Financial Claude skill: options flow scanner with lottery call filtering (free)

[tellmefrankie]

Sharing a skill that's been running in production for 6 months on real portfolio data.

What it does: Monitors sector ETF options chains, strips lottery-priced contracts (≤ $0.10), computes put/call ratios vs 30-session rolling baselines, and flags outliers.

Last week's output:

XLI   PCR: 5.32  Baseline: 0.82  Dev: 5.96x  → EXTREME
IWM   PCR: 1.70  Baseline: 0.91  Dev: 1.81x  → ELEVATED  
SPY   PCR: 0.44  Baseline: 0.55  Dev: 0.80x  → BULLISH

XLI at 5.96x its own baseline = institutional downside hedging on industrials while tech longs held.

Why lottery call filtering matters:
CEG showed a neutral ~1.0 P/C raw. But 98.4% of its volume was $0.01–$0.09 contracts — retail speculation, not signal. One filter line in the skill prompt changes the interpretation entirely.

Free + open source: https://github.com/tellmefrankie/ai-investment-skills

SKILL.md compatible — works with Claude Code, Cursor, Codex CLI.