Sharing: financial analysis CLI skill built with Claude Code (options flow + sentiment)

[tellmefrankie]

For those building Claude Code CLI tools — sharing a financial one that's in production.

What it does:
Monitors sector ETF options chains, filters noise, surfaces real institutional positioning signals. Outputs clean structured data to Telegram every morning.

The key insight that makes it work:
Before computing put/call ratios, strip contracts priced ≤ $0.10. CEG had a 'neutral' P/C of 1.0 — until we filtered: 98.4% of its options volume was lottery tickets. The real signal was completely different.

Real output:

XLI   P/C 5.32  Baseline 0.82  Dev 5.96x  EXTREME
SPY   P/C 0.44  Baseline 0.55  Dev 0.80x  BULLISH

Free GitHub: https://github.com/tellmefrankie/ai-investment-skills

Works with Claude Code CLI. SKILL.md format.