jitx-physical-layout

JITX workflow skills for PCB design. Use jitx-component-modeler for component creation from datasheets. Use jitx-circuit-builder for wiring circuits, passives, and application circuits. Use jitx-substrate-modeler for capturing information about the fabrication substrate. Use jitx-physical-layout for authoring physical layout geometry from code — shapely custom shapes, copper and overlappable copper (antennas, filters, net-ties), pad features, code-placed vias and routes, and layout-intent tags. Use jitx-interconnect-constraints for signal integrity constraints, topology, differential pairs, and protocol-level constraint patterns. Use jitx-pin-assignment for pin assignment patterns including provide/require, pin muxing, DiffPair P/N swapping, PCIe lane ordering, DDR byte/bit swapping, and topology+constraint composition on pin-assigned ports. Use jitx-code-review for same-model self-critique of JITX Python code against the anti-string-hacking architectural rules — mandatory for complete-board tier at task acceptance, user-invoked for single-task work. Use jitx-mechanical for mechanical CAD import/export through the jitx-mechanical CLI, Model3D STEP attachment, and board STEP export guidance.