GitHub Unveils ACE

GitHub Labs has released ACE (Agent Collaboration Environment) as a research prototype, announcing that it will soon enter technical preview.

The core direction is not maximizing individual productivity, but rather a structure where teams align first and agents work afterward. The presenter explained that the existing PR/issue-centered workflow cannot handle collaboration in the age of agents.

ACE operates as a session-based multiplayer chat space, handling both team members and coding agents in one place.

• Each session has a backend composed of a micro VM.
• Each session comes with an isolated cloud sandbox and a separate Git branch.
• Work results are isolated from each other, enabling parallel work and fast switching.
• It is designed to allow planning, context gathering, decision-making, and development to continue in one space.

Through this tool, GitHub appears to be aiming to reduce the alignment problem that becomes more important as agents generate code faster. The initial version is still rough, and the plan is to test it with a few thousand people before improving it.