Roo Code

Roo Code is an AI-powered development agent that provides a full team of specialized AI modes directly inside your code editor.¹⁾²⁾ Forked from Cline, it extends the original with a multi-mode architecture featuring Architect, Code, Debug, and Orchestrator modes. With over 22,700 GitHub stars, Roo Code has rapidly grown into a major player in the AI coding agent space.

GitHub: RooCodeInc/Roo-Code | Website: https://roocode.com

Key Features

Multi-Mode Architecture — Specialized modes for different tasks: Architect (design), Code (implementation), Debug (troubleshooting), and Orchestrator (coordination)
Orchestrator Mode — Delegates complex tasks to specialized sub-agents, coordinating multi-step workflows automatically
Model Agnostic — Supports OpenAI, Anthropic, Google Gemini, AWS Bedrock, Groq, Cerebras, Ollama, and any OpenAI-compatible API
Custom Modes — Define your own specialized agent modes with custom system prompts and tool access
MCP Integration — Full Model Context Protocol support with marketplace of community tools
File and Terminal Control — Creates, edits, and manages files with diff views; executes terminal commands with real-time output
Browser Automation — Headless browser for testing, screenshot capture, and interaction with web applications
Checkpoint System — Workspace snapshots at each step for rollback and comparison

Architecture

Roo Code is built in TypeScript as a VS Code extension (with JetBrains support planned):³⁾

Mode System — Each mode has its own system prompt, tool permissions, and behavioral rules
Orchestrator Engine — Routes tasks to appropriate modes based on analysis of the request
Tool Layer — Shared tool infrastructure for file ops, terminal, browser, and MCP
Configuration — .roo/ directory for project-level mode customization and rules
Community Ecosystem — Supports community-built mode packs and MCP server integrations

Usage Example

# Install from VS Code Extensions marketplace
# Search for "Roo Code"
 
# In the Roo Code sidebar panel:
# Switch to Architect mode:
# "Design a microservices architecture for a payment system"
 
# Switch to Code mode:
# "Implement the payment gateway service based on the architecture"
 
# Switch to Debug mode:
# "The payment webhook handler is returning 500 errors, investigate"
 
# Use Orchestrator mode for complex multi-step tasks:
# "Build a complete REST API with auth, tests, and documentation"

How It Works

graph TD A[User Task] --> B[Orchestrator Mode] B --> C{Task Analysis} C --> D[Architect Mode] C --> E[Code Mode] C --> F[Debug Mode] C --> G[Custom Mode] D --> H[Design Documents] H --> E E --> I[Implementation] I --> J[Run Tests] J --> K{Tests Pass?} K -->|No| F K -->|Yes| L[Review & Commit] F --> M[Root Cause Analysis] M --> E G --> N[Specialized Task Output] N --> B L --> O[Task Complete]

Modes in Detail

Mode	Purpose	Tools Available
Architect	System design, planning, documentation	Read files, search, web browse
Code	Implementation, refactoring, feature development	All tools including file write and terminal
Debug	Error investigation, performance analysis	Read, search, terminal, browser
Orchestrator	Multi-step coordination, task delegation	All modes, sub-agent spawning
Custom	User-defined specialized behaviors	Configurable per mode

References

¹⁾

Official Website

²⁾

https://github.com/RooCodeInc/Roo-Code

³⁾

https://docs.roocode.com

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