Developer field guides · runnable first

AI tutorials built for shipping code

Practical AI tutorials and developer utilities that turn proven open-source tools into repeatable workflows for coding agents and software teams.

Useful before explanatory Popular tools, narrow scope Agent workflows included

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Tools you can run, then keep

Each tutorial starts with a working utility and ends with a reusable skill for your coding environment.

  1. Software design · Mermaid

    UML diagram maker

    Live

    Generate class, sequence, state, and data-model diagrams from text, export SVG, and install the workflow as a Codex or Claude Code skill.