langchain-security-basics

Quick Review

Excellent security skill with comprehensive coverage of LangChain security best practices. The description clearly identifies when to use the skill (API key safety, prompt injection, secure LLM interactions). Task knowledge is strong with detailed code examples for secrets management, input sanitization, safe tool execution, output validation, and audit logging. Structure is clear with logical step-by-step progression and helpful security checklist. Novelty is moderate-to-good: while security concepts are well-known, consolidating LangChain-specific implementations (prompt injection patterns, tool whitelisting, Pydantic validation for LLM outputs) saves significant tokens and provides production-ready code patterns that would require research and iteration. Minor improvement possible: could reference separate config files for allowed commands/patterns, though current single-file format is acceptable for this scope.