Public upstreamAddy OsmaniPublic source

Addy Osmani performance optimization

Profile an observed bottleneck and compare measurements before and after a change.

Workflow

Addy Osmani’s performance guide spans frontend delivery, server execution and database queries, with profiling and measured evidence before prioritizing a fix.

Use when

Investigate measured slowness or a known performance requirement.

Required inputs

Workload and performance symptoms
Source, profiles and target performance budget

Expected outputs

Evidence-backed optimization changes
Comparable before-and-after measurements

Prerequisites

A reproducible workload and access to the relevant profiling tools.
Field performance data needs its own measurement source; this skill provides no live metrics.

Installation

Agent

Run this command in your project after reviewing the instructions and access terms. Install complete upstream directories to keep referenced rules and scripts.

npx skills add https://github.com/addyosmani/agent-skills/tree/aeac41d4d005999432bb7312f7ff06383a91d59d/skills/performance-optimization --skill performance-optimization --agent claude-code

Project file: .claude/skills/performance-optimization/SKILL.md

Read the setup guide

Selection brief

This brief helps you choose the skill. Read the complete upstream SKILL.md and companion files for its actual instructions.

# Addy Osmani performance optimization (addy-osmani-performance)
Addy Osmani’s performance guide spans frontend delivery, server execution and database queries, with profiling and measured evidence before prioritizing a fix.

## Use when
- Investigate measured slowness or a known performance requirement.

## Required inputs
- Workload and performance symptoms
- Source, profiles and target performance budget

## Prerequisites
- A reproducible workload and access to the relevant profiling tools.
- Field performance data needs its own measurement source; this skill provides no live metrics.

## Expected outputs
- Evidence-backed optimization changes
- Comparable before-and-after measurements

Source: https://github.com/addyosmani/agent-skills/blob/aeac41d4d005999432bb7312f7ff06383a91d59d/skills/performance-optimization/SKILL.md
Full SKILL.md: https://agenttaste.dev/skills/addy-osmani-performance/SKILL.md

## Popularity evidence
- 108,660 GitHub repo stars — addyosmani/agent-skills; checked 2026-10-20. Source: https://github.com/addyosmani/agent-skills/stargazers
- 60,118 skill installs (all time) — addyosmani/agent-skills / performance-optimization · skills.sh · all time; checked 2026-10-20. Source: https://skills.sh/addyosmani/agent-skills/performance-optimization
Adoption counts are not user ratings or guarantees of quality.