performance-optimization

performance-optimization is a skill for Claude Code from Rahulchaube1/-Skills-for-Agents. It costs 45 tokens per session (3,041 once invoked), scanned A, original, no licence file.

A guide for finding and fixing application performance problems. Performance includes how quickly pages load and respond, including measurements known as Core Web Vitals.

In plain words
What is it for?
Use it when load times or Core Web Vitals need improvement, performance requirements exist, or profiling has exposed a bottleneck.
Why use it?
It helps address slow loading, poor responsiveness, and regressions introduced by code changes. It also focuses work on bottlenecks found through profiling, which measures where an application spends time.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agent-skills plugin — 64 skills, 7 commands shipped together

Good fit Use it when load times or Core Web Vitals need improvement, performance requirements exist, or profiling has exposed a bottleneck.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rahulchaube1/-skills-for-agents/performance-optimization
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Rahulchaube1/-Skills-for-Agents --skill performance-optimization
Clone the repo
git clone --depth 1 https://github.com/Rahulchaube1/-Skills-for-Agents

Made for: Claude Code.

Or install agent-skills, the plugin that ships this one along with the rest of its 64 skills, 7 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for performance-optimization

README.md
[![agentmods](https://agentmods.dev/badge/skills/rahulchaube1/-skills-for-agents/performance-optimization/github.svg)](https://agentmods.dev/skills/rahulchaube1/-skills-for-agents/performance-optimization)
Your own site
<a href="https://agentmods.dev/skills/rahulchaube1/-skills-for-agents/performance-optimization"><img src="https://agentmods.dev/badge/skills/rahulchaube1/-skills-for-agents/performance-optimization/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for performance-optimization

Your own site · 80×15
<a href="https://agentmods.dev/skills/rahulchaube1/-skills-for-agents/performance-optimization"><img src="https://agentmods.dev/badge/skills/rahulchaube1/-skills-for-agents/performance-optimization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,041 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00045 $0.03041
Opus 5 $0.00023 $0.01520
Sonnet 5 $0.00009 $0.00608
Haiku 4.5 $0.00005 $0.00304

Measured 9d ago against content hash dcf97a8aada9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

performance-optimization scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/performance-optimization/SKILL.md · 356 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 356 lines · 45 tokens per session scan A dcf97a8aada9

Subscribe to this mod's changes

performance-optimization is a skill published in the GitHub repository Rahulchaube1/-Skills-for-Agents (2 stars, last pushed 2mo ago), with no licence file. It adds 45 tokens to every session and 3,041 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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