0DTE SPX options analytics: Black-Scholes strike, iron condor, BWB and hedge calculators, live dealer-gamma and flow data (Schwab, Unusual Whales, GEXBot), Claude-assisted chart analysis and a Python ML pipeline. React 19 + TypeScript on Vercel, Python services on Railway, Neon Postgres, 14k+ tests.
3 files for Claude Code, Codex and OpenCode: periscope, Options-Strike-Calculator AGENTS.md, Options-Strike-Calculator CLAUDE.md — 9,255 tokens loaded in every session.
AGENTS.md A 458 tok CLAUDE.md A 8,797 tok .claude/skills/periscope/SKILL.md A 444 tok These files are cobriensr/Options-Strike-Calculator's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.