Overview
nemo-guardrails is an open-source backend skill for Claude Code and compatible agents, published by Orchestra-Research. Its author describes it as: “NVIDIA's runtime safety framework for LLM applications. Features jailbreak detection, input/output validation, fact-checking, hallucination detection, PII filtering, toxicity detection. Uses Colang 2.0 DSL for program…”. The project has 12k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add Orchestra-Research/AI-Research-SKILLs`.
What nemo-guardrails does
NeMo Guardrails adds programmable safety rails to LLM applications at runtime.
What’s inside
The SKILL.md for nemo-guardrails is organised into these sections:
- Quick start
- Common workflows
- Workflow 1: Jailbreak detection
- Workflow 2: Self-check input/output
- Workflow 3: Fact-checking with retrieval
- Workflow 4: PII detection with Presidio
- Workflow 5: LlamaGuard integration
- When to use vs alternatives
- Common issues
- Advanced topics
- Hardware requirements
- Resources
Installation
Add nemo-guardrails to your agent with:
/plugin marketplace add Orchestra-Research/AI-Research-SKILLsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
- Codex — declared in the repository topics
License
nemo-guardrails is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in Orchestra-Research/AI-Research-SKILLs, an established project with 11,807 GitHub stars
- Works with Claude Code, Codex
Author
Topics
Frequently asked questions
- What does nemo-guardrails do?
- NVIDIA's runtime safety framework for LLM applications. Features jailbreak detection, input/output validation, fact-checking, hallucination detection, PII filtering, toxicity detection. Uses Colang 2.0 DSL for programmable rails. Production-ready, runs on T4 GPU.
- How do I install nemo-guardrails?
- Run /plugin marketplace add Orchestra-Research/AI-Research-SKILLs in your agent, then reload your skills. Review the source at https://github.com/Orchestra-Research/AI-Research-SKILLs before installing.
- Is nemo-guardrails free to use?
- Yes. nemo-guardrails is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does nemo-guardrails work with?
- nemo-guardrails lists Claude Code and Codex — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does nemo-guardrails come from?
- nemo-guardrails ships inside Orchestra-Research/AI-Research-SKILLs, a repository that contains 41 catalogued skills in total. The repository's 11,807 GitHub stars apply to that whole collection, not to this skill on its own.
