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lsystem-executor

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Execute L-system and shape grammars to produce visual derivations, SVG/PNG renders, and optional STL meshes

skills/lsystem-executor/SKILL.md

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# L-System Executor

Execute parametric L-system grammars and render the results as images or meshes.

## Overview

Takes a grammar definition (axiom + rewrite rules) and produces:
- Step-by-step derivation showing the string at each iteration
- 2D turtle-graphics rendering as SVG and PNG
- Optional 3D extrusion to STL (if `--stl` flag is passed)

Useful for investigations that produce symbolic growth grammars (urban evolution,
microstructure growth, biological branching) and need a concrete visual artifact.