medusa

medusa is a skill for Claude Code from alinaqi/maggy. It costs 18 tokens per session (4,036 once invoked), scanned B, original, MIT.

A development guide for building online stores with Medusa, an open-source Node.js commerce platform. It covers store modules, business workflows, API routes, and the built-in admin dashboard.

In plain words
What is it for?
Use it to scaffold a Medusa store, connect PostgreSQL, create commerce APIs, customize modules and workflows, and work with an admin dashboard.
Why use it?
It gives developers a structured way to create and customize a store backend, database, admin area, and optional storefront without starting from an empty project.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { REVIEW_MODULE } from "../../../modules/reviews";.

Good fit Use it to scaffold a Medusa store, connect PostgreSQL, create commerce APIs, customize modules and workflows, and work with an admin dashboard.

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/alinaqi/maggy
agentmods
npx agentmods add skills/alinaqi/maggy/medusa

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 medusa

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/alinaqi/maggy/medusa"><img src="https://agentmods.dev/badge/skills/alinaqi/maggy/medusa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,036 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 15 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 133
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium MCP Rug Pull · line 45
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 68
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 721
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 722
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 725
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Server-Side Request Forgery · line 545
    Code issues a request to a loopback, link-local, or private-range host. This can reach internal services not meant to be exposed and is a common SSRF pivot.
    Fix: Avoid requests to loopback/link-local/private hosts from skill code. If internal access is intended, document it and validate the target against an allowlist.
  • medium Server-Side Request Forgery · line 563
    Code issues a request to a loopback, link-local, or private-range host. This can reach internal services not meant to be exposed and is a common SSRF pivot.
    Fix: Avoid requests to loopback/link-local/private hosts from skill code. If internal access is intended, document it and validate the target against an allowlist.
  • medium Server-Side Request Forgery · line 592
    Code issues a request to a loopback, link-local, or private-range host. This can reach internal services not meant to be exposed and is a common SSRF pivot.
    Fix: Avoid requests to loopback/link-local/private hosts from skill code. If internal access is intended, document it and validate the target against an allowlist.
  • medium Server-Side Request Forgery · line 604
    Code issues a request to a loopback, link-local, or private-range host. This can reach internal services not meant to be exposed and is a common SSRF pivot.
    Fix: Avoid requests to loopback/link-local/private hosts from skill code. If internal access is intended, document it and validate the target against an allowlist.
  • medium Server-Side Request Forgery · line 614
    Code issues a request to a loopback, link-local, or private-range host. This can reach internal services not meant to be exposed and is a common SSRF pivot.
    Fix: Avoid requests to loopback/link-local/private hosts from skill code. If internal access is intended, document it and validate the target against an allowlist.
  • medium Server-Side Request Forgery · line 549
    Code issues a request to a loopback, link-local, or private-range host. This can reach internal services not meant to be exposed and is a common SSRF pivot.
    Fix: Avoid requests to loopback/link-local/private hosts from skill code. If internal access is intended, document it and validate the target against an allowlist.
  • medium Data Exfiltration · line 563
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 592
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 604
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
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 $0.00018 $0.04036
Opus 5 $0.00009 $0.02018
Sonnet 5 $0.00004 $0.00807
Haiku 4.5 $0.00002 $0.00404

Measured 8d ago against content hash 5ed8a0d9a66f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

medusa scanned grade B with 1 finding 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 8d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

const { cart } = await fetch("http://localhost:9000/store/carts", { method: "POST",
skills/medusa/SKILL.md · 767 lines

How it starts

The opening of the file, as written. The whole thing — 767 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Medusa E-Commerce Skill

For building headless e-commerce with Medusa - open-source, Node.js native, fully customizable.

Sources: Medusa Docs | API Reference | GitHub


Why Medusa

Feature Benefit
Open Source Self-host, no vendor lock-in, MIT license
Node.js Native TypeScript, familiar stack, easy to customize
Headless Any frontend (Next.js, Remix, mobile)
Modular Use only what you need, extend anything
Built-in Admin Dashboard included, customizable

Quick Start

Prerequisites

# Required
node --version  # v20+ LTS
git --version
# PostgreSQL running locally or remote

Create New Project

# Scaffold new Medusa application
npx create-medusa-app@latest my-store

# This creates:
# - Medusa backend
# - PostgreSQL database (auto-configured)
# - Admin dashboard
# - Optional: Next.js storefront

cd my-store
npm run dev

Access Points

URL Purpose
http://localhost:9000 Backend API
http://localhost:9000/app Admin dashboard
http://localhost:8000 Storefront (if installed)

Create Admin User

npx medusa user -e [email protected] -p supersecret

Project Structure

medusa-store/
├── src/
│   ├── admin/                    # Admin UI customizations
│   │   ├── widgets/              # Dashboard widgets
│   │   └── routes/               # Custom admin pages
│   ├── api/                      # Custom API routes
│   │   ├── store/                # Public storefront APIs
│   │   │   └── custom/
│   │   │       └── route.ts
│   │   └── admin/                # Admin APIs
│   │       └── custom/
│   │           └── route.ts
│   ├── jobs/                     # Scheduled tasks
│   ├── modules/                  # Custom business logic
│   ├── workflows/                # Multi-step processes
│   ├── subscribers/              # Event listeners
│   └── links/                    # Module relationships
├── .medusa/                      # Auto-generated (don't edit)
├── medusa-config.ts              # Configuration
├── package.json
└── tsconfig.json

Read the full file on GitHub · 767 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. 8d ago First seen · 767 lines · 18 tokens per session scan B 5ed8a0d9a66f

Subscribe to this mod's changes

medusa is a skill published in the GitHub repository alinaqi/maggy (707 stars, last pushed 2d ago), licensed MIT. It adds 18 tokens to every session and 4,036 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (sends data to an external url). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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