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  "name": "AI Agent with charts capabilities using OpenAI Structured Output",
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        "workflowId": "={{ $workflow.id }}",
        "description": "Call this tool whenever you need to generate a chart.",
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Example: `{scales:{yAxes:[{ticks:{min:0,max:3}`"n        },n        {n            "role": "user",n            "content": "{{ $json.query.query }}"n        }n    ],n    "response_format": {n  "type": "json_schema",n  "json_schema": {n    "name": "chart_configuration",n    "description": "Configuration schema for Chart.js charts",n    "strict": true,n    "schema": {n  "type": "object",n  "properties": {n    "type": {n      "type": "string",n      "enum": ["bar", "line", "radar", "pie", "doughnut", "polarArea", "bubble", "scatter", "area"]n    },n    "data": {n      "type": "object",n      "properties": {n        "labels": {n          "type": "array",n          "items": {n            "type": "string"n          }n        },n        "datasets": {n          "type": "array",n          "items": {n            "type": "object",n            "properties": {n              "label": {n                "type": ["string", "null"]n              },n              "data": {n                "type": "array",n                "items": {n                  "type": "number"n                }n              },n              "backgroundColor": {n                "type": ["array", "null"],n                "items": {n                  "type": "string"n                }n              },n              "borderColor": {n                "type": ["array", "null"],n                "items": {n                  "type": "string"n                }n              },n              "borderWidth": {n                "type": ["number", "null"]n              }n            },n            "required": ["data", "label", "backgroundColor", "borderColor", "borderWidth"],n            "additionalProperties": falsen          }n        }n      },n      "required": ["labels", "datasets"],n      "additionalProperties": falsen    },n    "options": {n      "type": "object",n      "properties": {n        "scales": {n          "type": ["object", "null"],n          "properties": {n            "yAxes": {n              "type": "array",n              "items": {n                "type": ["object", "null"],n                "properties": {n                  "ticks": {n                    "type": ["object", "null"],n                    "properties": {n                      "max": {n                        "type": ["number", "null"]n                      },n                      "min": {n                        "type": ["number", "null"]n                      },n                      "stepSize": {n                        "type": ["number", "null"]n                      },n                      "beginAtZero": {n                        "type": ["boolean", "null"]n                      }n                    },n                    "required": ["max", "min", "stepSize", "beginAtZero"],n                    "additionalProperties": falsen                  },n                  "stacked": {n                    "type": ["boolean", "null"]n                  }n                },n                "required": ["ticks", "stacked"],n                "additionalProperties": falsen              }},n              "xAxes": {n                "type": ["object", "null"],n                "properties": {n                  "stacked": {n                    "type": ["boolean", "null"]n                  }n                },n                "required": ["stacked"],n                "additionalProperties": falsen              }n          },n          "required": ["yAxes", "xAxes"],n          "additionalProperties": falsen        },n        "plugins": {n          "type": ["object", "null"],n          "properties": {n            "title": {n              "type": ["object", "null"],n              "properties": {n                "display": {n                  "type": ["boolean", "null"]n                },n                "text": {n                  "type": ["string", "null"]n                }n              },n              "required": ["display", "text"],n              "additionalProperties": falsen            },n            "legend": {n              "type": ["object", "null"],n              "properties": {n                "display": {n                  "type": ["boolean", "null"]n                },n                "position": {n                  "type": ["string", "null"],n                  "enum": ["top", "left", "bottom", "right", null]n                }n              },n              "required": ["display", "position"],n              "additionalProperties": falsen            }n          },n          "required": ["title", "legend"],n          "additionalProperties": falsen        }n      },n      "required": ["scales", "plugins"],n      "additionalProperties": falsen    }n  },n  "required": ["type", "data", "options"],n  "additionalProperties": falsen}n}n}n}",
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    {
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      "name": "Set response",
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      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "37512e1a-8376-4ba0-bdcd-34bb9329ae4b",
              "name": "response",
              "type": "string",
              "value": "={{ encodeURIComponent("https://quickchart.io/chart?width=200&c="+$json.choices[0].message.content) }}nn"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
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      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "color": 7,
        "width": 680.7609104727082,
        "height": 619.3187860363884,
        "content": "## Workflow: AI Agent with charts capabilities using OpenAI Structured Outputnn**Overview**n- This workflow is a experiment to integrate charts into an AI Agentn- The AI Agent has normal AI conversation and can invoke a tool to integrate a graph in the conversation.n- It uses OpenAI Structured Output to generate a chart definition according to Quickchart specifications.nnn**How it works**n- Activate the workflown- Start chatting with the AI Agent.n- When the AI Agent detects that the user needs a chat, it calls the tooln- The tool calls the sub-workflow with a query.n- The sub-workflow calls the HTTP Request node (calling OpenAI) to retrieve a chart definitionn- In the "set response" node, he chat definition is added at the end of a quickchart.io url - the URL to the chart image. It is sent back to the AI Agent.n- The AI Agent uses this image in its response.n- For example, you can ask the AI Agent to generate a chart about the top 5 movies at the box officennn**Notes**n- The full Quickchart.io specifications have not been integrated, thus there are some possible glitches (e.g due to the size of the graph, radar graphs are not displayed properly)n- This could be provided to any automation, not only AI Agents."
      },
      "typeVersion": 1
    },
    {
      "id": "fd507ff6-2d16-4498-ba2b-d91b02079311",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        740,
        800
      ],
      "parameters": {
        "color": 7,
        "width": 768.8586342909368,
        "height": 503,
        "content": "## Generate a Quickchart definitionnn**HTTP Request node**n- Send the chart query to OpenAI, with a defined JSON response format - *using HTTP Request node as it has not yet been implemented in the OpenAI nodes*n- The JSON structure is based on ChartJS and Quickchart.io definitions, that let us create nice looking graphs.n- The output is a JSON containing the chart definition that is passed to the next node.nn**Set Response node**n- Adds the chart definition at the end of a Quickchart.io URL ([see documentation](https://quickchart.io/documentation/usage/parameters/))n- Note that in the parameters, we specify the width to 250 in order to be properly displayed in the chart interface."
      },
      "typeVersion": 1
    },
    {
      "id": "7f14532a-75ee-40f8-a45b-0f037af7cb05",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        740,
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      ],
      "parameters": {
        "color": 7,
        "width": 768,
        "height": 485.8165429718969,
        "content": "### Chat Agentn- This is agent is mostly here to demonstrate how to use the sub workflow.n- This is a basic agent with a tool "generate a chart"n- The tool calls the sub-workflown- The sub-workflow responds with the Quickchart URL that is displayed in the conversation"
      },
      "typeVersion": 1
    },
    {
      "id": "7793a567-c4d4-4745-83c9-adf5397755e9",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        1020,
        400
      ],
      "parameters": {
        "options": {
          "systemMessage": "You're a general purpose ai. Using markdown, you can display images in the conversation. Don't change the width of the chart"
        }
      },
      "typeVersion": 1.6
    },
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      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "position": [
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        400
      ],
      "webhookId": "1281cd48-08a0-431d-9bf5-9bb60e6b7a77",
      "parameters": {
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    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
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    },
    "Window Buffer Memory": {
      "ai_memory": [
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            "node": "AI Agent",
            "type": "ai_memory",
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    "When chat message received": {
      "main": [
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    "Execute "Generate a chart" tool": {
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