ACP Brings JetBrains on Board (zed.dev)

JetBrains has joined the Agent Client Protocol (ACP) effort as a co-developer and will add ACP support across its entire IDE lineup (IntelliJ IDEA, PyCharm, WebStorm, etc.), letting developers use any ACP-compatible agent inside the JetBrains ecosystem. JetBrains had been exploring standardizing agent support—for its own Junie agent and others like Codex and Gemini CLI—and after evaluating options chose ACP. This marks a major validation: ACP moves from a promising spec (launched with Google and Gemini CLI) toward a real industry standard backed by a large IDE vendor and millions of users. Technically, ACP decouples agents from editors with a single, editor-agnostic protocol: agents implement one interface and can run in any ACP-capable client; editors adopt one interface and can surface any agent. That eliminates per-editor integrations, reduces duplicated engineering effort, and lowers vendor lock-in for users. Immediate implications include broader interoperability (Zed, Neovim, Emacs, and now JetBrains IDEs), a much larger addressable developer audience for agent authors, and faster ecosystem convergence. For agent developers and users alike, JetBrains’ commitment makes ACP the practical route to reach diverse IDEs and accelerate the plug-and-play agent workflow.