What is flutter-maintenance-check-latest-version?

A research guide for checking Flutter SDK releases and comparing them with the version installed locally. Flutter is Google's toolkit for building applications from one codebase for mobile, web, and desktop.

Use it to list released Flutter versions, check the local SDK version, and summarize changes from the official Flutter changelog.

It removes guesswork when deciding whether to upgrade Flutter and when reviewing what changed between versions.

flutter-maintenance-check-latest-version

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-maintenance-check-latest-version

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-maintenance-check-latest-version/github.svg)](https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-maintenance-check-latest-version)

Your own site

<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-maintenance-check-latest-version"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-maintenance-check-latest-version/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-maintenance-check-latest-version"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-maintenance-check-latest-version.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 158 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,512 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.

Model	Per session	Once invoked
Fable 5.1	$0.00158	$0.01512
Opus 5.5	$0.00063	$0.00605
Sonnet 5.5	$0.00032	$0.00302
Haiku 4.5	$0.00016	$0.00151

Measured 2mo ago against content hash 6c43d7160372, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

flutter-maintenance-check-latest-version 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-maintenance-check-latest-version/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flutter / 最新バージョン調査

Flutter SDK（flutter/flutter）のリリース済みバージョンと変更点を調べ、現在のローカル SDK との差を把握する。 Dart / pub 依存の更新手順そのものは対象外である（隣接 SKILL へ委ねる）。コマンド例はツール本体（flutter / gh）で示す。mise / fvm 等のラッパーはリポジトリの AGENTS.md やローカル規約に任せ、本 SKILL には埋め込まない。

いつ使うか

Stable 等の最新 Flutter SDK バージョンを知りたいとき
メジャー／マイナー（例: 3.x）に絞った候補一覧が欲しいとき
現在の flutter --version と対象バージョンの CHANGELOG 差分を要約したいとき

いつ使わないか

flutter pub outdated や dependency_overrides の更新 → flutter-layered-architecture-library-update
アプリ起動・ランタイムデバッグ → flutter-app-debug
文言／L10n → flutter-monolith-localization

手順概要

ローカルの現在バージョンを把握する
flutter/flutter の tag からリリース済み候補を列挙する（必要ならメジャーで絞る）
CHANGELOG.md（master）から対象バージョンの変更サマリを取る
assets/report.md の型で報告する

1. 現在バージョン

flutter --version

Framework / Channel / リビジョンを控える
ユーザーが「今のバージョン」を既に示していればそれを優先してよい

2. リリース済みバージョン一覧（tags）

出典: flutter/flutter

# 一覧
gh api repos/flutter/flutter/tags --paginate --jq '.[].name'

# 例: 3.x に絞る
gh api repos/flutter/flutter/tags --paginate --jq '.[].name' | rg '^3\.'

tag 名がリリース済みバージョンの一次情報である
必要に応じて rg でメジャー／プレフィックスを絞る
最新候補を提示するときは、プレリリース風の tag と Stable 向けの差分に注意する（ユーザーのチャネル要求を優先）

3. 変更サマリ（CHANGELOG）

CHANGELOG.md を master から取得する
- Stable の直近リリース済み情報は、通常これで足りる
- 各バージョンのブランチを個別に取る必要はない（特別な要求が無い限り）

gh api repos/flutter/flutter/contents/CHANGELOG.md?ref=master \
  --jq '.content' | base64 --decode

現在バージョンから対象バージョンまでの見出しを抜き出す
報告本文は次節のテンプレートに従い、要約で削らず翻訳して伝える

4. 報告の型

報告は assets/report.md をテンプレートとして埋めて出力する。

テンプレートを読む（またはコピーする）
{major}.{minor}.{patch} を実バージョンに置き換える
- 最新バージョン: 調査で選んだ候補（例: 指定メジャー内の最新 / Stable 最新）
- ローカルバージョン: flutter --version（またはユーザー提示値）
## CHANGELOG 以下に、ローカル版の次から最新版までを 1 バージョンずつ ### 見出しで並べる
各バージョンの本文は CHANGELOG の内容を省略せず、必要なら日本語へ翻訳する（意訳で削らない。翻訳のみ）
プレースホルダの空 ### や HTML コメントは、埋めたあと残さない

Read the full file on GitHub · 113 lines

Files

What ships with it

1 file 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.

assets/report.md 742 B

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.

2mo ago First seen · 113 lines · 158 tokens per session scan A 6c43d7160372

Subscribe to this mod's changes

flutter-maintenance-check-latest-version is a skill published in the GitHub repository eaglesakura/agent-skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 158 tokens to every session and 1,512 once invoked, about $0.0006 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.

Mobile Research

flutter-maintenance-check-latest-version next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
flutter-maintenance-check-latest-versioneaglesakura/agent-skills	Skill	2	1mo ago	MIT	A	158	Claude Code, Codex
orca-emulator-androidstablyai/orca	Skill	118k	today	MIT	A	102	Claude Code, Codex
glance-canonical-layoutsandroid/skills	Skill	10k	2d ago	Apache-2.0	A	56	Claude Code
android-tombstone-symbolicationdotnet/skills	Skill	5.8k	today	MIT	A	176	Claude Code
dogfoodcallstack/agent-device	Skill	5.3k	today	MIT	A	55	Claude Code
winapp-mauimicrosoft/winappCli	Skill	1.4k	today	MIT	A	68	Claude Code
app_remixrome-os/rome	Skill	894	today	MIT	A	50	Claude Code, Codex