A human supervisor, a reasoning model as architect, and a browser-driving model as engineer.
Briefs are the interface. Anything irreversible is human-gated, and credentials never pass through
an agent.
The books are written while the thing they describe is still running, not afterwards from memory.
That is why they contain the mistakes: a grow log that only records the harvests is not a log, it
is an advertisement.
The software the third book describes is open source. If a claim in one of these books matters to
your decision, the file that implements it is public and you should go and read it.