Diagram Design hits 33.9k stars: 39 editorial diagram templates for Claude Code and Codex

tom_doerr · x · 2026-09-08

Diagram Design, an open-source project with 33.9k GitHub stars, offers 39 editorial-grade diagram templates that run in Claude Code, Codex, Factory Droid, Pi, and any Agent Skills-compatible host, producing self-contained HTML and SVG with no shadows and 'no Mermaid slop.' Version 2.x additions include the Loop (flywheels with a shared-memory hub and write-back edges), semantic system patterns, optional accessible motion, and ten new layout grammars: Sankey, fishbone, Wardley map, kanban, user journey, deployment, dependency graph, UML class, story map, and database schema. A practical way to get designer-quality architecture, data-flow, and process diagrams straight from coding agents.

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