# Sass With Winnetoujs > Guide for using Sass with WinnetouJs constructos. Use this skill to write modular, maintainable styles in your Winnetou.js projects. Use when this capability is needed. - Skill: `tomevault-io/sass-with-winnetoujs` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/sass-with-winnetoujs` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/sass-with-winnetoujs/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/sass-with-winnetoujs --- RULES: - compiler runs in background; do not ask user to run it - `@use` is preferred over `@import` and must be above all other statements - .scss files of constructos must be in the same directory as the constructo file - each constructo file (wcto.html) should have its own .scss file named after the constructo - refer to package.json scripts to understand how sass is compiled and it entry point - When create sass file, add it to entry point sass file (e.g., main.scss) with `@use` in order to include it in the build --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/cedrosdev) — claim your Tome and manage your conversions.