debug:express

What problem does it solve?

Debugging Express.js and Node.js applications can be fragmented and time-consuming. This Skill provides a structured, repeatable approach with patterns, tooling guidance, and best practices to accelerate root-cause analysis.

Core Features & Use Cases

• Phase-based debugging methodology for Express apps, covering common error patterns and diagnostic steps.
• Guidance on tooling and workflows, including DEBUG environment, Chrome DevTools, VS Code, and Morgan request logging.
• Real-world use cases for middleware issues, routing problems, CORS errors, async error handling, memory leaks, and unhandled rejections.

Quick Start

• Enable debugging with DEBUG=express:* node app.js and attach a debugger (Chrome DevTools or VS Code) as described in the guide.
• Use the provided diagnostic middleware patterns to instrument requests and responses without altering business logic.
• Refer to the skill examples for common error patterns and phase workflows to reproduce and resolve issues quickly.