LangChain Context Window Cheat Sheet

Manage prompt history gracefully

Last Updated: November 21, 2025

Focus Areas

Focus
Chunk conversation history
Attach summarized prompting

Commands & Queries

langchain memory.buffer
Buffer history
summary_chain.run(history)
Compress context
llm call --tokens 4096
Track usage

Summary

Context trimming keeps LangChain flows within token budgets.

💡 Pro Tip: Periodically condense old exchanges to a short summary.
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