# Step 13: Placement

place the parts for routability, current and heat; the binary packs, checks courtyards and lands moves; reserve visible space for connector labels and the two-sided service silkscreen; the switch-node check refuses switch copper under another part or a switch loop longer than the spec allows, and sends the AI back here

## Visits

- 2026-10-18T19:47:49Z
- 2026-10-18T20:30:29Z (a return: Move C5 and TP3 next to L1.1 and U1.2 so total SW trace length is under 12 mm)

## What the binary checked

### place-land

- **accepted**: 28
- **parts**: 28

## Screenshots and drawings

**start**

![start](pub-shot-placement-1-start.png)

**start**

![start](pub-shot-placement-2-start.png)

**end**

![end](pub-shot-placement-2-end.png)

## Clips

::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/pub-window-3543304-20261018-194858-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/pub-window-3543304-20261018-194858-poster.jpg" title="Placement, visit 1 (10x)" muted="true"}

::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/pub-window-19530338-20261018-203054-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/pub-window-19530338-20261018-203054-poster.jpg" title="Placement, visit 2 (10x)" muted="true"}

## AI usage (Google Antigravity)

108 model calls: 437,895 fresh input, 15,923,237 cached input and 98,303 output tokens.