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.
npx agentmods add skills/prabhdeepsingh/claude-plugins/accessibilitynpx skills add PrabhdeepSingh/claude-plugins --skill accessibilitygit clone --depth 1 https://github.com/PrabhdeepSingh/claude-pluginsWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00107 | $0.02684 |
| Opus 5 | $0.00053 | $0.01342 |
| Sonnet 5 | $0.00021 | $0.00537 |
| Haiku 4.5 | $0.00011 | $0.00268 |
Grade A, and why
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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 123 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 match the project's existing styling system (Tailwind vs. plain CSS vs. CSS-in-JS) when applying fixes.
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 [[colors]]; visual text sizing and iOS input zoom by [[typography]]; spatial RTL layout by [[layout]].
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.
→ references/semantics-and-aria.md — native-element choices, button vs. link, landmarks, accessible-name computation, and disabled-state handling, read when this change adds a custom widget, an ARIA attribute, or a page-structure element.
2. Visible Focus Rings
Style :focus-visible, not bare :focus, so keyboard users get a ring and mouse users usually don't. Prefer the browser's unmodified focus indicator. If the design needs a custom ring, use a project focus token or another explicit color and verify the complete indicator against every adjacent color it crosses; currentColor is acceptable only after the same check. Use at least a 2px solid perimeter or an equivalent visible area. Never use outline: none without a verified replacement, and preserve system colors in forced-colors mode.
What ships with it
6 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.
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.
- 2d ago First seen · 123 lines · 107 tokens per session scan A cfb11a5f9f23
accessibility is a skill published in the GitHub repository PrabhdeepSingh/claude-plugins (3 stars, last pushed 3d ago), licensed MIT. It adds 107 tokens to every session and 2,684 once invoked, about $0.0005 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 2026-08-31.
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