Eclipse AI Coder

1. Overview

An extension for the Eclipse IDE that brings AI-driven inline completion to the editor.

Local Model Support: Works with locally running models (e.g., Ollama, LM Studio).
Cloud LLM Support: Supports Codestral (by Mistral AI)—requires a user-provided API key.
Completion Triggers:
- Automatic or manual via shortcut:
  - Inline completion: Ctrl + Shift + Space
  - Complete selected code: Ctrl + Shift + Space
Code Generation/Editing: Inline edit/generate via instructions: Ctrl + Shift + 1
Context Control: View and modify the prompt context.
Insights: Token count, request durations, and status for each request.
Java-Specific Features: Deep understanding of Java projects (adds imports, variables in scope to prompts).
Multiline Toggle: Switch between single-line and multiline completions.

Option B: Use the update site:

https://hetzge.github.io/aicoder/eclipse/beta1

Feature	Eclipse AI Coder	Tabnine	GitHub Copilot	Copilot4Eclipse	Tabby	GitLab Duo	Amazon Q
Inline Completion	✅	✅	✅	✅	✅	✅	✅
Eclipse Support	✅	✅	✅	✅	✅	✅	✅
Non-commercial	✅	❌	❌	❌	❌	❌	❌
Open Source	✅	❌	❌	❌	✅	❌	❌
Manual Trigger	✅	❌	❌	✅	✅	❌	❌
Bring Your Own Key	✅	❌	❌	❌	✅	❌	❌
Local LLMs	✅	❌	❌	❌	✅	❌	❌
Toggle Multiline	✅	❌	❌	❌	❌	❌	❌
Context Control	✅	❌	❌	❌	❌	❌	❌
Next Edit Suggestion	❌	❌	✅	❌	❌	❌	❌
LLM Providers	Local, Mistral	Tabnine	GitHub Copilot	GitHub Copilot	Deepseek, Local, Mistral	GitLab	Amazon

API Key: Free (currently). Get one here.
Configuration: Set the API key in Eclipse preferences (screenshot: images/settings.png).

Setup Steps:
1. Install Ollama (download).
2. Pull a model (e.g., Qwen2.5-Coder):
```
ollama pull qwen2.5-coder:3b
```
3. Configure in Eclipse:
  - Base URL: http://localhost:11434
  - Model: qwen2.5-coder:3b
  Models must support suffix input; example: images/ollama-template.png

Shortcut	Selection	Action
`Ctrl` + `Shift` + `Space`	❌	Trigger inline completion at cursor position.
`Ctrl` + `Shift` + `Space`	✅	Trigger completion/correction of selected code.
`Ctrl` + `Shift` + `1`	❌	Open dialog to generate code at cursor via instruction.
`Ctrl` + `Shift` + `1`	✅	Open dialog to edit selected code via instruction.
`Ctrl` + `3`	❌	Open quick access for code generation instructions at cursor.
`Ctrl` + `3`	✅	Open quick access for editing instructions on selected code.

Setting	Description
Enable Multiline Completion	Allow multiline suggestions.
Enable Autocomplete	Trigger completions automatically (or only via shortcut if disabled).
Only on Change Autocomplete	Trigger only after file changes (e.g., typing).
Ignore JRE Classes	Exclude Java Runtime Environment classes from context (assumed known by LLMs).
Cleanup Code on Apply	Format Java code when applying suggestions.
Maximum Prefix Size	Lines before cursor to include in prompt.
Maximum Suffix Size	Lines after cursor to include in prompt.
Maximum Tokens	Limit tokens generated by the LLM.
Debounce (ms)	Delay before autocompletion triggers (to avoid rapid recalculations).

Context	Description	Filetype
Project Informations	Project name, location, Java version (for Java projects).	All
File Tree	Tree structure of project files.	All
Dependencies	List of project dependencies (WIP).	All
Open Editors	Content of currently open files.	All
Super (Java)	Interfaces of supertypes in the current Java file.	Java
Scope (Java)	Interfaces of types in the current scope.	Java
Imports (Java)	Interfaces of imported types.	Java
Package (Java)	Interfaces of types in the current package.	Java
User	Custom user-provided content. Add content in context view (right click)	All
Last Edits	Source code around recently edited locations.	All
Clipboard	Content of the clipboard.	All
Fill in Middle	Current edit location + surrounding context lines.	All