Contributor guide for developing BESSER itself (https://github.com/BESSER-PEARL/BESSER). Use this skill whenever the user is working *inside* the BESSER source tree — adding a new generator (the most common contribution), adding a new metamodel or sub-DSL under `besser/BUML/metamodel/`, writing pytest tests for generators or metamodels, writing JSON↔BUML converters for the web editor, building…
Install
npx skills add BESSER-PEARL/BESSER-Skills --skill besser-devnpx skills add BESSER-PEARL/BESSER-Skills --skill besser-dev -a claude-code -gnpx skills add BESSER-PEARL/BESSER-Skills --skill besser-dev -a codex -ggemini skills install https://github.com/BESSER-PEARL/BESSER-Skills.git --path skills/besser-devgh skill install BESSER-PEARL/BESSER-Skills besser-devgit clone --depth 1 https://github.com/BESSER-PEARL/BESSER-Skills /tmp/BESSER-PEARL__BESSER-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/BESSER-PEARL__BESSER-Skills/skills/besser-dev ~/.claude/skills/besser-dev # Claude Code
cp -R /tmp/BESSER-PEARL__BESSER-Skills/skills/besser-dev ~/.agents/skills/besser-dev # Codex, Cursor, Gemini CLI, Copilot, OpenCode