outlines

Generate structured output from free-form text using JSON, regex, or Pydantic schemas.

1|1|Updated May 9, 2026
One-click install
npx skills add https://github.com/ldzhhxx/Hermes_offline_v2 --skill outlines-ldzhhxx
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: outlines
Source: https://github.com/ldzhhxx/Hermes_offline_v2/tree/main/hermes-agent/skills/mlops/inference/outlines
Command: npx skills add https://github.com/ldzhhxx/Hermes_offline_v2 --skill outlines-ldzhhxx

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires outlines, transformers, vllm, pydantic, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill allows users to generate structured, validated output in various formats (JSON, regex, Pydantic) from free-form text input using language models.

Core Features & Use Cases

  • Structured Output Generation: Ensures output is in the format specified by a schema, using JSON or regex constraints.
  • Type Safety: Utilizes Pydantic models for guaranteed output correctness and validation.
  • Supports Local Models: Integrates with local models like Transformers, llama.cpp, and vLLM for offline or resource-constrained environments.
  • Use Case: Imagine you need to extract structured information from a block of text and ensure it conforms to a specific schema. This Skill can help generate that structured data from unstructured text.

Quick Start

Use the outlines skill to generate structured data from the text: "Extract user: John Doe, 30 years old, [email protected]" with the schema: "User" and model: "microsoft/Phi-3-mini-4k-instruct".

Frequently Asked Questions about outlines

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate structured JSON output from free-form text using a language model?

To generate structured JSON output from free-form text, you can use the outlines library to apply schema constraints to a language model. This ensures the generated output strictly matches your JSON schema, regex, or Pydantic models for guaranteed type safety and correctness.

How do I enforce a Pydantic model schema on LLM generated text?

You can enforce a Pydantic model schema on LLM generated text by applying constraints during the generation process. This Skill uses the outlines library to validate the language model's output against your Pydantic models, ensuring guaranteed output correctness and type safety.

Can I use local models like Transformers or vLLM for structured generation?

Yes, you can use local models like Transformers, llama.cpp, and vLLM for structured generation. This allows you to process input text and generate schema-constrained output in offline or resource-constrained environments without relying on external APIs.

What is the best way to extract structured data from unstructured text while ensuring validation?

The best way to extract structured data while ensuring validation is to use a schema-constrained generation approach. By applying JSON schema or Pydantic constraints to a language model, you guarantee that the extracted data conforms to your specific format and type requirements.

Does constrained LLM generation work for automated data extraction and testing?

Yes, constrained LLM generation works for automated data extraction and testing. By forcing the language model to output text that conforms to a specific JSON schema or regex, you ensure the extracted data is structurally valid for downstream automated validation processes.