Roo Code Review 2026: Open-Source Cline Fork with Multi-Agent Mode
Roo Code was an open-source VS Code extension that forked from Cline to build a multi-agent AI coding system inside your IDE. It reached 23,300+ GitHub stars and 1.52 million active installs before announcing its shutdown on April 20, 2026 — with all products ceasing on May 15, 2026. If you used it, here is the full story of what made it exceptional and what to do next. What Is Roo Code? The Open-Source AI Dev Team Inside VS Code Roo Code is a VS Code extension that turns your editor into an autonomous AI coding agent — not just a code completion tool, but a system that reads files, runs commands, browses the web, and executes multi-step engineering tasks without waiting for per-action approval. Unlike GitHub Copilot or Tabnine, which insert completions reactively, Roo Code operates with full agency over your local environment: it can open terminals, edit multiple files, install packages, run tests, and iterate on failures. The tool reached 23,300+ GitHub stars and 1.52 million active VS Code installs with 3 million cumulative downloads as of April 2026, driven by a community of 300+ active contributors. What differentiated Roo from standard AI coding assistants was its multi-mode architecture — separate operating modes for coding, architecture planning, debugging, and orchestration — each configurable to use a different underlying LLM. This per-mode model routing made it the most cost-efficient open-source AI coding agent available for complex, multi-file tasks before its May 2026 shutdown. ...