This can be achieved by utilizing tests. So the SWE agent will write up a set of tests as it understands the task. These are the functional requirements, which should/could be easily inspected by the BI (biological intelligence).

Once the functional requirements have been set, the SWE agent can iterate over and over again until the tests pass. At this point it doesn't really matter what the solution code looks like or how it's written, only that the functional requirements as defined via the tests are upheld. New requirements? Additional tests.