AX

AX, agent experience, is DX with an agent as the user. It asks how easily an agent that starts with an empty context can orient itself, find the right command, verify its own work and stay within the rules of the codebase. Where DX is about a person's day, AX is about a session: everything the agent needs has to be discoverable from inside the environment, because there is no osmosis and no colleague to ask.

Poor AX looks like an agent that is capable in general and clumsy in your repo. It runs the wrong package manager, misses the tests that live in an unusual folder, reinvents a helper that already exists, or ships a change that violates a rule everyone on the team knows and nobody wrote down. The fix is rarely a better model; it's usually a better environment.

The tools of AX are ordinary: an AGENTS.md file that states the commands and conventions, automated checks that fail loudly and fast, tools that reach the systems the task touches, and a repo layout that makes the important things findable. Treat every stumble in an AFK run as an AX bug and fix the environment rather than the prompt. Because the agent is the only one there for most of the run, AX is the support it gets.