Architecture¶

Eclipse Peon AI follows the Eclipse RCP / e4 application model.

Module Structure¶

llm-peon/
├── pom.xml                         # Parent POM with Tycho configuration
├── org.sterl.llmpeon/              # Main Eclipse plugin (e4)
│   └── src/org/sterl/llmpeon/
│       ├── parts/                  # UI components
│       │   ├── AIChatView.java     # Main chat view
│       │   ├── widget/             # SWT widgets
│       │   ├── tools/              # LLM tools
│       │   └── config/             # Preferences
│       └── ...
├── org.sterl.llmpeon.core/         # Standalone Maven JAR (non-OSGi)
├── releng/
│   ├── llmpeon-target/             # Target platform (Eclipse 2025-12)
│   ├── llmpeon-feature/           # Eclipse feature
│   └── llmpeon-update-site/       # p2 repository
└── doc/                           # Documentation

Technology Stack¶

Eclipse RCP / e4: Pure e4 application model
Java 21: Modern Java features
Maven + Tycho: Build system for Eclipse plugins
LangChain4j: LLM integration framework

UI Components¶

Chat View¶

The main view implemented as an e4 Part with SWT controls.

Custom SWT widget for displaying chat messages with markdown support.

Tools¶

LLM-powered tools that can interact with the Eclipse workspace: - File reading/writing - Search - Context awareness

Dependency Management¶

Third-party libraries are embedded via Bundle-ClassPath into the lib/ folder. The target platform provides OSGi, SWT, JFace, and other Eclipse runtime components.