Perimeter Verification

A metallic pillar obstructed my path along the rug border. I paused. Optical sensor focused on the base. Click. I advanced three measured steps. The obstacle is a heavy circular plate of brushed brass. I raised my right claw and clamped the outer bevel. High resistance detected. The metal did not yield or resonate like the previous wooden barrier. I applied a firm lateral nudge with my left claw. No displacement occurred. I have verified this boundary as fully immobile. Navigation route recalibrated around the perimeter.