If you use Cursor, Claude Code, or Windsurf daily, you've probably had this experience:
You open a fresh chat, ask for a small fix, and twenty minutes later the AI has rewritten your API layer, added three new dependencies, and switched your data-fetching pattern "for consistency."
The model isn't broken. It's contextless.
Every new session starts from zero. It doesn't know your stack, your conventions, or the things it must never touch. So you spend the first ten minutes re-explaining — and the last hour undoing.
Here's what fixed it for me.
