VS Code AI Toolkit - AI Developer Tools Tool

Overview

AI Toolkit for Visual Studio Code is a Microsoft-maintained, open-source VS Code extension that centralizes model discovery, prompt engineering, agent authoring, testing, and basic deployment workflows inside the editor. It provides a Model Catalog that surfaces models from GitHub, OpenAI, Anthropic, Google/Foundry, and local runtimes (ONNX, Ollama), plus an interactive Playground for chat-style and multi-modal experimentation. ([github.com](https://github.com/microsoft/vscode-ai-toolkit)) The extension’s Agent Builder focuses on prompt-first agent design: generate starter prompts, iterate with model responses, chain prompts for structured outputs, enable function-calling, and connect agents to external tools via MCP (Model Control Protocol). It also includes bulk-run testing, dataset-driven evaluation (F1, relevance, similarity, coherence), model conversion/quantization tooling, and options to fine-tune locally or via Azure-hosted flows; recent releases emphasize tighter Microsoft Foundry integration and Copilot/Agent Skills alignment. ([marketplace.visualstudio.com](https://marketplace.visualstudio.com/items?itemName=ms-windows-ai-studio.windows-ai-studio))

GitHub Statistics

• Stars: 1,914
• Forks: 213
• Contributors: 18
• License: MIT
• Last Updated: 2026-02-04T10:22:41Z

The repository is actively maintained by Microsoft with a healthy open-source footprint: roughly 1.9k stars, ~212 forks, and 18 contributors visible in the public repo. The project shows regular commits and a recent development cadence (multiple commits in January–February 2026, including activity on Feb 4, 2026), indicating ongoing feature work and documentation updates. Open issues are tracked in the repository, reflecting an active backlog and community engagement around installation, model integrations, and platform-specific behavior. ([github.com](https://github.com/microsoft/vscode-ai-toolkit))

Installation

Install via npm:

code --install-extension ms-windows-ai-studio.windows-ai-studio

In VS Code: Extensions view → search for "AI Toolkit for Visual Studio Code" → Install

Follow the extension's installation guide and docs for platform-specific prerequisites (Foundry/Azure sign-in for cloud features).

Key Features

• Model Catalog: browse and compare models from GitHub, OpenAI, Anthropic, Google/Foundry, ONNX, and Ollama.
• Playground: interactive chat-style testing with multi-modal attachments and adjustable model parameters.
• Agent Builder: prompt generation, chaining, variables, function-calling, and scaffolded production-ready code.
• MCP integration: connect agents to external tools via Model Control Protocol (stdio or HTTP/SSE).
• Evaluation & Bulk Run: run prompts across models, evaluate with F1/relevance/similarity/coherence, add custom evaluators.

Community

AI Toolkit has a large installed base on the Visual Studio Marketplace (marketplace shows ~867,741 installs) and an active Microsoft-maintained GitHub project (≈1.9k stars, ~18 contributors). Documentation, Microsoft Community Hub posts, and an open issues tracker show frequent updates and public discussion (January–February 2026 releases added Copilot Skills, Foundry-first flows, Anthropic/Entra auth, and new tooling). Marketplace listing is free; users report active feature requests and platform-specific questions in GitHub issues and community posts. For cloud deploy and Foundry features, an Azure subscription and appropriate RBAC are prerequisites. ([marketplace.visualstudio.com](https://marketplace.visualstudio.com/items?itemName=ms-windows-ai-studio.windows-ai-studio))

Key Information

• Category: Developer Tools
• Type: AI Developer Tools Tool