I think most of us are ending up with a similar workflow.

Mine is: 1) discuss the thing with an agent; 2) iterate on a plan until i'm happy (reviewing carefully); 3) write down the spec; 4) implement (tests first); 5) manually verify that it works as expected; 6) review (another agent and/or manually) + mutation testing (to see what we missed with tests); 7) update docs or other artifacts as needed; 8) done

No frameworks, no special tools, works across any sufficiently capable agent, I scale it down for trivial tasks, or up (multi-step plans) as needed.

The only thing that I haven't seen widely elsewhere (yet) is mutation testing part. The (old) idea is that you change the codebase so that you check your tests catch the bugs. This was usually done with fuzzers, but now I can just tell the LLM to introduce plausible-looking bugs.