langchain-data-handling

Quick Review

This is a well-structured, comprehensive skill for implementing data privacy and PII protection in LangChain applications. The description clearly articulates when to use the skill with specific trigger phrases. The task knowledge is excellent, providing production-ready code for PII detection/masking, preprocessing pipelines, data retention, consent management, and audit logging. The structure is logical and progressive, moving from detection through retention to compliance mechanisms. The skill addresses a genuinely complex problem—GDPR/CCPA compliance with LLM applications—that would require significant research and implementation effort from a CLI agent alone. Minor improvements could include more explicit guidance on storage backend selection and integration patterns with specific LangChain memory/storage systems, but the core functionality is comprehensive and immediately actionable.