Let Fate Decide
Description
A Claude Code skill that draws Tarot cards using `os.urandom()` to inject entropy into vague or underspecified planning decisions.
Installation
Installs to ~/.claude/skills/let-fate-decide/
git clone --depth 1 https://github.com/trailofbits/skills /tmp/skills \
&& mkdir -p ~/.claude/skills \
&& cp -r /tmp/skills/plugins/let-fate-decide ~/.claude/skills/let-fate-decide Clones the whole repository, because a skill folder can carry scripts and resources beside its SKILL.md.
Repository README
This is the README for trailofbits/skills, shared by 13 entries
in this directory. It describes the repository, not this entry specifically.
let-fate-decide
A Claude Code skill that draws Tarot cards using `os.urandom()` to inject entropy into vague or underspecified planning decisions.
What It Does
When a prompt is sufficiently ambiguous, or the user explicitly invokes fate, this skill shuffles a full 78-card Tarot deck using cryptographic randomness and draws 4 cards (which may appear reversed). Claude then interprets the spread and uses the reading to inform its approach.
Triggers
- Vague or underspecified prompts where multiple approaches are equally valid
- "I'm feeling lucky"
- "Let fate decide"
- Nonchalant delegation ("whatever you think", "surprise me", "dealer's choice")
- Yu-Gi-Oh references ("heart of the cards", "I believe in the heart of the cards")
- "Try again" on a system with no actual changes (redraw)
How It Works
- A Python script uses
os.urandom()to perform a Fisher-Yates shuffle - 4 cards are drawn from the top of the shuffled deck
- Each card has an independent 50% chance of being reversed
- Claude reads the drawn cards' meaning files and interprets the spread
- The interpretation informs the planning direction
Card Organization
Each of the 78 Tarot cards has its own markdown file:
cards/major/- 22 Major Arcana (The Fool through The World)cards/wands/- 14 Wands (Ace through King)cards/cups/- 14 Cups (Ace through King)cards/swords/- 14 Swords (Ace through King)cards/pentacles/- 14 Pentacles (Ace through King)
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