flutter-layered-architecture-library-update

flutter-layered-architecture-library-update is a skill for Claude Code, Codex from eaglesakura/agent-skills. It costs 175 tokens per session (1,451 once invoked), scanned A, original, MIT.

A dependency-update guide for Flutter workspaces using layered architecture. Flutter is Google's toolkit for building apps, and a workspace is a repository containing multiple related packages.

In plain words
What is it for?
Finding outdated Dart or Flutter package dependencies, selecting resolvable updates, running dependency installation, and checking the result with analysis, tests, or builds.
Why use it?
It focuses version changes in the root dependency overrides so packages use compatible versions together, then checks that the workspace still works.

Skill for Claude CodeCodex

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

Good fit Finding outdated Dart or Flutter package dependencies, selecting resolvable updates, running dependency installation, and checking the result with analysis, tests, or builds.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/eaglesakura/agent-skills/flutter-layered-architecture-library-update
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-library-update
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.

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README.md
[![agentmods](https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-layered-architecture-library-update/github.svg)](https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-layered-architecture-library-update)
Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-layered-architecture-library-update"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-layered-architecture-library-update.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 175 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,451 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 $0.00175 $0.01451
Opus 5 $0.00088 $0.00726
Sonnet 5 $0.00035 $0.00290
Haiku 4.5 $0.00017 $0.00145

Measured 12d ago against content hash ea4cc1a44c9a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

flutter-layered-architecture-library-update 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 12d 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-library-update/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flutter-Layered-Architecture / ライブラリ更新

workspace 全体の pub パッケージ版を、ルートの dependency_overrides 経由で揃えて更新する。 SDK(Flutter/Dart 本体)の版調査は対象外。コマンド例は flutter / dart 本体で示す(mise / fvm 等はリポジトリ規約に任せる)。

いつ使うか

  • flutter pub outdated で古くなった依存を洗い出すとき
  • ルート dependency_overrides の版を上げる/揃えるとき
  • 更新後の pub get・解析・テスト・ビルドで妥当性を確認するとき

いつ使わないか

  • Flutter SDK の最新版・CHANGELOG 調査 → flutter-maintenance-check-latest-version
  • workspace の package 一覧・レイアウト把握だけ → flutter-layered-architecture-workspace
  • アプリ起動・ランタイムデバッグ → flutter-app-debug
  • 文言/L10n → flutter-monolith-localization
  • extension type 等の言語規約だけ → flutter-coding-rules

前提(なぜ overrides か)

Layered Architecture の workspace では、各 package の dependencies は多く any(または緩い制約)にし、実効バージョンはルート dependency_overrides で一括固定する慣習が多い。 個別 package の pubspec.yaml だけを上げても全体が揃わないため、更新の主戦場はルート overrides である。

作業手順

  1. 現状を把握する

    • ルート pubspec.yamldependency_overridesenvironment(sdk / flutter)を読む
    • 必要なら現在の解決結果(lock)も確認する
  2. 更新候補を取得する

    flutter pub outdated
    
    • 機械処理するなら flutter pub outdated --json も可
    • Resolvable(および Current / Upgradable / Latest の関係)を見て上げられる版を判断する
    • 互換性や制約で上がらないものはスキップし、理由を残す
  3. ルート dependency_overrides を更新する

    dependency_overrides:
      some_package: "^x.y.z"  # 必要に応じて更新
    
    • 子 package 側を ^… に変えず、overrides を正とする(慣習が any の場合)
    • 壊れる見込みが大きいメジャー上げは、CHANGELOG/移行ガイドを見てから、またはユーザー確認後
  4. 依存を再解決する

    flutter pub get
    
    • アプリ package(多くは app/)がある場合は、そこでも flutter pub get する
    • iOS の CocoaPods 等は、リポジトリに手順があればそれに従う(無い場合は無理に Podfile.lock 削除を強要しない)
  5. 妥当性を検証する(失敗時は次節の切り戻し)

    • Analyzer が通る
    • 関連テストが通る
    • 必要なら対象プラットフォームのビルドが通る
  6. 結果を報告する(更新した/スキップした/検証したこと)

「妥当」の判断基準

  • Analyzer が Success
  • 各種テストが Success
  • 最終的なプラットフォームアプリ(Android / iOS / Web 等)のビルドが Success(実施した場合)

問題が起きたときの対処順

  1. 対象 package の README / CHANGELOG / 破壊的変更を確認する
  2. コンパイルエラーを最小差分で直す
  3. パッチ → マイナーの範囲で版を調整する
  4. それでも無理なら 元の overrides に切り戻す(無理な上げっぱなしにしない)

Read the full file on GitHub · 116 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. 12d ago First seen · 116 lines · 175 tokens per session scan A ea4cc1a44c9a

Subscribe to this mod's changes

flutter-layered-architecture-library-update is a skill published in the GitHub repository eaglesakura/agent-skills (2 stars, last pushed 6d ago), licensed MIT. It adds 175 tokens to every session and 1,451 once invoked, about $0.0009 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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