rampstackco/claude-skills · skills/performance-optimization/SKILL.md

performance-optimization skillA

performance-optimization is agent-read markdown (skill) from rampstackco/claude-skills: Diagnose and fix web performance issues including Core Web Vitals (LCP, INP, CLS), bundle size, asset optimization, render performance, and runtime efficiency. Use this skill whenever the user wants to improve page speed, fix Core Web Vitals, optimize assets, reduce bundle size, debug slow renders, or systematically improve a site's performance. Triggers on performance, page speed, Core Web Vitals, LCP, INP, CLS, FID, TTFB, bundle size, code splitting, image optimization, lazy loading, render bl.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add rampstackco/claude-skills/performance-optimization@git:20260810.e5bc675
Exact content
mdr add rampstackco/claude-skills/performance-optimization@sha256:896161a06b87cd83

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_up2wwy5vcgoxyyqj.svg)](https://markdownregistry.com/a/art_up2wwy5vcgoxyyqj)

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Versions

versioncommittedcommitsizeaudit
git:20260810.e5bc675 latest2026-08-10 e5bc675 10,763 BA view · diff
git:20260507.ac2b0782026-05-07 ac2b078 10,240 BA view · diff
git:20260505.c80b8962026-05-05 c80b896 10,129 BA view · diff
git:20260429.c2be03d2026-04-29 c2be03d 10,015 BA view · diff
git:20260428.f066ffe2026-04-28 f066ffe 9,892 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10763 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

rampstackco/claude-skills · 878 stars · license MIT · pushed 2026-09-15 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_up2wwy5vcgoxyyqj
GET https://markdownregistry.com/api/v1/resolve?ref=rampstackco/claude-skills/performance-optimization
GET https://markdownregistry.com/api/v1/blob/896161a06b87cd83566bb4302c2154b3ed57ef4b3bba027f86cfed17c807f325

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.