flutter-layered-architecture-screen-navigation

flutter-layered-architecture-screen-navigation is a skill for Claude Code, Codex from eaglesakura/agent-skills. It costs 202 tokens per session (1,275 once invoked), scanned A, original, MIT.

A Flutter design guide for moving between app screens while keeping each screen independent. Flutter is Google's toolkit for building mobile and other user interfaces; go_router is a library for defining those screen routes.

In plain words
What is it for?
It helps design screen entry and exit interfaces, pass navigation inputs and results, create screen factories, and connect routes through dependency injection.
Why use it?
It prevents screens from depending directly on one another and keeps routing details in one implementation layer, reducing tangled code and circular references.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps design screen entry and exit interfaces, pass navigation inputs and results, create screen factories, and connect routes through dependency injection.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/eaglesakura/agent-skills/flutter-layered-architecture-screen-navigation
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 eaglesakura/agent-skills --skill flutter-layered-architecture-screen-navigation
Clone the repo
git clone --depth 1 https://github.com/eaglesakura/agent-skills

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.

agentmods badge for flutter-layered-architecture-screen-navigation

README.md
[![agentmods](https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-layered-architecture-screen-navigation/github.svg)](https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-layered-architecture-screen-navigation)
Your own site
<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-layered-architecture-screen-navigation"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-layered-architecture-screen-navigation/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 flutter-layered-architecture-screen-navigation

Your own site · 80×15
<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-layered-architecture-screen-navigation"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-layered-architecture-screen-navigation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 202 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,275 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00202 $0.01275
Opus 5.5 $0.00081 $0.00510
Sonnet 5.5 $0.00040 $0.00255
Haiku 4.5 $0.00020 $0.00128

Measured 2mo ago against content hash 7a4c2800f60a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

flutter-layered-architecture-screen-navigation 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 2mo 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.

packages/flutter/.apm/skills/flutter-layered-architecture-screen-navigation/SKILL.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flutter-Layered-Architecture / ナビゲーション

Screen 層の画面間を 疎結合にする。ルーティング実装(推奨: go_router)は impl に閉じ込め、各画面は Factory / Launcher 等の IF 経由で遷移する。

詳細は references/navigation.md(必要なら example/go_router_extensions.md)。

いつ使うか

  • 新規画面の遷移入口(Launcher)・終了(Finisher)・Widget 生成(Factory)を設計するとき
  • 遷移の Request / Result をどこに置くか決めるとき
  • 画面 package 同士の循環参照を避けたいとき
  • ルーティングライブラリの置き場所(impl のみ)を揃えるとき

いつ使わないか

  • 画面内部の MVVM(ViewModel / Entity / onXXXX)→ flutter-layered-architecture-screen-mvvm
  • レイヤー責務の地図だけ → flutter-layered-architecture-design
  • 既存コードの所在調査 → flutter-layered-architecture-code-search
  • Dart 言語規約だけ → flutter-coding-rules

作業手順

  1. 遷移に必要な型を切り出す(Request / Result、必要なら Input)
  2. IF を screen_navigation 側に置く(Factory / Launcher / Finisher 等)
  3. 各画面 package は Factory 実装を提供し、DI で結線する(他 screen を import しない)
  4. go_router 等の具体実装は screen_navigation_impl のみ
  5. 細部・既存パターンは references/navigation.md を読む

原則(要約)

  • 画面 package 同士を直接参照しない。遷移契約は screen_navigation に集約する
  • go_router(や Navigator 直叩き)への依存は impl に閉じる。他 package はルーティング詳細を知らない
  • 典型 IF:
    • {画面名}Factory … Widget 構築(実装は各 screen package)
    • {画面名}Launcher … 遷移の実行(実装は navigation_impl)
    • {画面名}Finisher … 終了と結果返却(必要な画面)
    • {画面名}Proxy … ルート定義と Factory の接続(impl)
    • AppRouterFactory … アプリ全体ルーティング(impl に隠蔽)
  • DI で結線し、ライブラリ差し替えやテスト差し替えを可能にする

パッケージの役割

パッケージ 役割
screen_navigation 遷移 IF と Request/Result。ルーティングライブラリ非依存
screen_navigation_impl go_router 等の実装、Proxy、Launcher 実装、DI
各 screen_* 画面本体 + Factory 実装。他画面や go_router に依存しない

名前はリポジトリにより多少違うが、IF 層 / 実装層 / 画面層の分離を優先して読み替える。

追加ドキュメント

参照 使うとき
navigation.md IF 一覧・パッケージ構成・実装手順
example/go_router_extensions.md go_router 拡張の具体例

ナレッジベース

DO: 遷移契約を navigation IF に寄せ、画面同士を切る

  • Request/Result を screen A が screen B の型にべったり依存させない

Read the full file on GitHub · 89 lines

Files

What ships with it

2 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. 2mo ago First seen · 89 lines · 202 tokens per session scan A 7a4c2800f60a

Subscribe to this mod's changes

flutter-layered-architecture-screen-navigation is a skill published in the GitHub repository eaglesakura/agent-skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 202 tokens to every session and 1,275 once invoked, about $0.0008 per session on Opus 5.5. 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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