react-native-platform-integration

Guidance for React Native and Expo changes that cross from JavaScript into iOS or Android platform code. It covers permissions, native modules, app configuration, deep links, notifications, secure storage, lifecycle behavior, and platform-specific settings.

In plain words
What is it for?
Use it when adding or reviewing native capabilities, permissions, push notifications, background work, secure storage, deep links, or iOS and Android build settings.
Why use it?
It helps ensure platform changes are authorized, configured for each environment, and checked on the actual mobile platforms.

Skill for Claude CodeCodex

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 skills/evolplus/talos/react-native-platform-integration
Any agent
npx skills add evolplus/talos --skill react-native-platform-integration
Clone the repo
git clone --depth 1 https://github.com/evolplus/talos

Made for: Claude Code, Codex.

Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 748 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00058 $0.00748
Opus 5 $0.00029 $0.00374
Sonnet 5 $0.00012 $0.00150
Haiku 4.5 $0.00006 $0.00075

Measured 2d ago against content hash 63cf2ecb7dd3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

react-native-platform-integration 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.

skills/react-native-platform-integration/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

React Native Platform Integration

When to use

Use this for React Native/Expo work that crosses the JS/native boundary: native modules, permissions, platform files, app config, deep links, push notifications, background tasks, secure storage, lifecycle hooks, or iOS/Android-specific behavior. Load it alongside react-native-implementation.

Inputs and outputs

  • Inputs: SRS/architecture permission and platform requirements, API contracts, env configuration, existing Expo/bare RN setup, iOS/Android project files, current native module inventory.
  • Outputs: platform changes that are approved by architecture, configured per environment, covered by smoke/build checks, and documented in task notes or deploy reports when QA/DevOps needs them.

Procedure

  1. Classify the runtime:
    • Expo managed: prefer config plugins and Expo APIs already present;
    • Expo prebuild: understand generated native files and project rules before editing;
    • bare RN: edit native iOS/Android files directly only when the task requires it.
  2. Check authorization before changing platform capabilities:
    • new permissions, native modules, background modes, push notifications, app groups, associated domains, and platform services require architecture/dependency approval;
    • if the requirement is absent, halt with an OQ instead of silently adding capability.
  3. Implement environment-safe config:
    • use SRS §3.4.6 keys and existing config loaders;
    • keep dev/staging/prod endpoints out of source literals;
    • expose only non-secret values to JS bundles.
  4. Keep permission UX complete:
    • update iOS usage descriptions and Android permission declarations;
    • provide user-facing rationale/copy where required by the feature;
    • handle denied, restricted, unavailable, and recoverable states in UI.
  5. Isolate platform differences:
    • use .ios.tsx / .android.tsx, platform adapters, or config modules for real divergence;
    • keep shared UI unaware of native file details.
  6. Verify platform behavior:
    • run at least one affected platform build/check when native files or permissions change;
    • test deep links, push/open flows, storage migration, or lifecycle paths on the relevant simulator/emulator/device;
    • record any platform that could not be checked.

Read the full file on GitHub · 59 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 59 lines · 58 tokens per session scan A 63cf2ecb7dd3

Subscribe to this mod's changes

react-native-platform-integration is a skill published in the GitHub repository evolplus/talos (8 stars, last pushed 28d ago), licensed Apache-2.0. It adds 58 tokens to every session and 748 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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