Microsoft VS Code 1.140 Ships Multi-Repository Agent Support

Microsoft shipped Visual Studio Code 1.140 on September 30, introducing architectural changes that expand what Copilot agents can do.

Key points:

• The Agent Host Protocol (AHP) moves Copilot agents out of the core editor process into an isolated host process • A single Copilot agent session can now span and coordinate work across multiple repositories at once • The isolated process architecture prevents agent operations from degrading editor performance • Agents can coordinate builds, check dependencies, and run terminal commands across separate codebases simultaneously • Microsoft also confirmed Azure will support NVIDIA's new Open Agent Safety Platform

This makes multi-repository agent orchestration a mainstream developer capability rather than a specialized one. For developers working across more than one codebase regularly, this is worth learning.

If you work across multiple repositories, upgrade to VS Code 1.140 and set up one multi-repo Copilot workspace to test whether it delivers on the promised coordination benefits.

Why It Matters: Multi-repository agent coordination moves from specialized tooling to mainstream IDE capability. This is particularly valuable for developers managing microservices or working across interconnected codebases.