[braebo]

My experience is the opposite. The latest Claude seems to excel in my personal medium-sized (20-50k loc) codebases with strong existing patterns and a robust structure from which it can extrapolate new features or documentation. Claude Code is getting much better at navigating code paths across many large files in order to provide nuanced and context-aware suggestions or bug fixes.

When left to its own devices on tasks with little existing reference material to draw from, however, the quality and consistency suffers significantly and brittle, convoluted structures begin to emerge.

This is just my limited experience though, and I almost never attempt to, for example, vibe-code an entire greenfield mvp.