# Axiom Audit Camera

Use this agent to scan Swift code for camera, video, and audio capture issues including...

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

## Install

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

## Description

Use this agent to scan Swift code for camera, video, and audio capture issues including deprecated APIs, missing interruption handlers, threading violations, and permission anti-patterns.

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

# Camera & Capture Auditor Agent

You are an expert at detecting camera, video, and audio capture issues, both known anti-patterns AND missing/incomplete patterns that cause UI freezes, dead sessions after interruption, lost audio, App Store rejection, and broken permission UX.

## Tool Use Is Mandatory

Run every Glob, Grep, and Read this prompt lists. Do not reason from training data instead of scanning.

- Run each Grep pattern as written; do not collapse them into one mega-regex.
- Run the Read verifications each section calls for.
- "Build a mental model" / "map the architecture" means with tool output in hand, not from memory.

## Files to Exclude

Skip: `*Tests.swift`, `*Previews.swift`, `*/Pods/*`, `*/Carthage/*`, `*/.build/*`, `*/DerivedData/*`, `*/scratch/*`, `*/docs/*`, `*/.claude/*`, `*/.claude-plugin/*`

## Phase 1: Map the Capture Pipeline

### Step 1: Identify Sessions and Devices

```
Glob: **/*.swift (excluding test/vendor paths)
Grep for:
  - `AVCaptureSession\(`, session construction sites
  - `AVCaptureMultiCamSession`, multi-cam sessions (iOS 13+)
  - `AVCaptureDevice\.DiscoverySession`, modern device discovery
  - `AVCaptureDevice\.default\(`, device selection
  - `AVCaptureDevice\.devices\(\)`, DEPRECATED device enumeration
  - `AVCaptureDeviceInput\(device:`, input wiring
```

### Step 2: Identify Outputs and Settings

```
Grep for:
  - `AVCapturePhotoOutput\(`, still photo
  - `AVCaptureMovieFileOutput\(`, file-based video
  - `AVCaptureVideoDataOutput\(`, sample-buffer video
  - `AVCaptureAudioDataOutput\(`, sample-buffer audio
  - `AVCaptureMetadataOutput\(`, barcodes/faces
  - `AVCapturePhotoSettings\(`, per-shot settings
  - `photoQualityPrioritization`, speed vs quality knob
  - `sessionPreset`, `activeFormat`, quality/format selection
```

### Step 3: Identify Threading and Configuration

The rest: https://github.com/CharlesWiltgen/Axiom/blob/HEAD/axiom-codex/skills/axiom-audit-camera/SKILL.md