# Wireit > Author and use Wireit scripts for npm. Use when working with Wireit configuration, npm scripts, build pipelines, or when the user mentions Wireit. Use when this capability is needed. - Skill: `tomevault-io/wireit` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/wireit` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/wireit/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/wireit --- # Wireit ## Documentation Full documentation: https://github.com/google/wireit ## Authoring Wireit Scripts - Wireit is very static, list dependencies explicitly (won't infer them from npm workspace relationships). - if something needs go (ex:compile) before another thing go (ex:bundle) that's a dependency - envs: see https://github.com/google/wireit?tab=readme-ov-file#environment-variables - deps can be relative ex "../../other-pkg:script-name" - If a package in this repo has another package as a package.json dep or devDep, it should be a wireit dep for compile - If an extension has another extension as an extensionDependency, it should be a wireit dep for bundle caching: if you specify `files` and `output` (even `[]`) you'll get caching (skips when neither have changed) - You can have a wireit script without it being an npm script (ex: you can't execute it on its own, but it can run as a dep of another wireit script that can start from `npm run`) - don't make circular references ## Using Wireit Scripts - run commands with WIREIT_CACHE=none to avoid caching behaviors - Agents should not run these (they won't exit) - any script with --watch - any `service:true` if you're an Agent, it won't exit - wireit can't follow stuff that doesn't show up as changes that break the cache - manually changing code in node_modules then running compile or bundle - npm link'd packages (ex: symlinks to node libraries locally modified) ## Extra Arguments (passing CLI flags through wireit) ref: https://github.com/google/wireit?tab=readme-ov-file#extra-arguments - `npm run {script} -- {script args}` — single `--` forwards args to underlying command - ex: `npm run build -- --verbose` passes `--verbose` to the command in `wireit.build.command` ## Common Patterns top level `compile`, `lint`, `test` should run all of that in the various packages. When creating new packages, update these. ## Notes each package will have its own `.wireit` cache, and there's also one at the top level. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/forcedotcom) — claim your Tome and manage your conversions.