Web Best Practices Audit
Apply modern web best practices — security, browser compatibility, code quality
- What
- Apply modern web best practices — security, browser compatibility, code quality
- Cost
- Free
- Needs
- none — guidance for any web project
- Install
- Copy the installer prompt below into your Muse — your agent does the rest.
Curated by Skill Harbor — a broad best-practices audit across four pillars, run evidence-first. Security: HTTPS without mixed content, HSTS, strict CSP as defense in depth with nonces, untrusted-HTML sanitization and DOM XSS sink protection, SRI pinning for third-party code, runtime response-header verification. Browser compatibility: doctype, charset, viewport, feature detection, polyfills only when needed. Code quality: valid semantic HTML, image aspect ratios, no console errors, error boundaries (React) and a global error handler, source maps configured for production, no blocking patterns, efficient event handlers, memory management, permissions requested properly with a Permissions policy. Closes with a ready audit checklist (security-critical, compatibility, code quality, UX) and tooling references. Distinct from its repo siblings core-web-vitals (lot 32, the metrics deep dive) and web-quality-audit (lot 31, the orchestrator). Pure guidance, no accounts, no paid services. By @addyosmani, listed here with credit to its creator. Skill Harbor never reviews the code, review it yourself before use.
Version:
Install
Prerequisites: none — guidance for any web project Install "Web Best Practices Audit" for me. Apply modern web best practices — security, browser compatibility, code quality Repository: https://github.com/addyosmani/web-quality-skills/blob/main/skills/best-practices/SKILL.md 1. Fetch the SKILL.md file for the addyosmani-best-practices skill from the repository into a temporary folder and summarize what it does in one or two sentences. 2. Safety check: review the SKILL.md and scripts for anything suspicious (unexpected network calls, shell commands, credential harvesting). This repo should contain zero secrets in code, credentials only via the secure vault, allowed hosts declared in the SKILL.md. Verify that holds here; STOP on any red flag and tell me. 3. Install it as a skill: copy SKILL.md and its helper files into the agent's skills directory, in a folder named "addyosmani-best-practices". 4. Verify with no network calls: frontmatter valid, files in place. 5. Report what was installed, where, and what I still need to do myself (e.g. any accounts, API keys, or CLI tools mentioned in the prerequisites above). GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Never require it unless it's in the prerequisites above. Rules: don't touch anything outside the temp folder and the install target. Never ask me to paste secrets in chat — credentials go through the secure vault or environment variables. If anything looks off, stop and ask me.
Questions
How do I install a build?
Every product page includes a copy-paste install prompt. Paste it into your Muse and it sets the build up for you — no manual configuration.
Where does my money go?
Straight to the seller. Skill Harbor never processes payments: checkout happens on the seller’s own page, usually Stripe.
What does the ✓ next to a creator’s name mean?
It means we confirmed the identity of the person behind the listing. It says nothing about the code itself — always check a build before installing it.