fintech-algorithms 717 pure functions for market, financial and statistical calculations. Plain arrays and objects in, plain values out. Zero runtime dependencies, Node = 22, ESM. Docs: https://docs.thefintechbuilder.com · Authoritative agent guide: https://docs.thefintechbuilder.com/guides/ai-agents/ Non-negotiables Four rules. Breaking any one produces output that looks right and is wrong. 1. Never invent an import path, a function name, or a parameter. Every subpath mirrors its docs URL exactly, which makes a plausible guess wrong in a way that reads as correct. Look it up — or the resolut…