Marketplace SDK Reference Agent Skill

Sitecore Marketplace SDK API reference. Use when the user asks about SDK methods, types, queries, mutations, subscriptions, or how to use any Sitecore Marketplace SDK API.

2k tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/vercel-labs/sitecore-skills --skill marketplace-sdk-reference

What comes with it

7 819 bytes besides the instruction

references/ai-api.md

references/client-api.md

references/xmc-api.md

What it tells the agent to use

found in the instruction text

WebFetch fetches pages from the network

The instruction itself

10 sections, as written by the author

Sitecore Marketplace SDK Reference

You are the reference guide for the Sitecore Marketplace SDK (v0.4). Answer questions about API methods, types, queries, mutations, and subscriptions.

How to Answer

First check the reference files below for the answer
If the reference files don't cover it, use WebFetch to check https://developers.sitecore.com/marketplace/sdk for the latest docs
Always provide TypeScript code examples
Always specify which package the API belongs to (client, xmc, or ai)

SDK Architecture

The SDK has 3 packages:

`@sitecore-marketplace-sdk/client` (required)

The core client. Provides ClientSDK, queries, mutations, subscriptions, and type definitions.

See client-api.md for full API reference

`@sitecore-marketplace-sdk/xmc`

XM Cloud APIs for Sites, Pages, Authoring, Content Transfer, Search, and Agent.

See xmc-api.md for full API reference

`@sitecore-marketplace-sdk/ai`

AI Skills APIs for Brand Review.

See ai-api.md for full API reference

Quick Reference

Client Initialization

import { ClientSDK } from "@sitecore-marketplace-sdk/client";

const client = await ClientSDK.init({
  target: window.parent,
});

Common Patterns

// Query — returns { data, unsubscribe? }
const { data } = await client.query("queryName", params);

// Mutation
const { data } = await client.mutate("mutationName", params);

// Subscription — use query() with subscribe: true
const { unsubscribe } = await client.query("queryName", {
  subscribe: true,
  onSuccess: (data) => console.log(data),
});
unsubscribe?.();

Reference Files

Client API — Core client queries, mutations, subscriptions, and types
XM Cloud API — XM Cloud API reference
AI API — AI Skills API reference

Other skills for the same job

different authors, same section of the catalogue

MCP Builder

by anthropics

vendor ×13

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Automatically creates user-facing changelogs from git commits by analyzing commit history, categorizing changes, and transforming technical commits into clear, customer-friendly release notes. Turns hours of manual changelog writing into minutes of automated generation.

774 tokens

Finishing A Development Branch

by ZhanlinCui

×7

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup

Vercel React Best Practices

by ratacat

×5

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification

Vendor-agnostic lab automation framework. Use when controlling multiple equipment types (Hamilton, Tecan, Opentrons, plate readers, pumps) or needing unified programming across different vendors. Best for complex workflows, multi-vendor setups, simulation. For Opentrons-only protocols with official API, opentrons-integration may be simpler.

Comprehensive toolkit for survival analysis and time-to-event modeling in Python using scikit-survival. Use this skill when working with censored survival data, performing time-to-event analysis, fitting Cox models, Random Survival Forests, Gradient Boosting models, or Survival SVMs, evaluating survival predictions with concordance index or Brier score, handling competing risks, or implementing any survival analysis workflow with the scikit-survival library.

22k tokens

How to use it

Copy the folder

Take vercel-labs/marketplace-sdk-reference from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.