I see the authors don't argue it well enough, but one could use AI agents with simple grep and that proved to be efficient enough to be the default in Claude Co

I see the authors don't argue it well enough, but one could use AI agents with simple grep and that proved to be efficient enough to be the default in Claude Code. I personally turned of indexing feature in Cursor and I use it without it - I haven't noticed any accuracy drop, though my codebase is not enterprise-size one.