raffle-winner-picker

# Raffle Winner Picker

This skill randomly selects winners from lists, spreadsheets, or Google Sheets for giveaways and contests.

## When to Use This Skill

- Running social media giveaways
- Picking raffle winners at events
- Randomly selecting participants for surveys or tests
- Choosing winners from contest submissions
- Fair distribution of limited spots or resources
- Random team assignments

## What This Skill Does

1. **Random Selection**: Uses cryptographically random selection
2. **Multiple Sources**: Works with CSV, Excel, Google Sheets, or plain lists
3. **Multiple Winners**: Can pick one or multiple winners
4. **Duplicate Prevention**: Ensures the same person can't win twice
5. **Transparent Results**: Shows the selection process clearly
6. **Winner Details**: Displays all relevant information about winners

## How to Use

### From Google Sheets

```
Pick a random row from this Google Sheet to select a winner 
for a giveaway: [Sheet URL]
```

### From Local File

```
Pick 3 random winners from entries.csv
```

### From List

```
Pick a random winner from this list:
- Alice (alice@email.com)
- Bob (bob@email.com)
- Carol (carol@email.com)
...
```

### Multiple Winners

```
Pick 5 random winners from contest-entries.xlsx, 
make sure no duplicates
```

## Example

**User**: "Pick a random row from this Google Sheet to select a winner for a giveaway."

**Output**:
```
Accessing Google Sheet...
Total entries found: 247

Randomly selecting winner...

🎉 WINNER SELECTED! 🎉

Row #142
Name: Sarah Johnson
Email: sarah.j@email.com
Entry Date: March 10, 2024
Comment: "Love your newsletter!"

Selection method: Cryptographically random
Timestamp: 2024-03-15 14:32:18 UTC

Would you like to:
- Pick another winner (excluding Sarah)?
- Export winner details?
- Pick runner-ups?
```

**Inspired by:** Lenny's use case - picking a Sora 2 giveaway winner from his subscriber Slack community

## Features

### Fair Selection
- Uses secure random number generation
- No bias or patterns
- Transparent process
- Repeatable with seed (for verification)

### Exclusions
```
Pick a random winner excluding previous winners: 
Alice, Bob, Carol
```

### Weighted Selection
```
Pick a winner with weighted probability based on 
the "entries" column (1 entry = 1 ticket)
```

### Runner-ups
```
Pick 1 winner and 3 runner-ups from the list
```

## Example Workflows

### Social Media Giveaway
1. Export entries from Google Form to Sheets
2. "Pick a random winner from [Sheet URL]"
3. Verify winner details
4. Announce publicly with timestamp

### Event Raffle
1. Create CSV of attendee names and emails
2. "Pick 10 random winners from attendees.csv"
3. Export winner list
4. Email winners directly

### Team Assignment
1. Have list of participants
2. "Randomly split this list into 4 equal teams"
3. Review assignments
4. Share team rosters

## Tips

- **Document the process**: Save the timestamp and method
- **Public announcement**: Share selection details for transparency
- **Check eligibility**: Verify winner meets contest rules
- **Have backups**: Pick runner-ups in case winner is ineligible
- **Export results**: Save winner list for records

## Privacy & Fairness

✓ Uses cryptographically secure randomness
✓ No manipulation possible
✓ Timestamp recorded for verification
✓ Can provide seed for third-party verification
✓ Respects data privacy

## Common Use Cases

- Newsletter subscriber giveaways
- Product launch raffles
- Conference ticket drawings
- Beta tester selection
- Focus group participant selection
- Random prize distribution at events

{
  "format": "aiskill/v1",
  "skill": {
    "name": "raffle-winner-picker",
    "slug": "raffle-winner-picker",
    "version": "1.0.0",
    "description": "Picks random winners from lists, spreadsheets, or Google Sheets for giveaways, raffles, and contests. Ensures fair, unbiased selection with transparency.",
    "category": "Productivity",
    "tags": [
      "productivity",
      "documents"
    ],
    "platforms": [
      "chatgpt",
      "claude-code",
      "cursor"
    ],
    "tested_environment": "Agent Skills convention (SKILL.md) — works with Claude Code, Cursor, ChatGPT/Codex and compatible agents",
    "license": "APACHE-2.0"
  },
  "prompts": {
    "system": "# Raffle Winner Picker\r\n\r\nThis skill randomly selects winners from lists, spreadsheets, or Google Sheets for giveaways and contests.\r\n\r\n## When to Use This Skill\r\n\r\n- Running social media giveaways\r\n- Picking raffle winners at events\r\n- Randomly selecting participants for surveys or tests\r\n- Choosing winners from contest submissions\r\n- Fair distribution of limited spots or resources\r\n- Random team assignments\r\n\r\n## What This Skill Does\r\n\r\n1. **Random Selection**: Uses cryptographically random selection\r\n2. **Multiple Sources**: Works with CSV, Excel, Google Sheets, or plain lists\r\n3. **Multiple Winners**: Can pick one or multiple winners\r\n4. **Duplicate Prevention**: Ensures the same person can't win twice\r\n5. **Transparent Results**: Shows the selection process clearly\r\n6. **Winner Details**: Displays all relevant information about winners\r\n\r\n## How to Use\r\n\r\n### From Google Sheets\r\n\r\n```\r\nPick a random row from this Google Sheet to select a winner \r\nfor a giveaway: [Sheet URL]\r\n```\r\n\r\n### From Local File\r\n\r\n```\r\nPick 3 random winners from entries.csv\r\n```\r\n\r\n### From List\r\n\r\n```\r\nPick a random winner from this list:\r\n- Alice (alice@email.com)\r\n- Bob (bob@email.com)\r\n- Carol (carol@email.com)\r\n...\r\n```\r\n\r\n### Multiple Winners\r\n\r\n```\r\nPick 5 random winners from contest-entries.xlsx, \r\nmake sure no duplicates\r\n```\r\n\r\n## Example\r\n\r\n**User**: \"Pick a random row from this Google Sheet to select a winner for a giveaway.\"\r\n\r\n**Output**:\r\n```\r\nAccessing Google Sheet...\r\nTotal entries found: 247\r\n\r\nRandomly selecting winner...\r\n\r\n🎉 WINNER SELECTED! 🎉\r\n\r\nRow #142\r\nName: Sarah Johnson\r\nEmail: sarah.j@email.com\r\nEntry Date: March 10, 2024\r\nComment: \"Love your newsletter!\"\r\n\r\nSelection method: Cryptographically random\r\nTimestamp: 2024-03-15 14:32:18 UTC\r\n\r\nWould you like to:\r\n- Pick another winner (excluding Sarah)?\r\n- Export winner details?\r\n- Pick runner-ups?\r\n```\r\n\r\n**Inspired by:** Lenny's use case - picking a Sora 2 giveaway winner from his subscriber Slack community\r\n\r\n## Features\r\n\r\n### Fair Selection\r\n- Uses secure random number generation\r\n- No bias or patterns\r\n- Transparent process\r\n- Repeatable with seed (for verification)\r\n\r\n### Exclusions\r\n```\r\nPick a random winner excluding previous winners: \r\nAlice, Bob, Carol\r\n```\r\n\r\n### Weighted Selection\r\n```\r\nPick a winner with weighted probability based on \r\nthe \"entries\" column (1 entry = 1 ticket)\r\n```\r\n\r\n### Runner-ups\r\n```\r\nPick 1 winner and 3 runner-ups from the list\r\n```\r\n\r\n## Example Workflows\r\n\r\n### Social Media Giveaway\r\n1. Export entries from Google Form to Sheets\r\n2. \"Pick a random winner from [Sheet URL]\"\r\n3. Verify winner details\r\n4. Announce publicly with timestamp\r\n\r\n### Event Raffle\r\n1. Create CSV of attendee names and emails\r\n2. \"Pick 10 random winners from attendees.csv\"\r\n3. Export winner list\r\n4. Email winners directly\r\n\r\n### Team Assignment\r\n1. Have list of participants\r\n2. \"Randomly split this list into 4 equal teams\"\r\n3. Review assignments\r\n4. Share team rosters\r\n\r\n## Tips\r\n\r\n- **Document the process**: Save the timestamp and method\r\n- **Public announcement**: Share selection details for transparency\r\n- **Check eligibility**: Verify winner meets contest rules\r\n- **Have backups**: Pick runner-ups in case winner is ineligible\r\n- **Export results**: Save winner list for records\r\n\r\n## Privacy & Fairness\r\n\r\n✓ Uses cryptographically secure randomness\r\n✓ No manipulation possible\r\n✓ Timestamp recorded for verification\r\n✓ Can provide seed for third-party verification\r\n✓ Respects data privacy\r\n\r\n## Common Use Cases\r\n\r\n- Newsletter subscriber giveaways\r\n- Product launch raffles\r\n- Conference ticket drawings\r\n- Beta tester selection\r\n- Focus group participant selection\r\n- Random prize distribution at events",
    "user_template": ""
  },
  "variables": [],
  "install": {
    "steps": [
      {
        "title": "Download & unzip",
        "detail": "Download the .zip package from SkillVault and unzip it. The raffle-winner-picker/ folder contains SKILL.md plus any companion scripts, references and assets."
      },
      {
        "title": "Copy into your agent skills directory",
        "detail": "Move the folder into your agent's skills directory — e.g. ~/.claude/skills/ (Claude Code), .codex/skills/, .cursor/skills/ or your project's .claude/skills/ folder — then restart or reload the session."
      },
      {
        "title": "Use it",
        "detail": "Describe the task in natural language; the agent loads the skill automatically when the request matches the skill description."
      }
    ]
  },
  "usage": {
    "steps": []
  },
  "metadata": {
    "author": "SkillVault",
    "source": "https://skillvault.top/skills/raffle-winner-picker",
    "exported_at": "2026-11-03T07:44:59.999Z"
  }
}

format: aiskill/v1
skill:
  name: raffle-winner-picker
  slug: raffle-winner-picker
  version: 1.0.0
  description: >-
    Picks random winners from lists, spreadsheets, or Google Sheets for giveaways, raffles, and
    contests. Ensures fair, unbiased selection with transparency.
  category: Productivity
  tags:
    - productivity
    - documents
  platforms:
    - chatgpt
    - claude-code
    - cursor
  tested_environment: >-
    Agent Skills convention (SKILL.md) — works with Claude Code, Cursor, ChatGPT/Codex and
    compatible agents
  license: APACHE-2.0
prompts:
  system: "# Raffle Winner Picker\r\n\r\nThis skill randomly selects winners from lists, spreadsheets, or Google Sheets for giveaways and contests.\r\n\r\n## When to Use This Skill\r\n\r\n- Running social media giveaways\r\n- Picking raffle winners at events\r\n- Randomly selecting participants for surveys or tests\r\n- Choosing winners from contest submissions\r\n- Fair distribution of limited spots or resources\r\n- Random team assignments\r\n\r\n## What This Skill Does\r\n\r\n1. **Random Selection**: Uses cryptographically random selection\r\n2. **Multiple Sources**: Works with CSV, Excel, Google Sheets, or plain lists\r\n3. **Multiple Winners**: Can pick one or multiple winners\r\n4. **Duplicate Prevention**: Ensures the same person can't win twice\r\n5. **Transparent Results**: Shows the selection process clearly\r\n6. **Winner Details**: Displays all relevant information about winners\r\n\r\n## How to Use\r\n\r\n### From Google Sheets\r\n\r\n```\r\nPick a random row from this Google Sheet to select a winner \r\nfor a giveaway: [Sheet URL]\r\n```\r\n\r\n### From Local File\r\n\r\n```\r\nPick 3 random winners from entries.csv\r\n```\r\n\r\n### From List\r\n\r\n```\r\nPick a random winner from this list:\r\n- Alice (alice@email.com)\r\n- Bob (bob@email.com)\r\n- Carol (carol@email.com)\r\n...\r\n```\r\n\r\n### Multiple Winners\r\n\r\n```\r\nPick 5 random winners from contest-entries.xlsx, \r\nmake sure no duplicates\r\n```\r\n\r\n## Example\r\n\r\n**User**: \"Pick a random row from this Google Sheet to select a winner for a giveaway.\"\r\n\r\n**Output**:\r\n```\r\nAccessing Google Sheet...\r\nTotal entries found: 247\r\n\r\nRandomly selecting winner...\r\n\r\n🎉 WINNER SELECTED! 🎉\r\n\r\nRow #142\r\nName: Sarah Johnson\r\nEmail: sarah.j@email.com\r\nEntry Date: March 10, 2024\r\nComment: \"Love your newsletter!\"\r\n\r\nSelection method: Cryptographically random\r\nTimestamp: 2024-03-15 14:32:18 UTC\r\n\r\nWould you like to:\r\n- Pick another winner (excluding Sarah)?\r\n- Export winner details?\r\n- Pick runner-ups?\r\n```\r\n\r\n**Inspired by:** Lenny's use case - picking a Sora 2 giveaway winner from his subscriber Slack community\r\n\r\n## Features\r\n\r\n### Fair Selection\r\n- Uses secure random number generation\r\n- No bias or patterns\r\n- Transparent process\r\n- Repeatable with seed (for verification)\r\n\r\n### Exclusions\r\n```\r\nPick a random winner excluding previous winners: \r\nAlice, Bob, Carol\r\n```\r\n\r\n### Weighted Selection\r\n```\r\nPick a winner with weighted probability based on \r\nthe \"entries\" column (1 entry = 1 ticket)\r\n```\r\n\r\n### Runner-ups\r\n```\r\nPick 1 winner and 3 runner-ups from the list\r\n```\r\n\r\n## Example Workflows\r\n\r\n### Social Media Giveaway\r\n1. Export entries from Google Form to Sheets\r\n2. \"Pick a random winner from [Sheet URL]\"\r\n3. Verify winner details\r\n4. Announce publicly with timestamp\r\n\r\n### Event Raffle\r\n1. Create CSV of attendee names and emails\r\n2. \"Pick 10 random winners from attendees.csv\"\r\n3. Export winner list\r\n4. Email winners directly\r\n\r\n### Team Assignment\r\n1. Have list of participants\r\n2. \"Randomly split this list into 4 equal teams\"\r\n3. Review assignments\r\n4. Share team rosters\r\n\r\n## Tips\r\n\r\n- **Document the process**: Save the timestamp and method\r\n- **Public announcement**: Share selection details for transparency\r\n- **Check eligibility**: Verify winner meets contest rules\r\n- **Have backups**: Pick runner-ups in case winner is ineligible\r\n- **Export results**: Save winner list for records\r\n\r\n## Privacy & Fairness\r\n\r\n✓ Uses cryptographically secure randomness\r\n✓ No manipulation possible\r\n✓ Timestamp recorded for verification\r\n✓ Can provide seed for third-party verification\r\n✓ Respects data privacy\r\n\r\n## Common Use Cases\r\n\r\n- Newsletter subscriber giveaways\r\n- Product launch raffles\r\n- Conference ticket drawings\r\n- Beta tester selection\r\n- Focus group participant selection\r\n- Random prize distribution at events"
  user_template: ""
variables: []
install:
  steps:
    - title: Download & unzip
      detail: >-
        Download the .zip package from SkillVault and unzip it. The raffle-winner-picker/ folder
        contains SKILL.md plus any companion scripts, references and assets.
    - title: Copy into your agent skills directory
      detail: >-
        Move the folder into your agent's skills directory — e.g. ~/.claude/skills/ (Claude Code),
        .codex/skills/, .cursor/skills/ or your project's .claude/skills/ folder — then restart or
        reload the session.
    - title: Use it
      detail: >-
        Describe the task in natural language; the agent loads the skill automatically when the
        request matches the skill description.
usage:
  steps: []
metadata:
  author: SkillVault
  source: https://skillvault.top/skills/raffle-winner-picker
  exported_at: "2026-11-03T07:44:59.999Z"