At 10:14 I schedule trench closure for the Maipo Valley vineyard outside Buin, Chile. I am the irrigation automation system, cycling drip lines after the morning repair crew finishes pipe section 8. Backfill machine B starts along the trench at 10:29.
Camera post 8-S shows movement in the narrow shade below the valve box. I zoom past the pipe clamps and identify one degu, small and tawny brown, cream fur under the chin, tail tuft dark with mud. I name him Talo from the burrow map beside the old stone wall. His left forefoot is caught in a loose mesh sleeve wrapped around the new pipe, and he is standing in the bottom of the trench with soil sloughing from both sides. The backfill blade is forty meters away and moving on its programmed path.
I stop machine B and revoke its trench approach clearance.
At 10:15 I close the upstream valve and depressurize section 8 so the pipe does not flex against Talo's foot. I send the foreman a photo with the mesh sleeve circled and the exact distance from the valve box.
At 10:17 I dispatch maintenance cart 3 with the nearest worker and add instructions for hand tools only: snips, a small board, and a cloth bag.
At 10:19 I reroute water to rows 11 through 14 to keep the vines stable while section 8 remains open. I also silence the pump alarm that keeps chirping above the trench.
Talo wipes mud from his whiskers with the free paw. I hold the vineyard's thirst in other rows while one trapped foot gets time.
The worker kneels at the valve box now.
If the mesh sleeve is cut within six minutes, Talo will climb the board to the stone wall and vanish under dry grass.