startup-time-profiler

SkillDev tools

Profile and optimize application startup time for desktop applications

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Account requirements not reviewed. Check the skill instructions before use; ahel provides instructions and does not run this skill.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use the startup-time-profiler skill

What this skill tells your AI

The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/desktop-development/skills/startup-time-profiler/SKILL.md and read by ahel’s review.

Profile and optimize application startup time, identifying bottlenecks in initialization, module loading, and rendering.

Capabilities

Measure cold and warm start times
Identify module loading bottlenecks
Profile initialization phases
Generate timeline visualizations
Provide optimization recommendations
Set up CI performance tracking

Input Schema

{
  "type": "object",
  "properties": {
    "projectPath": { "type": "string" },
    "framework": { "enum": ["electron", "tauri", "native"] },
    "iterations": { "type": "number", "default": 5 }
  },
  "required": ["projectPath"]
}

Electron Startup Profiling

// Add to main.js
const startTime = Date.now();

app.on('ready', () => {
  console.log(`App ready: ${Date.now() - startTime}ms`);
});

// Enable tracing
app.commandLine.appendSwitch('trace-startup');
app.commandLine.appendSwitch('trace-startup-file', 'startup-trace.json');

Optimization Techniques

Lazy load modules
Defer non-critical initialization
Optimize bundle size
Use V8 snapshots
Preload critical resources

Benchmarks

Metric	Good	Acceptable	Poor
Cold start	< 2s	< 4s	> 6s
Warm start	< 1s	< 2s	> 3s
Window visible	< 1.5s	< 3s	> 5s

Related Skills

memory-leak-detector
bundle-size-analyzer

Signals

GitHub stars: 2k
Forks: 112
Last commit: Sep 2026

Advanced

Item type: skill
Key: startup-time-profiler
Source: github.com/a5c-ai/babysitter

github.com/a5c-ai/babysitter