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rn-refactoring

rn-refactoring is a skill for Claude Code, Codex from cmaranho/rn-agent-skills. It costs 59 tokens per session (438 once invoked), scanned A, original, MIT.

A guide for restructuring React Native code while keeping the app's observable behavior the same. It covers extracting functions, components, and hooks, reducing duplication, separating layers, and replacing older patterns.

In plain words
What is it for?
Use it when UI code contains business logic, functions are too long, code is duplicated, or older patterns need to be replaced. It helps prepare code for new features while preserving current behavior.
Why use it?
It helps make complicated code easier to maintain without accidentally changing what the app does. Small changes, tests, and type checks provide protection during the work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 2repo 4mo ago A scan 59 tokens original MIT

Good fit Use it when UI code contains business logic, functions are too long, code is duplicated, or older patterns need to be replaced. It helps prepare code for new features while preserving current behavior.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cmaranho/rn-agent-skills/rn-refactoring
View source ↗ cmaranho/rn-agent-skills
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 cmaranho/rn-agent-skills --skill rn-refactoring
Clone the repo
git clone --depth 1 https://github.com/cmaranho/rn-agent-skills

Made for: Claude Code, Codex.

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 rn-refactoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/cmaranho/rn-agent-skills/rn-refactoring/github.svg)](https://agentmods.dev/skills/cmaranho/rn-agent-skills/rn-refactoring)
Your own site
<a href="https://agentmods.dev/skills/cmaranho/rn-agent-skills/rn-refactoring"><img src="https://agentmods.dev/badge/skills/cmaranho/rn-agent-skills/rn-refactoring/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.

agentmods 80×15 button for rn-refactoring

Your own site · 80×15
<a href="https://agentmods.dev/skills/cmaranho/rn-agent-skills/rn-refactoring"><img src="https://agentmods.dev/badge/skills/cmaranho/rn-agent-skills/rn-refactoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 438 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 $0.00059 $0.00438
Opus 5.5 $0.00024 $0.00175
Sonnet 5.5 $0.00012 $0.00088
Haiku 4.5 $0.00006 $0.00044

Measured 2mo ago against content hash ffb0d01e2f87, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rn-refactoring 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 2mo 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-refactoring/SKILL.md · 52 lines

What it actually says

React Native — Refatoração

Objetivo

Melhorar a estrutura interna do código sem mudar o comportamento observável.

Quando utilizar

  • Lógica de negócio na UI, funções longas, duplicação ou alto acoplamento.
  • Migrar um padrão legado para o padrão atual do projeto.
  • Preparar terreno para uma nova feature.

Conhecimentos necessários

  • Refatorações seguras (extract function/component/hook, mover, renomear).
  • Rede de segurança de testes; characterization tests.
  • Padrões-alvo do projeto (camadas, mappers/helpers, tokens).
  • Controle de versão para mudanças pequenas e reversíveis.

Fluxo de execução

  1. Garanta cobertura de teste do comportamento atual (adicione se faltar).
  2. Faça mudanças pequenas e atômicas; um objetivo por passo.
  3. Rode testes/typecheck após cada passo; mantenha tudo verde.
  4. Extraia responsabilidades para a camada correta (hook, caso de uso, mapper/helper, UI).
  5. Remova código morto e duplicação; atualize imports/barrels.

Boas práticas

  • Nunca refatore e altere comportamento no mesmo commit.
  • Commits pequenos e reversíveis, com mensagens claras.
  • Preserve comentários que carregam intenção.
  • Migre legado apenas no escopo tocado.

Armadilhas comuns

  • Refatorar sem testes (mudança de comportamento silenciosa).
  • Refactor "big bang" difícil de revisar/reverter.
  • Misturar refactor com feature/bugfix.
  • Renomear em massa sem verificar todos os usos.

Critérios de sucesso

  • Comportamento inalterado; testes verdes antes e depois.
  • Complexidade/duplicação reduzidas; camadas respeitadas.
  • Mudança revisável e reversível.
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. 2mo ago First seen · 52 lines · 59 tokens per session scan A ffb0d01e2f87

Subscribe to this mod's changes

rn-refactoring is a skill published in the GitHub repository cmaranho/rn-agent-skills (2 stars, last pushed 4mo ago), licensed MIT. It adds 59 tokens to every session and 438 once invoked, about $0.0002 per session on Opus 5.5. 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.

Code reviewMobile
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