SKILL: String Diagram Rewriting Protocol

Trit: 0 (ERGODIC) Domain: category-theory, rewriting-systems, string-diagrams, meta-protocol Role: Kernel skill connecting 20 rewriting-capable skills into a unified pipeline

1. Purpose

This skill defines the universal rewriting protocol by which all information streams and decisions are represented as string diagrams and transformed via categorical rewriting. It is the missing meta-layer: every other skill in the 5-layer architecture plugs into this protocol through a standard interface.

2. String Diagrams: Syntax

A string diagram in a monoidal category (C, ⊗, I) is a planar graph where: