recursive-string-diagrams

Recursive random string diagram generation with white trapezoid as the atomic skill primitive.

Primitives

GF(3) Trit Assignment

Each white trapezoid carries a trit:

• MINUS (-1): Constraining/validating skill
• ERGODIC (0): Neutral/transforming skill
• PLUS (+1): Generating/expanding skill

Conservation: Σ trits ≡ 0 (mod 3) across diagram

Usage

;; Generate random diagram depth 4
(random-diagram 0 4)

;; Render ASCII
(render-ascii diagram 0)

Example Output

⊗ tensor
  ↺ trace[1]
    ◁═══▷ [3→2] ergodic
  ∘ compose
    ◁═══▷ [2→2] minus
    ◁═══▷ [3→3] plus

Semantics (Rama Connection)

DisCoPy Integration

from discopy import Ty, Box, Diagram

# White trapezoid as Box
skill = Box('skill', Ty('in'), Ty('out'))

# Compose
d1 >> d2

# Tensor
d1 @ d2

# Trace
d.trace(n)

Skill Creation Protocol

1. Seed: White trapezoid with [inputs → outputs]
2. Recurse: Apply random {∘, ⊗, ↺} up to depth
3. Color: Assign GF(3) trits, verify conservation
4. Render: ASCII or DisCoPy SVG
5. Save: Write to ~/.claude/skills/<name>/SKILL.md

Related

• discopy - String diagram library
• acsets - Algebraic databases
• rama-gay-clojure - Rama + GF(3) colors

SDF Interleaving

This skill connects to Software Design for Flexibility (Hanson & Sussman, 2021):

Primary Chapter: 3. Variations on an Arithmetic Theme

Concepts: generic arithmetic, coercion, symbolic, numeric

GF(3) Balanced Triad

recursive-string-diagrams (−) + SDF.Ch3 (○) + [balancer] (+) = 0

Skill Trit: -1 (MINUS - verification)

Secondary Chapters

• Ch1: Flexibility through Abstraction

Connection Pattern

Generic arithmetic crosses type boundaries. This skill handles heterogeneous data.