Tool: Summarize Slack Conversation

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "createdAt": "2025-03-04T05:07:50.684Z",
  "updatedAt": "2025-03-04T21:03:52.713Z",
  "id": "vchuPxsgQU32o0v1",
  "name": "Tool: Summarize Slack Conversation",
  "active": false,
  "nodes": [
    {
      "parameters": {
        "authentication": "oAuth2",
        "resource": "channel",
        "operation": "history",
        "channelId": {
          "__rl": true,
          "value": "C083QQBQTAM",
          "mode": "list",
          "cachedResultName": "flowise-n8n"
        },
        "limit": 10,
        "filters": {}
      },
      "id": "d572a7b3-311e-4864-a604-11d679ecc855",
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 2.2,
      "position": [
        1040,
        360
      ],
      "credentials": {
        "slackOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "options": {}
      },
      "id": "c30ce367-cb19-4ef9-b8e7-0e03982960f6",
      "name": "Respond to Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        1840,
        360
      ]
    },
    {
      "parameters": {
        "fieldsToAggregate": {
          "fieldToAggregate": [
            {
              "fieldToAggregate": "text"
            }
          ]
        },
        "options": {}
      },
      "id": "fdb91643-0f0f-4ad5-b333-2294029f0ae7",
      "name": "Aggregate",
      "type": "n8n-nodes-base.aggregate",
      "typeVersion": 1,
      "position": [
        1260,
        360
      ]
    },
    {
      "parameters": {
        "options": {}
      },
      "id": "bf2c887e-bb34-44fc-89ea-fad409db0317",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1,
      "position": [
        1480,
        580
      ],
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "=Summarize the following conversation, outputting just the summary and nothing else - no preabmle or explanation. \n\nKeep in mind the latest message is the first in the list: \n\n{{ $json.text }}"
      },
      "id": "90984360-3628-494d-a077-08ec69fd88e5",
      "name": "Basic LLM Chain",
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "typeVersion": 1.4,
      "position": [
        1480,
        360
      ]
    },
    {
      "parameters": {
        "path": "66a5755c-5030-4a6b-9b5e-2e09a21456d6",
        "authentication": "headerAuth",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "930860ba-d339-4668-a13c-4e2277308161",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        820,
        360
      ],
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      }
    }
  ],
  "connections": {
    "Slack": {
      "main": [
        [
          {
            "node": "Aggregate",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Aggregate": {
      "main": [
        [
          {
            "node": "Basic LLM Chain",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Basic LLM Chain",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Basic LLM Chain": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Webhook": {
      "main": [
        [
          {
            "node": "Slack",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "versionId": "912ccb44-ab30-473a-b43b-457303c328cf",
  "triggerCount": 0,
  "tags": [
    {
      "createdAt": "2025-03-04T21:03:30.839Z",
      "updatedAt": "2025-03-04T21:03:30.839Z",
      "id": "axMWVfQXy5mbxCQA",
      "name": "tool"
    }
  ]
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• httpHeaderAuth
• openAiApi
• slackOAuth2Api

About this workflow

Tool: Summarize Slack Conversation. Uses slack, lmChatOpenAi, chainLlm. Webhook trigger; 6 nodes.

Source: https://github.com/LLemonStack/llemonstack/blob/2f1cc4dcf8939a3fa79fccacf59addd5c0d563a3/examples/n8n/workflows/Tool_Slack-Summary_vchuPxsgQU32o0v1.json — original creator credit. Request a take-down →

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