AI Dev Marketplace Tool

A VS Code extension that adds AI-powered helpers to your editor:

• Generate Unit Tests — produces idiomatic tests for the active file/selection.
• Generate Design Document — high-level design doc in Markdown.
• Code Review — structured review (bugs, security/OWASP, perf, style, tests).
• Generate LLD — low-level design with mermaid class & sequence diagrams.
• Review PR — review a git diff against any base branch (e.g. origin/main).
• Sidebar Chat — conversational assistant in the Activity Bar.
• MCP Servers — connect to Model Context Protocol servers via stdio.

Quick start

npm install
npm run build

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

Configure

Open Settings → search for aiDevTool:

Example MCP config:

"aiDevTool.mcpServers": [
  { "name": "filesystem", "command": "npx", "args": ["-y", "@modelcontextprotocol/server-filesystem", "${workspaceFolder}"] }
]

Commands

All available via the Command Palette (AI: prefix) and the sidebar toolbar:

• AI: Generate Unit Tests
• AI: Generate Design Document
• AI: Review Current File
• AI: Generate Low-Level Design
• AI: Review Pull Request
• AI: Connect to MCP Server

Project Layout

src/
  extension.ts          # activation
  ai/aiService.ts       # provider-agnostic LLM client
  features/             # one file per feature
  mcp/mcpManager.ts     # stdio MCP client
  webview/              # sidebar webview
  util/editor.ts        # editor helpers

Security

• API keys are stored in VS Code SecretStorage after first entry.
• Webview uses a strict CSP with a per-load nonce.
• The PR review feature shells out to git; ensure your repo is trusted.