GitHub is positioning custom agents in Copilot CLI as a way for teams to encode project context, preferred tools, and recurring development workflows directly into command-line assistance.
That matters because many AI coding interactions still live as disposable prompts. Reusable agents can make those steps easier to review, share, and standardize across a team.
The practical shift is from asking an assistant for isolated help to building repeatable workflows for debugging, implementation, and repository-specific tasks.