Contrary to the title and intro, this appears to be an agentic _workflow_ builder/runner, not an advanced “agent harness”

A few things:

- they note: “nothing in this post proves it actually works in most cases”

- the DAG sounds good, but LLMs often split tasks into smaller pieces than they need to, which can cause them to lose the forest for the trees

- the forced JSON interplay, in my experience, causes even gpt-5.6-sol to lose a few “IQ points”

For anyone reading this, this tutorial is much more reminiscent of how folks were building “agents” pre-Claude Code.

tl;dr the “orchestrator” here is just a software loop, and the LLM prompts restrict flexibility of the planner/workers