Feature/MCP (Model Context Protocol) (#4134)

add mcp tools

packages/components/nodes/tools/CurrentDateTime/CurrentDateTime.ts

@@ -0,0 +1,74 @@
+import { z } from 'zod'
+import { INode } from '../../../src/Interface'
+import { DynamicStructuredTool } from '../CustomTool/core'
+
+const code = `
+const now = new Date();
+                
+// Format date as YYYY-MM-DD
+const date = now.toISOString().split('T')[0];
+
+// Get time in HH:MM:SS format
+const time = now.toTimeString().split(' ')[0];
+
+// Get day of week
+const days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
+const day = days[now.getDay()];
+
+// Get timezone information
+const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+const timezoneOffset = now.getTimezoneOffset();
+const timezoneOffsetHours = Math.abs(Math.floor(timezoneOffset / 60));
+const timezoneOffsetMinutes = Math.abs(timezoneOffset % 60);
+const timezoneOffsetFormatted = 
+    (timezoneOffset <= 0 ? '+' : '-') + 
+    timezoneOffsetHours.toString().padStart(2, '0') + ':' + 
+    timezoneOffsetMinutes.toString().padStart(2, '0');
+
+return {
+    date,
+    time,
+    day,
+    timezone,
+    timezoneOffset: timezoneOffsetFormatted,
+    iso8601: now.toISOString(),
+    unix_timestamp: Math.floor(now.getTime() / 1000)
+};
+`
+
+class CurrentDateTime_Tools implements INode {
+    label: string
+    name: string
+    version: number
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+
+    constructor() {
+        this.label = 'CurrentDateTime'
+        this.name = 'currentDateTime'
+        this.version = 1.0
+        this.type = 'CurrentDateTime'
+        this.icon = 'currentDateTime.svg'
+        this.category = 'Tools'
+        this.description = 'Get todays day, date and time.'
+        this.baseClasses = [this.type, 'Tool']
+    }
+
+    async init(): Promise<any> {
+        const obj = {
+            name: 'current_date_time',
+            description: 'Useful to get current day, date and time.',
+            schema: z.object({}),
+            code: code
+        }
+
+        let dynamicStructuredTool = new DynamicStructuredTool(obj)
+
+        return dynamicStructuredTool
+    }
+}
+
+module.exports = { nodeClass: CurrentDateTime_Tools }

packages/components/nodes/tools/CurrentDateTime/currentDateTime.svg

@@ -0,0 +1 @@
+<svg  xmlns="http://www.w3.org/2000/svg"  width="24"  height="24"  viewBox="0 0 24 24"  fill="none"  stroke="currentColor"  stroke-width="2"  stroke-linecap="round"  stroke-linejoin="round"  class="icon icon-tabler icons-tabler-outline icon-tabler-timezone"><path stroke="none" d="M0 0h24v24H0z" fill="none"/><path d="M20.884 10.554a9 9 0 1 0 -10.337 10.328" /><path d="M3.6 9h16.8" /><path d="M3.6 15h6.9" /><path d="M11.5 3a17 17 0 0 0 -1.502 14.954" /><path d="M12.5 3a17 17 0 0 1 2.52 7.603" /><path d="M18 18m-4 0a4 4 0 1 0 8 0a4 4 0 1 0 -8 0" /><path d="M18 16.5v1.5l.5 .5" /></svg>