# Ar

> Augmented reality (AR) reality tech. Passthrough overlays, hit-test/anchors, occlusion, lighting, camera permissions, and safety.

- Skill: `plurigrid/ar` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add plurigrid/ar`
- Raw SKILL.md: https://api.skillmd.com/api/skills/plurigrid/ar/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: Apache-2.0
- Author: plurigrid (https://skillmd.com/u/plurigrid)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/plurigrid/ar

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# AR (Augmented Reality)

Use when the user is building AR on WebXR (immersive-ar) or native (ARKit/ARCore/OpenXR).

## Fast Defaults

- Prefer stable world-locked content; avoid screen-locked UI unless necessary
- Use clear permission prompts and visible camera-on indicators
- Start with: hit-test + placement + anchors + simple interaction

## AR Capability Checklist

- Plane / mesh detection
- Hit-test (placing content onto surfaces)
- Anchors (persistent placement)
- Occlusion (depth) and lighting estimation if available
- Safety boundaries (keep critical UI in view, avoid distraction)

## Debug Checklist

- Confirm session type (WebXR `immersive-ar`) or native runtime
- Verify tracking origin and world scale (1 unit = 1 meter)
- Confirm anchor lifetimes and relocalization handling

See also: `ar-vr-xr` for the full workflow and shared performance/comfort guidance.