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

100 / 100 · Low risk

Fine to try.

By ECNU-ICALK/AutoSkill (GitHub) · coding · 613 stars · scanned at commit 94c47ca

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.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'python-script-to-enumerate-and-count-luhn-valid-credit-card-numb' ] || [ -L ~/.agents/skills/'python-script-to-enumerate-and-count-luhn-valid-credit-card-numb' ]; then echo 'A skill folder named python-script-to-enumerate-and-count-luhn-valid-credit-card-numb already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/ECNU-ICALK/AutoSkill' "$d" && git -C "$d" checkout --quiet '94c47ca488d4ba4117d20272e66d49b9877e68cf' -- 'SkillBank/ConvSkill/english_gpt3.5_8/python-script-to-enumerate-and-count-luhn-valid-credit-card-numb' && mkdir -p ~/.agents/skills && cp -R "$d"/'SkillBank/ConvSkill/english_gpt3.5_8/python-script-to-enumerate-and-count-luhn-valid-credit-card-numb' ~/.agents/skills/'python-script-to-enumerate-and-count-luhn-valid-credit-card-numb' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'python-script-to-enumerate-and-count-luhn-valid-credit-card-numb' ~/.claude/skills/'python-script-to-enumerate-and-count-luhn-valid-credit-card-numb' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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