Update an existing implementation plan file with new or update requirements to provide new features, refactoring existing code or upgrading packages, design, architecture or infrastructure.
Install
npx skills add github/awesome-copilot --skill update-implementation-plannpx skills add github/awesome-copilot --skill update-implementation-plan -a claude-code -gnpx skills add github/awesome-copilot --skill update-implementation-plan -a codex -ggemini skills install https://github.com/github/awesome-copilot.git --path skills/update-implementation-plangh skill install github/awesome-copilot update-implementation-plangit 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/update-implementation-plan ~/.claude/skills/update-implementation-plan # Claude Code
cp -R /tmp/github__awesome-copilot/skills/update-implementation-plan ~/.agents/skills/update-implementation-plan # Codex, Cursor, Gemini CLI, Copilot, OpenCode