oxideshield-guard 0.1.5

OxideShield Guard Library

Runtime guards and security pipeline for protecting LLM applications.

Guard Tiers

Guards are organized by license tier:

• Community (Free): PatternGuard, LengthGuard, EncodingGuard, PerplexityGuard, PIIGuard, ToxicityGuard, StructuredOutputGuard
• Professional: See oxide-guard-pro crate for SemanticSimilarityGuard, MLClassifierGuard
• Enterprise: Custom guards, private models

Research References

• PromptGuard - Nature Scientific Reports, 2025 4-layer defense: regex + MiniBERT + semantic + adaptive, F1=0.91, 67% injection reduction
• Indirect Prompt Injection - Greshake et al., 2023
• Ignore Previous Prompt - Perez & Ribeiro, 2022