Scalix Coder — VS Code Extension

AI-powered coding assistant for Visual Studio Code, powered by the Scalix platform.

Features

• Sidebar Chat Panel — Persistent chat interface with streaming AI responses and markdown rendering
• Tab Completion — AI-powered inline code suggestions as you type
• Inline Chat (Cmd+I) — Edit code in-place with AI assistance
• Context-Aware Commands — Explain, Fix, and Refactor code selections
• Codebase Search — Symbol-level search across your entire project
• Model Picker — Dynamic model selection fetched from your Scalix account
• Inline Diff Viewer — See file changes before and after AI modifications
• Git Checkpoints — Create and restore checkpoints of your workspace
• Session History — Save and restore chat sessions
• Status Bar — Real-time model info, connection status, and token usage
• Context Bar — Visual indicator of token usage with warning thresholds
• Permission Modes — Control tool execution (plan, default, auto, yolo)
• Slash Commands — /new, /clear, /model, /mode, /compact, /cost, /attach, /stop, /key, /settings, /term, /help
• @-Mentions — @file, @folder, @selection, @terminal, @codebase, @web
• Settings Panel — In-chat settings with General, Models, and Tools tabs
• Bundled Agent Engine — The Scalix Coder engine (40 tools) ships inside the extension; no separate install required
• Open in Terminal — Launch the full Scalix CLI from the extension

Getting Started

1. Install

Install Scalix Coder from the VS Code Marketplace or Open VSX (Cursor/Windsurf/VSCodium). The agent engine is bundled — nothing else to install.

Optional: if you also use the terminal CLI (npm install -g scalix), the extension shares its configuration (~/.scalix-coder/config.json) and can be pointed at that copy via scalix.cliPath.

To build from source instead:

cd vscode-extension
npm install
npm run build
npm run package

Then install the generated .vsix via Command Palette → "Extensions: Install from VSIX...".

2. Add your API key

1. Create a key at console.scalix.world/org/keys — it starts with scalix_sk_. Create it inside a project (project-scoped) to unlock platform tools too.
2. Run Scalix: Set API Key from the Command Palette and paste it.

The key is stored in VS Code Secret Storage — never in plaintext settings. The default model is scalix-lumio-lite (included with every plan).

The Get started with Scalix Coder walkthrough (Help → Get Started) walks through these steps interactively.

Commands

Context Menu

Right-click on selected code to access:

• Scalix: Explain Selection
• Scalix: Fix Selection
• Scalix: Refactor Selection
• Scalix: Inline Chat

Settings

Supported Models

Models are fetched dynamically from your Scalix account. Scalix models use the scalix-lumio-* family — every plan includes scalix-lumio-lite, and higher tiers unlock additional Scalix models as they become available. Use Scalix: Select Model to see the models on your plan.

Bring your own key (BYOK)

Prefer your own endpoint? Set scalix.provider to openai and point scalix.openaiBaseUrl at any OpenAI-compatible server (OpenAI, OpenRouter, Ollama, LM Studio, vLLM, ...) — with or without the /v1 suffix — then run Scalix: Set API Key to store that provider's key (kept in Secret Storage, separate from your Scalix key). Chat, tab completion, inline chat, and the model picker all follow the selected provider. Scalix Cloud platform tools are Scalix-only and pause while a BYOK provider is active.

Development

cd vscode-extension
npm install
npm run watch    # Build with file watching
npm run lint     # Run ESLint

Press F5 in VS Code to launch the Extension Development Host.

Architecture

Requirements

• VS Code 1.85.0 or later
• Scalix API key (scalix.world)
• Node.js 18+ (for IPC bridge to CLI)

(c) 2024-2026 Scalix World Private Limited. All rights reserved. Licensed under the Scalix EULA — see the License tab on the Marketplace listing, or scalix.world/terms.