protectai/llm-guard
A security toolkit for LLM interactions: scanners for prompt injection, PII, toxicity, and secrets, applied to inputs and outputs. Agentiquette scores it 68/100 (B-tier), methodology v1.0, scored 2026-07-07.
Key facts
| Category | Governance / guardrails |
|---|---|
| License | MIT |
| Maintainer | Protect AI |
| Compatible agents | generic |
| File patterns | |
| Triggering | manual-reference |
| GitHub metrics | 3,152 stars · 416 forks · 37 open issues (fetched 2026-07-07) |
| Last commit | 2025-12-15 |
| Created | 2023-07-27 |
Editorial analysis
Security-team DNA rather than ML-team DNA, visible in the scanner taxonomy: injection, secrets, and leakage treated as the attack surface they are. The maintenance slowdown after the corporate acquisition is the material fact; injection defense is an arms race, and stale scanners decay silently. Watch status.
Risks
Seven-month commit gap at fetch time following Protect AI's acquisition; scanner freshness against new injection techniques is the concern.
Evidence notes: Safety: scanner coverage is broad and well-categorized. Maintenance: 7-month gap at fetch; flagged for staleness watch. Composability: plain scanner API, drops into any pipeline.
Install and first run
pip install llm-guardAlternatives in this category
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[](https://agentiquette.com/index/repos/llm-guard)Frequently asked questions
Is protectai/llm-guard good?
protectai/llm-guard scores 68/100 (B-tier) on Agentiquette's methodology v1.0, scored 2026-07-07. Strengths and weaknesses are in the editorial analysis; the score is explained dimension by dimension in the scorecard.
What is protectai/llm-guard for?
A security toolkit for LLM interactions: scanners for prompt injection, PII, toxicity, and secrets, applied to inputs and outputs.
Is protectai/llm-guard maintained?
Last commit 2025-12-15, 37 open issues at fetch time (2026-07-07). Maintenance is scored at 40 of 100.
Maintainer of protectai/llm-guard? Claim this listing and suggest corrections.