klayout-tools

Use when writing, reading, or understanding KLayout DRC rules (.drc files). Provides KLayout Ruby DSL syntax, common DRC patterns, and reference lookup instructions.

Use when running KLayout DRC evaluation pipelines — executing DRC rules against GDS test files, parsing results, and computing metrics.

Use when inspecting, reading, or modifying existing GDS layout files. Covers reading GDS with KLayout Python API, extracting geometry info, and GDS-to-text conversion.

Use when creating GDS layout files programmatically using KLayout's Python API (pya module). Covers cell creation, shape insertion, and file output.