Creates or updates the project constitution that defines migration principles, constraints, and conventions. Triggers: "set up constitution", "define migration principles", "create project rules", "establish conventions", "establish migration constitution". NOT for: implementation, implementation planning, task generation.
Install
npx skills add microsoft/github-copilot-modernization --skill setting-up-constitutionnpx skills add microsoft/github-copilot-modernization --skill setting-up-constitution -a claude-code -gnpx skills add microsoft/github-copilot-modernization --skill setting-up-constitution -a codex -ggemini skills install https://github.com/microsoft/github-copilot-modernization.git --path plugins/github-copilot-modernization/skills/setting-up-constitutiongh skill install microsoft/github-copilot-modernization setting-up-constitutiongit clone --depth 1 https://github.com/microsoft/github-copilot-modernization /tmp/microsoft__github-copilot-modernization
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/microsoft__github-copilot-modernization/plugins/github-copilot-modernization/skills/setting-up-constitution ~/.claude/skills/setting-up-constitution # Claude Code
cp -R /tmp/microsoft__github-copilot-modernization/plugins/github-copilot-modernization/skills/setting-up-constitution ~/.agents/skills/setting-up-constitution # Codex, Cursor, Gemini CLI, Copilot, OpenCode