# Constrain agent outputs with Outlines structured generation

> Force LLM outputs into typed schemas, enums, JSON-like structures, and routing records during generation instead of repairing malformed text afterward.

- Skill: `agentskillexchange/constrain-agent-outputs-with-outlines-structured-generation` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentskillexchange/constrain-agent-outputs-with-outlines-structured-generation`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/constrain-agent-outputs-with-outlines-structured-generation/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/agentskillexchange/constrain-agent-outputs-with-outlines-structured-generation

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# Constrain agent outputs with Outlines structured generation

Force LLM outputs into typed schemas, enums, JSON-like structures, and routing records during generation instead of repairing malformed text afterward.

## Prerequisites

Python, Outlines, supported LLM runtime or provider, schema definitions

## Installation

Use the upstream install or setup path that matches your environment:
- pip install outlines

Requirements and caveats from upstream:
- Outlines follows a simple pattern that mirrors Python's own type system. Simply specify the desired output type, and Outlines will ensure your data matches that structure exactly:
- python
- | **Custome types** | Intuitive interface to build complex types | [Python Types Guide →](https://dottxt-ai.github.io/outlines/latest/features/core/output_types/#basic-python-types) |

Basic usage or getting-started notes:
- import outlines
- from transformers import AutoTokenizer, AutoModelForCausalLM
- MODEL_NAME = "microsoft/Phi-3-mini-4k-instruct"

- Source: https://github.com/dottxt-ai/outlines
- Extracted from upstream docs: https://raw.githubusercontent.com/dottxt-ai/outlines/HEAD/README.md

## Documentation

- https://dottxt-ai.github.io/outlines/

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/constrain-agent-outputs-with-outlines-structured-generation/)