For anyone interested, we tried the adapter approach in a coding agent harness: https://jeffhub.ai/notes/jeff-v1-3

What's interesting is that these are two adapters: Jeff making simple decisions (which tool to call, how to parameterize it) and Jeff routing between different version of Qwen. There are lots of applications for this approach.

In terms of Jeff-Code specifically, treat it as an experiment. Swift-Qwen is faster, but also - I understand - worse on benchmarks. The interesting bit is the concept here.