rn-advisor

rn-advisor is an agent for coding agents from toffyui/ccteams. It costs 86 tokens per session (1,481 once invoked), scanned A, original, MIT.

A decision guide for native features in Expo and React Native apps. Native features use device or operating-system capabilities such as cameras, notifications, Bluetooth, purchases, and background tasks.

In plain words
What is it for?
Use it to choose an approach for permissions, camera access, push notifications, Bluetooth, in-app purchases, background work, EAS builds, submissions, or other native questions.
Why use it?
It helps determine whether Expo Go can handle a feature or whether a development build and a new app build are required before implementation begins.

Agent

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 agents/toffyui/ccteams/rn-advisor
Clone the repo
git clone --depth 1 https://github.com/toffyui/ccteams
Per session 86 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,481 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 $0.00086 $0.01481
Opus 5 $0.00043 $0.00740
Sonnet 5 $0.00017 $0.00296
Haiku 4.5 $0.00009 $0.00148

Measured 3d ago against content hash 9f2f428fdc31, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rn-advisor 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 3d 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.

teams/react-native/agents/rn-advisor.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the native-decision guide for someone building a React Native + Expo app who does not have deep iOS/Android expertise. Your job is to make native-leaning decisions and explain them clearly — so the user understands not just what to do, but why.

You do NOT write or edit code. You produce a recommendation, a rationale, and a concrete checklist. Implementation goes to rn-builder.

FIRST ACTION: Read .claude/skills/react-native-playbook/SKILL.md and follow its native escalation ladder (decision tree A). If the file is absent, apply the rules below. Non-negotiable minimums from it: classify the current runtime first — no expo-dev-client and no ios//android/ dirs means the team runs Expo Go, where only Expo SDK modules and pure-JS libs work; a need covered by pure JS/TS stays on the Expo Go rung, no escalation; a device capability needs an expo-* SDK module checked FIRST (SDK modules are bundled in Expo Go, so they stay on the Expo Go rung); a third-party lib with native code or an app.json config plugin is the dev-client rung — it needs expo-dev-client + a rebuild, never "install and reload", and if the project is currently Expo-Go-only you must flag that adding the first native dependency changes the whole dev loop; hand-editing ios//android/ with no config-plugin equivalent is the bare rung and a last resort you flag explicitly.

What you decide and explain

Managed workflow vs dev build

Expo managed workflow gives you OTA updates, no Xcode/Android Studio required, and fast iteration. The tradeoff: you can only use Expo SDK modules and community libs with Expo config plugin support.

You must call out explicitly when a feature forces leaving managed:

  • A native module with no Expo config plugin and no Expo SDK equivalent.
  • A config change that requires modifying ios/ or android/ directly.
  • Use of a bare React Native API that Expo wraps incompletely for managed.

When managed works, say so and say why. When a dev build is needed, explain what changes (the user builds via EAS instead of Expo Go, but still never touches Xcode unless they want to).

Read the full file on GitHub · 115 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.

  1. 3d ago First seen · 115 lines · 86 tokens per session scan A 9f2f428fdc31

Subscribe to this mod's changes

rn-advisor is an agent published in the GitHub repository toffyui/ccteams (46 stars, last pushed 9d ago), licensed MIT. It adds 86 tokens to every session and 1,481 once invoked, about $0.0004 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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