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.
npx agentmods add skills/thebeardedbearsas/claude-craft/security-reactnativenpx skills add TheBeardedBearSAS/claude-craft --skill security-reactnativegit clone --depth 1 https://github.com/TheBeardedBearSAS/claude-craftWrote 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.
[](https://agentmods.dev/skills/thebeardedbearsas/claude-craft/security-reactnative)<a href="https://agentmods.dev/skills/thebeardedbearsas/claude-craft/security-reactnative"><img src="https://agentmods.dev/badge/skills/thebeardedbearsas/claude-craft/security-reactnative.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00029 | $0.00355 |
| Opus 5 | $0.00015 | $0.00178 |
| Sonnet 5 | $0.00006 | $0.00071 |
| Haiku 4.5 | $0.00003 | $0.00036 |
Grade A, and why
security-reactnative 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.
What it actually says
Security - React Native 0.85+ Best Practices
Ce skill fournit les bonnes pratiques de sécurité pour React Native 0.85+ avec la New Architecture.
Principes clés
- Sécurité native : Keychain (iOS) / Keystore (Android) pour les secrets sensibles (pas AsyncStorage)
- HTTPS uniquement : ATS (iOS) et Network Security Config (Android) strictes
- JSI synchrone : validation côté natif des appels TurboModules
- Expo SecureStore : abstraction sécurisée cross-platform pour les tokens
Spécificités React Native 0.85+
- TurboModules sécurisés : validation des inputs côté natif avant traitement JSI
- Bridge legacy supprimé : pas de risques de sérialisation JSON vulnérable
- Fabric : rendu natif isolé du thread JS (limite les injections UI)
- Hermes obligatoire : bytecode natif (protection contre le reverse engineering du bundle JS)
Anti-patterns critiques
- ❌ Stocker des tokens dans AsyncStorage (plaintext)
- ❌ HTTP non sécurisé en production
- ❌ Code PIN/biométrie sans SecureStore
- ❌ Deep links non validés (injection de navigation)
- ❌ WebView sans validation de l'origine
Sources : OWASP Mobile Top 10, RN Security Best Practices
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.
- 2d ago First seen · 33 lines · 29 tokens per session scan A 5e2c2bff8b8e
security-reactnative is a skill published in the GitHub repository TheBeardedBearSAS/claude-craft (105 stars, last pushed 3d ago), licensed MIT. It adds 29 tokens to every session and 355 once invoked, about $0.0001 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 2026-09-03.
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