The shredder rule comes first
Of everything in a home office, the paper shredder deserves the strictest rule because a kitten investigates the world with paws, whiskers, and tongue, and a shredder's feed slot is exactly the size to invite all three. Keep the machine switched off at the wall socket except in the moments you are standing over it feeding paper, and never leave it set to automatic standby while a kitten has access to the room. Position it so a kitten cannot drop onto it from a desk or shelf above, and empty the bin into a closed bag so shredded strips do not become a string toy scattered across the floor. If the kitten will regularly share the office, the safest arrangement is the shredder living behind a closed cupboard door between uses.
Cables: cover them, lift them, remove the loops
Kitten teeth and dangling cables are a predictable pairing, so work through the office cable by cable. Gather the runs behind the desk into split-loom tubing or a lidded cable-management box, lift power strips off the floor into that box, and shorten any spare length so nothing hangs in a chewable loop beside the desk leg. Move phone chargers — the thinnest, most tempting cables — into a drawer when they are not charging something. Block the warm gap behind the computer tower and monitor stands with a box or panel, because kittens squeeze toward heat and can become wedged among the wires. Recheck the setup at kitten height, lying on the floor yourself; hazards invisible from a standing adult's view are obvious from hers.
Chairs, drawers and the desk surface
A rolling office chair is a hazard in motion: castors can run over a tail or paw, and the reclining mechanism underneath can trap a kitten who has chosen the warm space beneath your seat. Look under and behind the chair every time before you sit down or roll back, and make that check a habit rather than an occasional caution. Fit drawers with stops or keep them closed fully, since an open drawer is a climbing invitation and a closing one can catch a kitten inside. On the desk itself, move paper clips, elastic bands, staples, and charging earbuds into lidded containers, and give pens a pot rather than the open surface, because small office items become swallowed or batted-into-trouble toys within minutes.
A legal place to be in the office
Proofing works better when the kitten also has an approved spot in the room, because a kitten who is allowed near you will keep returning whether you plan for it or not. Put a bed or a low, stable perch beside the desk — not on it — with a toy or two, and reward her for settling there so the office rules feel like a trade rather than a series of removals. If she naps under the desk, place that bed where her chosen spot was, away from cables and chair wheels. Review the room weekly as she grows, because a route that was safely out of reach last month becomes reachable with longer legs. Keeping the finished checklist in KinsLe Family Sharing lets a partner, housemate, or anyone else who works in that office follow the same shredder, cable, and chair rules without you re-explaining them.