raffle-winner-picker

Select random winners from CSV, Excel, or Google Sheets with duplicate prevention.

Updated Mar 7, 2026
One-click install
npx skills add https://github.com/huivrotiki/antigravity-code-workspace-copy --skill raffle-winner-picker-huivrotiki
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: raffle-winner-picker
Source: https://github.com/huivrotiki/antigravity-code-workspace-copy/tree/main/02-Skills/raffle-winner-picker
Command: npx skills add https://github.com/huivrotiki/antigravity-code-workspace-copy --skill raffle-winner-picker-huivrotiki

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automate the fair selection of winners from lists, spreadsheets, or Google Sheets for giveaways and contests, eliminating manual bias and errors.

Core Features & Use Cases

  • Cryptographically secure randomness ensures unbiased results
  • Multi-source inputs: CSV, Excel, Google Sheets, or plain lists
  • Single or multiple winners with optional runner-ups
  • Duplicate prevention prevents the same person from winning more than once
  • Transparent results with auditable selection logs and winner details

Quick Start

Pick 3 random winners from the attendees list.

Frequently Asked Questions about raffle-winner-picker

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I pick a random winner from a Google Sheets giveaway list?

To pick a random winner from a Google Sheets giveaway list, this Skill processes your spreadsheet directly using cryptographically secure randomness. It selects unbiased winners and generates an auditable selection log for transparent results.

What is the best way to run an unbiased raffle from a CSV file?

The best way to run an unbiased raffle from a CSV file is using cryptographically secure random selection. This Skill accepts CSV inputs, prevents duplicate winners, and outputs transparent winner details with an auditable log.

Can I select multiple winners and runner-ups from an Excel contest spreadsheet?

Yes, you can select multiple winners and runner-ups from an Excel contest spreadsheet. The Skill handles single or multiple winner selections with duplicate prevention, ensuring no participant wins more than once during the random draw.

How does a random winner picker ensure transparency for social media contests?

A random winner picker ensures transparency for social media contests by using cryptographically secure randomness and generating an auditable selection log. This eliminates manual bias and provides verifiable winner details for all participants.

Does this raffle winner picker work with inline lists for event giveaways?

Yes, this raffle winner picker works with inline lists for event giveaways. It supports multi-source inputs including CSV, Excel, Google Sheets, and plain lists, allowing flexible contest submissions and survey responses.

Are there limitations when using spreadsheet data for random selection?

When using spreadsheet data for random selection, you must ensure your list is properly formatted without duplicates. The Skill prevents the same person from winning multiple times, but requires clean input data from your CSV, Excel, or Google Sheets source.