Use the right tool for the job.

If you need a piece of information that is buried somewhere, or a high-level summary/distillation of a larger body of info, then subagents may be the right tool for the job.

If you need all the gathered context for later use (i.e. distilled context is insufficient), then subagents probably are not the right tool for the job.

if your corebase requires a million tokens, then youre probably going to break more than you fix