sdcorejs-nextjs

sdcorejs-nextjs is a skill for Claude Code from sdcorejs/sdcorejs-agent. It costs 97 tokens per session (4,326 once invoked), scanned A, original, MIT.

A Next.js website coding skill for implementing approved pages, sections, and website features after requirements and scope have been confirmed. Next.js is a framework for building web applications with JavaScript or TypeScript.

In plain words
What is it for?
Use it to build approved website work such as themes, pages, search-engine metadata, translations, caching, responsive layouts, contact features, analytics, content management, or content improvements.
Why use it?
It keeps code generation tied to an approved plan and prevents implementation from starting when requirements are missing or the scope has changed.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; names the AskUserQuestion tool; mentions AGENTS.md.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is sdcorejs-documentation (code-documentation mode) - automatic source-code documentation for touched source files; no approval ASK; rules in ../../_refs/documenta.

Good fit Use it to build approved website work such as themes, pages, search-engine metadata, translations, caching, responsive layouts, contact features, analytics, content management, or content improvements.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/sdcorejs/sdcorejs-agent
agentmods
npx agentmods add skills/sdcorejs/sdcorejs-agent/sdcorejs-nextjs

Made for: Claude Code.

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 sdcorejs-nextjs

README.md
[![agentmods](https://agentmods.dev/badge/skills/sdcorejs/sdcorejs-agent/sdcorejs-nextjs/github.svg)](https://agentmods.dev/skills/sdcorejs/sdcorejs-agent/sdcorejs-nextjs)
Your own site
<a href="https://agentmods.dev/skills/sdcorejs/sdcorejs-agent/sdcorejs-nextjs"><img src="https://agentmods.dev/badge/skills/sdcorejs/sdcorejs-agent/sdcorejs-nextjs/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 sdcorejs-nextjs

Your own site · 80×15
<a href="https://agentmods.dev/skills/sdcorejs/sdcorejs-agent/sdcorejs-nextjs"><img src="https://agentmods.dev/badge/skills/sdcorejs/sdcorejs-agent/sdcorejs-nextjs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 97 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,326 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 $0.00097 $0.04326
Opus 5.5 $0.00039 $0.01730
Sonnet 5.5 $0.00019 $0.00865
Haiku 4.5 $0.00010 $0.00433

Measured 16d ago against content hash b84b9300b6c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sdcorejs-nextjs 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 16d 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.

.claude/skills/sdcorejs-nextjs/SKILL.md · 263 lines

How it starts

The opening of the file, as written. The whole thing — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Path resolution: Resolve ../../_refs/... relative to this SKILL.md. Resolve another SDCoreJS skill by opening the sibling folder ../<skill-name>/SKILL.md.

Build Website — Write Code Orchestrator

For unresolved visual decisions, apply ../../_refs/sdlc/visual-offer-policy.md; forward requirement_context.visual_companion through context.pass (portable state_delta.visual_companion) to the owning workflow.

Shared Protocols

Read ../../_refs/shared/runtime-protocols.md and ../../_refs/shared/artifact-lifecycle.md; merge producer artifact_context through the finishing tail.

Purpose

Single entry point for generating approved Next.js website code. This skill is the dispatch layer between an approved plan from sdcorejs-execute-plan and the focused REFERENCE PACKS that hold the per-concern generation rules. It does NOT inline those rules — it reads the right pack on demand. The ten packs under ../../_refs/nextjs/build-website/write-code/ were standalone sub-skills before they were consolidated here so the track exposes one orchestrator instead of eleven.

When invoked

  • After sdcorejs-execute-plan dispatches an approved Next.js plan
  • After sdcorejs-explore (recovery mode) and the user explicitly resumes the same approved plan

Do NOT invoke if:

  • No plan exists or plan is unapproved -> go back to sdcorejs-brainstorming / sdcorejs-spec / sdcorejs-plan
  • Scope changed since plan was approved -> re-plan with sdcorejs-plan
  • The user wants to AUDIT an existing site (not generate) → sdcorejs-review

Step 0 — Read-oriented project context

Before reading the plan or dispatching, assemble read-only project_context. Use valid summary sections when available. For an existing site with a missing, legacy, unknown, or stale summary, continue with targeted reads and use a scoped code map only for unresolved cross-component relationships. Do not refresh merely because summary is absent. A brand-new approved init-site may create summary v2 after scaffolding; an architecture-level refresh belongs only to the sequential workflow or integration owner.

Read the full file on GitHub · 263 lines

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. 16d ago Changed · +2 lines b84b9300b6c0
  2. 1mo ago Changed · +9 lines 45d18cfab52b
  3. 2mo ago First seen · 252 lines · 97 tokens per session scan A 569a05309078

Subscribe to this mod's changes

sdcorejs-nextjs is a skill published in the GitHub repository sdcorejs/sdcorejs-agent (2 stars, last pushed 15d ago), licensed MIT. It adds 97 tokens to every session and 4,326 once invoked, about $0.0004 per session on Opus 5.5. 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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