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nestjs-enterprise-backend

nestjs-enterprise-backend is a skill for Claude Code from vaquarkhan/Fullstack-development-agent-skills. It costs 50 tokens per session (538 once invoked), scanned A, original, MIT.

A set of patterns for building NestJS backends, a TypeScript framework for structured server applications. It covers modules, request validation, authentication, database transactions, API documentation, and tests.

In plain words
What is it for?
Use it to organize features, validate requests, protect routes, connect TypeORM or Prisma databases, define transactions, document APIs, and test HTTP behavior.
Why use it?
It helps prevent disorganized server code, invalid input, weak access control, leaked secrets, unsafe database changes, and missing end-to-end checks.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the fullstack-development-agent-skills plugin — 129 skills, 10 commands shipped together

not rated 3repo 2mo ago A scan 50 tokens original MIT

Good fit Use it to organize features, validate requests, protect routes, connect TypeORM or Prisma databases, define transactions, document APIs, and test HTTP behavior.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vaquarkhan/fullstack-development-agent-skills/nestjs-enterprise-backend
View source ↗ vaquarkhan/Fullstack-development-agent-skills
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add vaquarkhan/Fullstack-development-agent-skills --skill nestjs-enterprise-backend
Clone the repo
git clone --depth 1 https://github.com/vaquarkhan/Fullstack-development-agent-skills

Made for: Claude Code.

Or install fullstack-development-agent-skills, the plugin that ships this one along with the rest of its 129 skills, 10 commands.

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 nestjs-enterprise-backend

README.md
[![agentmods](https://agentmods.dev/badge/skills/vaquarkhan/fullstack-development-agent-skills/nestjs-enterprise-backend/github.svg)](https://agentmods.dev/skills/vaquarkhan/fullstack-development-agent-skills/nestjs-enterprise-backend)
Your own site
<a href="https://agentmods.dev/skills/vaquarkhan/fullstack-development-agent-skills/nestjs-enterprise-backend"><img src="https://agentmods.dev/badge/skills/vaquarkhan/fullstack-development-agent-skills/nestjs-enterprise-backend/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 nestjs-enterprise-backend

Your own site · 80×15
<a href="https://agentmods.dev/skills/vaquarkhan/fullstack-development-agent-skills/nestjs-enterprise-backend"><img src="https://agentmods.dev/badge/skills/vaquarkhan/fullstack-development-agent-skills/nestjs-enterprise-backend.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 538 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00050 $0.00538
Opus 5.5 $0.00020 $0.00215
Sonnet 5.5 $0.00010 $0.00108
Haiku 4.5 $0.00005 $0.00054

Measured 2mo ago against content hash 86ba9ff3a389, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nestjs-enterprise-backend scanned grade A with 0 findings 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 2mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (examples/bad-example.ts, examples/good-example.ts, templates/create-order.dto.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skill-packs/typescript/nestjs/nestjs-enterprise-backend/SKILL.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NestJS Enterprise Backend

Use When

  • Implementing production NestJS APIs with modular domain boundaries
  • Wiring auth guards, validation pipes, interceptors, and OpenAPI in NestJS
  • Teams need NestJS-specific patterns beyond skills/nodejs-nestjs-backend-microservices

Workflow

  1. Organize feature modules (controller, service, repository/DTO) per domain.
  2. Define DTOs with class-validator; enable global ValidationPipe with whitelist.
  3. Add guards for JWT/API keys; policies via custom decorators or CASL.
  4. Configure TypeORM/Prisma with migrations and transaction boundaries in services.
  5. Document OpenAPI via @ApiTags and generate client SDKs for frontend consumers.
  6. Test with @nestjs/testing unit tests and supertest e2e with test DB.

Required Checks

  • ValidationPipe forbids unknown properties (whitelist + forbidNonWhitelisted)
  • Services own transactions; controllers stay thin
  • ConfigModule loads secrets from env — no secrets in source
  • E2E tests cover auth failure and validation error envelopes

Examples And Templates

See examples/ for side-by-side good vs bad patterns agents commonly get wrong. See templates/ for copy-paste starters aligned with this skill.

Decision Framework

  • Prefer feature modules over god AppModule imports.
  • Use CQRS (@nestjs/cqrs) only when read/write models genuinely diverge.
  • Cache with explicit TTL and invalidation keys — not ad-hoc Map in service.
  • Bull/BullMQ for durable jobs; @Cron only for lightweight schedulers.

Common Rationalizations And Rebuttals

  • "DTOs are optional with TypeScript." -> Runtime validation catches bad clients; use DTOs at boundary.
  • "Prisma in controller is faster." -> Leaks persistence; breaks testing and module boundaries.
  • "Global exception filter later." -> Inconsistent error shapes break API consumers early.

Evidence Pack

  • OpenAPI diff for changed endpoints
  • E2E test output for auth and validation matrix
  • Module dependency graph (no circular imports)
  • Migration script with rollback note

Read the full file on GitHub · 61 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2mo ago First seen · 61 lines · 50 tokens per session scan A 86ba9ff3a389

Subscribe to this mod's changes

nestjs-enterprise-backend is a skill published in the GitHub repository vaquarkhan/Fullstack-development-agent-skills (3 stars, last pushed 2mo ago), licensed MIT. It adds 50 tokens to every session and 538 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-07.

Backend and APIsLanguagesTypeScriptangularfull-stackjava-scriptsmicroservices
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