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Introduction to DevoxxGenie - AI Code Assistant for IntelliJ IDEA

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What is DevoxxGenie?​

DevoxxGenie is a fully Java-based LLM Code Assistant plugin for IntelliJ IDEA, designed to integrate with both local LLM providers and cloud-based LLM services.

With DevoxxGenie, developers can leverage the power of artificial intelligence to improve code quality, solve problems faster, and learn new concepts, all within their familiar IDE environment.

Key Features​

DevoxxGenie provides a rich set of features to enhance your development workflow:

  • Multiple LLM Providers: Connect to local LLMs like Ollama, LMStudio, and GPT4All, as well as cloud-based providers like OpenAI, Anthropic, Google, Grok, Mistral, Groq, Kimi, GLM, and more.
  • MCP Support: Model Context Protocol servers for agent-like capabilities, with a built-in Marketplace for discovering and installing servers.
  • Agent Mode (v0.9.4+): Enable agent mode for autonomous codebase exploration using read-only tools. Parallel sub-agents allow concurrent investigation of multiple aspects, each configurable with a different LLM from any provider.
  • Spec Driven Development (v0.9.7+): Define tasks in Backlog.md, browse them in the Spec Browser with Task List and Kanban Board views, then let the Agent implement them autonomously.
  • CLI Runners (v0.9.9+): Execute prompts and spec tasks via external CLI tools (Claude Code, GitHub Copilot, Codex, Gemini CLI, Kimi) directly from the chat interface or the Spec Browser.
  • ACP Runners (v0.9.10+): Communicate with external agents via the Agent Communication Protocol (JSON-RPC 2.0) with structured streaming, conversation history, and capability negotiation.
  • Inline Code Completion (v0.9.6+): AI-powered code suggestions as you type using Fill-in-the-Middle (FIM) models via Ollama or LM Studio.
  • Commands: Built-in and custom slash commands (/test, /explain, /review, /find, etc.) for common development tasks. (Previously called "Custom Prompts" / "Skills".)
  • Skills: LLM-activated SKILL.md capabilities loaded from disk, compatible with .claude/skills and .agents/skills directories. Requires Agent Mode.
  • Git Diff/Merge: Show Git Diff/Merge dialog to accept LLM suggestions.
  • Chat History: Your chats are stored locally, allowing you to easily restore them in the future.
  • Project Scanner: Add source code (full project or by package) to prompt context when using compatible LLM providers.
  • Token Cost Calculator: Calculate the cost when using Cloud LLM providers.
  • Web Search: Search the web for a given query using Google or Tavily.
  • Streaming responses: See each token as it's received from the LLM in real-time.
  • DnD Images: Drag and drop images with multimodal LLM support.
  • Appearance Customization: Customize chat interface colors, spacing, and font sizes.
  • 100% Java: Built entirely in Java using the Langchain4J library.

Why Use DevoxxGenie?​

  • Multiple LLM options: Choose between running models locally for privacy or using cloud providers for more powerful models.
  • Seamless IDE Integration: Work with AI assistance without leaving your development environment.
  • Enhanced Context Awareness: DevoxxGenie can understand your project structure and incorporate relevant code context.
  • Focused on Java Development: Built by Java developers for Java developers.
  • Open Source: Community-driven development and transparent about its capabilities and limitations.

Getting Started​

Ready to get started with DevoxxGenie? Check out our Installation Guide and Quick Start guides to begin using DevoxxGenie in your development workflow.