feat: Tool consolidation v2.26.0 - reduce tools by 38% (31 → 19)

Major consolidation of MCP tools using mode-based parameters for better
AI agent ergonomics:

Node Tools:
- get_node_documentation → get_node with mode='documentation'
- search_node_properties → get_node with mode='search_properties'
- get_property_dependencies → removed

Validation Tools:
- validate_node_operation + validate_node_minimal → validate_node with mode param

Template Tools:
- list_node_templates → search_templates with searchMode='nodes'
- search_templates_by_metadata → search_templates with searchMode='metadata'
- get_templates_for_task → search_templates with searchMode='task'

Workflow Getters:
- n8n_get_workflow_details/structure/minimal → n8n_get_workflow with mode param

Execution Tools:
- n8n_list/get/delete_execution → n8n_executions with action param

Test updates for all consolidated tools.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

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

tests/integration/mcp-protocol/error-handling.test.ts

@@ -135,11 +135,13 @@ describe('MCP Error Handling', () => {
     });
 
     describe('Validation Errors', () => {
+      // v2.26.0: validate_node_operation consolidated into validate_node
       it('should handle invalid validation profile', async () => {
         try {
-          await client.callTool({ name: 'validate_node_operation', arguments: {
+          await client.callTool({ name: 'validate_node', arguments: {
             nodeType: 'nodes-base.httpRequest',
             config: { method: 'GET', url: 'https://api.example.com' },
+            mode: 'full',
             profile: 'invalid_profile' as any
           } });
           expect.fail('Should have thrown an error');
@@ -292,12 +294,14 @@ describe('MCP Error Handling', () => {
   });
 
   describe('Invalid JSON Handling', () => {
+    // v2.26.0: validate_node_operation consolidated into validate_node
     it('should handle invalid JSON in tool parameters', async () => {
       try {
         // Config should be an object, not a string
-        await client.callTool({ name: 'validate_node_operation', arguments: {
+        await client.callTool({ name: 'validate_node', arguments: {
           nodeType: 'nodes-base.httpRequest',
-          config: 'invalid json string' as any
+          config: 'invalid json string' as any,
+          mode: 'full'
         } });
         expect.fail('Should have thrown an error');
       } catch (error: any) {
@@ -509,13 +513,15 @@ describe('MCP Error Handling', () => {
       }
     });
 
+    // v2.26.0: validate_node_operation consolidated into validate_node
     it('should provide context for validation errors', async () => {
-      const response = await client.callTool({ name: 'validate_node_operation', arguments: {
+      const response = await client.callTool({ name: 'validate_node', arguments: {
         nodeType: 'nodes-base.httpRequest',
         config: {
           // Missing required fields
           method: 'INVALID_METHOD'
-        }
+        },
+        mode: 'full'
       } });
 
       const validation = JSON.parse((response as any).content[0].text);

tests/integration/mcp-protocol/protocol-compliance.test.ts

@@ -217,13 +217,14 @@ describe('MCP Protocol Compliance', () => {
 
   describe('Protocol Extensions', () => {
     it('should handle tool-specific extensions', async () => {
-      // Test tool with complex params
-      const response = await client.callTool({ name: 'validate_node_operation', arguments: {
+      // Test tool with complex params (using consolidated validate_node from v2.26.0)
+      const response = await client.callTool({ name: 'validate_node', arguments: {
         nodeType: 'nodes-base.httpRequest',
         config: {
           method: 'GET',
           url: 'https://api.example.com'
         },
+        mode: 'full',
         profile: 'runtime'
       } });
 

tests/integration/mcp-protocol/tool-invocation.test.ts

@@ -151,14 +151,16 @@ describe('MCP Tool Invocation', () => {
   });
 
   describe('Validation Tools', () => {
-    describe('validate_node_operation', () => {
+    // v2.26.0: validate_node_operation consolidated into validate_node with mode parameter
+    describe('validate_node', () => {
       it('should validate valid node configuration', async () => {
-        const response = await client.callTool({ name: 'validate_node_operation', arguments: {
+        const response = await client.callTool({ name: 'validate_node', arguments: {
           nodeType: 'nodes-base.httpRequest',
           config: {
             method: 'GET',
             url: 'https://api.example.com/data'
-          }
+          },
+          mode: 'full'
         }});
 
         const validation = JSON.parse(((response as any).content[0]).text);
@@ -168,12 +170,13 @@ describe('MCP Tool Invocation', () => {
       });
 
       it('should detect missing required fields', async () => {
-        const response = await client.callTool({ name: 'validate_node_operation', arguments: {
+        const response = await client.callTool({ name: 'validate_node', arguments: {
           nodeType: 'nodes-base.httpRequest',
           config: {
             method: 'GET'
             // Missing required 'url' field
-          }
+          },
+          mode: 'full'
         }});
 
         const validation = JSON.parse(((response as any).content[0]).text);
@@ -184,11 +187,12 @@ describe('MCP Tool Invocation', () => {
 
       it('should support different validation profiles', async () => {
         const profiles = ['minimal', 'runtime', 'ai-friendly', 'strict'];
-        
+
         for (const profile of profiles) {
-          const response = await client.callTool({ name: 'validate_node_operation', arguments: {
+          const response = await client.callTool({ name: 'validate_node', arguments: {
             nodeType: 'nodes-base.httpRequest',
             config: { method: 'GET', url: 'https://api.example.com' },
+            mode: 'full',
             profile
           }});