Workflow: Agent Milvus tool
Integrations: html, httpRequest, limit, manualTrigger, splitOut, stickyNote

{"id": "A5R7XYSzrCJKlw9k", "meta": {"instanceId": "2c4c1e23e7b067270c08aab616bada21d0c384d16f212b23cf1143c6baa09219", "templateCredsSetupCompleted": true}, "name": "Agent Milvus tool", "tags": [{"id": "msnDWKHQmwMDxWQH", "name": "Milvus", "createdAt": "2025-04-16T12:48:14.539Z", "updatedAt": "2025-04-16T12:48:14.539Z"}, {"id": "tnCpo8hq8uKrdASK", "name": "AI", "createdAt": "2025-04-16T12:47:57.976Z", "updatedAt": "2025-04-16T12:47:57.976Z"}], "nodes": [{"id": "cfe6264a-2be1-4d1e-974b-ee05ca8ae9ab", "name": "When clicking \"Execute Workflow\"", "type": "n8n-nodes-base.manualTrigger", "position": [-280, -40], "parameters": {}, "typeVersion": 1}, {"id": "c0665cc9-2bce-48db-a3bc-15baac68e569", "name": "Fetch Essay List", "type": "n8n-nodes-base.httpRequest", "position": [-20, -40], "parameters": {"url": "http://www.paulgraham.com/articles.html", "options": {}}, "typeVersion": 4.2}, {"id": "00bcdc0b-eb6d-41eb-ac0d-a6710d6232e4", "name": "Extract essay names", "type": "n8n-nodes-base.html", "position": [180, -40], "parameters": {"options": {}, "operation": "extractHtmlContent", "extractionValues": {"values": [{"key": "essay", "attribute": "href", "cssSelector": "table table a", "returnArray": true, "returnValue": "attribute"}]}}, "typeVersion": 1.2}, {"id": "523c319e-d1c7-4214-a725-dc557f6471a2", "name": "Split out into items", "type": "n8n-nodes-base.splitOut", "position": [380, -40], "parameters": {"options": {}, "fieldToSplitOut": "essay"}, "typeVersion": 1}, {"id": "be155368-99f5-43b3-ba6c-50cccf2b72d2", "name": "Fetch essay texts", "type": "n8n-nodes-base.httpRequest", "position": [780, -40], "parameters": {"url": "=http://www.paulgraham.com/{{ $json.essay }}", "options": {}}, "typeVersion": 4.2}, {"id": "92af113c-dd71-4ddd-b50a-f5932392ed82", "name": "Limit to first 3", "type": "n8n-nodes-base.limit", "position": [580, -40], "parameters": {"maxItems": 3}, "typeVersion": 1}, {"id": "1a1893c4-e8b2-454a-b49f-a0b0f3c01aca", "name": "Extract Text Only", "type": "n8n-nodes-base.html", "position": [1100, -40], "parameters": {"options": {}, "operation": "extractHtmlContent", "extractionValues": {"values": [{"key": "data", "cssSelector": "body", "skipSelectors": "img,nav"}]}}, "typeVersion": 1.2}, {"id": "d14ae606-f002-4fde-a896-bf1c7fa675b2", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [-100, -160], "parameters": {"width": 1071.752021563343, "height": 285.66037735849045, "content": "## Scrape latest Paul Graham essays"}, "typeVersion": 1}, {"id": "dfb0cb32-9d7c-4588-b75e-0b79231eb72a", "name": "Sticky Note5", "type": "n8n-nodes-base.stickyNote", "position": [1020, -160], "parameters": {"width": 625, "height": 607, "content": "## Load into Milvus vector database"}, "typeVersion": 1}, {"id": "862a1a02-50e2-42af-9fa9-eb3a4f2ca463", "name": "Recursive Character Text Splitter1", "type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter", "position": [1440, 300], "parameters": {"options": {}, "chunkSize": 6000}, "typeVersion": 1}, {"id": "91ac110a-57db-44b1-b22f-d2a63f22f173", "name": "Milvus Vector Store", "type": "@n8n/n8n-nodes-langchain.vectorStoreMilvus", "position": [1320, -40], "parameters": {"mode": "insert", "options": {"clearCollection": true}, "milvusCollection": {"__rl": true, "mode": "list", "value": "n8n_test", "cachedResultName": "n8n_test"}}, "credentials": {"milvusApi": {"id": "8tMHHoLiWXIAXa7S", "name": "Milvus account"}}, "typeVersion": 1.1}, {"id": "456e917f-d466-4ec8-8df9-3774ba58151d", "name": "AI Agent", "type": "@n8n/n8n-nodes-langchain.agent", "position": [60, 360], "parameters": {"options": {}}, "typeVersion": 1.9}, {"id": "a5c5f308-097d-4fe0-92be-d717fd1e0b74", "name": "When chat message received", "type": "@n8n/n8n-nodes-langchain.chatTrigger", "position": [-280, 360], "webhookId": "cd2703a7-f912-46fe-8787-3fb83ea116ab", "parameters": {"options": {}}, "typeVersion": 1.1}, {"id": "dc352f07-335f-47cb-8270-32a4a0b87df7", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [-460, -200], "parameters": {"width": 280, "height": 180, "content": "## Step 1\n1. Set up a Milvus server based on [this guide](https://milvus.io/docs/install_standalone-docker-compose.md). And then create a collection named `n8n_test`.\n2. Click this workflow to load scrape and load Paul Graham essays to Milvus collection.\n"}, "typeVersion": 1}, {"id": "5c9e9871-c9c1-458e-b35c-eab87ac5ca26", "name": "Default Data Loader", "type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader", "position": [1360, 180], "parameters": {"options": {}, "jsonData": "={{ $('Extract Text Only').item.json.data }}", "jsonMode": "expressionData"}, "typeVersion": 1}, {"id": "5b202001-525c-4481-a263-56b69c9b1bd8", "name": "Milvus Vector Store as tool", "type": "@n8n/n8n-nodes-langchain.vectorStoreMilvus", "position": [180, 560], "parameters": {"mode": "retrieve-as-tool", "toolName": "milvus_knowledge_base", "toolDescription": "useful when you need to retrieve information", "milvusCollection": {"__rl": true, "mode": "list", "value": "n8n_test", "cachedResultName": "n8n_test"}}, "credentials": {"milvusApi": {"id": "8tMHHoLiWXIAXa7S", "name": "Milvus account"}}, "typeVersion": 1.1}, {"id": "6b5b95c7-dde2-4c3f-952b-97a8f5c267c9", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [-460, 260], "parameters": {"width": 280, "height": 120, "content": "## Step 2\nStart to chat with the AI Agent with Milvus tool"}, "typeVersion": 1}, {"id": "5ccfe636-2bb3-4026-98f0-57ba8d5780f0", "name": "Embeddings OpenAI", "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi", "position": [1220, 200], "parameters": {"options": {}}, "credentials": {"openAiApi": {"id": "hH2PTDH4fbS7fdPv", "name": "OpenAi account"}}, "typeVersion": 1.2}, {"id": "982622e9-af05-4ee2-ae7d-166c47f75ce9", "name": "OpenAI Chat Model", "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi", "position": [20, 560], "parameters": {"model": {"__rl": true, "mode": "list", "value": "gpt-4o-mini"}, "options": {}}, "credentials": {"openAiApi": {"id": "hH2PTDH4fbS7fdPv", "name": "OpenAi account"}}, "typeVersion": 1.2}, {"id": "abd97878-cce6-44a0-8bae-91536ea48b6b", "name": "Embeddings OpenAI1", "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi", "position": [200, 740], "parameters": {"options": {}}, "credentials": {"openAiApi": {"id": "hH2PTDH4fbS7fdPv", "name": "OpenAi account"}}, "typeVersion": 1.2}, {"id": "00d49aab-3200-44fc-a0fc-8f7f22998617", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [-80, 300], "parameters": {"color": 7, "width": 574, "height": 629, "content": ""}, "typeVersion": 1}], "active": false, "pinData": {}, "settings": {"executionOrder": "v1"}, "versionId": "8e6f0bb5-1fb5-48fc-8a1f-488362be4ef7", "connections": {"Fetch Essay List": {"main": [[{"node": "Extract essay names", "type": "main", "index": 0}]]}, "Limit to first 3": {"main": [[{"node": "Fetch essay texts", "type": "main", "index": 0}]]}, "Embeddings OpenAI": {"ai_embedding": [[{"node": "Milvus Vector Store", "type": "ai_embedding", "index": 0}]]}, "Extract Text Only": {"main": [[{"node": "Milvus Vector Store", "type": "main", "index": 0}]]}, "Fetch essay texts": {"main": [[{"node": "Extract Text Only", "type": "main", "index": 0}]]}, "OpenAI Chat Model": {"ai_languageModel": [[{"node": "AI Agent", "type": "ai_languageModel", "index": 0}]]}, "Embeddings OpenAI1": {"ai_embedding": [[{"node": "Milvus Vector Store as tool", "type": "ai_embedding", "index": 0}]]}, "Default Data Loader": {"ai_document": [[{"node": "Milvus Vector Store", "type": "ai_document", "index": 0}]]}, "Extract essay names": {"main": [[{"node": "Split out into items", "type": "main", "index": 0}]]}, "Split out into items": {"main": [[{"node": "Limit to first 3", "type": "main", "index": 0}]]}, "When chat message received": {"main": [[{"node": "AI Agent", "type": "main", "index": 0}]]}, "Milvus Vector Store as tool": {"ai_tool": [[{"node": "AI Agent", "type": "ai_tool", "index": 0}]]}, "When clicking \"Execute Workflow\"": {"main": [[{"node": "Fetch Essay List", "type": "main", "index": 0}]]}, "Recursive Character Text Splitter1": {"ai_textSplitter": [[{"node": "Default Data Loader", "type": "ai_textSplitter", "index": 0}]]}}}