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 agentmods add skills/jujunjun110/product-starter/add-api-integrationnpx skills add jujunjun110/product-starter --skill add-api-integrationgit clone --depth 1 https://github.com/jujunjun110/product-starterWrote 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/jujunjun110/product-starter/add-api-integration)<a href="https://agentmods.dev/skills/jujunjun110/product-starter/add-api-integration"><img src="https://agentmods.dev/badge/skills/jujunjun110/product-starter/add-api-integration.svg" alt="Measured on agentmods" 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 | $0.00024 | $0.00426 |
| Opus 5 | $0.00012 | $0.00213 |
| Sonnet 5 | $0.00005 | $0.00085 |
| Haiku 4.5 | $0.00002 | $0.00043 |
Grade A, and why
add-api-integration 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 today.
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
外部API連携追加スキル
ユーザーが「〇〇APIと連携して」「〇〇サービスを使いたい」と指示したときに適用する。
生成するファイル（3ファイルセット）
-
Gateway Interface (
src/backend/domain/gateways/{name}.gateway.ts)- 汎用メソッドで構成
- ドメイン固有のメソッド名ではなく、操作を抽象化した名前にする
-
本番実装 (
src/backend/infrastructure/adapters/{provider}-{name}.adapter.ts)- 外部 API SDK を使用した実装
- API呼び出し・リトライ・タイムアウトを担当
-
Stub 実装 (
src/backend/infrastructure/adapters/stub-{name}.adapter.ts)- テスト可能な固定値を返す
- コンストラクタでレスポンスをカスタマイズ可能にする
-
Composition の更新 (
src/backend/presentation/composition/{name}.composition.ts)- 環境変数で本番/Stub を切り替え
const apiKey = process.env.{SERVICE}_API_KEY; const gateway = apiKey ? new RealGateway(apiKey) : new StubGateway();
ルール
- Gateway interface は domain 層に配置（外部依存なし）
- 実装は infrastructure/adapters に配置
- プロンプト生成・レスポンスパースは application 層（UseCase）の責務
- 必要な環境変数は
.env.localに追加（Git にコミットしない） - 必要なパッケージは
pnpm --filter webapp add {package}でインストール
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.
- today First seen · 37 lines · 24 tokens per session scan A 795b236aacb6
add-api-integration is a skill published in the GitHub repository jujunjun110/product-starter (17 stars, last pushed 2mo ago), licensed MIT. It adds 24 tokens to every session and 426 once invoked, about $0.0001 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 2026-09-03.
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