jimmyracheta/AI-Runtime-Guard

Overview

A Python library that enforces runtime constraints on AI model outputs, validating against predefined rules or schemas. It intercepts model responses and checks them against guard policies before returning to the caller.

Best for

Best for
Developers needing a lightweight, self-hosted guardrail for LLM outputs in Python applications.

Use cases

• Blocking harmful or off-topic LLM outputs in production
• Validating structured data from model responses against a schema
• Enforcing content safety policies in real-time inference pipelines

How to use

Install

pipx install ai-runtime-guard

Tools exposed

• ai-runtime-guard

Tested with

Claude Code, Claude Desktop, Cursor, Codex

Example client config

{\n  "AIRG_WORKSPACE": "/path/to/your/workspace",\n  "AIRG_AGENT_ID": "your-agent-id"\n}

Notes

A Python library that enforces runtime constraints on AI model outputs, validating against predefined rules or schemas. It intercepts model responses and checks them against guard policies before returning to the caller.

14 stars on GitHub. Last updated 2026-05-31. Licensed MIT.

Use cases

• Blocking harmful or off-topic LLM outputs in production
• Validating structured data from model responses against a schema
• Enforcing content safety policies in real-time inference pipelines

Pros

• Lightweight and easy to integrate into existing Python services
• Provides a simple policy definition interface for common constraints
• Open source with a permissive license for customization

Cons

• Small community and limited documentation due to low star count
• May not cover complex or multi-step validation scenarios
• Requires manual policy authoring for each use case

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.