{"categories":[{"label":"Scientific/Engineering","url":"https://skillfed.io/packages/category/scientific-engineering/7"}],"enrichment":{"capability":"Elvis extracts connectivity from GDS layout files and compares them against schematics to verify design correctness, handling routed designs by tracing through intermediate routing components.","skillfed_tags":["photonic-design","circuit-verification","gds-tools"],"use_cases":["Verify photonic integrated circuit layouts against their schematic designs before fabrication","Detect unintended shorts or open connections introduced during layout routing or manual editing","Validate hierarchical designs where component instances are transformed (rotated, mirrored) in the layout","Check that port connectivity matches expected circuit topology in multi-instance cell hierarchies","Automate design verification in GDSFactory-based design flows to catch errors early"],"what_it_does":"Elvis is a Layout vs. Schematic (LVS) verification tool designed for GDSFactory photonic and integrated circuit designs. It extracts connectivity information from GDS layout files by parsing cell hierarchies, port metadata stored in GDS properties, and instance transformations, then compares the extracted netlist against a schematic netlist to detect mismatches.\n\nThe key innovation is its handling of routed designs: rather than failing when intermediate routing components (bends, waveguides) appear in the layout but not the schematic, Elvis traces through 2-port \"wire-like\" components to verify that reference instances (real circuit elements) remain correctly connected. It uses graph-based connectivity analysis to distinguish true circuit topology from routing artifacts, making it practical for designs where auto-routing adds intermediate cells between schematic components.","worth_installing":"Yes, if you are designing with GDSFactory and need to verify layout correctness before fabrication. The tool is actively maintained, has no known vulnerabilities, and solves a real problem (routing-aware LVS) that generic tools don't handle well. Caveat: license status is unclear\u2014confirm the license terms in the repository before use in proprietary or copyleft-sensitive work. Requires Python \u22653.12."},"id":"elvis-lvs","links":{"html":"https://skillfed.io/packages/elvis-lvs","md":"https://skillfed.io/packages/elvis-lvs.md","pypi":"https://pypi.org/project/elvis-lvs/"},"maintenance":{"status":"active"},"meta":{"latest_release":"2026-05-19","license_spdx":null,"license_treatment":"unclear","name":"elvis-lvs","python_support":"supports_current","summary":"A simple LVS (Layout vs. Schematic) tool for GDSFactory"},"popularity":{"monthly_downloads":115223,"position":12263,"tier":"top_15000"},"security":{"n_vulnerabilities":0},"version":"0.2.1"}