release

A guide for preparing Flutter apps for release through Apple’s App Store and Google Play. It covers signing the app, icons, splash screens, store setup, and production builds.

In plain words
What is it for?
Use it for Android keystores, iOS certificates and provisioning, store configuration, release-readiness checks, and APK, app bundle, or IPA builds.
Why use it?
It brings the platform-specific release steps together so an app can be checked and packaged for distribution.

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/launch52-ai/flutter-template/release
Any agent
npx skills add launch52-ai/flutter-template --skill release
Clone the repo
git clone --depth 1 https://github.com/launch52-ai/flutter-template

Made for: Claude Code, Codex.

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,492 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 $0.00052 $0.01492
Opus 5 $0.00026 $0.00746
Sonnet 5 $0.00010 $0.00298
Haiku 4.5 $0.00005 $0.00149

Measured 2d ago against content hash 8909163b767c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

release 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.

.claude/skills/release/SKILL.md · 200 lines

How it starts

The opening of the file, as written. The whole thing — 200 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Release - App Store & Play Store Preparation

Prepare Flutter apps for production release. Handles signing, icons, splash screens, and store setup.

When to Use This Skill

  • Setting up Android signing (keystore, key.properties)
  • Configuring iOS signing (certificates, provisioning profiles)
  • Creating app icons for iOS and Android
  • Setting up splash screens
  • Preparing for App Store Connect or Google Play Console
  • Verifying release readiness
  • Building release APK/AAB/IPA

Manual vs CI/CD Release

Approach Use When Signing
Manual (this skill) First release, small team Local keystore, Xcode
CI/CD (/ci-cd) Regular releases, teams GitHub Secrets, Fastlane

Recommendation: Start with manual release. Set up CI/CD when you need automation.

Quick Reference

Platform Requirements

Platform Signing Store Build Command
Android Keystore + key.properties Play Console flutter build appbundle --release
iOS Xcode Team + Provisioning App Store Connect flutter build ipa --release

Commands

# Audit release readiness
dart run .claude/skills/release/scripts/check.dart

# Build release
flutter build appbundle --release  # Android
flutter build ipa --release        # iOS
check.dart Option Purpose
--platform android/ios Audit specific platform only
--fix Auto-fix .gitignore patterns
--checklist Generate markdown checklist
--capabilities Detect required iOS capabilities
--keytool-command Generate keystore creation command

Workflow

1. Audit Current State

dart run .claude/skills/release/scripts/check.dart

Identifies: Missing keystore, unsigned iOS, missing icons, uncommitted .env files.

2. Create Assets

See assets-guide.md:

  • App icon: 1024x1024 PNG (no transparency for iOS)
  • Splash screen: Configure flutter_native_splash

Read the full file on GitHub · 200 lines

Files

What ships with it

8 files 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 · 200 lines · 52 tokens per session scan A 8909163b767c

Subscribe to this mod's changes

release is a skill published in the GitHub repository launch52-ai/flutter-template (2 stars, last pushed 6mo ago), licensed MIT. It adds 52 tokens to every session and 1,492 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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