GitHub Copilot CLI gets smarter with custom agents

GitHub Copilot CLI just leveled up. Instead of typing the same commands or re-explaining context every time, developers can now embed their team’s expertise into reusable agents—custom tools that act consistently across the terminal, IDE, and GitHub. These agents aren’t just smarter prompts; they’re defined workflows that enforce formatting rules, accessibility standards, and security requirements automatically. The result? Less friction, fewer one-off explanations, and more reliable outputs that align with your project’s standards.

The shift from prompts to workflows

Custom agents turn repetitive CLI tasks into standardized processes. Need code cleanup? A generic agent might suggest fixes, but a custom agent applies your team’s formatting rules, accessibility checks, and review requirements every time. These agents are defined in simple Markdown files stored directly in your repository, making them reviewable, versionable, and sharable. The profile specifies the agent’s role, available tools, and guardrails—ensuring outputs stay safe and consistent.

Built for the terminal, ready for your stack

GitHub Copilot CLI was already designed to run scripts, call APIs, and interact with repositories. Now, it can host these specialized agents, letting developers tailor Copilot’s behavior without leaving the terminal. Whether it’s enforcing WCAG 2.1/2.2 accessibility standards or automating project-specific checks, the agents operate with the same context your team uses in pull requests and reviews. It’s a small change with big implications: fewer manual steps, more predictable results, and workflows that scale with your project.

---

Source: GitHub Blog. AI-assisted editorial synthesis — TechnoExpress.