node-backend SKILL.md skillA
node-backend from orcaqubits/agentic-commerce-skills-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add orcaqubits/agentic-commerce-skills-plugins/node-backend@git:20260326.769051fPins git:20260326.769051f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- orcaqubits/agentic-commerce-skills-plugins
- Path
medusa-commerce/skills/node-backend/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260326.769051f, committed Mar 26, 2026
- Size
- 8,356 bytes
- Repository stars
- 40
- License
- MIT
Build Node.js backends for Medusa v2 — Express middleware chain, MikroORM entity patterns, PostgreSQL connection pooling, async patterns, error handling, and logging. Use when working with Medusa's Node.js runtime.
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
# Node.js Backend Patterns for Medusa v2
## Before writing code
**Fetch live docs**:
1. Web-search `site:docs.medusajs.com api routes middlewares express` for middleware configuration
2. Web-search `site:mikro-orm.io docs` for MikroORM entity and query patterns
3. Web-search `site:docs.medusajs.com error handling MedusaError` for error types
4. Fetch `https://docs.medusajs.com/learn/fundamentals/api-routes` for API route conventions
5. Web-search `site:node.org docs async_hooks performance` for Node.js async best practices
## Express Middleware Chain
### Medusa Request Lifecycle
Medusa v2 is built on Express. Every HTTP request flows through a defined middleware chain:
```
Incoming Request
├── 1. CORS middleware
├── 2. Body parser (JSON)
├── 3. Cookie parser / session
├── 4. Authentication middleware
├── 5. Custom middlewares (middlewares.ts)
├── 6. Route handler (route.ts)
└── 7. Error handler
```
### Custom Middleware Registration
Define custom middleware in `src/api/middlewares.ts`:
```ts
// Fetch live docs for defineMiddlewares
// and MiddlewareRoute type signatures
import { defineMiddlewares } from "@medusajs/medusa"
```
| Middleware Property | Purpose |
…Read the whole file at its exact version.
How to install
mdr add orcaqubits/agentic-commerce-skills-plugins/node-backend@sha256:6e7b394bbc2676ffThe line at the top of this page pins the label git:20260326.769051f, 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_cpf32qwb7o6z6qd3)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 26, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8356 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
Source
orcaqubits/agentic-commerce-skills-plugins · 40 stars · license MIT · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cpf32qwb7o6z6qd3 GET https://markdownregistry.com/api/v1/resolve?ref=orcaqubits/agentic-commerce-skills-plugins/node-backend GET https://markdownregistry.com/api/v1/blob/6e7b394bbc2676ffba1d22fe0ef34ed21a5c56a6e153e98f113e198eb2dc3355
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.
More from orcaqubits/agentic-commerce-skills-plugins
Every file in orcaqubits/agentic-commerce-skills-plugins