Memory leak detector

Skill a5c-ai/babysitter/library/specializations/desktop-development/skills/memory-leak-detector

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Install

npx -y skills add a5c-ai/babysitter --skill memory-leak-detector

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What its author says it does

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Detect memory leaks in desktop applications through heap analysis and object tracking

SKILL.md

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memory-leak-detector

Detect memory leaks in desktop applications through heap snapshot analysis, object tracking, and growth pattern detection.

Capabilities

Capture and compare heap snapshots
Track object allocation growth
Identify retained objects
Detect common leak patterns
Generate leak reports
Suggest fixes

Input Schema

{
  "type": "object",
  "properties": {
    "projectPath": { "type": "string" },
    "framework": { "enum": ["electron", "native", "qt"] },
    "duration": { "type": "number", "default": 60 }
  },
  "required": ["projectPath"]
}

Detection Approach

// Heap snapshot comparison
const v8 = require('v8');

function detectLeaks(iterations = 3, intervalMs = 10000) {
  const snapshots = [];

  const interval = setInterval(() => {
    global.gc(); // Requires --expose-gc
    const snapshot = v8.getHeapStatistics();
    snapshots.push(snapshot);

    if (snapshots.length >= iterations) {
      clearInterval(interval);
      analyzeGrowth(snapshots);
    }
  }, intervalMs);
}

function analyzeGrowth(snapshots) {
  const growth = snapshots[snapshots.length - 1].used_heap_size -
                 snapshots[0].used_heap_size;
  console.log(`Heap growth: ${growth / 1024 / 1024} MB`);
}

Common Leak Patterns

Event listeners not removed
Closures holding references
Global variable accumulation
Timer/interval not cleared
DOM node detachment

Related Skills

electron-memory-profiler
startup-time-profiler