macos-accessibility

macos-accessibility is a skill for Claude Code, Codex from martinholovsky/claude-skills-generator. It costs 51 tokens per session (3,661 once invoked), scanned A, original, Unlicense.

A coding guide for macOS Accessibility APIs, which let software inspect and control interface elements in Mac applications. It covers permissions, app discovery, process checks, and security controls.

In plain words
What is it for?
Use it to build or review macOS automation that finds interface elements, performs actions, checks permissions, and records operations. TDD means writing tests before the implementation.
Why use it?
It helps prevent unsafe desktop automation, especially when handling system permissions or interacting with sensitive applications.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: model in frontmatter.

Good fit Use it to build or review macOS automation that finds interface elements, performs actions, checks permissions, and records operations. TDD means writing tests before the implementation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/martinholovsky/claude-skills-generator/macos-accessibility
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 martinholovsky/claude-skills-generator --skill macos-accessibility
Clone the repo
git clone --depth 1 https://github.com/martinholovsky/claude-skills-generator

Made for: Claude Code, 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 macos-accessibility

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/martinholovsky/claude-skills-generator/macos-accessibility"><img src="https://agentmods.dev/badge/skills/martinholovsky/claude-skills-generator/macos-accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,661 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00051 $0.03661
Opus 5 $0.00026 $0.01831
Sonnet 5 $0.00010 $0.00732
Haiku 4.5 $0.00005 $0.00366

Measured 10d ago against content hash baf19ea7fcc3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

macos-accessibility scanned grade A with 1 finding 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 10d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

result = subprocess.run(['codesign', '-v', app.bundleURL().path()], capture_output=True)
skills/macos-accessibility/SKILL.md · 497 lines

How it starts

The opening of the file, as written. The whole thing — 497 lines — stays where its author put it; the contents beside it link to each section on GitHub.

1. Overview

Risk Level: HIGH - System-level access, TCC permission requirements, process interaction

You are an expert in macOS Accessibility automation with deep expertise in:

  • AXUIElement API: Accessibility element hierarchy, attributes, actions
  • TCC (Transparency, Consent, Control): Permission management
  • ApplicationServices Framework: System-level automation integration
  • Security Boundaries: Sandbox restrictions, hardened runtime

Core Expertise Areas

  1. Accessibility APIs: AXUIElementRef, AXObserver, attribute queries
  2. TCC Permissions: Accessibility permission requests, validation
  3. Process Management: NSRunningApplication, process validation
  4. Security Controls: Sandbox awareness, permission tiers

2. Core Responsibilities

2.1 Core Principles

  • TDD First: Write tests before implementation - verify permission checks, element queries, and actions work correctly
  • Performance Aware: Cache elements, limit search scope, batch attribute queries for optimal responsiveness
  • Security First: Validate TCC permissions, verify code signatures, block sensitive applications
  • Audit Everything: Log all operations with correlation IDs for security audit trails

2.2 Safe Automation Principles

When performing accessibility automation:

  • Validate TCC permissions before any operation
  • Respect sandbox boundaries of target applications
  • Block sensitive applications (Keychain, Security preferences)
  • Log all operations for audit trails
  • Implement timeouts to prevent hangs

2.3 Permission Management

All automation must:

  1. Check for Accessibility permission in TCC database
  2. Validate process has required entitlements
  3. Request minimal necessary permissions
  4. Handle permission denial gracefully

2.4 Security-First Approach

Every automation operation MUST:

  1. Verify target application identity
  2. Check against blocked application list
  3. Validate TCC permissions
  4. Log operation with correlation ID
  5. Enforce timeout limits

Read the full file on GitHub · 497 lines

Files

What ships with it

3 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. 10d ago First seen · 497 lines · 51 tokens per session scan A baf19ea7fcc3

Subscribe to this mod's changes

macos-accessibility is a skill published in the GitHub repository martinholovsky/claude-skills-generator (45 stars, last pushed 9mo ago), licensed Unlicense. It adds 51 tokens to every session and 3,661 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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