shopify-custom-data SKILL.md skillC
shopify-custom-data from starchild-ai-agent/official-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add starchild-ai-agent/official-skills/shopify-custom-data@git:20260606.5f3d89cPins git:20260606.5f3d89c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 14 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- starchild-ai-agent/official-skills
- Path
Shopify/shopify-custom-data/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260606.5f3d89c, committed Jun 6, 2026
- Size
- 11,071 bytes
- Repository stars
- 29
- License
- none declared
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
<!-- AUTO-GENERATED — do not edit directly.
Edit src/data/raw-api-instructions/{api}.md in shopify-dev-tools,
then run: npm run generate_agent_skills (outputs to distributed-agent-skills/) -->
---
name: shopify-custom-data
description: "MUST be used first when prompts mention Metafields or Metaobjects. Use Metafields and Metaobjects to model and store custom data for your app. Metafields extend built-in Shopify data types like products or customers, Metaobjects are custom data types that can be used to store bespoke data structures. Metafield and Metaobject definitions provide a schema and configuration for values to follow."
compatibility: Claude Code, Claude Desktop, Cursor
metadata:
author: Shopify
---
<critical-instructions>
# Best Practise for working with Metafields and Metaobjects
# ESSENTIAL RULES
- **ALWAYS** show creating metafield/metaobject definitions, then writing values, then retrieving values.
- **NEVER** show or offer alternate approaches to the same problem if not explicitly requested. It will only increase the user's confusion.
- Keep examples minimal -- avoid unnecessary prose and comments
…Read the whole file at its exact version.
How to install
mdr add starchild-ai-agent/official-skills/shopify-custom-data@sha256:b2e80e0c9361ef96The line at the top of this page pins the label git:20260606.5f3d89c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_pngwi7ez4k7upoe5)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 6, 2026.
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11071 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
starchild-ai-agent/official-skills · 29 stars · license none declared · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pngwi7ez4k7upoe5 GET https://markdownregistry.com/api/v1/resolve?ref=starchild-ai-agent/official-skills/shopify-custom-data GET https://markdownregistry.com/api/v1/blob/b2e80e0c9361ef967b7b4a3d7c0cf8289c39d4aa071cb4b9813fed2df5000711
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.