memory-debug

Diagnose memory leaks in Node.js applications by analyzing V8 heap snapshots.

1|Updated Mar 6, 2026

Search Tags:#performance #debugging #memory leak #nodejs #garbage collection #heap snapshot

Ready to run

npx skills add https://github.com/chavangorakh1999/sde-skills --skill memory-debug

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: memory-debug
Source: https://github.com/chavangorakh1999/sde-skills/tree/main/sde-debugging/skills/memory-debug
Command: npx skills add https://github.com/chavangorakh1999/sde-skills --skill memory-debug

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps identify and resolve memory leaks in Node.js applications, preventing performance degradation and unexpected crashes due to excessive memory consumption.

Core Features & Use Cases

Leak Confirmation: Differentiates between normal memory growth and actual leaks.
Heap Snapshot Analysis: Guides you through taking and analyzing V8 heap snapshots to pinpoint the source of leaks.
Common Leak Patterns: Explains and provides solutions for frequent leak causes like event listener leaks, unbounded caches, and uncleared timers.
Use Case: Your Node.js service's memory usage has been steadily increasing over days, leading to occasional Out-of-Memory errors. Use this Skill to diagnose the root cause and implement a fix.

Quick Start

Use the memory-debug skill to diagnose a memory leak in the running Node.js application.

Frequently Asked Questions about memory-debug

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I diagnose a memory leak in my Node.js application?▼

To diagnose a Node.js memory leak, you analyze V8 heap snapshots to pinpoint abnormal memory growth and identify common leak patterns like unbounded caches or uncleared timers. This process differentiates normal growth from actual memory leaks.

Why does my Node.js service keep running out of memory over time?▼

Node.js services run out of memory due to leaks caused by event listener accumulation, unbounded caches, or uncleared timers. Analyzing heap snapshots helps identify these common patterns to prevent performance degradation and unexpected crashes.

How do I take and analyze a V8 heap snapshot to find what is leaking memory?▼

Taking a V8 heap snapshot captures memory allocation to help identify leak sources. Analyzing these snapshots guides you through pinpointing exactly which objects, event listeners, or caches are causing the memory leak.

What is the difference between normal memory growth and an actual memory leak in Node.js?▼

Normal memory growth stabilizes after warming up, while an actual memory leak shows continuous, unbounded consumption. Analyzing heap snapshots confirms leaks by identifying unreleased objects like accumulated event listeners or uncleared timers causing performance degradation.

Can I use this approach to fix event listener accumulation and uncleared timers?▼

Yes, analyzing V8 heap snapshots identifies common leak patterns like event listener accumulation and uncleared timers. This provides actionable insights to resolve these specific memory management issues and prevent unexpected crashes in Node.js.

What are the limitations of using heap snapshots for Node.js garbage collection debugging?▼

Heap snapshots capture memory state at a single point, making it difficult to trace dynamic garbage collection issues over time. They require manual comparison to identify unbounded caches or event listener accumulation effectively.