When an AI agent runs for many turns, it eventually hits context limits and must compress or discard earlier messages. This is often invisible, yet critical - lost context can cause the agent to forget constraints, user preferences, or prior decisions. The framework moves on.
Source: [Dev.to](https://dev.to/nilofer_tweets/context-compaction-visualizer-see-exactly-what-your-ai-agent-forgot-before-it-costs-you-1o8n)