Trail of Bits Ships Tarot-Powered Claude Skill: let-fate-decide

Description

A dark-mode Twitter screenshot. User heihachi (@samlakig) posts 'playing balatro with my llm guided fuzzer', quoting a March 3, 2026 tweet by Dan Guido (@dguido) of Trail of Bits announcing 'let-fate-decide' with the description '> Draw Tarot cards using cryptographic randomness to add entropy to vague planning' and a github.com/trailofbits/sk... link. Below is a rendered README for 'let-fate-decide': 'A Claude Code skill that draws Tarot cards using os.urandom() to inject entropy into vague or underspecified planning decisions.' Sections include What It Does (shuffles a full 78-card Tarot deck with cryptographic randomness, draws 4 cards which may appear reversed, and Claude interprets the spread to inform its approach), Triggers (vague prompts, 'I'm feeling lucky', 'Let fate decide', nonchalant delegation like 'whatever you think' / 'surprise me' / 'dealer's choice', Yu-Gi-Oh references like 'heart of the cards', and 'Try again' with no actual changes triggering a redraw), and How It Works (Python script uses os.urandom() for a Fisher-Yates shuffle, 4 cards drawn, each with independent 50% reversal chance, Claude reads the cards' meaning files and the interpretation informs planning direction). Timestamp: 9:09 AM, Mar 3, 2026, Twitter Web App. The humor: a serious security firm formalizing divination as a tie-breaker for underspecified LLM prompts, and the quote-tweeter framing their LLM-guided fuzzer as a Balatro roguelike session