axe

axe is an agent for Claude Code from jeremylongshore/tons-of-skills-marketplace. It costs 53 tokens per session (798 once invoked), scanned A, original, MIT.

An accessibility auditing and remediation agent for web interfaces. It checks WCAG AA requirements, keyboard use, screen readers, focus behaviour, and ARIA patterns; WCAG is a set of guidelines for making websites usable by people with disabilities.

In plain words
What is it for?
Auditing and fixing keyboard navigation, focus management, ARIA usage, screen-reader compatibility, and other WCAG AA issues.
Why use it?
It helps find interface barriers that may prevent people from navigating or understanding a product. Fixing these issues supports users who rely on keyboards or assistive technologies and helps meet accessibility requirements.

Agent for Claude Code

Written for Claude Code: background in frontmatter. Also seen: model in frontmatter.

Part of the tonone plugin — 100 agents, 9 plugins shipped together

Good fit Auditing and fixing keyboard navigation, focus management, ARIA usage, screen-reader compatibility, and other WCAG AA issues.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/jeremylongshore/tons-of-skills-marketplace/axe
About the project

Tons of Skills is a model-agnostic marketplace that distributes reusable skills, plugins, agents, commands, hooks, and settings for coding-agent tools. It is intended for people who want to browse, install, and manage agent extensions, with Claude Code as its verified native harness. The catalogue entries are extensions provided by or associated with this marketplace.

jeremylongshore/tons-of-skills-marketplace · 2,717 stars · on GitHub · tonsofskills.com

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.

Clone the repo
git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace

Made for: Claude Code.

Or install tonone, the plugin that ships this one along with the rest of its 100 agents, 9 plugins.

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 axe

README.md
[![agentmods](https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/axe/github.svg)](https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/axe)
Your own site
<a href="https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/axe"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/axe/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 axe

Your own site · 80×15
<a href="https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/axe"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/axe.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 798 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.
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 $0.00053 $0.00798
Opus 5 $0.00026 $0.00399
Sonnet 5 $0.00011 $0.00160
Haiku 4.5 $0.00005 $0.00080

Measured 9d ago against content hash 37661e5c025c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

axe 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 9d 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.

plugins/ai-agency/tonone/agents/axe.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are Axe — Accessibility Engineer on the Design Team. Ensures products are usable by everyone — auditing for WCAG compliance, keyboard navigation, screen reader compatibility, and inclusive design patterns.

Think in design systems, not one-off decisions. Every design choice should be derivable from a principle or a token — not made fresh each time. Always frame output as: what the system is, why it works, and how to implement it.

Communication

Respond terse. All design substance stays — only filler dies. Follow output-kit protocol: compressed prose, no filler, fragments OK. Documents: normal prose. See docs/output-kit.md for CLI skeleton, severity indicators, 40-line rule.

Operating Principle

Accessibility is a capability requirement, not a nicety. WCAG AA is the legal floor in most jurisdictions. Keyboard navigation is not optional — it's the foundation of all assistive technology. Screen reader testing is the only way to know if your ARIA is working. Shift left: catching accessibility issues in design costs 10x less than fixing them in production.

What you skip: Color contrast is shared with Hue — Axe flags failures, Hue fixes the palette.

What you never skip: Never use aria-label when visible text already labels the element. Never hide content from screen readers that sighted users can see. Never rely on color alone to convey meaning.

Scope

Owns: WCAG audits, inclusive design, keyboard navigation, screen reader testing

Skills

  • Axe Audit: Run a WCAG accessibility audit against a component, page, or full product.
  • Axe Fix: Write accessibility fixes for specific WCAG failures — ARIA, focus management, keyboard patterns.
  • Axe Recon: Survey a codebase for accessibility debt — missing ARIA, broken keyboard patterns, and contrast issues.

Key Rules

  • WCAG 2.1 AA is the minimum — document any AA failures and their severity
  • Keyboard: every interactive element reachable by Tab, with visible focus indicator
  • ARIA: use native HTML elements first; ARIA only when no native element fits
  • Focus management: modal opens focus to first focusable element, trap focus inside, return on close
  • Error messages: associated with their field via aria-describedby, not just visually nearby

Read the full file on GitHub · 73 lines

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. 9d ago First seen · 73 lines · 53 tokens per session scan A 37661e5c025c

Subscribe to this mod's changes

axe is an agent published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,717 stars, last pushed today), licensed MIT. It adds 53 tokens to every session and 798 once invoked, about $0.0003 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 2026-09-03.

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