outlines

Generate structured outputs from Pydantic models and JSON schemas.

Updated Apr 27, 2026
One-click install
npx skills add https://github.com/AissenLiu/EasyHermes --skill outlines-aissenliu
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: outlines
Source: https://github.com/AissenLiu/EasyHermes/tree/main/hermes-agent/skills/mlops/inference/outlines
Command: npx skills add https://github.com/AissenLiu/EasyHermes --skill outlines-aissenliu

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

AI systems often produce unstructured or incorrectly formatted data, requiring manual post-processing to extract useful, machine-readable results.

Core Features & Use Cases

  • Structured outputs with Pydantic models and JSON schemas for type safety.
  • Local model support (Transformers, llama.cpp, vLLM) for offline or restricted environments.
  • Zero-overhead constrained generation using FSM-based grammar to guarantee validity.
  • Use cases include data extraction pipelines, form processing, and automated documentation generation.

Quick Start

Prompt the AI to generate a JSON payload that strictly conforms to a given Pydantic model.

Frequently Asked Questions about outlines

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

FAQPage Schema
How do I enforce structured generation with local models offline?

Structured generation with local models offline is achieved by applying zero-overhead constrained generation via FSM-based grammar, guaranteeing outputs conform strictly to predefined schemas without internet access.

Can I use Pydantic models for type-safe JSON schema generation?

Yes, Pydantic models can be used for type-safe JSON schema generation, ensuring AI systems produce machine-readable results that align with predefined formats and eliminating manual post-processing.

Does structured generation work with llama.cpp and vLLM backends?

Structured generation works with local backends including llama.cpp, vLLM, and Transformers, supporting data extraction pipelines and automated documentation generation in restricted environments.

What is FSM-based constrained generation and when do I need it?

FSM-based constrained generation uses a finite state machine grammar to guarantee output validity with zero overhead. It is needed when AI systems produce unstructured data requiring manual formatting.

Why does my AI model output incorrectly formatted JSON payloads?

AI models output incorrectly formatted JSON payloads because they produce unstructured data by default. Applying FSM-based constrained generation guarantees strict adherence to predefined JSON schemas.

Do I need an internet connection to run constrained data extraction pipelines?

No internet connection is required to run constrained data extraction pipelines. The system supports local model backends like Transformers and llama.cpp for offline structured generation.