+
+      try {
+        await client.transferWorkflow('123', 'project-456');
+        expect.fail('Should have thrown an error');
+      } catch (err) {
+        expect(err).toBeInstanceOf(N8nApiError);
+        expect((err as N8nApiError).statusCode).toBe(403);
+      }
+    });
+  });
+
   describe('interceptors', () => {
     let requestInterceptor: any;
     let responseInterceptor: any;
@@ -1317,4 +1367,4 @@ describe('N8nApiClient', () => {
       expect(result.message).toBe('Bad request');
     });
   });
-});
+});

tests/unit/services/workflow-diff-engine.test.ts

@@ -17,7 +17,8 @@ import {
   AddTagOperation,
   RemoveTagOperation,
   CleanStaleConnectionsOperation,
-  ReplaceConnectionsOperation
+  ReplaceConnectionsOperation,
+  TransferWorkflowOperation
 } from '@/types/workflow-diff';
 import { Workflow } from '@/types/n8n-api';
 
@@ -4989,4 +4990,151 @@ describe('WorkflowDiffEngine', () => {
       expect('nonExistent' in updatedNode).toBe(false);
     });
   });
-});
+
+  describe('transferWorkflow operation', () => {
+    it('should set transferToProjectId in result for valid transferWorkflow', async () => {
+      const operation: TransferWorkflowOperation = {
+        type: 'transferWorkflow',
+        destinationProjectId: 'project-abc-123'
+      };
+
+      const request: WorkflowDiffRequest = {
+        id: 'test-workflow',
+        operations: [operation]
+      };
+
+      const result = await diffEngine.applyDiff(baseWorkflow, request);
+
+      expect(result.success).toBe(true);
+      expect(result.transferToProjectId).toBe('project-abc-123');
+    });
+
+    it('should fail validation when destinationProjectId is empty', async () => {
+      const operation: TransferWorkflowOperation = {
+        type: 'transferWorkflow',
+        destinationProjectId: ''
+      };
+
+      const request: WorkflowDiffRequest = {
+        id: 'test-workflow',
+        operations: [operation]
+      };
+
+      const result = await diffEngine.applyDiff(baseWorkflow, request);
+
+      expect(result.success).toBe(false);
+      expect(result.errors).toBeDefined();
+      expect(result.errors![0].message).toContain('destinationProjectId');
+    });
+
+    it('should fail validation when destinationProjectId is undefined', async () => {
+      const operation = {
+        type: 'transferWorkflow',
+        destinationProjectId: undefined
+      } as any as TransferWorkflowOperation;
+
+      const request: WorkflowDiffRequest = {
+        id: 'test-workflow',
+        operations: [operation]
+      };
+
+      const result = await diffEngine.applyDiff(baseWorkflow, request);
+
+      expect(result.success).toBe(false);
+      expect(result.errors).toBeDefined();
+      expect(result.errors![0].message).toContain('destinationProjectId');
+    });
+
+    it('should not include transferToProjectId when no transferWorkflow operation is present', async () => {
+      const operation: UpdateNameOperation = {
+        type: 'updateName',
+        name: 'Renamed Workflow'
+      };
+
+      const request: WorkflowDiffRequest = {
+        id: 'test-workflow',
+        operations: [operation]
+      };
+
+      const result = await diffEngine.applyDiff(baseWorkflow, request);
+
+      expect(result.success).toBe(true);
+      expect(result.transferToProjectId).toBeUndefined();
+    });
+
+    it('should combine updateName and transferWorkflow operations', async () => {
+      const operations: WorkflowDiffOperation[] = [
+        {
+          type: 'updateName',
+          name: 'Transferred Workflow'
+        } as UpdateNameOperation,
+        {
+          type: 'transferWorkflow',
+          destinationProjectId: 'project-xyz-789'
+        } as TransferWorkflowOperation
+      ];
+
+      const request: WorkflowDiffRequest = {
+        id: 'test-workflow',
+        operations
+      };
+
+      const result = await diffEngine.applyDiff(baseWorkflow, request);
+
+      expect(result.success).toBe(true);
+      expect(result.operationsApplied).toBe(2);
+      expect(result.workflow!.name).toBe('Transferred Workflow');
+      expect(result.transferToProjectId).toBe('project-xyz-789');
+    });
+
+    it('should combine removeTag and transferWorkflow in continueOnError mode', async () => {
+      const operations: WorkflowDiffOperation[] = [
+        {
+          type: 'removeTag',
+          tag: 'non-existent-tag'
+        } as RemoveTagOperation,
+        {
+          type: 'transferWorkflow',
+          destinationProjectId: 'project-target-456'
+        } as TransferWorkflowOperation
+      ];
+
+      const request: WorkflowDiffRequest = {
+        id: 'test-workflow',
+        operations,
+        continueOnError: true
+      };
+
+      const result = await diffEngine.applyDiff(baseWorkflow, request);
+
+      expect(result.success).toBe(true);
+      expect(result.transferToProjectId).toBe('project-target-456');
+    });
+
+    it('should fail entire batch in atomic mode when transferWorkflow has empty destinationProjectId alongside updateName', async () => {
+      const operations: WorkflowDiffOperation[] = [
+        {
+          type: 'updateName',
+          name: 'Should Not Apply'
+        } as UpdateNameOperation,
+        {
+          type: 'transferWorkflow',
+          destinationProjectId: ''
+        } as TransferWorkflowOperation
+      ];
+
+      const request: WorkflowDiffRequest = {
+        id: 'test-workflow',
+        operations
+      };
+
+      const result = await diffEngine.applyDiff(baseWorkflow, request);
+
+      expect(result.success).toBe(false);
+      expect(result.errors).toBeDefined();
+      expect(result.errors![0].message).toContain('destinationProjectId');
+      // In atomic mode, the workflow should not be returned since the batch failed
+      expect(result.workflow).toBeUndefined();
+    });
+  });
+});