[brahyam]

The amount of time it would take to write the formal spec for the code I need is more than it would take to generate the code so doesn't sound like something that will go mainstream. Except for those industries where formal code specs are already in place.

[MarcoDewey]

Yes, this test-driven approach will likely increase generation time upfront. However, the payoff is more reliable code being generated. This will lead to less debugging and fewer reprompts overall, which saves time in the long run.

Also agree on the specification formality. Even a less formal spec provides a clearer boundary for the LLM during code generation, which should improve code generation results.