pcb

name	pcb
description	Work with PCB designs in the Zener hardware description language. Use when writing or editing `.zen` files, building schematics, searching for components or Zener packages, or reading/updating KiCad `.kicad_sym` symbol metadata. Also use this skill when you need to resolve datasheets into local markdown and images for analysis.

PCB

Zener is a Starlark-based HDL for PCB design. .zen files define components, nets, interfaces, and modules. Key concepts:

• Net: electrical connection between pins
• Component: physical part with symbol, footprint, pins
• Interface: reusable grouped connection pattern (e.g., Spi, I2c, Uart)
• Module: hierarchical subcircuit, instantiated with Module("path.zen")

IMPORTANT: Before writing or modifying .zen code, run pcb doc spec to read the language specification. The spec covers syntax, built-in functions, type system, and common patterns. For specific topics: pcb doc spec --list shows all sections, pcb doc spec/<section> reads one section.

Prefer stdlib generics (@stdlib/generics/) over specific components when possible. Generics like Resistor, Capacitor, Led are parameterized by value/package and resolved to real parts at build time.

Common imports: load("@stdlib/interfaces.zen", "Power", "Ground", "Spi", "I2c", ...) for standard net types and interfaces.

Datasheet Workflow (Important)

When datasheet content is needed, call resolve_datasheet first.