LangGraph Fault Tolerance: Building Resilient Agents with Retries, Timeouts, and Error Handlers

Short summary

LangGraph introduces production-grade fault tolerance through @retry decorators, TimeoutPolicy, and ErrorHandler nodes—eliminating manual restarts for transient failures. Offers fine-grained retry strategies (exponential backoff, custom conditions) and timeout management with built-in LangSmith observability. Closes the gap between checkpointing (state capture) and active recovery (graceful failure handling).

• •New @retry decorator, TimeoutPolicy, and ErrorHandler nodes provide comprehensive fault tolerance for production agents
• •Supports exponential backoff, custom retry conditions, and granular timeout management at node/subgraph/graph levels
• •Built-in observability via LangSmith traces tracks retry rates and identifies problematic external services

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