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.
npx skills add eaglesakura/agent-skills --skill flutter-xcodegen-ios-google-sign-ingit clone --depth 1 https://github.com/eaglesakura/agent-skillsWrote 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.
[](https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-xcodegen-ios-google-sign-in)<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-xcodegen-ios-google-sign-in"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-xcodegen-ios-google-sign-in/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.
<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/flutter-xcodegen-ios-google-sign-in"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/flutter-xcodegen-ios-google-sign-in.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00126 | $0.00465 |
| Opus 5 | $0.00063 | $0.00233 |
| Sonnet 5 | $0.00025 | $0.00093 |
| Haiku 4.5 | $0.00013 | $0.00047 |
Grade A, and why
flutter-xcodegen-ios-google-sign-in 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 7d 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.
What it actually says
Flutter iOS / XcodeGen + Google Sign-In
Configuration ごとの OAuth クライアント値を xcconfig に置き、project.yml の Info.plist 生成で参照する。
必須入力
各 Configuration（または Flavor × BuildType）について:
GID_CLIENT_ID（例:123-abc.apps.googleusercontent.com）REVERSED_CLIENT_ID（例:com.googleusercontent.apps.123-abc）
無ければ推測せずエラーで止める。
作業手順
- 各
Configurations/<Configuration>/flavor.xcconfigに
assets/flavor.xcconfig.google-sign-in-fragment.xcconfig のキーを追加し実値を埋める project.ymlのtargets.Runner.info.propertiesに
assets/project.yml.google-sign-in-fragment.yml どおり追加するGIDClientID: $(GID_CLIENT_ID)CFBundleURLTypes→CFBundleURLSchemes: [$(REVERSED_CLIENT_ID)]
xcodegenを再実行する
関連
- 土台:
flutter-xcodegen-ios - Firebase 併用時:
flutter-xcodegen-ios-firebase（plist 配置は別問題）
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.
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.
- 7d ago First seen · 36 lines · 126 tokens per session scan A c739797fed10
flutter-xcodegen-ios-google-sign-in is a skill published in the GitHub repository eaglesakura/agent-skills (2 stars, last pushed 5d ago), licensed MIT. It adds 126 tokens to every session and 465 once invoked, about $0.0006 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 2026-09-04.
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