The agents are only blocked by this when the features they implement are extremely simple.

The average feature I spec and have an agent implement takes an hour or two (Either Opus 5.5 or DeepSeek 4.1 Flash, both at high and using subagents).

In-between the agents do not build that often because that is instructed in my setup.

They build maybe every 20mins when the target is Rust.

Ofc the models do not work like this by default. In fact they want to build all the time.

But as always, you need to tune the harness/setup for what you're using.

IMHO: if you use these models with Rust w/o those constraints/instructions "you're holding it wrong".