Sigil — An MCP-Native Technical Analysis Runtime That Talks to Claude

I needed a TA library that did three things I couldn't find together: Indicators that aren't a stack of opinionated TA-Lib glue. Pure Python, deterministic, zero runtime deps. Composite signals my way, not LuxAlgo's. No copying. Different naming. Different weighting. MCP-native runtime so Claude / Cursor / Cline can query live signals without glue code. So I built one. It's called Sigil ( pip install sigil-ta ), and I'm releasing v0.1.0 today. What's in the box 8 core indicators — pure Python, n