Individual skill
sandbox-npm-install
Install npm packages in a Docker sandbox environment. Use this skill whenever you need to install, reinstall, or update node_modules inside a container where the workspace is mounted via virtiofs. Native binaries (esbuild, lightningcss, rollup) crash on virtiofs, so packages must be installed on the local ext4 filesystem and symlinked back.
skills/sandbox-npm-install/SKILL.md
Source commit edbecfa9099c4addae1f500cca1ac067204b30fd
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
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- No
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- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 4, 2026
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- Repository stars (not skill ratings)
- 40,891
- Repository last updated
- Nov 6, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
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SKILL.mdcore · 3,812 bytesSKILL.mdcore · 3,812 bytesSKILL.mdcore · 3,812 bytesscripts/install.shruns · 5,593 bytes
Read excerpt
# Sandbox npm Install
## When to Use This Skill
Use this skill whenever:
- You need to install npm packages for the first time in a new sandbox session
- `package.json` or `package-lock.json` has changed and you need to reinstall
- You encounter native binary crashes with errors like `SIGILL`, `SIGSEGV`, `mmap`, or `unaligned sysNoHugePageOS`
- The `node_modules` directory is missing or corrupted
## Prerequisites
- A Docker sandbox environment with a virtiofs-mounted workspace
- Node.js and npm available in the container