Npm 12 Migration

Q: What is a Claude Code skill and how does the Npm 12 Migration skill fit in?

A Claude Code skill is a 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. Npm 12 Migration is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Dev Tools · Sub-category: package-mgmt · Last updated: 2026-07-31

Migrates npm-managed repositories from npm 11 or older to npm 12 with lifecycle-script allowlisting, Node and CI alignment, config and lockfile review, breaking-output fixes, and full validation. Use when explicitly invoked for an npm 12 upgrade, migration audit, or allowScripts rollout.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Treat this as a toolchain and supply-chain migration, not a version-string edit. Preserve repository conventions and the user's requested mode: audit-only requests stay read-only; implementation requests include the migration and proportional validation.

What this skill does

Npm 12 Migration is a community-contributed Claude Code skill in the package-mgmt sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/npm-12-migration/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when explicitly invoked for an npm 12 upgrade, migration audit, or allowScripts rollout.

Who uses this skill

The Npm 12 Migration Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 191,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/npm-12-migration
curl -L https://claudskills.com/skills/npm-12-migration/SKILL.md \
  -o ~/.claude/skills/npm-12-migration/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/npm-12-migration/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/npm-12-migration/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\npm-12-migration\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Npm 12 Migration Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/npm-12-migration/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Npm 12 Migration skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Npm 12 Migration skill?

Use Npm 12 Migration when your Claude Code task falls under the Dev Tools category — specifically in the package mgmt area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Npm 12 Migration" or describe the task and let Claude pick). Browse related skills at /category/tools/.

What is a Claude Code skill and how does the Npm 12 Migration skill fit in?

A Claude Code skill is a 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. Npm 12 Migration is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/Nick2bad4u/codex-skills/blob/HEAD/skills/npm-12-migration/SKILL.md
Author: Nick2bad4u
Website: https://www.npmjs.com/package/@nick2bad4u/codex-skills

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

Nick2bad4u. (2026). Npm 12 Migration [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/npm-12-migration/

BibTeX

@misc{npm-12-migration-2026,
  author    = {Nick2bad4u},
  title     = {Npm 12 Migration [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/npm-12-migration/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/npm-12-migration.svg)](https://claudskills.com/skills/npm-12-migration/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-25 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/npm-12-migration/#security)

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