"[LLM-generated code] is ultra-useful if you can close the loop between the LLM and the execution environment (with an “Agent” setup). There’s lots to say about this, but for the moment: it’s a semi-effective antidote to hallucination: the LLM generates the code, the agent scaffolding runs the code, the code generates errors, the agent feeds it back to the LLM, the process iterates."

Okay, so who's doing this today and how?

This question came up recently in the Aider discord and not many had a good answer.

Aider is great but the SDK is weak and second-class, so interacting with the repl frustrates agent-dev.

Sidecar (which can run independently of Aide IDE, not to be confused with Aider), https://github.com/codestoryai/sidecar/ is one agent that was mentioned. Many of that projects issues are auto-responded to by a PR-creating agent.

Anything else I'm missing?

In general, I know how I would build an agentic dev-loop, I'm just looking for a good SDK that handles prompting and diff merging etc. i.e. Aider as an SDK or similar.