nestjs SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
nestjs from alexander-danilenko/cortex-ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add alexander-danilenko/cortex-ai-skills/nestjs@git:20261013.ecfffa1Pins git:20261013.ecfffa1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- alexander-danilenko/cortex-ai-skills
- Path
plugins/engineering/cortex-web/skills/nestjs/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261013.ecfffa1, committed Oct 13, 2026
- Size
- 6,086 bytes
- Repository stars
- 17
- License
- MIT
Opinionated house conventions for NestJS backends — module boundaries and layering, provider wiring and injection scopes, guards/interceptors/pipes/filters, DTOs and validation, domain exceptions, config, and the Nest 11 / Express 5 behaviour that compiles cleanly and fails at runtime. Use whenever the code is NestJS (`@nestjs/*` in package.json, or `@Module`/`@Injectable`/`@Controller`/`@Cron` in the file), including when the question sounds like plain TypeScript, an OOP refactor, a code…
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
# NestJS House conventions for NestJS backends on v11 / Express 5. Apply them to code you are writing or changing — don't restructure untouched modules unless asked. Examples throughout use an invented shipment domain purely to make the shape concrete. Read the structure, not the names. ## Layering Two layers, and the dependency arrow points one way only. ```text core/ domain + infrastructure. No controllers, no HTTP. → core only app/ features. Controllers, DTOs, guards, middleware, CQRS. → app + core ``` A core module that needs to reach into a feature is telling you the concept it owns sits in the wrong layer — move the concept down rather than importing upward. Keeping the arrow honest is what lets a core module be driven by an HTTP request, a cron job, a CLI, or a queue consumer without dragging a controller along. ## Always apply These hold for nearly every change, so they live here rather than behind a reference: - **A module owns one domain, and its root barrel exports only the `.module.ts`.** A provider that isn't exported can be refactored freely; one that is becomes public API. …
Read the whole file at its exact version.
How to install
mdr add alexander-danilenko/cortex-ai-skills/nestjs@sha256:e49cceebc2fdd132The line at the top of this page pins the label git:20261013.ecfffa1, 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_2cfet5l4sr4i7qr3)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 13, 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 (6086 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
alexander-danilenko/cortex-ai-skills · 17 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2cfet5l4sr4i7qr3 GET https://markdownregistry.com/api/v1/resolve?ref=alexander-danilenko/cortex-ai-skills/nestjs GET https://markdownregistry.com/api/v1/blob/e49cceebc2fdd132d1cb72db3645efb4b85082e67ed3f6ed419de87b06edbae3
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.
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