#agent-client-protocol

JetBrains AI: Junie, the Agent Client Protocol, and the Case for an Open IDE Ecosystem

While the Gartner Leaders compete on model quality and agent speed, JetBrains is playing a different game: building an open protocol (ACP) that lets any agent run inside any JetBrains IDE, paired with its own Junie autonomous agent and deep IDE-native context. This article examines JetBrains' 2026 AI strategy, the Junie agent capabilities, the Agent Client Protocol standard, and why the IDE-as-control-plane thesis may matter more than the model war.