flutter-app

A setup skill for starting a new Flutter mobile app in Dart. Flutter is a framework for building Android and iOS apps from one codebase, and this skill applies a specified project structure, package set, and release workflow.

In plain words
What is it for?
Use it to start a cross-platform mobile app, choose its backend and repository setup, configure the Flutter SDK, and prepare architecture, testing, CI, and store delivery.
Why use it?
It gives a new app a consistent starting structure and checks the project brief and configuration choices before scaffolding begins.

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/ccplugins/awesome-claude-code-plugins/flutter-app
Any agent
npx skills add ccplugins/awesome-claude-code-plugins --skill flutter-app
Clone the repo
git clone --depth 1 https://github.com/ccplugins/awesome-claude-code-plugins

Made for: Claude Code, Codex.

Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,108 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 $0.00096 $0.01108
Opus 5 $0.00048 $0.00554
Sonnet 5 $0.00019 $0.00222
Haiku 4.5 $0.00010 $0.00111

Measured 2d ago against content hash e21280ef7f95, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

flutter-app 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/check-latest.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/app-starter/skills/flutter-app/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

flutter-app

Bootstrap a new Flutter app the way this owner builds them: FVM-pinned SDK, clean architecture (feature-first), Riverpod for state, an Either/Failure error model, current stable packages, and the house git and CI workflow with release-please and Play Store delivery.

First read the shared rules (they override anything you remember): ../shared/house-rules.md, ../shared/no-ai-attribution.md, ../shared/git-and-ci.md, ../shared/docs-and-context.md, ../shared/hardening.md, and (for public repos) ../shared/open-source-docs.md.

Step 0. Get the brief, then ask the variant questions (hard stop)

This is a hard stop. Do not run any scaffolding command until the user has answered.

First, get the project brief: one paragraph on what the app does, its main features, target users, and any hard constraints. If the user has not given one, ask for it. The brief drives naming, the feature list, and the data model.

Then ask the variant questions. If a choice has multiple options, ask; do not assume. Ask in one batch, then proceed.

  1. Repo visibility: private, open-source, or private-plus-open-source.
  2. Backend: BYOK (each user supplies their own LLM key, no backend), a custom backend (Dio + JWT auth), or none yet. See references/architecture.md.
  3. State codegen: Riverpod with codegen (@riverpod + build_runner) or plain Riverpod with hand-written providers. Default: codegen.
  4. Local data: Drift, Isar, shared_preferences only, or none yet.
  5. Auth: Google Sign-In, none, or backend-driven.
  6. Release target: Play Store (default), App Store, or both.

If the user already answered some, do not re-ask.

Step 1. Pin the SDK with FVM and verify versions

  • Use FVM so the SDK is pinned per project: fvm use stable (or a specific stable). Every command runs through fvm flutter ....
  • Run fvm flutter --version and record the real Flutter and Dart versions in the project docs.
  • Run scripts/check-latest.sh for current stable package versions from pub.dev. Pin those, not versions from memory (../shared/house-rules.md rule 2).
  • Pull current docs for Flutter, Riverpod, and any codegen packages via Context7 before writing code (../shared/docs-and-context.md). Riverpod's provider syntax and codegen naming change between majors; confirm before writing.

Read the full file on GitHub · 93 lines

Files

What ships with it

5 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 · 93 lines · 96 tokens per session scan A e21280ef7f95

Subscribe to this mod's changes

flutter-app is a skill published in the GitHub repository ccplugins/awesome-claude-code-plugins (926 stars, last pushed 20d ago), licensed Apache-2.0. It adds 96 tokens to every session and 1,108 once invoked, about $0.0005 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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