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JetBrains InnovationHub ships ThinkRail, an open-source agentic IDE
JetBrains' InnovationHub published ThinkRail, an Apache-2.0 agentic IDE that runs the pi coding agent in isolated git worktrees, according to thinkrail.ai.
- New headline Was: “ThinkRail from JetBrains”
- Our desk filed its story
- thinkrail.ai is now reporting this
JetBrains' InnovationHub has published ThinkRail, an open-source agentic IDE that pairs the pi coding agent with isolated git worktrees and a spec graph the agent is meant to read, according to the project's site1.
ThinkRail treats a local git repository as a project and cuts workspaces as git worktrees, each with its own branch and working directory so several agents can run in parallel without changing the main checkout until a user merges a branch1.
The site describes ThinkRail as a thin host: pi runs in-process and owns models, skills, compaction, and cost, while ThinkRail owns the workspace, editor, and protocol and does not assemble prompts behind the user1.
Users install a local launcher and run thinkrail to open a browser UI; the documented install command pulls a script from the JetBrains/thinkrail GitHub repository1.
The product is licensed Apache-2.0 as a JetBrains InnovationHub project, and the site says the repository is developed spec-first, with connected spec files living beside the code1.
The site does not independently confirm download numbers, commercial support, or how ThinkRail relates to JetBrains' existing IDEs; those points are not established on the landing page1.