talebook: Skill for Codex

.agents/skills/better-accessibility/SKILL.md

better-accessibility is a skill for Codex from talebook/talebook. It costs 141 tokens per session (2,005 once invoked), scanned A, original, BSD-2-Clause.

A guide to making product interfaces usable with keyboards and screen readers, software that reads interface content aloud or outputs it as braille. It covers focus states, labels, forms, menus, dialogs, and ARIA, a system for describing interface meaning to assistive technology.

In plain words
What is it for?
Use it when building or reviewing components, dialogs, menus, forms, and custom controls, or when fixing keyboard and screen-reader problems.
Why use it?
It helps people complete tasks without a mouse and understand controls, names, and states through assistive technology. It also reduces errors caused by replacing built-in browser controls with incomplete custom versions.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is talebook/talebook's own configuration. It tells Codex how to work on talebook itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything talebook configures →

About the project

Talebook is a self-hosted web library for managing and reading personal ebook collections built around Calibre. Individuals use it to organize, search, read, convert, download, and share books, while its catalogue skill lets coding agents manage a Talebook instance through natural-language requests.

talebook/talebook · 5,890 stars · on GitHub · talebook.org

Reuse

Borrowing it

Nothing to install: this file belongs to talebook/talebook. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/talebook/talebook/master/.agents/skills/better-accessibility/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/talebook/talebook

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 better-accessibility

README.md
[![agentmods](https://agentmods.dev/badge/skills/talebook/talebook/better-accessibility/github.svg)](https://agentmods.dev/skills/talebook/talebook/better-accessibility)
Your own site
<a href="https://agentmods.dev/skills/talebook/talebook/better-accessibility"><img src="https://agentmods.dev/badge/skills/talebook/talebook/better-accessibility/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 better-accessibility

Your own site · 80×15
<a href="https://agentmods.dev/skills/talebook/talebook/better-accessibility"><img src="https://agentmods.dev/badge/skills/talebook/talebook/better-accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,005 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 $0.00141 $0.02005
Opus 5.5 $0.00056 $0.00802
Sonnet 5.5 $0.00028 $0.00401
Haiku 4.5 $0.00014 $0.00200

Measured 2mo ago against content hash 9ce6287bc81e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

better-accessibility 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 2mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.agents/skills/better-accessibility/SKILL.md · 102 lines

How it starts

The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Accessibility that comes with the craft

Accessibility is not a compliance checkbox bolted on at the end; it is the floor for interface craft. Most of it is free if you use the platform: native elements ship with keyboard support, real labels announce themselves, and a visible focus ring is one CSS rule. Apply these principles when building or reviewing UI code, and write every fix in the project's own idiom: the styling system already in use, never a second one alongside it.

When reviewing, walk the interface as a keyboard-only user first (every flow must complete without a mouse), then as a screen-reader user: does each control announce a name, a role, and its state? When unsure, prefer the platform default over a custom rebuild, and remove ARIA rather than add it.

Rendered-pair contrast measurement and color remediation are covered by the better-colors skill; visual text sizing and iOS input zoom by better-typography; spatial RTL layout by better-layout.

Quick Reference

Category When to Use
Focus & Keyboard Focus rings, skip links, tabindex, focus trapping, APG keyboard patterns
Semantics & ARIA Native elements first, button vs link, landmarks, accessible names, disabled states
Forms Labels, autocomplete, error messaging, input types
Screen Readers Visually hidden content, live regions, toasts, alt text, SVG
Hit Areas Target sizes, expanding hit areas, collision rules
Motion & Zoom prefers-reduced-motion, autoplay and timed UI, 200% zoom, reflow, rem vs px
Review Output Format Severity scale, findings table, verification, verdict

Core Principles

1. Native Elements First

The first rule of ARIA: don't use ARIA when a native element exists. <button> for actions, <a href> for navigation (it must support Cmd/Ctrl/middle-click), never <div onClick>. No ARIA is better than bad ARIA.

Read the full file on GitHub · 102 lines

Files

What ships with it

8 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. 2mo ago First seen · 102 lines · 141 tokens per session scan A 9ce6287bc81e

Subscribe to this mod's changes

better-accessibility is a skill published in the GitHub repository talebook/talebook (5,890 stars, last pushed 5d ago), licensed BSD-2-Clause. It adds 141 tokens to every session and 2,005 once invoked, about $0.0006 per session on Opus 5.5. 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.

Related

better-accessibility compared with skills from other repositories

better-accessibility next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
better-accessibilitytalebook/talebookSkill5.9k5d agoBSD-2-ClauseA141Codex
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chakra-ui-builderchakra-ui/chakra-uiSkill41kyesterdayMITA214Claude Code, Codex
visual-ralphYeachan-Heo/oh-my-codexSkill34k3d agoMITA52Codex
open-design-setupcompozy/compozySkill2.8ktodayMITA67Claude Code, Codex
frontend-visual-qadaymade/claude-code-skillsSkill1.5kyesterdayMITA125Claude Code, Codex
refactoring-uiwondelai/skillsSkill2.6k4d agoMITA132Claude Code, Codex