accessibility-performance-polish

accessibility-performance-polish is a skill for Codex from TheGoat395/Codex-Skills. It costs 12 tokens per session (215 once invoked), scanned A, original, MIT.

A set of checks for making polished websites easier to use and faster to load. It covers both accessibility, which removes barriers for people with disabilities, and frontend performance.

In plain words
What is it for?
Use it to improve semantic HTML, keyboard controls, focus states, contrast, alt text, reduced motion, media loading, canvas fallbacks, bundles, and animation performance.
Why use it?
It helps prevent attractive pages from being hard to navigate, unreadable, slow, unstable, or wasteful with images and animations.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Use it to improve semantic HTML, keyboard controls, focus states, contrast, alt text, reduced motion, media loading, canvas fallbacks, bundles, and animation performance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/thegoat395/codex-skills/accessibility-performance-polish
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.

Any agent
npx skills add TheGoat395/Codex-Skills --skill accessibility-performance-polish
Clone the repo
git clone --depth 1 https://github.com/TheGoat395/Codex-Skills

Made for: Codex.

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 accessibility-performance-polish

README.md
[![agentmods](https://agentmods.dev/badge/skills/thegoat395/codex-skills/accessibility-performance-polish/github.svg)](https://agentmods.dev/skills/thegoat395/codex-skills/accessibility-performance-polish)
Your own site
<a href="https://agentmods.dev/skills/thegoat395/codex-skills/accessibility-performance-polish"><img src="https://agentmods.dev/badge/skills/thegoat395/codex-skills/accessibility-performance-polish/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for accessibility-performance-polish

Your own site · 80×15
<a href="https://agentmods.dev/skills/thegoat395/codex-skills/accessibility-performance-polish"><img src="https://agentmods.dev/badge/skills/thegoat395/codex-skills/accessibility-performance-polish.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 215 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found 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 $0.00012 $0.00215
Opus 5 $0.00006 $0.00108
Sonnet 5 $0.00002 $0.00043
Haiku 4.5 $0.00001 $0.00021

Measured 3d ago against content hash 00a1396cf5c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

accessibility-performance-polish 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 3d 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.

skills/accessibility-performance-polish/SKILL.md · 27 lines

What it actually says

Accessibility Performance Polish

Purpose

Keep high-end websites usable, readable, fast, and stable.

Required Use

Use this skill when the trigger description applies. Keep the SKILL.md lean, then read references/accessibility-performance-polish-guide.md for concrete rules before planning or editing a meaningful website change.

Scoped execution

Apply the shared web contract once when execution crosses phases; reuse it if already read. Load only the specialist guidance relevant to the requested surface and deliverable.

Detailed Guide

Read references/accessibility-performance-polish-guide.md when this skill is active for a build, redesign, review, or implementation plan.

Scope and evidence

Keep this a focused finishing pass. Route a formal accessibility assessment to $accessibility-audit-websites and measured performance diagnosis to $performance-audit-websites; neither expands the authorized scope automatically.

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago Changed · -42 tokens per session 00a1396cf5c3
  2. 9d ago First seen · 27 lines · 54 tokens per session scan A cb73da50abaf

Subscribe to this mod's changes

accessibility-performance-polish is a skill published in the GitHub repository TheGoat395/Codex-Skills (122 stars, last pushed yesterday), licensed MIT. It adds 12 tokens to every session and 215 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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