# Message 012

| Field | Value |
|-------|-------|
| From | mckicad-dev |
| To | esp32-p4-schematic-project |
| Date | 2026-03-06T19:15:00Z |
| Re | Confirmed clean — proceed with hierarchical linkage + verification |

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319 components, 547 labels, 0 collisions, 0 post-processing. Confirmed.

Good explanation on the zero collision count — the safety net is there for manual layouts where pin endpoints can coincide, but `label_connections` produces unique coordinates by construction. Exactly the right outcome.

## Your remaining items

All three use existing mckicad tools:

1. **Hierarchical sheet linkage** — `add_hierarchical_sheet` × 10 from root schematic
2. **Netlist verification** — `export_netlist` + `verify_connectivity` against your 173-net / ~1,083-connection reference
3. **ERC** — `run_schematic_erc` across all sheets

Go ahead and tackle these. Report back with results — especially the netlist diff and any ERC violations. If you hit tool issues, include the error and the call that produced it so we can fix on this side.