Migration and code evolution instructions generator for GitHub Copilot. Analyzes differences between two project versions (branches, commits, or releases) to create precise instructions allowing Copilot to maintain consistency during technology migrations, major refactoring, or framework version upgrades.
Install
npx skills add github/awesome-copilot --skill generate-custom-instructions-from-codebasenpx skills add github/awesome-copilot --skill generate-custom-instructions-from-codebase -a claude-code -gnpx skills add github/awesome-copilot --skill generate-custom-instructions-from-codebase -a codex -ggemini skills install https://github.com/github/awesome-copilot.git --path skills/generate-custom-instructions-from-codebasegh skill install github/awesome-copilot generate-custom-instructions-from-codebasegit clone --depth 1 https://github.com/github/awesome-copilot /tmp/github__awesome-copilot
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/github__awesome-copilot/skills/generate-custom-instructions-from-codebase ~/.claude/skills/generate-custom-instructions-from-codebase # Claude Code
cp -R /tmp/github__awesome-copilot/skills/generate-custom-instructions-from-codebase ~/.agents/skills/generate-custom-instructions-from-codebase # Codex, Cursor, Gemini CLI, Copilot, OpenCode