A setup tool for separate Flutter app environments such as development, staging, and production. Flutter is a framework for building apps, and each environment can use different settings such as API endpoints or app identifiers.

Use it to configure Dart build variables, Android product flavors, iOS schemes, bundle IDs, app names, and environment-specific services.

It keeps testing and production configurations separate and replaces runtime .env loading with values supplied when the app is built.

flavors — Skill for Claude Code and Codex by launch52-ai: A setup tool for separate Flutter app environments such…

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/flavors

Any agent

npx skills add launch52-ai/flutter-template --skill flavors

Clone the repo

git clone --depth 1 https://github.com/launch52-ai/flutter-template

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/launch52-ai/flutter-template/flavors.svg)](https://agentmods.dev/skills/launch52-ai/flutter-template/flavors)

Your own site

<a href="https://agentmods.dev/skills/launch52-ai/flutter-template/flavors"><img src="https://agentmods.dev/badge/skills/launch52-ai/flutter-template/flavors.svg" alt="Measured on agentmods" height="20"></a>

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,486 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.

Model	Per session	Once invoked
Fable 5	$0.00062	$0.01486
Opus 5	$0.00031	$0.00743
Sonnet 5	$0.00012	$0.00297
Haiku 4.5	$0.00006	$0.00149

Measured 4d ago against content hash fb00b8f56ede, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

flavors 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 4d 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/flavors/SKILL.md · 178 lines

How it starts

The opening of the file, as written. The whole thing — 178 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flavors - Environment Configuration

Configure dev, staging, and production environments with separate configurations, bundle IDs, and app names.

When to Use This Skill

Setting up multiple environments (dev, staging, prod)
Separating API endpoints per environment
Using different bundle IDs for each environment
Configuring environment-specific Firebase/Supabase projects
User asks "add flavors", "setup environments", "separate dev/prod"

When NOT to Use This Skill

Single environment projects - Use /init with single .env
CI/CD setup - Use /ci-cd after flavors are configured
Basic Firebase setup - Use /analytics first, then add per-flavor config

Important: Migration from flutter_dotenv

This skill REPLACES flutter_dotenv runtime loading with compile-time variables.

If your project uses /init's approach (await dotenv.load()), running /flavors will:

Remove flutter_dotenv dependency
Replace .env runtime loading with --dart-define-from-file build flags
Create FlavorConfig class using String.fromEnvironment()

Why compile-time? Secrets are not bundled in the app binary - they're injected at build time.

Integration with /core

FlavorConfig handles:

Flavor identification (isDev, isProd, isStaging)
Per-flavor API URLs and service credentials

DebugConstants (from /core) handles:

Debug/mock flags (useMockAuth, useMockApi)
Logging and UI debug options

Keep feature flags in DebugConstants, flavor config in FlavorConfig.

Questions to Ask

Flavor count: How many environments? (dev + prod, dev + staging + prod)
Bundle ID pattern: How should bundle IDs differ? (suffix: .dev)
App name pattern: How should app names differ? (suffix: " (Dev)")
Firebase: Separate Firebase projects per flavor? (yes/no)
Supabase: Separate Supabase projects per flavor? (yes/no)

Quick Reference

Flavor	Bundle ID Suffix	App Name Suffix	Purpose
dev	`.dev`	`(Dev)`	Local development
staging	`.staging`	`(Staging)`	QA/testing
prod	(none)	(none)	Production release

Read the full file on GitHub · 178 lines

Files

What ships with it

15 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.

4d ago First seen · 178 lines · 62 tokens per session scan A fb00b8f56ede

Subscribe to this mod's changes

flavors is a skill published in the GitHub repository launch52-ai/flutter-template (2 stars, last pushed 6mo ago), licensed MIT. It adds 62 tokens to every session and 1,486 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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flavors