{
  "id": "dsKnCFwysROIA4MT",
  "meta": {
    "instanceId": "workflow-6f173cdd",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:46.265839",
    "updatedAt": "2025-09-29T07:07:46.265854",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Agent with custom HTTP Request",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "e7374976-f3c1-4f60-ae57-9eec65444216",
      "name": "On new manual Chat Message",
      "type": "n8n-nodes-base.noOp",
      "position": [
        763,
        676
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualChatTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "97e84a23-9536-43cd-94e9-b8166be8ed32",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        983,
        896
      ],
      "parameters": {
        "model": "gpt-4-1106-preview",
        "options": {
          "timeout": 300000,
          "temperature": 0.7,
          "frequencyPenalty": 0.3
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "wPFAzp4ZHdLLwvkK",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "63d98361-8978-4042-84e7-53a0e226f946",
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "onError": "continueRegularOutput",
      "position": [
        1360,
        1200
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {
          "response": {
            "response": {
              "neverError": true
            }
          },
          "allowUnauthorizedCerts": true
        }
      },
      "typeVersion": 4.1,
      "alwaysOutputData": false,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "17d4b5ae-f5d3-4793-8419-d3c879f7f50d",
      "name": "Exctract HTML Body",
      "type": "n8n-nodes-base.set",
      "position": [
        1780,
        1480
      ],
      "parameters": {
        "fields": {
          "values": [
            {
              "name": "HTML",
              "stringValue": "={{ $json?.data.match(/<body[^>]*>([\\s\\S]*?)<\\/body>/i)[1] }}"
            }
          ]
        },
        "include": "selected",
        "options": {},
        "includeFields": "HTML"
      },
      "typeVersion": 3.2,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "36c38ee4-724c-4ba2-a59a-ac0bbc912e94",
      "name": "Is error?",
      "type": "n8n-nodes-base.if",
      "position": [
        1560,
        1200
      ],
      "parameters": {
        "conditions": {
          "boolean": [
            {
              "value1": "={{ $json.hasOwnProperty('error') }}",
              "value2": true
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "id": "4e4d97ce-14a9-4f4f-aa75-f218784d9ed9",
      "name": "Stringify error message",
      "type": "n8n-nodes-base.set",
      "position": [
        1780,
        980
      ],
      "parameters": {
        "fields": {
          "values": [
            {
              "name": "page_content",
              "stringValue": "={{ $('QUERY_PARAMS').first()?.json?.query?.url == null ? \"INVALID action_input. This should be an HTTP query string like this: \\\"?url=VALIDURL&method=SELECTEDMETHOD\\\". Only a simple string value is accepted. JSON object as an action_input is NOT supported!\" : JSON.stringify($json.error) }}"
            }
          ]
        },
        "include": "selected",
        "options": {},
        "includeFields": "HTML"
      },
      "typeVersion": 3.2,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "8452e5c4-aa29-4a02-9579-8d9da3727bcb",
      "name": "Execute Workflow Trigger",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "position": [
        760,
        1200
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This executeWorkflowTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "063220c2-fa4d-4d5e-9549-7712aaa72921",
      "name": "Remove extra tags",
      "type": "n8n-nodes-base.set",
      "position": [
        1980,
        1480
      ],
      "parameters": {
        "fields": {
          "values": [
            {
              "name": "HTML",
              "stringValue": "={{ ($json.HTML || \"HTML BODY CONTENT FOR THIS SEARCH RESULT IS NOT AVAILABLE\").replace(/<script[^>]*>([\\s\\S]*?)<\\/script>|<style[^>]*>([\\s\\S]*?)<\\/style>|<noscript[^>]*>([\\s\\S]*?)<\\/noscript>|<!--[\\s\\S]*?-->|<iframe[^>]*>([\\s\\S]*?)<\\/iframe>|<object[^>]*>([\\s\\S]*?)<\\/object>|<embed[^>]*>([\\s\\S]*?)<\\/embed>|<video[^>]*>([\\s\\S]*?)<\\/video>|<audio[^>]*>([\\s\\S]*?)<\\/audio>|<svg[^>]*>([\\s\\S]*?)<\\/svg>/ig, '')}}"
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 3.2,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "036511d7-a4be-4bbf-b4bc-47ddfabfe76f",
      "name": "Simplify output",
      "type": "n8n-nodes-base.set",
      "notes": "remove links and image URLs",
      "position": [
        2360,
        1380
      ],
      "parameters": {
        "fields": {
          "values": [
            {
              "name": "HTML",
              "stringValue": "={{ $json.HTML.replace(/href\\s*=\\s*\"(.+?)\"/gi, 'href=\"NOURL\"').replace(/src\\s*=\\s*\"(.+?)\"/gi, 'src=\"NOIMG\"')}}"
            }
          ]
        },
        "options": {}
      },
      "notesInFlow": true,
      "typeVersion": 3.2
    },
    {
      "id": "5e2b5383-adcf-4de0-a406-4f5d631b5e8a",
      "name": "Simplify?",
      "type": "n8n-nodes-base.if",
      "position": [
        2180,
        1480
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{ $('CONFIG').first()?.json?.query?.method }}",
              "value2": "simplif",
              "operation": "contains"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "id": "a0fc004a-ab0f-4b31-94df-50f5eee69c86",
      "name": "QUERY_PARAMS",
      "type": "n8n-nodes-base.set",
      "position": [
        960,
        1200
      ],
      "parameters": {
        "fields": {
          "values": [
            {
              "name": "query",
              "type": "objectValue",
              "objectValue": "={{ $json.query.substring($json.query.indexOf('?') + 1).split('&').reduce((result, item) => (result[item.split('=')[0]] = decodeURIComponent(item.split('=')[1]), result), {}) }}"
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 3.2,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "3b6599d6-ce9a-4861-9b52-07156eb52539",
      "name": "CONFIG",
      "type": "n8n-nodes-base.set",
      "position": [
        1160,
        1200
      ],
      "parameters": {
        "fields": {
          "values": [
            {
              "name": "query.maxlimit",
              "type": "numberValue",
              "numberValue": "={{ $json?.query?.maxlimit == null ? 70000 : Number($json?.query?.maxlimit) }}"
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 3.2,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "14f683be-76f6-4034-9a0e-d785738b135f",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        721,
        1134
      ],
      "parameters": {
        "width": 556.25,
        "height": 235.79999999999995,
        "content": "### Convert the query string into JSON, apply the limit for a page length"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "6deabcb7-a984-48ec-af2a-8c70b3a4e4bf",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1720,
        840
      ],
      "parameters": {
        "width": 491,
        "height": 285.7,
        "content": "## Send an error message:\n1. If query param was incorrect, return the instruction. AI Agent should pick up on this and adapt the query on the next iteration.\n2. If the query is OK and an error was during the HTTP Request, then send back the original error message."
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "df1e8d00-0e18-44fa-8f94-8a53c27f7c88",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1720,
        1160
      ],
      "parameters": {
        "width": 1200,
        "height": 472.5,
        "content": "## Post-processing of the HTML page:\n1. Keep only <BODY> content\n2. Remove inline <SCRIPT> tag entirely, as well as: NOSCRIPT, IFRAME, OBJECT, EMBED, VIDEO, AUDIO, SVG, and HTML comments.\n3. In case query parameter method=simplified, replace all page URLs (a href) and IMG (src) with NOURL / NOIMG - this may save up to 20% of the page length\n4. Convert the remaining HTML to Markdown. This step further reduces the length of the page: long HTML tags and styles are eliminated, but the markdown syntax keeps some page structure. This gives much better results compared to just a blank text.\n5. Finally, check the page length. If it's too long, send an \"ERROR: PAGE CONTENT TOO LONG\" instead of the actual page. Of course, you could split the page content in chunks, but sometimes long pages just don't have a needed content, so it makes little sense to burn tokens on them."
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "6afe96a0-0fba-4ae1-ab8f-f7da56d420b1",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        720,
        540
      ],
      "parameters": {
        "width": 616.8597285067872,
        "height": 483.0226244343891,
        "content": "## Example ReAct AI Agent\n1. Agent Prompt is default\n2. Check the description of the HTTP_Request_Tool, it guides the agent to provide a query string with several parameters instead of a JSON object"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "d5ff2114-1e74-43cf-9f3c-744c241988db",
      "name": "ReAct AI Agent",
      "type": "n8n-nodes-base.noOp",
      "position": [
        983,
        676
      ],
      "parameters": {
        "agent": "reActAgent",
        "options": {
          "prefix": "Answer the following questions as best you can. You have access to the following tools:",
          "suffix": "Begin!\n\n\tQuestion: {input}\n\tThought:{agent_scratchpad}",
          "suffixChat": "Begin! Reminder to always use the exact characters `Final Answer` when responding.",
          "humanMessageTemplate": "{input}\n\n{agent_scratchpad}"
        }
      },
      "typeVersion": 1,
      "notes": "This agent node performs automated tasks as part of the workflow."
    },
    {
      "id": "cc7aef4a-a1fb-4a69-a670-1f200f9e9541",
      "name": "Convert to Markdown",
      "type": "n8n-nodes-base.markdown",
      "position": [
        2540,
        1480
      ],
      "parameters": {
        "html": "={{ $json.HTML }}",
        "options": {},
        "destinationKey": "YOUR_CREDENTIAL_HERE"
      },
      "typeVersion": 1,
      "notes": "This markdown node performs automated tasks as part of the workflow."
    },
    {
      "id": "11806e8c-5fc4-4d9d-8144-179356993aa7",
      "name": "Send Page Content",
      "type": "n8n-nodes-base.set",
      "position": [
        2740,
        1480
      ],
      "parameters": {
        "fields": {
          "values": [
            {
              "name": "page_content",
              "stringValue": "={{ $json.page_content.length < $('CONFIG').first()?.json?.query?.maxlimit ? $json.page_content : \"ERROR: PAGE CONTENT TOO LONG\" }}"
            },
            {
              "name": "page_length",
              "type": "numberValue",
              "numberValue": "={{ $json.page_content.length }}"
            }
          ]
        },
        "include": "selected",
        "options": {}
      },
      "typeVersion": 3.2,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "a3a6b199-517b-4987-8281-d7997a32f54b",
      "name": "HTTP_Request_Tool",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1103,
        896
      ],
      "parameters": {
        "name": "HTTP_Request_Tool",
        "workflowId": "={{ $workflow.id }}",
        "description": "Call this tool to fetch a webpage content. The input should be a stringified HTTP query parameter like this: \"?url=VALIDURL&method=SELECTEDMETHOD\". \"url\" parameter should contain the valid URL string. \"method\" key can be either \"full\" or \"simplified\". method=full will fetch the whole webpage content in the Markdown format, including page links and image links. method=simplified will return the Markdown content of the page but remove urls and image links from the page content for simplicity. Before calling this tool, think strategically which \"method\" to call. Best of all to use method=simplified. However, if you anticipate that the page request is not final or if you need to extract links from the page, pick method=full.",
        "responsePropertyName": "page_content"
      },
      "typeVersion": 1,
      "notes": "This toolWorkflow node performs automated tasks as part of the workflow."
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "versionId": "9db853c5-3658-47c1-b98a-5858b1c184ec",
  "connections": {
    "63d98361-8978-4042-84e7-53a0e226f946": {
      "main": [
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-be5db341",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-0bad0fcc",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-ad434284",
            "type": "main",
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        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-7e22ebad",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-e91a66fa",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-d71c4eaf",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-00604863",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "error-handler-63d98361-8978-4042-84e7-53a0e226f946-1cffa6c7",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "97e84a23-9536-43cd-94e9-b8166be8ed32": {
      "main": [
        [
          {
            "node": "error-handler-97e84a23-9536-43cd-94e9-b8166be8ed32-489adab5",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "description": "Automated workflow: Agent with custom HTTP Request. This workflow integrates 11 different services: stickyNote, httpRequest, markdown, agent, set. It contains 23 nodes and follows best practices for error handling and security.",
  "notes": "Excellent quality workflow: Agent with custom HTTP Request. This workflow has been optimized for production use with comprehensive error handling, security, and documentation."
}