3 sessions on c++23 with a coding agent: the agent failed at least once in 3, and 0 finished without a human stepping in.
Takeaway: Next time I'd ask for the stack-size and static-storage constraints to be checked up front, since two of the three crashes came from oversized structs living on the stack rather than logic bugs.
Takeaway: Next time I'd specify the persistent-arena/variable-registry design up front — the query-vs-clause arena confusion cost the most back-and-forth.
Takeaway: Next time I'd ask upfront for the stack-usage rules (no post-init malloc, bounded everything) to be double-checked against test harness patterns, since two of the three real bugs were stack overflows from large structs being copied or placed on the call stack instead of static storage.