Card identity

Skill jiahongc/credit-card-skills/.claude/skills/card-identity

Agent Skills suite for researching US credit cards — works with Claude Code, Codex, Cursor, Gemini CLI, and any Agent Skills-compatible tool

Install

npx -y skills add jiahongc/credit-card-skills --skill card-identity

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What its author says it does

Copied from the file, not written here

Resolve a card name to an exact issuer, family, and variant. This is a hidden shared skill used internally by all card commands as their first step. Not user-facing.

SKILL.md

4.9 KB, ~1.1k tokens by cl100k_base, as published. Nobody here has run it

Card Identity

Purpose

Centralized card-name resolution used by all commands in the card suite. Every user-facing command should call this logic as step 1 before doing any research.

Resolution Steps

Normalize input — strip extra whitespace, fix common abbreviations (e.g., "CSP" → "Chase Sapphire Preferred", "Amex" → "American Express").
Parse components — extract issuer, card family, and card variant separately when possible.
Check issuer scope — verify the issuer is in the approved list from ../card-shared/source-policy.yaml. If not, return a short failure: "This card is not from a supported issuer."
Resolve variant — if the input maps to exactly one variant, proceed with confident match. If multiple variants are plausible, follow the ambiguity rules below.

Business vs Personal

Both personal and business credit cards are supported.
If the user specifies "business" or "biz", resolve to the business variant.
If a card name exists in both personal and business versions and the user doesn't specify, treat it as ambiguous — return a numbered choice list with both variants.
Common business indicators: "business", "biz", "Business Platinum", "Ink", "Spark", etc.

Ambiguity Handling

If the input maps to 2+ plausible variants (e.g., "Chase Sapphire" → Preferred or Reserve, or "Amex Gold" → personal or business):
- Return a numbered choice list and stop. Do not guess.
- Format: one card per line with issuer, family, variant.
If no plausible match exists:
- Return a short failure: "Could not match a card. Try including the full card name with issuer."

Confident Match Output

When the match is confident, the calling command should:

Omit the ## Card Identity section from user-facing output.
Populate the card identity YAML keys (card_name, issuer, network, card_family, card_variant) in the internal YAML block.

Weak / Unconfirmed Match Output

When the match is the best-supported variant but not certain:

Show the ## ⚠️ Card Identity section in user-facing output with the matched variant and a note about competing matches.
Set status: unconfirmed on the relevant summary field.
List competing variants in confidence_notes.

Common Abbreviations

Only shorthands and ambiguous names need entries here. Cards with full, unambiguous names (e.g., "Chase Marriott Bonvoy Boundless", "Chase United Explorer", "American Express Hilton Honors Aspire") are resolved via search — no table entry needed.

Input	Resolved
CSP	Chase Sapphire Preferred
CSR	Chase Sapphire Reserve
CFU	Chase Freedom Unlimited
CFF	Chase Freedom Flex
CIP	Chase Ink Business Preferred
CIC	Chase Ink Business Cash
CIU	Chase Ink Business Unlimited
Amex Gold	American Express Gold Card
Amex Plat	American Express Platinum Card
Amex Biz Gold	American Express Business Gold Card
Amex Biz Plat	American Express Business Platinum Card
Amex Blue Biz Plus	American Express Blue Business Plus Card
Amex Blue Biz Cash	American Express Blue Business Cash Card
Venture X	Capital One Venture X Rewards Credit Card
Venture X Business	Capital One Venture X Business Card
Savor	Capital One SavorOne / Savor (ambiguous — ask)
Spark Cash Plus	Capital One Spark Cash Plus
Spark Miles	Capital One Spark Miles
Double Cash	Citi Double Cash Card
Custom Cash	Citi Custom Cash Card
Ink Preferred	Chase Ink Business Preferred
Ink Cash	Chase Ink Business Cash
Ink Unlimited	Chase Ink Business Unlimited
Bilt	Bilt Blue / Obsidian / Palladium (ambiguous — ask)
Robinhood	Robinhood Gold Card / Cash Card (ambiguous — ask)
Aviator Red	Barclays AAdvantage Aviator Red World Elite Mastercard
Wyndham Rewards	Barclays Wyndham Rewards Earner Card / Plus / Business (ambiguous — ask)
Altitude Reserve	U.S. Bank Altitude Reserve Visa Infinite Card
Altitude Connect	U.S. Bank Altitude Connect Visa Signature Card
Altitude Go	U.S. Bank Altitude Go Visa Signature Card
Delta Gold	American Express Delta SkyMiles Gold Card
Delta Platinum	American Express Delta SkyMiles Platinum Card
Delta Reserve	American Express Delta SkyMiles Reserve Card
Delta Biz Gold	American Express Delta SkyMiles Gold Business Card
Delta Biz Plat	American Express Delta SkyMiles Platinum Business Card
Delta Biz Reserve	American Express Delta SkyMiles Reserve Business Card

Rules Reference

Full rules at ../card-shared/card-identity-rules.md.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.