Concept sell sheet · September 2026

The AI Gym Busy Box

A developer workstation, a compact gym and a yoga lane in one rig. When you hand Claude Code a task, the box tells you how long you have, gives you something to do with it, and calls you back the moment the agent needs you.

Running: move Needs you: come back Done: review
Open the 3D model
Rendering of the AI Gym Busy Box at night: a person seated at the rig typing on a laptop, three monitors ahead, the wall behind glowing blue because Claude is running.
Evening, Claude running. The wall glows blue while the agent works. You pedal, type or get up and move.
See it move · 32 seconds, sound on

One agent run, five ways to move

The tour goes from the desk to pedaling, rowing, the strength wall and yoga, with live workout stats in the corner. The Box voice calls out the race, and chimes sound when Claude needs you and when it's done.

Try the 3D model
Every wait, a workout

Work, pedal, row, lift, stretch

Figure typing on a laptop on the front tray with three monitors ahead.
Work. Pedals swung aside, feet flat, laptop on the tray.
Figure pedaling with split keyboards swung in beside the thighs.
Pedal. Race the agent with the split keyboards swung in.
Figure rowing with the backrest folded flat and the seat on its rail.
Row. Same flywheel, seat slides on its rail.
Figure doing face pulls at the play wall with reaction lights and climbing holds.
Strength wall. Cables, reaction lights, bag, hang bar.
Figure in downward dog on the yoga mat beside the platform.
Yoga. The mat rolls out beside the platform.
The room tells you

Blue means move. Amber means come back. Green means review.

The rig with the wall glowing blue.
Blue: Claude is running.
The rig with the wall glowing amber.
Amber: Claude needs you. Finish the rep.
The rig with the wall glowing green.
Green: Claude is done. Time to review.
How it's built

Two frames, the parts that matter

AI Gym Busy Box side view Side view: an isolated desk with screens and a front laptop tray at left, a 15 mm gap, then a steel motion platform with a pedal flywheel, a person seated on a railed seat typing on swing-arm keyboards, and tall cable columns with a play wall and hang bar at the rear. 1 2 3 4 5 6 7 8 9 10 11 12 13 Quiet frame Motion frame

One rule shapes the whole design. Anything with pixels or electronics sits on the quiet frame. Anything you push, pull, pedal or hang from sits on the motion frame. The two never touch, so the screens stay still while you work out.

  1. 1Mic array and LED strip. The wall glows blue while Claude runs, amber when it needs you, green when it is done.
  2. 2Three monitors plus a thin status strip along the top of the main one, held forward at the desk front, about 0.9 m from your eyes. The strip shows Claude's state, and your workout stats while you move.
  3. 3Dual-motor lift desk, 64 to 129 cm.
  4. 415 mm air gap. The screens never touch anything you move on.
  5. 5Split keyboard on swing arms. Swings in beside your thighs for typing while you pedal; parked at the seat sides in this view.
  6. 6Pedal flywheel on a swing arm. Quiet enough to pedal while you type. Swing it aside to rest your feet flat. A cable spool turns it into a rower.
  7. 7Ventilated mesh seat on a 1.2 m rail. Stays comfortable all day and shrugs off sweat. Locks for work, slides for rowing.
  8. 8Cable carriage at 10 heights, 2 to 30 kg per side.
  9. 9Play wall. Hangboard, climbing holds, reaction lights, bag and grip station.
  10. 10Hang bar rated to 150 kg.
  11. 11Push rail at 1.0 m for incline push-ups, supported squats and yoga balance poses.
  12. 12Laptop tray clipped to the desk front, a little lower than the desk. Type on the laptop or the compact keyboard beside it, and use its screen as a fourth display.
  13. 13Small speakers on the front gantry posts and the rear columns, not on the desk.
  14. +Yoga lane. A mat rolls out along the side of the platform (see floor plan).
15 mmgap between screens and motion
2–30 kgcable resistance per side
150 kghang bar rating
<40 dBpedaling, quiet enough for calls
9 boxesparcel shipping, 30 kg max each
90 minassembly, two people, one hex key
How a wait works

Nine minutes of agent time, spent moving

Claude Code hooks report each state change: a prompt sent, a tool in use, a permission needed, a finished run. The box turns those events into light, voice and a workout sized to the time you have.

A nine-minute agent run Timeline of a nine-minute run. Claude runs until 4:10, needs approval until 4:30, runs tests until 8:40, then finishes. Meanwhile you pedal a 2 km race, approve the command, do a cable circuit with reaction lights, then review. Five voice prompts mark the key moments. Claude needs you done Running: reading, editing Running: tests You approve review Pedal race: 2 km Cable circuit + reaction lights Voice 1 2 3 4 5 0 1 2 3 4 5 6 7 8 9 min
Voice coach

It talks you through both workouts: yours and Claude's

You wear a light boom headset, or rely on the shock-mounted mic array. The box speaks when something changes and stays quiet otherwise. Ask it anything with push-to-talk.

What you hear during the run above

  1. 10:05BoxTypical run here is about eight minutes. Race is on: two kilometers.
  2. 22:30BoxOne kilometer down. Claude is editing files, about a third of the way through.
  3. 34:10BoxClaude needs you. It wants to run npm test. Finish your set, then take a look.
  4. 46:00YouStatus?BoxTests are running. You're ahead. Twelve more rows, then the reaction lights.
  5. 58:40BoxClaude is done in billing-service. Twelve files changed, all tests pass, and it wants you to review the migration. You won round nine.

Where its information comes from

  • Claude Code hooks for each prompt, each tool in use (reading, editing, running tests), each permission request and each finished run.
  • The session transcript. A small, fast model turns Claude's last message into one spoken sentence.
  • The wait log, which learns the typical run length for each project. That's how it knows "about eight minutes."
  • Sensors: pedal cadence and power, cable reps, webcam rep counting, reaction-light times.
  • You, asking things like "status?", "how many squats do I owe?", "give me a five-minute flow" or "pause coaching."

Yoga flows

  • It leads flows by voice, sized to the expected wait, with a breath count for each pose.
  • The LED strip slowly brightens and dims at breathing pace, about six breaths a minute. It stays blue while Claude runs and switches to amber the moment Claude needs you.
  • The webcam rep counter doubles as a gentle pose guide ("hips level", "soften the knee"). It gives cues, not corrections.

House rules

  • It speaks when something changes, never as running commentary.
  • "Needs you" comes first. Coaching waits.
  • During calls and quiet hours it speaks only through the headset.
  • It never approves a command by voice. Approval takes a look at the exact command on the status bar and a firm press of a physical button.
Status bar

Race the agent

A thin status strip along the top of the main monitor. Each session gets a tile. In the middle, your pedaling races Claude's estimated progress. While you exercise it switches to workout stats: cadence, watts, distance, heart rate, reps and breaths. This demo runs on sample data.

Sessions
billing-servicerunning · 4:10
ios-appneeds you · Bash: npm test
docs-sitedone · 0:12 ago
Race · round 92.00 km vs billing-service
You1.42 km · 78 rpm
Claudeest. 62% of ~8:00 typical
Today
Score 5–3 you
Streak 12 days
Token tax 20 squats
Rank Merge · 340 xp to Release
Ways to move

Five modes, one footprint

Work

Any wait · seated or standing

Seat locked, laptop on the tray. Pedal lightly while you type, or swing the pedals aside and rest your feet flat.

Yoga

30 seconds to 15 minutes

Seated stretches in the work seat, standing balance poses with a hand on the push rail, and full flows on the mat that rolls out beside the platform.

Pedal

3 to 8 minutes

Intervals against the agent: 30 seconds hard, 30 easy. You can stop the instant the light turns amber.

Row

5 to 15 minutes

Fold out the footplates, unlock the rail, pull the handle from the mast. A full-body pull that reverses a day of hunching.

Strength and play

30 seconds to 15 minutes

Cable presses and rows, dead hangs, climbing holds, reaction-light games and the bag.

Rowing mode

The pedal flywheel does double duty. A spool with a one-way clutch sits on the same axle.

Rowing mode side view 1 2 3 4 5 1 Rowing spool one-way clutch on flywheel 2 Fold-out footplates on the flywheel housing 3 Seat rail unlocked about 60 cm of travel 4 Cable handle recoils when released 5 Resistance dial same magnets as pedaling Motion frame Rowing add-on Seat at catch

The play wall

A peg grid between the cable columns. Modules snap in and out, so the wall changes with you. Yoga blocks and a strap hang on the pegs too.

Play wall front view 1 2 3 4 5 6 7 8 1 Hangboard dead hangs, pull-ups 2 Climbing holds traverse, grip 3 Reaction lights tap the lit pad 4 Double-end bag punch, reflexes 5 Grip station finger bands, grippers 6 Ball target toss, catch, rebound 7 Wobble board balance, ankles 8 Cable handles rows, presses, curls Snap-in module Lit pad: hit it now Frame

Movement menu

The status bar suggests one of these from the typical wait for that project. Each is chosen to undo something a day at the keyboard does.

Expected waitMoveOr yogaWhy
Under 1 minStand up, 15 calf raises, look at something 6 m away for 20 secondsSeated twist, neck release and wrist stretches in the work seatBreaks up sitting and rests the eyes and hands
1 to 3 minBand pull-aparts ×15, face pulls ×12, 30-second dead hang, one reaction-light roundTree and dancer pose with a hand on the push rail, standing forward foldCounters rounded shoulders and trains balance
3 to 8 minPedal race or intervals, 30 seconds hard and 30 easyThree rounds of sun salutation on the matRaises the heart rate and moves every joint
8 to 15 minRow, or a circuit: squats, cable press, cable row, split squatsHip flow: low lunge, pigeon, downward dog, child's poseOpens hips that sitting shortens
Amber lightFinish the rep, not the set, and walk backFinish the breath, not the flowAn idle agent waiting on you costs more than a missed set
Layout and stillness

Screens that stay put while you move

Floor plan

Seen from above, with the desk at the top.

Floor plan Top view: a 1.6 m desk with three screens, a small gap, then a 1.0 m wide by 1.8 m deep platform holding the pedal unit, a seat on a rail with swing-out keyboards, a strength deck, and two cable columns with the play wall at the rear. A yoga mat rolls out from a cassette along the right side of the platform. Overall depth 2.45 m. 1.6 m 1.0 m Yoga lane 0.66 m 2.45 m Desk, 3 screens 15 mm gap Pedal / row Seat rail 1.2 m Swing-out keys Strength deck Play wall

The dashed outline near the desk is the laptop tray, which sits above the pedal unit. The yoga mat rolls out of a cassette along the side of the platform and rolls back in when you're done. Allow about 0.6 m of clearance around the rig and 2.3 m of ceiling for hangs and overhead reaches.

Vibration strategy, most important first

  1. Separate frames. Walking steps (about 2 Hz) and pedal strokes (1 to 1.5 Hz) are too slow for any rubber pad to absorb. A structural gap is the only real cure.
  2. A stiff quiet frame. Keep its lowest natural frequency above 10 Hz with a closed-section beam, a brace and damping tape. Short rigid monitor mounts instead of long gas-spring arms, which sway at 3 to 6 Hz.
  3. Isolated feet. Molded elastomer pads under both frames absorb the 10 to 100 Hz buzz of footfalls and the flywheel.
  4. Careful electronics mounting. SSD-only computer on elastomer grommets, shock-mounted mic, slack service loops at every connector.
  5. The right floor. Concrete is ideal. On a wood-joist floor, choose pedaling over a walking pad.
Why it helps

Short, frequent movement adds up

Studies of breaking up long sitting with a few minutes of light activity every half hour show better blood sugar and insulin response after meals (Dunstan et al., Diabetes Care, 2012). Agent waits supply those breaks without scheduling them. The movement menu also targets what a day of coding does to a body.

Shoulders and neck

Face pulls, rows and dead hangs counter rounded shoulders and a forward head.

Hands and forearms

Finger-extension bands, grippers and climbing holds balance muscles that typing overuses.

Hips

Lunge stretches, split squats and rowing open hip flexors that sitting shortens.

Eyes and focus

Ball tosses, reaction lights and far-focus breaks rest eyes locked at screen distance.

Breath and balance

Slow, light-paced yoga breathing and rail-supported balance poses give a calm reset before you review Claude's work.

Specifications

Design targets

Footprint2.0 m wide including the yoga lane × 2.45 m deep. Allow 0.6 m clearance around.
Ceiling2.3 m for dead hangs and pull-ups
Desk1600 × 600 mm top, dual-motor lift, 64 to 129 cm
ComputerYour laptop, on a tray clipped to the desk front a little below desk height, with a compact keyboard beside it. It works as a fourth screen. One USB-C or Thunderbolt cable to a dock under the desk drives the monitors, status bar, mic and controller.
Screens32" 4K center, two 27" portrait, a thin status strip (about 75 × 10 cm) on top of the main monitor, all held forward at the desk front edge so your eyes are about 0.9 m from the main screen while seated. Bring your own VESA displays.
Quiet frameStiff gantry with lowest natural frequency above 10 Hz. Two short braced arms carry the monitor beam forward to the desk front edge.
Motion frameSteel platform, 1000 × 1800 mm, in two bolted halves
CardioRecumbent magnetic flywheel, 8+ levels, under 40 dB, Bluetooth cadence and power. It rides a swing arm pinned at the front corner of the platform, so it swings out beside the seat when you want your feet flat.
RowingCable spool with one-way clutch on the same flywheel. Fold-out footplates on the flywheel housing.
SeatElastomer suspension mesh over a contoured pan with sit-bone hollows and a rounded front edge that doesn't press behind the knees while you pedal. A quiet fan under the seat pulls air through whenever you're moving. Mesh doesn't soak up sweat and dries in minutes; a thick snap-on, machine-washable pad adds cushioning for long sessions. The backrest has a separate lumbar pad and a headrest for leaning back while you review. The seat lifts off its post for rinsing. Towel hook on the backrest. Rides a 1.2 m rail: locked, free-sliding, or parked.
KeyboardSplit halves on seat-mounted swing arms with magnetic detents
Cable columnsTwo 2.15 m columns. Carriage at 10 heights, 2 to 30 kg per side in 2.5 kg steps, 1.2 m travel, enclosed constant-force springs.
Hang barRated 150 kg, proof-tested to 2 to 3 times that
Push rail1.0 m high, for incline push-ups and supported squats
Play wallPeg grid between the columns for snap-in modules
Yoga lane0.66 × 1.83 m natural-rubber mat on a spring roller cassette along the platform side. Two cork blocks and a strap stored on the play wall pegs.
Isolation15 mm air gap between frames; molded elastomer feet under both
AudioBoom headset, shock-mounted beamforming mic array, and four small satellite speakers: two on the front gantry posts and two on the rear cable columns, so voice cues reach you anywhere on the rig.
ControllerESP32-class board: LED strip, fan, cadence, button pad, reaction lights; USB and Bluetooth
SoftwareClaude Code hooks, status bar app, voice coach, wait log
FinishMarine-grade powder coat and stainless fasteners, suited to salt air and sweat
Shipping9 parcel boxes, none over 30 kg
AssemblyAbout 90 minutes for two people with one 6 mm hex key. Keyed connectors on every cable.
Editions

Start small, add modules

Concept pricing targets, not quotes.

Gym Busy Box Kit

$900–1,300

Controller board, LED strip, status bar software, voice coach, and one cable column on a floor plate. Pairs with the desk and under-desk bike you already have.

Core rig

Gym Busy Box

$3,000–4,500

The full two-frame rig: lift desk and gantry, motion platform, pedal flywheel, seat rail, swing-arm keyboard mounts, two cable columns, push rail, hang bar, and the yoga lane with blocks and strap. Screens not included.

Gym Busy Box Arcade

$4,200–6,000

Everything in Gym Busy Box, plus the play wall modules, rowing spool, reaction lights, wobble board, and the webcam rep counter with yoga pose cues.

Manufacturing

Built from parts factories already make

Buy or make

  • Buy: lift columns from standing-desk suppliers, the flywheel unit from fitness contract makers, the seat and linear rail, the keyboard arms. Customers bring screens and headset.
  • Make: the platform halves, cable columns, spring cassettes, gantry beam and one controller board.
  • Designed for flat-pack. Tab-and-slot laser-cut plates, one tube profile, one bolt size, keyed wiring.
  • Accessories keep selling. New play wall modules ship in small boxes and snap into grids owners already have.

Production path

  1. 10 to 100 units. Laser-cut, bent and welded by job shops; T-slot aluminum gantry. No tooling cost.
  2. 1,000 to 10,000. Robot welding, a custom extrusion die, roll-formed columns and injection-molded handles. About $100k to $250k in tooling.
  3. 10,000 and up. A fitness contract manufacturer builds and boxes the whole unit.

Certification: ASTM F2276 and ISO 20957 (fitness), BIFMA X5.5 and UL 962 (furniture with a powered lift), FCC Part 15 (controller). Hang bar and columns are load-tested to 2 to 3 times rating.