Unity-MRMotifs AGENTS.md

Instructions for MR Motifs, a Unity collection of mixed-reality examples for Meta Quest and Horizon devices. Mixed reality combines the real world seen through a device with digital content.

In plain words
What is it for?
Working on the sample mixed-reality scenes, shared activities, content placement, depth effects, passthrough transitions, and device builds.
Why use it?
They point contributors to the project’s source-of-truth files and device-specific setup requirements. This helps avoid using incorrect Unity or Meta XR settings when building for a headset.

Instructions file for CodexOpenCode

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.

agentmods
npx agentmods add instructions/oculus-samples/unity-mrmotifs/agents-md
Clone the repo
git clone --depth 1 https://github.com/oculus-samples/Unity-MRMotifs

Made for: Codex, OpenCode.

Per session 837 This file is loaded in full into every session.
When invoked 837 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00837 $0.00837
Opus 5 $0.00418 $0.00418
Sonnet 5 $0.00167 $0.00167
Haiku 4.5 $0.00084 $0.00084

Measured 2d ago against content hash 373fada0e1c1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Unity-MRMotifs AGENTS.md 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 2d 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.

AGENTS.md · 38 lines

How it starts

The opening of the file, as written. The whole thing — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Instructions — MR Motifs

Unity collection of focused Mixed Reality reference patterns ("motifs") for recurring MR mechanics — currently Passthrough Transitioning, Shared Activities, Instant Content Placement & Depth Effects, and Colocated Experiences.

Source-of-truth files (read these first, do not duplicate their contents in this file)

For setup, build steps, SDK versions, and project layout, read:

  • README.md — official requirements, per-motif notes, and additional-requirements sections for Shared Activities / Instant Content Placement / Colocated Experiences
  • ProjectSettings/ProjectVersion.txt — Unity editor version
  • Packages/manifest.json — Unity package versions (Meta XR Core / Interaction / Platform, MRUK, Avatars, OpenXR, Unity OpenXR Meta)
  • LICENSE — license terms

Quest / Horizon-specific notes

  • The bootstrap scene is Assets/MRMotifs/MRMotifsHome.unity — every motif is reachable from its in-scene Menu Panel. Toggle the menu with the controller start/menu button or the menu hand-gesture.
  • After any project setting change, run Meta > Tools > Update AndroidManifest.xml before building to the device, or runtime permissions / features will be stale.
  • The Depth API and MRUK Space Sharing API require the Unity OpenXR Meta plugin extension installed alongside the base OpenXR plugin.
  • The Networked Avatar Building Block silently requires the Avatars SDK Samples to be imported via Package Manager — missing samples cause runtime errors that look like network bugs.
  • Spatial anchor sharing in this project is group-based (as of Meta XR v71); do not regress to user-based sharing APIs when editing colocation code.
  • Assets/MRMotifs/PassthroughTransitioning/Shaders/PassthroughFader.shader requires Cull Off and Render Queue Transparent-1 (2999) — do not change these without re-verifying that the in-sphere fade does not z-fight.

Meta Quest tooling

This is a Meta Quest / Horizon OS sample. The bespoke intro above is the source of truth for what this project is and how it's built — use it (and the files it points at) instead of restating facts from memory.

Read the full file on GitHub · 38 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. 2d ago First seen · 38 lines · 837 tokens per session scan A 373fada0e1c1

Subscribe to this mod's changes

Unity-MRMotifs AGENTS.md is an instructions file published in the GitHub repository oculus-samples/Unity-MRMotifs (236 stars, last pushed 3mo ago), licensed MIT. It adds 837 tokens to every session, about $0.0042 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 2026-08-30.