nextjs-stack

nextjs-stack is a skill for Claude Code, Codex from san-npm/skills-ws. It costs 86 tokens per session (479 once invoked), scanned A, original, MIT.

A technical blueprint for building full-stack SaaS applications with Next.js, React, a database, authentication, payments, deployment, and error monitoring. SaaS means software delivered as an online service.

In plain words
What is it for?
Use it when starting or reviewing a SaaS project, deciding on its application, database, login, payment, deployment, and monitoring layers, or planning its tests and CI.
Why use it?
It helps developers choose how the main parts of an online application fit together and highlights places where security or serverless deployment can cause problems.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/san-npm/skills-ws/nextjs-stack
Any agent
npx skills add san-npm/skills-ws --skill nextjs-stack
Clone the repo
git clone --depth 1 https://github.com/san-npm/skills-ws

Made for: Claude Code, Codex.

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 nextjs-stack

README.md
[![agentmods](https://agentmods.dev/badge/skills/san-npm/skills-ws/nextjs-stack.svg)](https://agentmods.dev/skills/san-npm/skills-ws/nextjs-stack)
Your own site
<a href="https://agentmods.dev/skills/san-npm/skills-ws/nextjs-stack"><img src="https://agentmods.dev/badge/skills/san-npm/skills-ws/nextjs-stack.svg" alt="Measured on agentmods" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 479 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00086 $0.00479
Opus 5 $0.00043 $0.00239
Sonnet 5 $0.00017 $0.00096
Haiku 4.5 $0.00009 $0.00048

Measured 5d ago against content hash 99cc466b46e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

nextjs-stack 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.

skills/nextjs-stack/SKILL.md · 25 lines

What it actually says

Next.js Full-Stack Blueprint

This is the integration layer — how the pieces fit, where the seams leak, and the security/serverless gotchas. For deep single-domain work, lean on the sibling skills: stripe-billing (Checkout/portal/webhook lifecycle), auth-implementation (sessions, RBAC, OAuth), postgres-mastery (schema/indexing/pooling), and api-design (REST/route-handler contracts).

Reference guide

Read only the references needed for the current request:

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 · 25 lines · 86 tokens per session scan A 99cc466b46e8

Subscribe to this mod's changes

nextjs-stack is a skill published in the GitHub repository san-npm/skills-ws (2 stars, last pushed 19d ago), licensed MIT. It adds 86 tokens to every session and 479 once invoked, about $0.0004 per session on Opus 5. 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 2026-08-31.

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