web-performance

web-performance is a Web performance & accessibility skill for AI agents, published by TheDecipherist in the claude-code-mastery-project-starter-kit repository on GitHub. Skillspace rates web-performance D (68/100) and it passed the safety scan; the rating is based on static analysis only.

Web performance as an up-front design decision, not a later optimization pass. Use when building any user-facing page or component, deciding what loads when, or fixing a slow load or Core Web Vitals (LCP, CLS, INP). The organizing principle is to split what the user needs for first paint from what can wait, and build to that split from the start. Covers render-blocking CSS/JS, preloading the LCP element, lazy-loading the rest, reserving space to stop layout shift, and image/font/JS cost.

Grade
D
Quality
68 / 100
Safety
Passed
GitHub stars
332

Unproven: rated by static analysis only, not yet compared head-to-head.

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

View source on GitHubTheDecipherist/claude-code-mastery-project-starter-kit

Our review

Architecture
100 / 100
Maturity
Basic: a single SKILL.md
Security scan
No issues found
License
MIT
Adoption
Adopted by 0 other repositories, in 0 collections

Not checked yet

  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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