LangChain - LangGraph for Stateful Agents
You want to build a LangGraph flow where an agent decides between three paths based on input: 'start', 'process', or 'end'. Which approach best handles this complex decision?
You want to build a LangGraph flow where an agent decides between three paths based on input: 'start', 'process', or 'end'. Which approach best handles this complex decision?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand multi-path decision handling
LangGraph uses nodes connected by edges with conditions to direct flow based on input.Step 2: Apply this to three input options
One node with three edges, each edge having a condition lambda checking for 'start', 'process', or 'end', cleanly handles the decision.Final Answer:
Create one node with three edges, each having a condition lambda checking input equality. -> Option DQuick Check:
Multiple edges + conditions = complex decisions [OK]
Quick Trick: Use multiple edges with condition lambdas for choices [OK]
Common Mistakes:
MISTAKES- Splitting into separate graphs unnecessarily
- Ignoring conditions and relying on agent logic alone
- Making flow linear and losing decision power
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