Overview
ThinkRail is a JetBrains InnovationHub agentic IDE (Apache 2.0) built around the in-process pi coding agent, git worktree workspaces, SPEC.md living specs, skills, and mcp integration—positioned as spec-first open competition to cursor-class agent environments.
Recent Developments
- 2026-10-25: Public open-source push and HN visibility alongside v0.2.0 release track (2026-10-25-jetbrains-thinkrail-agentic-ide)
- 2026-10-18: v0.2.0 — MCP from
mcp.json, continuous Changes review, pi 1.1.0, subagent concurrency controls (2026-10-26-jetbrains-thinkrail-blog-mcp)