GitHub's August update for Copilot in Visual Studio 2026 lets organization and enterprise owners publish custom agents that work across all their repositories, and adds a control for how much reasoning effort a model spends on a task. A Git agent can now review uncommitted changes or commits before a pull request, with findings shown inline. The update reaches every Copilot plan, including the free tier.
What changed
Custom agents were configured per repository, and model reasoning depth was not adjustable in Visual Studio.
What it unlocks
Publishing a shared set of custom agents across an organization's repositories, and dialling reasoning depth up or down per task to control token spend.
- 3 thinking effort levels: Low/Medium/High
What you need to act on it
- Visual Studio 2026
- a GitHub organization for org-level custom agents
- GitHub and Azure DevOps repositories for Git agent review
Sources