GoKawiilJetBrains launches ThinkRail, an agentic IDE built around isolated git workspaces
JetBrains introduced ThinkRail, a coding IDE built around the pi coding agent that runs tasks in isolated git-worktree workspaces, each with its own branch and directory. The tool maintains 'living specs' and reusable skills to retain project knowledge, manages pull request workflows including CI checks and merging, and automatically shelves finished or dormant workspaces. JetBrains says it plans to add full extension support so the IDE can build its own tools based on usage patterns.
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By isolating agent work into separate git worktrees, JetBrains appears to be addressing a common pain point in AI-assisted coding: agents interfering with a developer's active checkout or losing context between sessions. The planned extension support suggests JetBrains wants ThinkRail to become more self-customizing over time, which could set it apart from other agentic coding tools if it delivers on that promise. Its integration with GitHub PR workflows positions it to compete with existing AI coding assistants that focus mainly on code generation rather than full development lifecycle management.
- ThinkRail uses git worktrees to let coding agents work in isolated branches without disrupting the main checkout.
- The IDE retains project knowledge through 'living specs' and reusable skills rather than starting fresh each session.
- JetBrains plans to add extension support so ThinkRail can build custom tools based on how users work.
Source: github.com, 2026-10-25
Published there as: “JetBrains Thinkrail”
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