Claude Code Context Window Rot: Why Sessions Get Dumber (And How to Fix It)

📰 Dev.to · Amit Ben-Ari

Learn why Claude Code sessions get less effective over time and how to improve their performance

intermediate Published 6 May 2026

Action Steps

Open a new Claude Code session to start with a clean context window
Use the 'forget' function to remove irrelevant context and improve model performance
Split large tasks into smaller ones to maintain a focused context window
Test and evaluate the effectiveness of Claude Code sessions over time
Apply techniques to mitigate context window rot and improve overall session quality

Who Needs to Know This

Developers and AI engineers working with Claude Code can benefit from understanding the context window rot issue and how to address it, improving their overall productivity and code quality

Key Insight

💡 Context window rot can significantly impact Claude Code performance, but techniques like using 'forget' and splitting tasks can help mitigate the issue