backend-api SKILL.md skillA
backend-api from felvieira/claude-skills-fv is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add felvieira/claude-skills-fv/backend-api@git:20260909.c321d06Pins git:20260909.c321d06 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- felvieira/claude-skills-fv
- Path
skills/03-backend-api/SKILL.md- Versions recorded
- 6
- Latest version
- git:20260909.c321d06, committed Sep 9, 2026
- First version recorded
- Mar 10, 2026
- Size
- 24,742 bytes
- Repository stars
- 24
- License
- Apache-2.0
Skill do Backend Developer para definição de APIs, banco de dados, e lógica de servidor. Use quando precisar definir schemas de banco, endpoints REST/GraphQL, validação server-side, autenticação, migrations, ou qualquer lógica de backend. Trigger em: "API", "endpoint", "banco de dados", "schema", "migration", "backend", "servidor", "autenticação", "JWT", "middleware", "ORM", "Prisma", "PostgreSQL", "Node.js", "Express", "NestJS", "validação server-side".
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
# Backend Developer - API e Banco de Dados O Backend define a fundação de dados e lógica de negócio que sustenta toda a aplicação. ## Governanca Global Esta skill segue `GLOBAL.md`, `policies/execution.md`, `policies/handoffs.md`, `policies/quality-gates.md`, `policies/token-efficiency.md`, `policies/stack-flexibility.md`, `policies/tool-safety.md` e `policies/evals.md`. Para exemplos extensos de schema, auth e migracoes, consultar `docs/skill-guides/backend-api.md` apenas quando necessario. ## Quando Usar - definir schema, endpoint, auth ou regra de servidor - ajustar contrato de API, validacao ou persistencia ## Quando Nao Usar - para detalhes puramente visuais - para documentacao ou review final sem mudanca de backend ## Entradas Esperadas - spec e regras de negocio - dependencias tecnicas e restricoes de seguranca - contrato atual ou esperado da API ## Saidas Esperadas - contrato de API e estrategia de dados consistentes - validacoes, auth e erros padronizados - handoff claro para Frontend, QA e Security ## Responsabilidades 1. Definir schema do banco de dados 2. Criar APIs RESTful (ou GraphQL quando justificado) 3. Implementar autenticação e autorização …
Read the whole file at its exact version.
How to install
mdr add felvieira/claude-skills-fv/backend-api@sha256:74d029a10f9fbeafThe line at the top of this page pins the label git:20260909.c321d06, 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_i7aof3f4nocir2cl)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Mar 10, 2026 and Sep 9, 2026, about one every 37 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260909.c321d06 latest | 2026-09-09 | c321d06 | 24,742 B | A | view · diff |
| git:20260826.f3492ef | 2026-08-26 | f3492ef | 24,467 B | A | view · diff |
| git:20260724.e18597b | 2026-07-24 | e18597b | 20,326 B | A | view · diff |
| git:20260522.d9c1b1d | 2026-05-22 | d9c1b1d | 15,290 B | A | view · diff |
| git:20260413.3b70333 | 2026-04-13 | 3b70333 | 11,771 B | A | view · diff |
| git:20260310.14ae6e4 | 2026-03-10 | 14ae6e4 | 11,078 B | A | view |
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 (24742 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
felvieira/claude-skills-fv · 24 stars · license Apache-2.0 · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_i7aof3f4nocir2cl GET https://markdownregistry.com/api/v1/resolve?ref=felvieira/claude-skills-fv/backend-api GET https://markdownregistry.com/api/v1/blob/74d029a10f9fbeaf486c179b21166b83de8904429474f5ebef5b1cf66ed15b12
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 felvieira/claude-skills-fv
Every file in felvieira/claude-skills-fv