Use for any task that spans more than a couple of steps, files, or sessions — refactors, migrations, multi-file features, anything that must survive a context reset or crash. Trigger when the user asks for a plan, says "keep track of this", "don't lose the thread", or when a task is large enough that forgetting step four is likely.
Install
npx skills add OneWave-AI/claude-skills --skill plan-in-filesnpx skills add OneWave-AI/claude-skills --skill plan-in-files -a claude-code -gnpx skills add OneWave-AI/claude-skills --skill plan-in-files -a codex -ggemini skills install https://github.com/OneWave-AI/claude-skills.git --path plan-in-filesgh skill install OneWave-AI/claude-skills plan-in-filesgit clone --depth 1 https://github.com/OneWave-AI/claude-skills /tmp/OneWave-AI__claude-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/OneWave-AI__claude-skills/plan-in-files ~/.claude/skills/plan-in-files # Claude Code
cp -R /tmp/OneWave-AI__claude-skills/plan-in-files ~/.agents/skills/plan-in-files # Codex, Cursor, Gemini CLI, Copilot, OpenCode