Agentic Plugin Marketplace is a collection of reusable plugins, agents, skills, commands, and rules for coding-agent tools including Claude Code, Codex CLI, Cursor, OpenCode, Antigravity CLI, and GitHub Copilot. It is for developers assembling agentic workflows across multiple harnesses from shared Markdown sources, and the catalogue entries are examples or subsets of those workflow components.
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 skills add wshobson/agents --skill screen-reader-testinggit clone --depth 1 https://github.com/wshobson/agentsWrote 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.
[](https://agentmods.dev/skills/wshobson/agents/screen-reader-testing)<a href="https://agentmods.dev/skills/wshobson/agents/screen-reader-testing"><img src="https://agentmods.dev/badge/skills/wshobson/agents/screen-reader-testing/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.
<a href="https://agentmods.dev/skills/wshobson/agents/screen-reader-testing"><img src="https://agentmods.dev/badge/skills/wshobson/agents/screen-reader-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00039 | $0.01587 |
| Opus 5.5 | $0.00016 | $0.00635 |
| Sonnet 5.5 | $0.00008 | $0.00317 |
| Haiku 4.5 | $0.00004 | $0.00159 |
Grade A, and why
screen-reader-testing 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 yesterday.
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.
Copies of this mod
4 near-identical copies found in the catalogue:
- screen-reader-testing — 100% identical, 301 lines differ
- screen-reader-testing — 100% identical, 301 lines differ
- screen-reader-testing — 89% identical, 312 lines differ
- screen-reader-testing — 89% identical, 410 lines differ
How it starts
The opening of the file, as written. The whole thing — 246 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Screen Reader Testing
Practical guide to testing web applications with screen readers for comprehensive accessibility validation.
When to Use This Skill
- Validating screen reader compatibility
- Testing ARIA implementations
- Debugging assistive technology issues
- Verifying form accessibility
- Testing dynamic content announcements
- Ensuring navigation accessibility
Core Concepts
1. Major Screen Readers
| Screen Reader | Platform | Browser | Usage |
|---|---|---|---|
| VoiceOver | macOS/iOS | Safari | ~15% |
| NVDA | Windows | Firefox/Chrome | ~31% |
| JAWS | Windows | Chrome/IE | ~40% |
| TalkBack | Android | Chrome | ~10% |
| Narrator | Windows | Edge | ~4% |
2. Testing Priority
Minimum Coverage:
1. NVDA + Firefox (Windows)
2. VoiceOver + Safari (macOS)
3. VoiceOver + Safari (iOS)
Comprehensive Coverage:
+ JAWS + Chrome (Windows)
+ TalkBack + Chrome (Android)
+ Narrator + Edge (Windows)
3. Screen Reader Modes
| Mode | Purpose | When Used |
|---|---|---|
| Browse/Virtual | Read content | Default reading |
| Focus/Forms | Interact with controls | Filling forms |
| Application | Custom widgets | ARIA applications |
Before testing on macOS, read VoiceOver setup, commands, and checklists.
For the required iOS Safari coverage, read VoiceOver touch setup and gestures.
Before testing with NVDA, read NVDA setup, modes, commands, and test scripts.
Before testing with JAWS or TalkBack, read platform setup and commands.
Common Test Scenarios
1. Modal Dialog
<!-- Accessible modal structure -->
<div
role="dialog"
aria-modal="true"
aria-labelledby="dialog-title"
aria-describedby="dialog-desc"
>
<h2 id="dialog-title">Confirm Delete</h2>
<p id="dialog-desc">This action cannot be undone.</p>
<button>Cancel</button>
<button>Delete</button>
</div>
What ships with it
4 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.
- yesterday Changed · -293 lines d7a4190a8869
- 1mo ago First seen · 539 lines · 39 tokens per session scan A 591c7ff80f40
screen-reader-testing is a skill published in the GitHub repository wshobson/agents (40,926 stars, last pushed yesterday), licensed MIT. It adds 39 tokens to every session and 1,587 once invoked, about $0.0002 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.
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proof-e2e
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