langgraph-code-review

Catches common bugs in LangGraph state management, graph structure, and async patterns. When reviewing LangGraph code, check for these categories of issues. - Identifies 20+ critical issues including state mutations, missing reducers, invalid conditional edge returns, and checkpointer configuration errors - Covers state schema problems like improper use of add_messages , full-state returns, and Pydantic models without annotations - Detects graph structure issues: missing entry points, unreachable nodes, incomplete conditional paths, and undeclared Command destinations - Flags async anti-patterns, tool integration mistakes (unpaired tool calls, parallel interrupts), and production checkpointing errors - Includes a 10-item code review checklist for validating LangGraph implementations