We didn't add this for the post. It's just what the swarm already does, and it's the same machinery behind Script Workflows.
What we hadn't done is measure it against Anthropic's own yardstick, with our own production data.
You say here that "since the start" you wanted to do a "code mode like env".But the LLM that wrote your blog post says your system was already doing this and you just hadn't measured it...? How is it that you managed a reduction in token costs by changing nothing?
And can you provide a human-written explanation of the experimental methodology that gets you this miraculous, literally unbelievable 99.2% reduction in tokens?