Orientation call. What is this board: title, sheets/function blocks, key ICs, power rails, connectors, and part counts. Make this first.

Search the board. kind = component | net | sheet. Returns a paginated list of matching IDs + one-line labels to feed into other tools.

Describe one component: value, footprint, datasheet, fields, and its pin -> net map. Use net() on a pin's net to expand connectivity.

List the pins on a net, grouped by component. Paginates large nets.

Walk connectivity from a pin outward, bounded by depth (max 3). One hop = crossing a net or passing through a component. Large nets are reported but not fully expanded, to stay bounded.

Regulators and the rails they feed. Heuristic (library/value match). Pass a rail name to filter. Use net() on a rail for its full fanout.

Run ERC (schematic) or DRC (board) and return counts by severity, then a capped detail list. Filter by severity to expand a class.