instructor

Extract and validate structured data from LLM responses using Pydantic schemas.

Updated Jun 28, 2026
One-click install
npx skills add https://github.com/jleechanorg/hermes-agent --skill instructor-jleechanorg
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: instructor
Source: https://github.com/jleechanorg/hermes-agent/tree/main/optional-skills/mlops/instructor
Command: npx skills add https://github.com/jleechanorg/hermes-agent --skill instructor-jleechanorg

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Extract and validate structured data from LLM outputs to ensure reliable, type-safe results.

Core Features & Use Cases

  • Automatic validation: Enforces Pydantic schemas on LLM outputs and retries on validation failures.
  • Streaming outputs: Streams partial results for real-time processing and UI updates.
  • Provider-agnostic: Works across multiple LLM providers with consistent behavior.
  • Error handling: Clear feedback and retry loops when data is missing or malformed.

Quick Start

Ask the AI to extract a structured user profile from a natural-language input and validate it against a Pydantic model.

Frequently Asked Questions about instructor

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

FAQPage Schema
How do I validate LLM outputs against a Pydantic schema?▼

You can extract structured data from LLM responses by enforcing Pydantic schemas that validate the output and automatically retry generation when validation fails, ensuring reliable type-safe results.

Can I stream partial structured data results from multiple LLM providers?▼

Yes, you can stream partial structured data results in real-time across multiple LLM providers. This skill supports provider-agnostic streaming to enable immediate processing and UI updates as data arrives.

What is the best way to handle validation errors during LLM data extraction?▼

The best way to handle validation errors during LLM data extraction is using automatic retry loops with configurable limits. This provides clear feedback and re-prompts the model when extracted data is missing or malformed.

Does this structured data extraction approach work across different LLM providers?▼

Yes, this structured data extraction approach works provider-agnostically across multiple LLM providers. It ensures consistent Pydantic schema validation and streaming behavior regardless of the underlying LLM integration.

Why does LLM data extraction fail without structured validation?▼

LLM data extraction often fails without structured validation because models can return missing or malformed data. Enforcing Pydantic schemas with automatic retries ensures outputs strictly match expected types and formats.