Why Cursor Keeps Forgetting Your Code (And How to Fix It)

If you've used Cursor for any serious project, you've probably hit this: you're 90 minutes into a productive session, Cursor's AI has learned your codebase patterns, understands your architecture, knows about the bug you're tracking... and then the context window fills up. Suddenly your AI partner is asking basic questions about your project structure. The patterns it learned? Gone. The bug context? Vanished. Why Cursor Loses Context Cursor uses a sliding context window. Unlike Claude Code which explicitly runs compaction (and tells you about it), Cursor silently drops older messages when the window fills up. You might not even notice until the AI starts giving generic responses instead of project-specific ones. The problem is worse with Cursor because: No warning — There's no "context is getting full" indicator Silent drop — Older context just disappears from the window No recovery — Once context is dropped, you can't get it back natively Crash vulnerability — If Cursor crashes, sessi