Comment by kurtextrem

I found this prompt works well to nudge it to use a better grep as the start, then just keep using grep (Cursors instant grep in my case):

``` - For planning, prefer using morph-mcp `codebase_search` - subagent that takes in a search string and tries to find relevant context. Best practice is to use it at the beginning of codebase explorations to fast track finding relevant files/lines. Do not use it to pin point keywords, but use it for broader semantic queries. "Find the XYZ flow", "How does XYZ work", "Where is XYZ handled?", "Where is <error message> coming from?" ```

(see also https://news.ycombinator.com/item?id=48205911; having higher quality results at the beginning of a thread seem to improve the output vs. having faster search later on).