review-performance

review-performance is a command for Claude Code from Ashikparvez89/larouex-fullstack-plugin. It costs 0 tokens per session (158 once invoked), scanned A, a copy of review-performance, MIT.

A command that reviews an application for slow loading, inefficient code, and poor browser performance using Web Vitals and Lighthouse checks.

In plain words
What is it for?
Use it to assess mobile and desktop performance and receive prioritized recommendations for frontend, database, caching, and Azure or Railway improvements.
Why use it?
It helps locate causes of slow pages, such as large bundles, unoptimized images, inefficient database queries, unnecessary React updates, or weak caching.

Command for Claude Code

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

Part of the larouex-fullstack-builder plugin — 80 commands, 12 agents shipped together

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.

agentmods
npx agentmods add commands/ashikparvez89/larouex-fullstack-plugin/review-performance
Clone the repo
git clone --depth 1 https://github.com/Ashikparvez89/larouex-fullstack-plugin

Made for: Claude Code.

Or install larouex-fullstack-builder, the plugin that ships this one along with the rest of its 80 commands, 12 agents.

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 review-performance

README.md
[![agentmods](https://agentmods.dev/badge/commands/ashikparvez89/larouex-fullstack-plugin/review-performance.svg)](https://agentmods.dev/commands/ashikparvez89/larouex-fullstack-plugin/review-performance)
Your own site
<a href="https://agentmods.dev/commands/ashikparvez89/larouex-fullstack-plugin/review-performance"><img src="https://agentmods.dev/badge/commands/ashikparvez89/larouex-fullstack-plugin/review-performance.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 158 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00000 $0.00158
Opus 5 $0.00000 $0.00079
Sonnet 5 $0.00000 $0.00032
Haiku 4.5 $0.00000 $0.00016

Measured 2d ago against content hash 5d3f39f56a2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

review-performance 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 2d 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.

Origin

This is a copy

100% identical to review-performance — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

commands/review-performance.md · 2 lines

What it actually says

Analyze application performance using code-review-agent and monitoring-observability-agent. Check Core Web Vitals (LCP < 2.5s, FID < 100ms, CLS < 0.1), bundle size analysis, image optimization (next/image, WebP format), font optimization (next/font), code splitting and lazy loading, caching strategies (stale-while-revalidate), database query efficiency (indexes, N+1 prevention), unnecessary re-renders, and prefetching strategies. Analyze Lighthouse CI scores across mobile and desktop. Review platform-specific performance: Azure (Application Insights metrics, cold starts) or Railway (resource limits, scaling). Provide prioritized optimization recommendations with estimated impact on load time and user experience. Include specific code examples for quick wins and long-term improvements.

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. 2d ago First seen · 2 lines · 0 tokens per session scan A 5d3f39f56a2a

Subscribe to this mod's changes

review-performance is a command published in the GitHub repository Ashikparvez89/larouex-fullstack-plugin (3 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 158 tokens. A static security scan graded it A with 0 findings. It is 100% identical to review-performance, differing in 0 lines, and is treated as a copy.

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