Claude Agent in JetBrains IDEs (blog.jetbrains.com)

JetBrains has integrated Anthropic’s Claude Agent directly into its IDEs via the built-in AI chat and included it in the JetBrains AI subscription at no extra cost. This is the first third‑party agent inside JetBrains IDEs and brings Claude’s agentic coding features — powered by the Claude Code/Agent SDK and the new Claude 4.5 Sonnet model — from the command line into a native IDE experience. There’s no plugin or extra login: pick Claude Agent in the AI chat and it downloads and initializes automatically, signaling JetBrains’ move toward an extensible, multi‑agent ecosystem. Technically, the Claude Agent uses the JetBrains MCP server to access IDE capabilities, enabling project‑aware reasoning, multi‑file edits with diff previews, and approval‑based operations (edits and commands require user consent unless “Brave mode” is enabled). Plan mode separates “thinking” from “doing” so you can preview step‑by‑step strategies, and context management lets you add files, folders, or images for more precise responses. For developers the result is less context switching and lower friction to use advanced agent workflows, while also opening the door to more third‑party agents and tighter integration between frontier models and developer tooling.