langchain

Quick Review

Excellent skill covering LangChain framework comprehensively. The description clearly conveys capabilities for building LLM applications with agents, chains, and RAG. Task knowledge is strong with complete working examples for common patterns (agents, RAG pipelines, memory management, tool calling). Structure is well-organized with progressive complexity, though SKILL.md is dense (~400 lines); some content could move to reference files. Novelty is solid—while LangChain itself simplifies LLM work, the skill provides meaningful value by consolidating patterns, best practices, and integration examples that would otherwise require extensive documentation searching. Minor improvements: more content in reference files to keep main file concise, and deeper coverage of advanced patterns like custom chains.