JetBrains 2026 Direction: ACP Registry for One-Click Agent Install, BYOK for Any Model, Native Codex and Claude Agent Integration in IntelliJ 2026.1

JetBrains AI Blog·medium signal

JetBrains published their 2026 IDE direction: multiple AI-powered entry points (chat, terminal, long-running background agents) coexisting with classic workflows. IntelliJ 2026.1 ships ACP Registry (browse and install AI agents in one click), native Codex and Claude Agent integration, git worktrees for handing branches to agents, database access for AI agents, quota-free next-edit suggestions, and Bring Your Own Key (BYOK) for any model including locally hosted. Philosophy: classic IDE workflows don't get displaced — AI is additive, not replacive.