Memory Leak Detection

This handles the detective work of tracking down memory leaks in Node.js and Python apps. You get heap snapshot utilities, profiling helpers, and middleware to monitor memory growth over time. The reference guides cover the usual suspects: event listeners that never detach, forgotten timers, cache bloat, and circular references. It pushes WeakMap and WeakRef pretty hard for caching, which is the right call if you're holding references to objects you don't fully control. Most useful when you're debugging OOM crashes or watching container memory creep up in production. The monitoring patterns are more practical than the basic profiler examples.

skills.sh installs: 589
GitHub stars: 379
last updated: Aug 21, 2026

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Install

$ npx -y skills add aj-geddes/useful-ai-prompts --skill memory-leak-detection --agent claude-code

Installs into .claude/skills of the current project.

Files

Overview

Identify and fix memory leaks to prevent out-of-memory crashes and optimize application performance.

When to Use

Memory usage growing over time
Out of memory (OOM) errors
Performance degradation
Container restarts
High memory consumption

Quick Start

Minimal working example:

import v8 from "v8";
import fs from "fs";

class MemoryProfiler {
  takeSnapshot(filename: string): void {
    const snapshot = v8.writeHeapSnapshot(filename);
    console.log(`Heap snapshot saved to ${snapshot}`);
  }

  getMemoryUsage(): NodeJS.MemoryUsage {
    return process.memoryUsage();
  }

  formatMemory(bytes: number): string {
    return `${(bytes / 1024 / 1024).toFixed(2)} MB`;
  }

  printMemoryUsage(): void {
    const usage = this.getMemoryUsage();

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