GitHub Next demos 'Ace' agents

GitHub Next used an April 26 conference talk by researcher Maggie Appleton to show Ace, a multiplayer environment for software teams working with coding agents. (youtube.com) Appleton said current agentic coding tools are built for one developer at a time, even though software teams still need shared planning, review, and context. (youtube.com) In her demo, Ace paired real-time collaboration with proactive agents and sandboxed micro virtual machines, or isolated cloud workspaces, for rapid prototyping and exploration. (youtube.com) A companion write-up described Ace as an “Agent Collaboration Environment” with multiplayer chat, shared cloud-based microVMs, collaborative agent prompting, and team dashboards. (app.daily.dev) The problem Ace is aimed at is coordination, not raw code generation. Appleton said solo agent workflows can create duplicate work, conflicting changes, and features teammates never agreed to build. (youtube.com) That pitch fits GitHub Next’s broader research agenda. The lab says it prototypes tools that explore the future of software development rather than shipping finished products. (githubnext.com) GitHub Next’s recent projects have pushed in the same direction: Realtime GitHub explored multiplayer collaboration across a repository, while Copilot Workspace explored an agentic development environment for everyday tasks. (githubnext.com 1) (githubnext.com 2) Its Agentic Workflows project also framed agents as team-visible automation running on GitHub, with logs, permissions, security controls, and auditability built around existing workflows. (githubnext.com) Ace appears to pull those threads together into one interface: shared planning, shared execution space, and shared visibility into what agents are doing. That is an inference from the demo description and GitHub Next’s published project history, not a formal product roadmap. (youtube.com) (githubnext.com 1) (githubnext.com 2) (githubnext.com 3) GitHub Next’s public Ace site currently offers a macOS desktop app and a terminal interface for macOS and Linux, but the lab has not described Ace as a general release product. (ace.githubnext.com) (githubnext.com) The talk’s closing argument was narrower than “agents write more code.” Appleton presented Ace as a way to keep teams aligned while agents speed up the implementation work around them. (youtube.com)