Output nodes

Terminal nodes that shape the workflow's response payload.

5 nodes.

---

chart — Chart

Renders a Vega-Lite chart spec to SVG (server-side, no browser). Pair with pdf_output for branded reports. The same spec format Altair / Streamlit / Observable / Vega Editor use, so an LLM can produce specs directly.

Config fields

Field	Type	Required	Values
spec	object	no	—
specTemplate	string	no	—
dataPath	string	no	—
width	number	no	—
height	number	no	—
theme	string	no	—
outputKey	string	no	—

Example config

{
  "spec": {
    "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
    "mark": "bar",
    "encoding": {
      "x": {
        "field": "category",
        "type": "nominal"
      },
      "y": {
        "field": "count",
        "type": "quantitative"
      }
    }
  },
  "dataPath": "results",
  "width": 480,
  "height": 300,
  "outputKey": "chart"
}

---

helper_chat_response — Helper Chat Response

Packages report HTML, code blocks, and file attachments into the response shape helper-chat understands.

Config fields

Field	Type	Required	Values
statusKey	string	no	—
finalHtmlKey	string	no	—
pythonCodeKey	string	no	—
followUpQuestionKey	string	no	—
messageKey	string	no	—
chartDataKey	string	no	—
artifactContextKey	string	no	—
pdfKey	string	no	—
includePdfAttachment	boolean	no	—
codeLanguage	string	no	—
outputKey	string	no	—

Example config

{
  "statusKey": "parsed.status",
  "finalHtmlKey": "parsed.final_html",
  "pythonCodeKey": "parsed.python_code",
  "followUpQuestionKey": "parsed.follow_up_question",
  "messageKey": "parsed.message",
  "chartDataKey": "parsed.chart_data",
  "artifactContextKey": "parsed.artifact_context",
  "pdfKey": "pdf",
  "includePdfAttachment": true,
  "codeLanguage": "python",
  "outputKey": "answer"
}

---

output — Output

Formats final workflow output payload.

Config fields

Field	Type	Required	Values
responseTemplate	string	no	—
outputKey	string	no	—

Example config

{
  "responseTemplate": "{{answer}}",
  "outputKey": "result"
}

---

pdf_output — PDF Output

Generates a downloadable PDF link from upstream content (plain text or HTML rendering).

Config fields

Field	Type	Required	Values
renderMode	string	no	text | html
inputKey	string	no	—
textTemplate	string	no	—
htmlTemplate	string	no	—
pageFormat	string	no	A4 | Letter | Legal | A3 | A5
printBackground	boolean	no	—
htmlRenderTimeoutMs	number	no	—
filenameTemplate	string	no	—
outputKey	string	no	—

Example config

{
  "renderMode": "text",
  "inputKey": "answer",
  "textTemplate": "",
  "htmlTemplate": "<html><body><h1>{{title}}</h1><div>{{answer}}</div></body></html>",
  "pageFormat": "A4",
  "printBackground": true,
  "htmlRenderTimeoutMs": 45000,
  "filenameTemplate": "workflow-output-{{session_id}}.pdf",
  "outputKey": "pdf"
}

---

webhook_response — Webhook Response

Overrides the outgoing webhook HTTP response (status, headers, and body).

Config fields

Field	Type	Required	Values
statusCode	number	no	—
headersTemplate	string	no	—
bodyTemplate	string	no	—

Example config

{
  "statusCode": 200,
  "headersTemplate": "{\n  \"content-type\": \"application/json\"\n}",
  "bodyTemplate": "{\"ok\":true,\"result\":\"{{result}}\"}"
}