Next Intel

NextIntel is a high-performance static analysis extension for VS Code, specifically architected for the Next.js App Router. It scans your codebase in real-time to ensure your application follows best practices for architecture, performance, and the React Server Components (RSC) paradigm.

✨ Features

🧠 Real-Time Intelligence

• RSC Boundary Guard: Automatically detects when you're accidentally using Browser APIs (window, localStorage) or React Hooks (useState, useEffect) inside Server Components.
• Live Diagnostics: Get immediate feedback via red squiggles as you save or switch files.
• Smart Quick-Fixes: When a boundary violation is detected, a 💡 lightbulb appears. One click adds the "use client"; directive to the top of your file.

📖 Rich Code Examples

• Isomorphic Code Examples: Every single rule includes detailed valid and invalid code snippets showing exactly what is wrong and how to refactor it.
• Multiple Solution Scenarios: Complex rules include multiple example sequences inside the Issue Detail Panel to cover varying code patterns.

🎯 Advanced Analysis Rules (App Router + Next.js 15)

• Dynamic revalidatePath Checking (RV-003): Flags dynamic segment cache purges missing the target type parameter.
• Component Caching Suggestion (RE-005): Recommends Next.js 15 'use cache' directive to memoize expensive operations.
• optimizePackageImports Config Guard (PF-007): Promotes tree-shaking for heavy libraries inside next.config.js.
• Server Leak Boundary Guard (SC-SECURITY-002): Ensures sensitive data-access files explicitly import 'server-only'.

⚡ Performance-First Design

• Debounced Scanning: Intelligent analysis that waits for you to finish typing/saving before running, keeping your editor responsive.
• AST-Powered: Uses a custom-built, deep-analysis engine (powered by ts-morph) that understands your code structure better than a standard linter.

📊 Health Scoring

• Intelligence Score: A real-time health score of your project’s architecture, deducting points for critical errors and warnings.

🛠️ Getting Started

1. Open any Next.js project.
2. NextIntel will automatically activate and begin scanning your active files.
3. Check the Problems tab in VS Code for any detected architectural risks.

⚙️ Configuration

NextIntel works out of the box with zero configuration for standard Next.js projects.

🏗️ Architecture

NextIntel is built as a monorepo consisting of:

• engine: The core static analysis and graph engine.
• rules: A deterministic rule system for Next.js best practices.
• cli: A standalone command-line tool for project-wide audits.
• vscode-extension: The real-time editor integration.

Built by developers who want to master the App Router with confidence.