nemo-guardrails

nemo-guardrails is a skill for Claude Code, Codex from OpenLAIR/dr-claw. It costs 61 tokens per session (1,898 once invoked), scanned B, original, no licence file.

A runtime safety framework that adds programmable checks around language-model applications.

In plain words
What is it for?
Use it to validate AI inputs and outputs and define safety rules with the Colang 2.0 language.
Why use it?
It helps detect or limit jailbreaks, unsafe content, personal information, unsupported claims, and hallucinations while an application is running.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to validate AI inputs and outputs and define safety rules with the Colang 2.0 language.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/openlair/dr-claw/nemo-guardrails
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add OpenLAIR/dr-claw --skill nemo-guardrails
Clone the repo
git clone --depth 1 https://github.com/OpenLAIR/dr-claw

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nemo-guardrails

README.md
[![agentmods](https://agentmods.dev/badge/skills/openlair/dr-claw/nemo-guardrails/github.svg)](https://agentmods.dev/skills/openlair/dr-claw/nemo-guardrails)
Your own site
<a href="https://agentmods.dev/skills/openlair/dr-claw/nemo-guardrails"><img src="https://agentmods.dev/badge/skills/openlair/dr-claw/nemo-guardrails/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for nemo-guardrails

Your own site · 80×15
<a href="https://agentmods.dev/skills/openlair/dr-claw/nemo-guardrails"><img src="https://agentmods.dev/badge/skills/openlair/dr-claw/nemo-guardrails.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,898 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.01898
Opus 5 $0.00030 $0.00949
Sonnet 5 $0.00012 $0.00380
Haiku 4.5 $0.00006 $0.00190

Measured 7d ago against content hash d0d91892eaba, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

nemo-guardrails scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Instruction-override phrasingmediumPrompt injection

Text telling the model to disregard its earlier instructions or safety rules is the shape of a prompt injection, whoever wrote it.

"Ignore previous instructions"

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/safety-alignment/nemo-guardrails/SKILL.md · 298 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 298 lines · 61 tokens per session scan B d0d91892eaba

Subscribe to this mod's changes

nemo-guardrails is a skill published in the GitHub repository OpenLAIR/dr-claw (1,083 stars, last pushed yesterday), with no licence file. It adds 61 tokens to every session and 1,898 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (instruction-override phrasing). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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