Cursor Composer Mastery: Coordinating Multi-File Feature Refactoring

How to write effective context rules, `.cursorrules`, and architectural prompts to ship complete features across 10+ files.

Prerequisites

Cursor IDE installed
Any modern web project (Next.js, Vite)

Step 1: Step 1: Structuring a Robust `.cursorrules` File

Instruct the model on your exact project tech stack, package conventions, forbidden libraries, and test requirements.

Step 2: Step 2: Multi-File Context Mentions with @Folders and @Docs

Reference specific subdirectories and documentation bookmarks rather than letting the agent guess API signatures.