What is rn-newarch-audit?

A read-only audit tool for React Native apps, which are mobile applications built with JavaScript or TypeScript. It checks whether the app and its libraries are ready for React Native's New Architecture, a newer way to connect app code with native iOS and Android code.

Use it before enabling the New Architecture or planning a React Native upgrade. It reports the current setting, library support, unmaintained packages, and native code still using older interfaces.

It identifies dependencies and native modules that may block an upgrade before the project is changed. The audit reports findings but does not perform the migration.

rn-newarch-audit — Skill for Claude Code by AndrewDongminYoo

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.

Any agent

npx skills add AndrewDongminYoo/rn-agents-kit --skill rn-newarch-audit

Clone the repo

git clone --depth 1 https://github.com/AndrewDongminYoo/rn-agents-kit

Made for: Claude Code.

Or install rn-agents-kit, the plugin that ships this one along with the rest of its 10 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/andrewdongminyoo/rn-agents-kit/rn-newarch-audit/github.svg)](https://agentmods.dev/skills/andrewdongminyoo/rn-agents-kit/rn-newarch-audit)

Your own site

<a href="https://agentmods.dev/skills/andrewdongminyoo/rn-agents-kit/rn-newarch-audit"><img src="https://agentmods.dev/badge/skills/andrewdongminyoo/rn-agents-kit/rn-newarch-audit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/andrewdongminyoo/rn-agents-kit/rn-newarch-audit"><img src="https://agentmods.dev/badge/skills/andrewdongminyoo/rn-agents-kit/rn-newarch-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,566 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.

Model	Per session	Once invoked
Fable 5.1	$0.00060	$0.01566
Opus 5	$0.00030	$0.00783
Sonnet 5	$0.00012	$0.00313
Haiku 4.5	$0.00006	$0.00157

Measured 11d ago against content hash 47c1f96cca71, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

rn-newarch-audit 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 11d 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.

skills/rn-newarch-audit/SKILL.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

RN New Architecture Audit — Is This App Ready?

Overview

Drives the rn-newarch-ready CLI to produce a read-only New Architecture readiness report for a React Native project: the current New Arch enablement state, every dependency classified by support, archived/unmaintained libraries, and app-local native modules still on legacy APIs. This skill is the judgment + interpretation layer; rn-newarch-ready does the deterministic parsing and classification. Nothing is ever modified — the audit is the whole job here. Performing the migration is a separate, explicitly-consented step.

When to Use

"is my app ready for the New Architecture?", "what blocks enabling New Arch?"
Planning an RN version upgrade and scoping the New Arch work
Auditing dependencies before flipping newArchEnabled
Deciding which libraries to replace, upgrade, or verify first

Prerequisites

Node ≥ 20 — rn-newarch-ready requires it; install with nvm use 20 if needed.
A React Native project with dependencies installed (node_modules present) — classification reads each dependency's codegenConfig, so an uninstalled dep can only be reported not-installed.
Network for the directory enrichment step; offline still works (--offline) with reduced coverage, and the tool says so.

Quick Steps

1 — Run the audit (read-only)

npx rn-newarch-ready                 # human-readable report for the current project
npx rn-newarch-ready ./path/to/app   # a specific project

2 — Capture the machine report when you need to reason over it

npx rn-newarch-ready --json

3 — Interpret and present (see Interpreting the Report)

Summarize the verdict and group the findings by action. Change nothing — this skill stops at the report.

How It Works

package.json + node_modules        rn-newarch-ready
  each dep's codegenConfig  ──►  local classify  ──►  supported / unknown / not-native / not-installed
                                       │
  reactnative.directory (cached)  ─────┤ enrich unknowns (library-level)
                                       ▼
                                 likely-supported  +  archived flag
  android/ ios/ app source  ──►  legacy-API scan  ──►  app-local native modules to migrate

                                 roll-up  ──►  verdict: ready | needs-review   (READ-ONLY)

Read the full file on GitHub · 124 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.

11d ago First seen · 124 lines · 60 tokens per session scan A 47c1f96cca71

Subscribe to this mod's changes

rn-newarch-audit is a skill published in the GitHub repository AndrewDongminYoo/rn-agents-kit (2 stars, last pushed 7d ago), licensed Apache-2.0. It adds 60 tokens to every session and 1,566 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 2026-08-31.

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