expo-launchpad-generator

expo-launchpad-generator is a skill for Claude Code from SummerRiversound/expo-launchpad. It costs 85 tokens per session (9,789 once invoked), scanned C, original, MIT.

A guided workflow for building an Expo app or game, using React Native and TypeScript in three checked stages.

In plain words
What is it for?
Use it to scaffold and develop an Expo app or game, add its systems and features, then finish its interface, content, and polish.
Why use it?
It catches type, lint, and test problems before the next stage begins. Later rounds focus only on failures found by the evaluator.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the expo-launchpad plugin — 9 skills shipped together

Good fit Use it to scaffold and develop an Expo app or game, add its systems and features, then finish its interface, content, and polish.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/summerriversound/expo-launchpad/expo-launchpad-generator
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 SummerRiversound/expo-launchpad --skill expo-launchpad-generator
Clone the repo
git clone --depth 1 https://github.com/SummerRiversound/expo-launchpad

Made for: Claude Code.

Or install expo-launchpad, the plugin that ships this one along with the rest of its 9 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.

agentmods badge for expo-launchpad-generator

README.md
[![agentmods](https://agentmods.dev/badge/skills/summerriversound/expo-launchpad/expo-launchpad-generator/github.svg)](https://agentmods.dev/skills/summerriversound/expo-launchpad/expo-launchpad-generator)
Your own site
<a href="https://agentmods.dev/skills/summerriversound/expo-launchpad/expo-launchpad-generator"><img src="https://agentmods.dev/badge/skills/summerriversound/expo-launchpad/expo-launchpad-generator/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 expo-launchpad-generator

Your own site · 80×15
<a href="https://agentmods.dev/skills/summerriversound/expo-launchpad/expo-launchpad-generator"><img src="https://agentmods.dev/badge/skills/summerriversound/expo-launchpad/expo-launchpad-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,789 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00085 $0.09789
Opus 5.5 $0.00034 $0.03916
Sonnet 5.5 $0.00017 $0.01958
Haiku 4.5 $0.00009 $0.00979

Measured 23d ago against content hash 226c3ded1782, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

expo-launchpad-generator scanned grade C with 1 finding 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 23d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf app/(tabs) components/HelloWave.tsx components/ParallaxScrollView.tsx \
skills/expo-launchpad-generator/SKILL.md · 725 lines

How it starts

The opening of the file, as written. The whole thing — 725 lines — stays where its author put it; the contents beside it link to each section on GitHub.

expo-launchpad-generator

Phase A, step 5 of the expo-launchpad pipeline. Builds the Expo (React Native + TypeScript) app or game in three gated sub-phases (6a → 6b → 6c), branching every step by config.md's kind (app | game). Each sub-phase ends with a HARD GATE (npx tsc --noEmit && npx expo lint && npx jest, all green) before the next sub-phase begins. On round N > 1, reads the previous evaluator feedback and fixes only the listed failures.

All file schemas (config.md, state.md, contract.md, handoff/round-N-gen.md, feedback/round-N-qa.md, the log tables) and the phase transition table are defined in docs/harness-protocol.md — that document is the single source of truth (§2 for state.md schema; §4 for handoff layout; §6 for log tables; §7 for the generator → evaluator transition). Do not redefine schemas here. Every platform-robustness pattern (audio, haptics, lifecycle, performance, persistence, accessibility, build/platform) is defined once in docs/app-gotchas.md (R1–R11) — cite it; do not restate the patterns.


Round Handling and Feedback Intake

Workspace root

docs/harness/ is bootstrapped by the orchestrator in the directory the pipeline was invoked from — call this the workspace root. It stays there for the entire pipeline and is never moved or copied into the generated project. Before any other step (including the round-1/round-N reads below), capture the workspace root once:

ROOT="$(pwd)"

From this point on, every harness file (config.md, state.md, contract.md, plans/*, handoff/*, feedback/*, pipeline-log.md, build-log.md, screenshots/*) — whether read or written via a Bash redirect, or read/written via the Write/Edit tools — uses the root-absolute path "$ROOT/docs/harness/...", never a path relative to whatever directory the shell happens to be in at the time. ROOT is fixed once, the same way <app_slug> and <N> are: treat it as a value substituted verbatim into every command below, not a live shell variable that needs to survive between separate tool invocations. This is what keeps --resume and the status/resume skills working: they read docs/harness/state.md at a fixed path relative to the invocation directory, forever.

Read the full file on GitHub · 725 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. 23d ago Changed · +9 lines 226c3ded1782
  2. 2mo ago First seen · 716 lines · 85 tokens per session scan C b45e4973c75f

Subscribe to this mod's changes

expo-launchpad-generator is a skill published in the GitHub repository SummerRiversound/expo-launchpad (2 stars, last pushed 23d ago), licensed MIT. It adds 85 tokens to every session and 9,789 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

expo-launchpad-generator compared with skills from other repositories

expo-launchpad-generator next to 6 skills from other repositories
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expo-launchpad-generatorSummerRiversound/expo-launchpadSkill223d agoMITC85Claude Code
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react-nativeericrisco/rsc-harnessSkill606yesterdayMITA90Claude Code, Codex
uniwinduni-stack/uniwindSkill1.8kyesterdayMITA130Claude Code, Codex