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Estimate first-year value for one major-US credit card given an optional spending breakdown. Returns welcome bonus + estimated earn + credits minus annual fee. Use when the user wants a quick value check.
デフォルトでは、最初にソースを確認する Prompt が選択されています。直接コマンドに切り替えるか、ローカルコピーをダウンロードすることもできます。
インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
SOC 職業分類に基づく
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
直接コマンドでは確認用 Prompt が省略されます。実行前にソースを確認してください。
npx skills add https://github.com/jiahongc/credit-card-skills --skill card-valueコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
ローカルで確認しますか？SkillsMP が現在取得できるファイルをダウンロードできます。
SKILL.md を表示中
Side-by-side comparison of two major-US credit cards across fees, earning rates, credits, transfer partners, and key benefits. Covers 11 major US issuers including co-branded hotel and airline cards.
Return statement credits and cash-like credits for one major-US credit card — amount, cadence, trigger rules, enrollment requirements, and restrictions. Covers 11 major US issuers including co-branded hotel and airline cards.
Return a compact full report for one major-US credit card — fees, welcome offer, earning rates, redemption, credits, travel benefits, protections, mechanics, eligibility, and strategy. Covers 11 major US issuers including co-branded hotel and airline cards.
| name | card-value |
| description | Estimate first-year value for one major-US credit card given an optional spending breakdown. Returns welcome bonus + estimated earn + credits minus annual fee. Use when the user wants a quick value check. |
| argument-hint | [card name] [optional spend breakdown] |
| disable-model-invocation | true |
| allowed-tools | Read, Bash(curl -sS *) |
Return a compact first-year value estimate for one exact card variant.
The user provides a card name followed by an optional spending breakdown:
/card-value Chase Sapphire Preferred — uses a reasonable default annual spend estimate/card-value Chase Sapphire Preferred $500/mo dining, $200/mo travel, $3000/mo other — uses the provided breakdownIf no breakdown is given, use a default moderate-spender profile ($500/mo dining, $200/mo travel, $100/mo streaming, $200/mo groceries, $2000/mo other).
Fetch the issuer page + up to 5 secondary sources for current SUB details. Prefer NerdWallet, The Points Guy, Bankrate, One Mile at a Time, and Doctor of Credit. Run searches in parallel.
search_method in ../card-shared/source-policy.yaml):
curl -sS "https://api.search.brave.com/res/v1/web/search?q=CARD+NAME+welcome+offer+annual+fee+value&count=10" -H "X-Subscription-Token: $BRAVE_API_KEY"
$BRAVE_API_KEY is not set, fall back to WebSearch.curl -sS -L "URL" | sed 's/<[^>]*>//g' | tr -s '\n' | head -200
first_year_value = welcome_bonus_value + annual_earn_value + total_credits - annual_fee.card-value contract in ../card-shared/command-contracts.yaml.## 💳 Spend Profile## 🎁 Welcome Bonus## 📈 Annual Earn## 🏷️ Credits — statement credits and complimentary subscriptions only; not enhanced earn rates or point multipliers## 💰 Net First-Year Value## 📋 Confidence Notes## 🔗 Sources — numbered list of URLs fetched, as markdown hyperlinks with short "Site - Topic" labels, e.g. [Chase - Sapphire Preferred](https://...)Omit ## Card Identity when the match is confident. The Net First-Year Value section should show the math clearly in one compact block.