let-fate-decide
在决策不明确时,通过运行抽牌脚本,获取JSON格式的抽牌结果以辅助决策。
npx skills add trailofbits/skills --skill let-fate-decideBefore / After 效果对比
1 组当团队在关键决策上陷入僵局,或者面对不确定性时,往往会陷入长时间的讨论、分析,甚至出现“分析瘫痪”的情况。这不仅耗费时间,还可能错过最佳决策时机。
“命运之牌”技能提供了一种结构化的、非传统的方式来打破决策僵局。通过抽取和解读卡牌,团队可以获得新的视角、激发创意,并以更轻松的方式做出决策,避免过度分析,加速决策过程。
let-fate-decide
Let Fate Decide
When the path forward is unclear, let the cards speak.
Quick Start
Run the drawing script:
uv run {baseDir}/scripts/draw_cards.py
The script outputs JSON with 4 drawn cards, each with a file path relative to {baseDir}/
Read each card's meaning file to understand the draw
Interpret the spread using the guide at {baseDir}/references/INTERPRETATION_GUIDE.md
Apply the interpretation to the task at hand
When to Use
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Vague prompts: The user's request is ambiguous and multiple valid approaches exist
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Explicit invocations: "I'm feeling lucky", "let fate decide", "dealer's choice", "surprise me", "whatever you think"
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Yu-Gi-Oh energy: "Heart of the cards", "I believe in the heart of the cards", "you've activated my trap card", "it's time to duel"
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Nonchalant delegation: The user expresses indifference about the approach
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Redraw requests: "Try again" or "draw again" when no actual system changes occurred (this means draw new cards, not re-run the same approach)
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Tie-breaking: When you genuinely cannot decide between equally valid approaches
When NOT to Use
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The user has given clear, specific instructions
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The task has a single obvious correct approach
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Safety-critical decisions (security, data integrity, production deployments)
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The user explicitly asks you NOT to use Tarot
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A more specific skill (like
ask-questions-if-underspecified) would better serve the user by gathering actual requirements
How It Works
The Draw
The script uses os.urandom() for cryptographic randomness:
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Builds a standard 78-card Tarot deck (22 Major Arcana + 56 Minor Arcana)
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Performs a Fisher-Yates shuffle using rejection sampling (no modulo bias)
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Draws 4 cards from the top
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Each card independently has a 50% chance of being reversed
The Spread
The 4 card positions represent:
Position Represents Question It Answers
1 The Context What is the situation really about?
2 The Challenge What obstacle or tension exists?
3 The Guidance What approach should be taken?
4 The Outcome Where does this path lead?
Card Files
Each card's meaning is in its own markdown file under {baseDir}/cards/:
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cards/major/- 22 Major Arcana (archetypal forces) -
cards/wands/- 14 Wands (creativity, action, will) -
cards/cups/- 14 Cups (emotion, intuition, relationships) -
cards/swords/- 14 Swords (intellect, conflict, truth) -
cards/pentacles/- 14 Pentacles (material, practical, craft)
Interpretation
After drawing, read each card's file and synthesize meaning. See {baseDir}/references/INTERPRETATION_GUIDE.md for the full interpretation workflow.
Key rules:
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Reversed cards invert or complicate the upright meaning
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Major Arcana cards carry more weight than Minor Arcana
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The spread tells a story across all 4 positions; don't interpret cards in isolation
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Map abstract meanings to concrete technical decisions
Example Session
User: "I dunno, just make it work somehow"
[Draw cards]
1. The Magician (upright) - Context: All tools are available
2. Five of Swords (reversed) - Challenge: Let go of a combative approach
3. The Star (upright) - Guidance: Follow the aspirational path
4. Ten of Pentacles (upright) - Outcome: Long-term stability
Interpretation: The cards suggest you have everything you need (Magician).
The challenge is avoiding overengineering or adversarial thinking about edge
cases (Five of Swords reversed). Follow the clean, hopeful approach (Star)
and build for lasting maintainability (Ten of Pentacles).
Approach: Implement the simplest correct solution with clear structure,
prioritizing long-term readability over clever optimizations.
Error Handling
If the drawing script fails:
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Script crashes with traceback: Report the error to the user and skip the reading. Do not invent cards or simulate a draw — the whole point is real entropy.
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Card file not found: Note the missing file, interpret the card from its name and suit alone, and continue with the reading.
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Never fake entropy: If the script cannot run, do not simulate a draw using your own "randomness." Tell the user the draw failed.
Rationalizations to Reject
Rationalization Why Wrong
"The cards said to, so I must" Cards inform direction, they don't override safety or correctness
"This reading justifies my pre-existing preference" Be honest if the reading challenges your instinct
"The reversed card means do nothing" Reversed means a different angle, not inaction
"Major Arcana overrides user requirements" User requirements always take priority over card readings
"I'll keep drawing until I get what I want" One draw per decision point; accept the reading
Weekly Installs360Repositorytrailofbits/skillsGitHub Stars3.7KFirst SeenFeb 26, 2026Security AuditsGen Agent Trust HubPassSocketPassSnykPassInstalled oncodex323cursor321github-copilot321opencode321gemini-cli320amp319
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