let-fate-decide agent skill by trailofbits

At a glance

Before you install

Read from the skill's files at the directory's October 22, 2026 snapshot: what ships with it, what its code reads, and the terms it is published under.

• Bundled scripts: 2 script files (2 Python). Your agent may run them, so read them first.
• Tool permissions requested: Bash Read Grep Glob (the allowed-tools field of SKILL.md).
• License: CC-BY-SA-4.0, an open-source or open-content license.

Install let-fate-decide

The skills CLI works with Claude Code, Codex, Cursor and other agents; the other routes copy the folder by hand.

npx skills add https://github.com/trailofbits/skills/tree/main/plugins/let-fate-decide/skills/let-fate-decide

tmp="$(mktemp -d)"
git clone --depth 1 https://github.com/trailofbits/skills.git "$tmp/repo"
mkdir -p .claude/skills
cp -R "$tmp/repo/"plugins/let-fate-decide/skills/let-fate-decide .claude/skills/
rm -rf "$tmp"

tmp="$(mktemp -d)"
git clone --depth 1 https://github.com/trailofbits/skills.git "$tmp/repo"
mkdir -p .agents/skills
cp -R "$tmp/repo/"plugins/let-fate-decide/skills/let-fate-decide .agents/skills/
rm -rf "$tmp"

For a user-level install, copy the folder to ~/.claude/skills/ (Claude Code) or ~/.agents/skills/ (Codex). Inside Codex, $skill-installer can also fetch a skill from GitHub. New to skills? Read How to install agent skills in Claude Code, Codex and Cursor.

trailofbits/skills is third-party code. Read SKILL.md and any bundled scripts before you install it.

How the author describes it

Draws the 12 Houses of the Zodiac Tarot spread to inject entropy into planning when prompts are vague, ambiguous, or casually delegated. Interprets the spread to guide next steps. Use when the user says 'let fate decide', 'YOLO', 'whatever', 'idk', or other nonchalant phrases, makes Yu-Gi-Oh references, or when you are about to arbitrarily pick between multiple reasonable approaches. Prefer over asking clarifying questions when the user's tone is casual or playful rather than precision-seeking.

From the description field of SKILL.md. Agents read this line to decide when to load the skill.

Sections in SKILL.md

• Quick Start
• When to Use
• When NOT to Use
• Security and Correctness Use
• How It Works
• The Draw
• The Spread
• Reference Files
• Interpretation
• Example Session (House-Level Fragment)
• Error Handling
• Rationalizations to Reject

Files in the skill folder

• SKILL.md
• agents/openai.yaml
• assets/trail-of-bits-mark.svg
• cards/cups/ace-of-cups.md
• cards/cups/eight-of-cups.md
• cards/cups/five-of-cups.md
• cards/cups/four-of-cups.md
• cards/cups/king-of-cups.md
• cards/cups/knight-of-cups.md
• cards/cups/nine-of-cups.md
• cards/cups/page-of-cups.md
• cards/cups/queen-of-cups.md
• cards/cups/seven-of-cups.md
• cards/cups/six-of-cups.md
• cards/cups/ten-of-cups.md
• cards/cups/three-of-cups.md
• cards/cups/two-of-cups.md
• cards/major/00-the-fool.md
• cards/major/01-the-magician.md
• cards/major/02-the-high-priestess.md
• cards/major/03-the-empress.md
• cards/major/04-the-emperor.md
• cards/major/05-the-hierophant.md
• cards/major/06-the-lovers.md

Showing 24 of 98 files. Browse the folder on GitHub.

Suede Skill Check: 94/100 · A

let-fate-decide passes the required frontmatter check and all seven graded checks, which cover the SKILL.md format, a declared license and a commit in the last year. Those checks earn 56 of the score’s points; the rest come from description quality, instruction depth, bundled files, maintenance and curated-list citations. How the score works.

Where this skill is cited

trailofbits/skills appears in 4 curated lists: BehiSecc/awesome-claude-skills, heilcheng/awesome-agent-skills, hesreallyhim/awesome-claude-code, travisvn/awesome-claude-skills.

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