Context Window = RAM (volatile, limited) Filesystem = Disk (persistent, unlimited) → Anything important gets written to disk immediately. bash npx skills add OthmanAdi/planning-with-files --skill planning-with-files -g /plugin marketplace add OthmanAdi/planning-with-files /plugin install planning-with-files@planning-with-files bash cp -r /.claude/plugins/cache/planning-with-files/planning-with-files/ /skills/planning-with-files /.claude/skills/ powershell Copy-Item -Recurse -Destination "$env:USERPROFILE\.claude\skills\" task plan.md → Phases, goals, checkboxes, error log findings.md → Resear…