migrate-to-nextjs15

migrate-to-nextjs15 is a command for Claude Code from LarouexNonprofitConsulting/larouex-fullstack-plugin. It costs 0 tokens per session (108 once invoked), scanned A, original, MIT.

A migration command for upgrading a Next.js project to version 15 and React 19. It updates application patterns, configuration, routes, and types for the newer versions.

In plain words
What is it for?
Use it to update dependencies and Next.js App Router code, fix breaking changes, resolve TypeScript errors, test the build and development server, and document the migration.
Why use it?
Major framework upgrades can break configuration, middleware, API routes, metadata, or compilation, leaving the project unable to build or run correctly.

Command for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the larouex-fullstack-builder plugin — 80 commands shipped together

Good fit Use it to update dependencies and Next.js App Router code, fix breaking changes, resolve TypeScript errors, test the build and development server, and document the migration.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/larouexnonprofitconsulting/larouex-fullstack-plugin/migrate-to-nextjs15
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/LarouexNonprofitConsulting/larouex-fullstack-plugin

Made for: Claude Code.

Or install larouex-fullstack-builder, the plugin that ships this one along with the rest of its 80 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for migrate-to-nextjs15

README.md
[![agentmods](https://agentmods.dev/badge/commands/larouexnonprofitconsulting/larouex-fullstack-plugin/migrate-to-nextjs15/github.svg)](https://agentmods.dev/commands/larouexnonprofitconsulting/larouex-fullstack-plugin/migrate-to-nextjs15)
Your own site
<a href="https://agentmods.dev/commands/larouexnonprofitconsulting/larouex-fullstack-plugin/migrate-to-nextjs15"><img src="https://agentmods.dev/badge/commands/larouexnonprofitconsulting/larouex-fullstack-plugin/migrate-to-nextjs15/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for migrate-to-nextjs15

Your own site · 80×15
<a href="https://agentmods.dev/commands/larouexnonprofitconsulting/larouex-fullstack-plugin/migrate-to-nextjs15"><img src="https://agentmods.dev/badge/commands/larouexnonprofitconsulting/larouex-fullstack-plugin/migrate-to-nextjs15.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 108 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00108
Opus 5 $0.00000 $0.00054
Sonnet 5 $0.00000 $0.00022
Haiku 4.5 $0.00000 $0.00011

Measured 5d ago against content hash 3e0eb220824c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

migrate-to-nextjs15 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

commands/migrate-to-nextjs15.md · 2 lines

What it actually says

Upgrade this Next.js project to version 15. Update package.json dependencies to Next.js 15 and React 19. Migrate App Router patterns and update metadata API usage following latest conventions. Fix breaking changes in configuration, middleware, and API routes. Update next.config.ts with new configuration options. Test the build process and development server. Update TypeScript types and resolve compilation errors. Document migration steps and breaking changes. Reference frontend-development-agent for React/Next.js expertise. Ensure all pages, components, and API routes work correctly after upgrade.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 2 lines · 0 tokens per session scan A 3e0eb220824c

Subscribe to this mod's changes

migrate-to-nextjs15 is a command published in the GitHub repository LarouexNonprofitConsulting/larouex-fullstack-plugin (8 stars, last pushed 11mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 108 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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