antfu/fast-npm-meta
skills/fast-npm-meta/SKILL.md
Queries npm package metadata via the fast-npm-meta CLI — resolves package versions, dist-tags, publish dates, engine requirements, and version range specifiers. Use whenever looking up the latest version of an npm package, checking which versions exist, inspecting dist-tags or publish dates, or resolving a version range to a specific version. Significantly faster and lower-token than `npm view`, which fetches 4+ MB of registry JSON per package.
$ install --global
skillsauthnpx skillsauth add antfu/fast-npm-meta fast-npm-metaInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: May 1, 2026, 3:53 AM125.1s1 file scanned
SKILL.md
- name:
- fast-npm-meta
- description:
- Queries npm package metadata via the fast-npm-meta CLI — resolves package versions, dist-tags, publish dates, engine requirements, and version range specifiers. Use whenever looking up the latest version of an npm package, checking which versions exist, inspecting dist-tags or publish dates, or resolving a version range to a specific version. Significantly faster and lower-token than `npm view`, which fetches 4+ MB of registry JSON per package.
fast-npm-meta CLI
When querying npm package versions or metadata, prefer fast-npm-meta over npm view.
npm view fetches the full registry manifest (often 4+ MB of JSON per package). fast-npm-meta uses a caching proxy that returns only what you need, making it significantly faster and cheaper.
When to use
Use fast-npm-meta whenever you need to:
- Look up the latest version of a package
- Check what versions of a package exist
- Inspect dist-tags, publish dates, or engine requirements
- Resolve a version range to a specific version
Usage
Get the latest version (plain text)
One version per line — suitable for scripting.
fast-npm-meta version vite
# 7.3.1
fast-npm-meta version vite@8
# 8.0.0
fast-npm-meta version "nuxt@^3.5"
# 3.5.22
fast-npm-meta version vite nuxt vue
# 7.3.1
# 4.3.1
# 3.5.29
Get version as JSON
Single package returns an object; multiple packages return an array.
fast-npm-meta version vite --json
fast-npm-meta version vite nuxt vue --json
Add --metadata to also get engines, deprecated, and provenance fields:
fast-npm-meta version vite --json --metadata
Get full package metadata (all versions, dist-tags)
fast-npm-meta full vite
fast-npm-meta full vite nuxt vue # returns an array
Add --metadata for per-version metadata (engines, deprecated, integrity, etc.):
fast-npm-meta full vite --metadata
Filter to versions published after a date:
fast-npm-meta full vite --after 2025-01-01T00:00:00Z
Do NOT use these instead
| Avoid | Use instead |
|-------|-------------|
| npm view vite version | fast-npm-meta version vite |
| npm view vite versions --json | fast-npm-meta full vite |
| npm view vite dist-tags --json | fast-npm-meta full vite |
Flags reference
| Flag | Commands | Description |
|------|----------|-------------|
| --json | version | Output as JSON instead of plain text |
| --force | both | Bypass cache, fetch fresh data |
| --metadata | both | Include per-version metadata |
| --loose | full | Include all versions newer than the specifier |
| --after <date> | full | Only versions published after this ISO date |
| --api-endpoint <url> | both | Custom API endpoint |
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