Pluggable by design: An agent mesh for software modernization that adopts the next model release

In our previous post, we walked through the agent mesh for software modernization architecture we built on Red Hat AI for modernizing legacy systems at the scale that mission environments actually require. The post covered the harness pattern, the workflows the harness orchestrates, and the KPI framework for measuring success. It also explained why we run coding agents on Devstral and non-coding agents on Ministral, inside a platform that operates in disconnected environments.This post is about the next layer of that story: the pluggability.In the regulated environments where agent mesh for so