sitecore-classic

sitecore-classic is a skill for Claude Code from smithdak/claude-marketplace. It costs 28 tokens per session (3,083 once invoked), scanned A, original, MIT.

A collection of coding guidance for Sitecore 10.x projects, including Helix architecture, MVC renderings, Razor views, JavaScript, and C#/.NET services. Sitecore is a platform for managing website content and applications.

In plain words
What is it for?
Use it when working on Sitecore projects, including frontend code, Razor templates, backend C# services, forms, search, checkout, and other site features.
Why use it?
It helps an agent follow Sitecore-specific structure and conventions rather than applying generic web-development patterns that may not fit the project.

Skill for Claude Code

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

Part of the sitecore-classic plugin — 3 skills, 1 agent shipped together

Good fit Use it when working on Sitecore projects, including frontend code, Razor templates, backend C# services, forms, search, checkout, and other site features.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/smithdak/claude-marketplace/sitecore-classic
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.

Any agent
npx skills add smithdak/claude-marketplace --skill sitecore-classic
Clone the repo
git clone --depth 1 https://github.com/smithdak/claude-marketplace

Made for: Claude Code.

Or install sitecore-classic, the plugin that ships this one along with the rest of its 3 skills, 1 agent.

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 sitecore-classic

README.md
[![agentmods](https://agentmods.dev/badge/skills/smithdak/claude-marketplace/sitecore-classic/github.svg)](https://agentmods.dev/skills/smithdak/claude-marketplace/sitecore-classic)
Your own site
<a href="https://agentmods.dev/skills/smithdak/claude-marketplace/sitecore-classic"><img src="https://agentmods.dev/badge/skills/smithdak/claude-marketplace/sitecore-classic/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 sitecore-classic

Your own site · 80×15
<a href="https://agentmods.dev/skills/smithdak/claude-marketplace/sitecore-classic"><img src="https://agentmods.dev/badge/skills/smithdak/claude-marketplace/sitecore-classic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,083 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 $0.00028 $0.03083
Opus 5 $0.00014 $0.01541
Sonnet 5 $0.00006 $0.00617
Haiku 4.5 $0.00003 $0.00308

Measured 11d ago against content hash bfbe09647d6f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

sitecore-classic 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 11d 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.

plugins/sitecore-classic-analyzer/skills/sitecore-classic/SKILL.md · 530 lines

How it starts

The opening of the file, as written. The whole thing — 530 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bundled Skills

This plugin includes the following additional skills for comprehensive development context:

Skill Purpose
frontend-classic CSS/SASS organization, JavaScript/jQuery patterns, BEM naming
frontend-razor Razor view syntax, layouts, partials, tag helpers
backend-csharp C#/.NET DI patterns, service architecture, async/await
fullstack-classic jQuery AJAX integration, form handling, anti-forgery tokens

These skills are automatically included when you install the Sitecore Classic Analyzer plugin.

Sitecore 10.x Development Patterns

Helix Architecture

Layer Responsibilities

Foundation Layer

  • Cross-cutting concerns shared across features
  • Examples: Logging, Serialization, DI registration, Indexing, ORM
  • No business logic, only technical infrastructure
  • Can reference other Foundation modules

Feature Layer

  • Business capabilities and features
  • Examples: Navigation, Search, Forms, Checkout, Articles
  • Each feature is independent and self-contained
  • Can reference Foundation modules only
  • NEVER reference other Feature modules

Project Layer

  • Tenant/site-specific implementations
  • Examples: Website, Corporate, MobileApp
  • Assembles features for specific sites
  • Can reference Feature and Foundation modules

Dependency Rule

Project → Feature → Foundation

Features must NEVER reference other Features. If shared logic is needed, extract to Foundation.

Folder Structure

src/
├── Foundation/
│   └── {Module}/
│       ├── code/
│       │   ├── DependencyInjection/
│       │   ├── Services/
│       │   └── Foundation.{Module}.csproj
│       └── serialization/
│           └── {Module}.module.json
├── Feature/
│   └── {Module}/
│       ├── code/
│       │   ├── Controllers/
│       │   ├── Models/
│       │   ├── Services/
│       │   ├── Repositories/
│       │   └── Feature.{Module}.csproj
│       └── serialization/
│           ├── Templates/
│           ├── Renderings/
│           └── {Module}.module.json
└── Project/
    └── {Site}/
        ├── code/
        │   ├── Layouts/
        │   └── Project.{Site}.csproj
        └── serialization/
            ├── Content/
            └── {Site}.module.json

Read the full file on GitHub · 530 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. 11d ago First seen · 530 lines · 28 tokens per session scan A bfbe09647d6f

Subscribe to this mod's changes

sitecore-classic is a skill published in the GitHub repository smithdak/claude-marketplace (3 stars, last pushed 7mo ago), licensed MIT. It adds 28 tokens to every session and 3,083 once invoked, about $0.0001 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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