# Axiom Apple Docs

Use when you need Apple's own documentation or a Swift compiler diagnostic explained...

- Repository: https://github.com/CharlesWiltgen/Axiom (1242 stars)
- Category: Mobile
- License: MIT
- Last updated: 2026-10-31
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add CharlesWiltgen/Axiom --skill axiom-apple-docs -g -a claude-code -y`
Codex: `npx skills add CharlesWiltgen/Axiom --skill axiom-apple-docs -g -a codex -y`
Cursor: `npx skills add CharlesWiltgen/Axiom --skill axiom-apple-docs -g -a cursor -y`
Gemini CLI: `npx skills add CharlesWiltgen/Axiom --skill axiom-apple-docs -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add CharlesWiltgen/Axiom`

## Description

Use when you need Apple's own documentation or a Swift compiler diagnostic explained rather than recalled.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Apple Documentation Router

Apple bundles for-LLM markdown documentation inside Xcode. These are authoritative, up-to-date guides and diagnostics written by Apple engineers. Read them directly as files (in Claude Code, with the **`Read`** tool), no MCP server or special tool required.

## When to Use

- You need the exact API signature or behavior from Apple
- An Axiom skill references an Apple framework and you want the official source
- A Swift compiler diagnostic needs explanation
- The user asks about a specific Apple framework feature

**Priority**: Axiom skills provide opinionated guidance (decision trees, anti-patterns, pressure scenarios). Apple docs provide authoritative API details. Use both together.

## How to Read These Docs

Axiom's session context names the Xcode the user has switched to. In Claude Code it lists the literal base directories ("Apple for-LLM Documentation: Xcode detected at `<path>`"); other harnesses name the app ("Installed on this machine: Xcode … (`<path>`)"), substitute that `.app` for `/Applications/Xcode.app` in the table below. Read `<base>/<filename>` as a file (the **`Read`** tool in Claude Code).

Default Xcode location (`/Applications/Xcode.app`) base directories:

| Content | Base directory |
|---|---|
| AdditionalDocumentation guides | `/Applications/Xcode.app/Contents/PlugIns/IDEIntelligenceChat.framework/Versions/A/Resources/AdditionalDocumentation/` |
| Swift compiler diagnostics | `/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/doc/swift/diagnostics/` |

Example invocation Claude should produce:

```
Read /Applications/Xcode.app/Contents/PlugIns/IDEIntelligenceChat.framework/Versions/A/Resources/AdditionalDocumentation/SwiftUI-Implementing-Liquid-Glass-Design.md
```

The rest: https://github.com/CharlesWiltgen/Axiom/blob/HEAD/.claude-plugin/plugins/axiom/skills/axiom-apple-docs/SKILL.md