Tiny utility (zero deps) that converts between millisecond numbers and human-readable time strings.
Vercel Ms is a community-contributed Claude Code skill in the cloud-platforms sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/vercel-ms/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when working with the `ms` package (vercel/ms) for converting between millisecond numbers and human-readable time strings. Trigger when the user imports `ms`, writes timeout/delay/duration values, needs to parse strings like '2 days' or '1h' to milliseconds, or format a number of milliseconds into a readable string.
The Vercel Ms Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/vercel-ms curl -L https://claudskills.com/skills/vercel-ms/SKILL.md \ -o ~/.claude/skills/vercel-ms/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/vercel-ms/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/vercel-ms/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\vercel-ms\SKILL.md on Windows. See the full install guide for step-by-step instructions.
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SKILL.md from the source repository to ~/.claude/skills/vercel-ms/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Vercel Ms is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{vercel-ms-2026,
author = {ClaudSkills},
title = {Vercel Ms [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/vercel-ms/}
}Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.