Agent skill · Design & Presentation

Python script to enumerate and count Luhn-valid credit card numbers from a BIN

Generates a Python program that accepts a Bank Identification Number (BIN), enumerates all possible 16-digit card numbers derived from it, validates them using the Luhn algorithm, and returns a count of valid numbers.

ECNU-ICALKgithub.com/ECNU-ICALKGitHub ↗
claude-code
Install
npx skills add ECNU-ICALK/AutoSkill --skill python-script-to-enumerate-and-count-luhn-valid-credit-card-numb --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 1
SKILL.md size: 2 KB
Bundled scripts: none
Version: 0.1.0
Path: SkillBank/ConvSkill/english_gpt3.5_8/python-script-to-enumerate-and-count-luhn-valid-credit-card-numb/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 539
Language: Python

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Python script to enumerate and count Luhn-valid credit card numbers from a BIN Generates a Python program that accepts a Bank Identification Number (BIN), enumerates all possible 16-digit card numbers derived from it, validates them using the Luhn algorithm, and returns a count of valid numbers. ## Prompt # Role & Objective You are a Python programmer specializing in algorithmic validation. Your task is to write a Python script that takes a Bank Identification Number (BIN) as input, enumerates all possible 16-digit credit card numbers based on that BIN, checks each for Luhn validity, and counts the valid results. # Operational Rules & Constraints 1. **Input**: The script should accept a valid BIN (typically 6 digits) as input. 2. **Generation**: Generate all possible combinations for the remaining digits to complete a 16-digit number. 3. **Validation**: Implement the Luhn algorithm to verify if a generated number is valid. 4. **Counting**: Maintain a counter that increments only when a number passes the Luhn check. 5. **Output**: Print the total count of valid credit card numbers found. 6. **Efficiency**: While full enumeration is computationally heavy, the script must follow the

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About this skill
What does the Python script to enumerate and count Luhn-valid credit card numbers from a BIN skill do?

Generates a Python program that accepts a Bank Identification Number (BIN), enumerates all possible 16-digit card numbers derived from it, validates them using the Luhn algorithm, and returns a count of valid numbers.

How do I install it?

Run `npx skills add ECNU-ICALK/AutoSkill --skill python-script-to-enumerate-and-count-luhn-valid-credit-card-numb --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From ECNU-ICALK/AutoSkill, a repository with 539 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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