nextjs-upgrade-assistant SKILL.md skillA

nextjs-upgrade-assistant from frankxai/claude-skills-library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add frankxai/claude-skills-library/nextjs-upgrade-assistant@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
frankxai/claude-skills-library
Path
free-skills/nextjs-upgrade-assistant/SKILL.md
Versions recorded
3
Latest version
v1.0.0, committed Jun 8, 2026
First version recorded
May 25, 2026
Size
5,981 bytes
Repository stars
47
License
MIT

Guided Next.js upgrade workflow — version migration, compatibility checks, and safe rollout. Use when upgrading Next.js across major versions, resolving breaking changes, or planning a staged migration.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Next.js Upgrade Assistant

**Version:** 1.0 (Next.js 15 → 16)
**Author:** FrankX AI Systems
**Last Updated:** 2025-10-24

## Overview

Automated assistant for upgrading Next.js projects to version 16, with comprehensive migration support and MCP-powered guidance.

## Pre-Upgrade Checklist

Before starting the upgrade, verify:

- [ ] Project uses Git (for easy rollback)
- [ ] All changes are committed
- [ ] Tests are passing
- [ ] Dependencies are up to date (except Next.js)
- [ ] Node.js version is 18.18.0 or higher
- [ ] Backup of production database (if applicable)

## Reference

The full detail lives in `references/` and loads only when needed:

- [`references/upgrade-process.md`](references/upgrade-process.md) — the full Next.js 16 upgrade process.

---

## Automated Migration with Codemods

Next.js provides codemods for automated migration:

```bash
# Run Next.js codemods via next-devtools-mcp
npx @next/codemod upgrade

# Specific transformations
npx @next/codemod built-in-next-font .
npx @next/codemod new-link .
npx @next/codemod next-image-to-legacy-image .
```

**Query next-devtools-mcp for migration help:**
- Ask about specific migration patterns
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add frankxai/claude-skills-library/nextjs-upgrade-assistant@sha256:fa3eeb1fffe4ecb2

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_nqflqkrkezphyqwh.svg)](https://markdownregistry.com/a/art_nqflqkrkezphyqwh)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between May 25, 2026 and Jun 8, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-06-08 5e17d21 5,981 BA view · diff
v1.0.02026-06-08 07e270e 12,604 BA view · diff
v1.0.02026-05-25 468c26e 12,501 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5981 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

frankxai/claude-skills-library · 47 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_nqflqkrkezphyqwh
GET https://markdownregistry.com/api/v1/resolve?ref=frankxai/claude-skills-library/nextjs-upgrade-assistant
GET https://markdownregistry.com/api/v1/blob/fa3eeb1fffe4ecb260ac600d8ea559fc23287e7967bcc8a32e009bd94af38924

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from frankxai/claude-skills-library

excellence-review SKILL.md skill
frankxai/claude-skills-library · .grok/skills/excellence-review/SKILL.md · Mandatory excellence gates for Grok+ACOS. verification-loop, santa-method, gstack-qa, plan-reviews, repo-mastery, cso…
git:20260820.5d4ee7a · audit A · 47 stars
harness-integration SKILL.md skill
frankxai/claude-skills-library · .grok/skills/harness-integration/SKILL.md · ACOS Grok bridge. SessionStart loads repo-mastery + excellence gates. PreToolUse enforces rules read + suggests harness…
git:20261014.6571e8d · audit A · 47 stars
multi-harness-orchestrator SKILL.md skill
frankxai/claude-skills-library · .grok/skills/multi-harness-orchestrator/SKILL.md · Automatically detect tasks suited for delegation to other agent harnesses (Claude Code as canonical, agy/antigravity…
git:20260820.5d4ee7a · audit A · 47 stars
repo-mastery SKILL.md skill
frankxai/claude-skills-library · .grok/skills/repo-mastery/SKILL.md · Master ACOS, FrankX, Starlight-Intelligence-System, arcanea, claude-code-config and full starlight/repos ecosystem…
git:20261014.6571e8d · audit A · 47 stars
AGENTS.md AGENTS.md file
frankxai/claude-skills-library · AGENTS.md
git:20261014.6571e8d · audit F · 47 stars
agent-harness-construction SKILL.md skill
frankxai/claude-skills-library · absorbed/harness/agent-harness-construction/SKILL.md · Shape an agent's tools, observations, and recovery without adding a second coordinator. Use when defining a tool, a…
git:20261010.682b2ce · audit A · 47 stars
context-budget SKILL.md skill
frankxai/claude-skills-library · absorbed/harness/context-budget/SKILL.md · Count what a session loads before adding another skill or MCP server. Use when the default prompt is heavy, a new…
git:20261010.682b2ce · audit A · 47 stars
cost-aware-llm-pipeline SKILL.md skill
frankxai/claude-skills-library · absorbed/harness/cost-aware-llm-pipeline/SKILL.md · Pick the smallest model that can finish the task, and record the class of work. Use when routing a search, a multi-file…
git:20261010.682b2ce · audit A · 47 stars
santa-method SKILL.md skill
frankxai/claude-skills-library · absorbed/harness/santa-method/SKILL.md · Send a finished change to two reviewers who did not write it, using one rubric, and stop after three rounds. Use before…
git:20261011.854bb48 · audit A · 47 stars
search-first SKILL.md skill
frankxai/claude-skills-library · absorbed/harness/search-first/SKILL.md · Look for an existing repo, package, and skill before writing a new one. Use when starting a feature, adding a…
git:20261010.682b2ce · audit A · 47 stars
security-review SKILL.md skill
frankxai/claude-skills-library · absorbed/harness/security-review/SKILL.md · Scan a port or a diff before it lands, and apply the narrow deny list for this machine. Use before copying upstream…
git:20261010.682b2ce · audit A · 47 stars
strategic-compact SKILL.md skill
frankxai/claude-skills-library · absorbed/harness/strategic-compact/SKILL.md · Write what worked, what failed, and what is still open to a file, then compact at a phase boundary. Use when a long…
git:20261010.682b2ce · audit A · 47 stars

Every file in frankxai/claude-skills-library

Other files named nextjs-upgrade-assistant

nextjs-upgrade-assistant SKILL.md skill
frankxai/agentic-creator-os · .claude/skills/nextjs-upgrade-assistant/SKILL.md
git:20260124.0bc6f23 · audit C · 12 stars

Browse by kind, by grade A, or by owner.