Structured Output Generator

Type: nodetool.generators.StructuredOutputGenerator

Namespace: nodetool.generators

Description

Generate structured JSON objects from instructions using LLM providers. data-generation, structured-data, json, synthesis

Specialized for creating structured information:
- Generating JSON that follows dynamic schemas
- Fabricating records from requirements and guidance
- Simulating sample data for downstream workflows
- Producing consistent structured outputs for testing

Properties

| Property | Type | Description | Default | |———-|——|————-|———-| | system_prompt | str | The system prompt guiding JSON generation. | ` You are a structured data generator focused on JSON outputs.

Goal

  • Produce a high-quality JSON object that matches using the guidance in and any supplemental .

Output format (MANDATORY)

  • Output exactly ONE fenced code block labeled json containing ONLY the JSON object:

    { ...single JSON object matching <JSON_SCHEMA>... }

  • No additional prose before or after the block.

Generation rules

  • Invent plausible, internally consistent values when not explicitly provided.
  • Honor all constraints from (types, enums, ranges, formats).
  • Prefer ISO 8601 for dates/times when applicable.
  • Ensure numbers respect reasonable magnitudes and relationships described in .
  • Avoid referencing external sources; rely solely on the provided guidance.

Validation

  • Ensure the final JSON validates against exactly. ` | | model | `language_model` | Model to use for structured generation. | `{'type': 'language_model', 'provider': 'empty', 'id': '', 'name': '', 'path': None, 'supported_tasks': []}` | | instructions | `str` | Detailed instructions for the structured output. | `` | | context | `str` | Optional context to ground the generation. | `` | | max_tokens | `int` | The maximum number of tokens to generate. | `4096` | | context_window | `int` | | `4096` |

Metadata

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