How to stop Cursor from breaking large codebases
Cursor can cause problems in large codebases with more than 500 files because it may change code without seeing what depends on it. A small refactor can break several other modules if Cursor misses the connection.
can help with coding style and project rules, but they do not solve the deeper structure problem. Cursor may not know that changing a file like utils/auth.ts can affect 12 other files.
One proposed approach is to analyze the repository first with , build a locally, and then give Cursor a compressed plus only the files that matter for the task. This can use fewer tokens and produce better results than giving Cursor many raw files.
Key points
- Cursor may miss code relationships in with 500 or more files.
- can guide style and conventions, but not full project structure.
- Changing a central file like utils/auth.ts can affect many other files.
- can be used to build a local before asking Cursor to edit code.
- A compressed plus relevant files may save tokens and improve results.