Bella – an Eclipse/ADT plug-in that can use ARC-1 as its SAP tool backend

[ktaubmann]

Hi everyone 👋

I'd like to share Bella, an open-source (MIT) Eclipse plug-in that brings Claude and other models into the ABAP editor in ADT.

What it does

• Explain, generate, rework and implement code via right-click in the ABAP editor, plus inline completion and a chat
• Writes only into the editor buffer, with a diff preview first. Nothing is saved or activated behind your back
• Write/create/activate in the system only after confirmation; releasing transports is always refused
• Models: Claude (API key or subscription via Claude Code CLI), GitHub Copilot CLI, or any OpenAI-compatible endpoint (e.g. Ollama)

How it works with ARC-1
Bella ships its own ADT tools (read, context, where-used, ATC, …) that run through your existing ADT logon. ARC-1 can be added under Preferences → Bella → SAP-Tools & ARC-1, over HTTP or locally via npx -y arc-1@latest. By default Bella's ADT tools win when both offer the same capability; you can prefer ARC-1 instead when governance should run centrally (abaplint, audit log, rate limits, package allowlist).

Status
v0.4.2. The ARC-1 integration and the chat tools need broader testing, so feedback from people running ARC-1 is very welcome.

• Repo & releases: https://github.com/ktaubmann/Bella
• Update site: https://bella.kilian-taubmann.de/
• Write-up: https://kilian-taubmann.de/blog/bella-ai-assistant-for-abap-in-eclipse/

Thanks to the ARC-1 maintainers for the great foundation!