Some months ago I was evaluating command output compressors to integrate into Dirac[1] as that seemed like an easy win that would compliment and compound with Dirac's other mechanisms.

I tested rtk among these and it was actually a net negative in both CPU time and accuracy, the latter would throw LLMs way off and make it hard to recover. If you are building a coding agent, I'd hard pass on rtk.

   ~ $ time grep Return * 2> /dev/null | wc -l
   966
   grep Return * 2> /dev/null 0.36s user 0.02s system 98% cpu 0.382 total
   wc -l 0.00s user 0.00s system 1% cpu 0.380 total


   ~ $ time rtk grep Return * 2> /dev/null | wc -l
   260
   rtk grep Return * 2> /dev/null 4.10s user 17.10s system 92% cpu 23.008 total
   wc -l 0.00s user 0.00s system 0% cpu 23.007 total

So yeah I am still on the lookout for a credible CLI wrapper, do let me know if you have any in mind.

[1] https://dirac.run/