web-quality

Web quality optimization skills based on Google Lighthouse guidelines and Core Web Vitals. Use when asked to audit web quality, optimize performance, improve accessibility, fix SEO, apply best practices, or analyze Core Web Vitals (LCP, INP, CLS).

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Repository: georgekhananaev/claude-skills-vault
Last source activity: March 16, 2026 at 19:42
Detected SKILL.md language: English
Stars: 27
Forks: 9

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natural-language

Shapes how every reply to the user gets written - plain everyday words instead of corporate or AI-sounding phrasing, real sentences instead of bullet-heavy formatting, no forced dash punctuation, and at most a rare bit of dry humor when it genuinely fits. Use this for every conversational response written to the user in this project, not only on special request - check it before replying, the same way a person reads over their own message before hitting send.

2026-08-12

firebase-cli

Safety-first Firebase CLI (firebase-tools v15) skill for full project control — deploy, Hosting (sites/channels/rollback), Cloud Functions (+secrets), Firestore (databases/indexes/backups/delete), Realtime Database, Auth import/export, Remote Config, App Distribution, App Hosting, Extensions, Data Connect, Emulator Suite & MCP server. Classifies every command by risk tier via a deterministic classifier script and gates destructive/irreversible/cost-incurring ops behind AskUserQuestion confirmation; enforces the --non-interactive/--force contract so nothing hangs and nothing is auto-confirmed. Wrong-project preflight prevents deploying to prod by accident. Ships a 3-level self-test (static classifier battery, live read-only, guarded live-write w/ cleanup). Use when running, planning, or debugging any `firebase` command.

2026-07-18

codex-cli

Run OpenAI Codex CLI for coding tasks, implementation, reviews, and second-opinion audits with mandatory task-based routing across GPT-5.6-or-newer models. Use when a user asks to run, ask, or use Codex; says "codex prompt"; wants a Codex code/logic/plan audit; or wants Claude to delegate work to OpenAI models. Inspect the live Codex model catalog, explicitly pin an eligible model and reasoning effort on every invocation, route clear high-volume work to Luna, everyday work to Terra, and difficult or high-value work to Sol. Use Sol with max reasoning for plan audits. Never invoke or fall back to GPT-5.5, GPT-5.4, GPT-5.3-Codex-Spark, OSS, or any model older than GPT-5.6.

2026-07-12

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name	web-quality
description	Web quality optimization skills based on Google Lighthouse guidelines and Core Web Vitals. Use when asked to audit web quality, optimize performance, improve accessibility, fix SEO, apply best practices, or analyze Core Web Vitals (LCP, INP, CLS).
license	MIT
metadata	{"author":"Addy Osmani","source":"https://github.com/addyosmani/web-quality-skills","version":"1.0"}

Web Quality Skills

Comprehensive web quality optimization based on Google Lighthouse guidelines and Core Web Vitals.

Available Sub-Skills

Skill	File	Triggers
Web Quality Audit	web-quality-audit-SKILL.md	"audit", "quality review", "lighthouse"
Performance	performance-SKILL.md	"speed up", "optimize", "load time"
Core Web Vitals	core-web-vitals-SKILL.md	"LCP", "INP", "CLS", "Core Web Vitals"
Accessibility	accessibility-SKILL.md	"a11y", "WCAG", "accessible"
SEO	seo-SKILL.md	"SEO", "meta tags", "search"
Best Practices	best-practices-SKILL.md	"security", "best practices", "modern"

Key Thresholds

Core Web Vitals (Good):

LCP: 2.5s or less
INP: 200ms or less
CLS: 0.1 or less

Performance Budgets:

Total page weight: < 1.5 MB
JavaScript: < 300 KB
CSS: < 100 KB

Lighthouse Targets:

Performance: 90+
Accessibility: 100
Best Practices: 95+
SEO: 95+

Source

From addyosmani/web-quality-skills.

web-quality

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More from this repository

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Web Quality Skills

Available Sub-Skills

Key Thresholds

Source

Web Quality Skills

Available Sub-Skills

Key Thresholds

Source