Mern deps

Skill edfenton/claude-skills/mern/mern-deps

A collection of Claude Code skills for iOS, MERN, NEAN, and shared development workflows

Install

npx -y skills add edfenton/claude-skills --skill mern-deps

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Check and update dependencies safely with security audits and test verification.

SKILL.md

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Purpose

Manage dependencies safely: audit for vulnerabilities, check for updates, and update with test verification.

Arguments

--check — Check for outdated packages (default if no args)
--audit — Run security audit
--update — Update patch/minor versions with test verification
--update-major — Show available major updates (requires manual review)

Workflow

Check (`--check`)

Run pnpm outdated
Categorize: patch, minor, major
Report packages with updates available
Flag packages with known issues

Audit (`--audit`)

Run pnpm audit
Report vulnerabilities by severity (critical, high, moderate, low)
Suggest fixes for critical/high
Check for patches available

Update (`--update`)

Show packages to update (patch + minor only)
Ask for approval
Update packages: pnpm update
Run tests: pnpm test
Run build: pnpm build
If tests pass, commit changes
If tests fail, rollback and report

Major updates (`--update-major`)

List packages with major updates
Show changelogs/breaking changes (if available)
Recommend update order (dependencies first)
Do not auto-update — requires manual review

For universal safety rules and update priority order, see /shared-deps-safety.

Output

Check output

Outdated packages:

Patch updates (safe):
  - zod: 3.22.4 → 3.22.5
  - mongoose: 8.0.1 → 8.0.3

Minor updates (usually safe):
  - next: 14.1.0 → 14.2.1
  - @types/node: 20.10.0 → 20.11.0

Major updates (review required):
  - eslint: 8.56.0 → 9.0.0 ⚠️ Breaking changes

Audit output

Security audit:

Critical: 0
High: 1
  - lodash <4.17.21 (Prototype Pollution)
    Fix: pnpm update lodash
Moderate: 2
Low: 3

Run `pnpm audit fix` to auto-fix where possible.

Reference

For update strategies and common issues, see reference/mern-deps-reference.md