Mate started as a hallway conversation at SymfonyCon Amsterdam 2025. A few weeks later it shipped in Symfony AI 0.1, and in April it had its first public outing at SymfonyLive Berlin. Now it comes back to the conference where it began.

You'll learn what Mate is, the principles behind it, and how it gives coding agents real insight into a running Symfony application. Then we'll look at the two biggest changes since Berlin. Mate dropped its MCP server for a native CLI, after we measured how agents actually discover and use tools. And Agent Skills now ship with the packages they belong to, so the people who build a bundle can also teach agents how to use it.

There will be a live demo, and I'll be honest about the wrong turns along the way.