Free, simple, and intuitive online database diagram editor and SQL generator.

A comprehensive collection of ready-to-use scientific and research skills for AI agents.

Generate draw.io diagrams from natural language — 6 presets, vision self-check + up to 5-round refinement, codebase-to-diagram, 10,000+ official shapes & 321 AI/LLM brand logos. Exports PNG/SVG/PDF/JPG.

D2 is a modern diagram scripting language that turns text to diagrams.

AI skill for OpenClaw & Claude Code — recommend from 10000+ Nano Banana Pro (Gemini) image prompts. Smart search by use case, content remix, sample images.

A reusable skill kit for AI agents to generate structurally precise and aesthetically standardized draw.io diagrams across major cloud platforms and BPMN, with declarative layout, stencils, and validation.

A full-lifecycle Claude Code skill for creating, compiling, reviewing, and polishing academic Beamer LaTeX presentations with quality scoring and pedagogical audits.

Entity-Relationship Diagram Editor

Hedy is a gradual programming language to teach children programming. Gradual languages use different language levels, where each level adds new concepts and syntactic complexity. At the end of the Hedy level sequence, kids master a subset of syntactically valid Python.

A local-first framework and skill collection for architecture firms to build and share AI-assisted workflows using Claude Code.

Circular visualization in Python (Circos Plot, Chord Diagram, Radar Chart)

A reusable agent skill that converts natural language into validated Mermaid diagrams and renders them to PNG/SVG/PDF via multiple backends.