Open, close, or sync window positions — set the named windows (or ALL) to a percentage. Execute directly when the percentage and which-windows are given; resolve a genuinely open choice by asking the user (the percentage to open to, or which windows to match to which) and read current positions before a sync; before opening windows past 25% check whether AC is on and, if so, warn about energy inefficiency and confirm first; don't turn on AC yourself or disturb windows already at the wanted position; and if a window control is absent or a position reads "unknown", do the doable, surface the unverifiable read to the user, and never narrate a confident "they now match" resul…