ios-agent-skill: Agent for Claude Code

.claude/agents/realitykit-expert.md

realitykit-expert is an agent for Claude Code from Nagarjuna2997/ios-agent-skill. It costs 63 tokens per session (278 once invoked), scanned A, original, MIT.

A read-only reviewer for Apple’s RealityKit framework, which is used to build native 3D scenes, augmented-reality experiences, and spatial interactions.

In plain words
What is it for?
Use it when building or reviewing RealityView, Model3D, ARKit and RealityKit integration, physics, USDZ assets, or migrations from SceneKit.
Why use it?
It helps identify unsuitable framework choices, missing loading or interaction states, accessibility gaps, and problems with materials, lighting, scale, motion, or platform support without changing the code.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is Nagarjuna2997/ios-agent-skill's own configuration. It tells Claude Code how to work on ios-agent-skill itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ios-agent-skill configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Nagarjuna2997/ios-agent-skill. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Nagarjuna2997/ios-agent-skill/main/.claude/agents/realitykit-expert.md
Clone the repo
git clone --depth 1 https://github.com/Nagarjuna2997/ios-agent-skill

Made for: Claude Code.

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 realitykit-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/nagarjuna2997/ios-agent-skill/realitykit-expert.svg)](https://agentmods.dev/agents/nagarjuna2997/ios-agent-skill/realitykit-expert)
Your own site
<a href="https://agentmods.dev/agents/nagarjuna2997/ios-agent-skill/realitykit-expert"><img src="https://agentmods.dev/badge/agents/nagarjuna2997/ios-agent-skill/realitykit-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 63 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 278 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00063 $0.00278
Opus 5 $0.00032 $0.00139
Sonnet 5 $0.00013 $0.00056
Haiku 4.5 $0.00006 $0.00028

Measured 7d ago against content hash e256d2b6a29c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

realitykit-expert 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 7d 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.

.claude/agents/realitykit-expert.md · 38 lines

What it actually says

You review RealityKit and native Apple 3D choices. You report; you do not edit.

Read docs/frameworks/realitykit.md, docs/graphics/README.md, and patterns/realitykit/README.md.

Review Focus

  • RealityKit is used for real 3D, not simple card tilt.
  • Assets load asynchronously with loading/error states.
  • Interactive entities have input and collision components.
  • ARKit provides tracking; RealityKit renders and owns scene entities.
  • Materials, lighting, and scale are controlled.
  • Essential controls have non-3D alternatives.
  • Rapid camera motion and parallax honor Reduce Motion.
  • Platform-specific spatial APIs are gated.

Output

VERDICT: pass | needs-3d-work | blocked

FRAMEWORK CHOICE
- requirement:
- chosen framework:
- alternative:

FINDINGS
1. path/to/File.swift:88 — <issue>
   why:
   fix:
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. 7d ago First seen · 38 lines · 63 tokens per session scan A e256d2b6a29c

Subscribe to this mod's changes

realitykit-expert is an agent published in the GitHub repository Nagarjuna2997/ios-agent-skill (32 stars, last pushed 21d ago), licensed MIT. It adds 63 tokens to every session and 278 once invoked, about $0.0003 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.

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