api-endpoint-builder SKILL.md skillA
api-endpoint-builder from sickn33/agentic-awesome-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sickn33/agentic-awesome-skills/api-endpoint-builder@git:20260708.a07936cPins git:20260708.a07936c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sickn33/agentic-awesome-skills
- Path
plugins/agentic-awesome-skills-claude/skills/api-endpoint-builder/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260708.a07936c, committed Jul 8, 2026
- Size
- 7,407 bytes
- Repository stars
- 49,308
- License
- MIT
Builds production-ready REST API endpoints with validation, error handling, authentication, and documentation. Follows best practices for security and scalability.
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
# API Endpoint Builder
Build complete, production-ready REST API endpoints with proper validation, error handling, authentication, and documentation.
## When to Use This Skill
- User asks to "create an API endpoint" or "build a REST API"
- Building new backend features
- Adding endpoints to existing APIs
- User mentions "API", "endpoint", "route", or "REST"
- Creating CRUD operations
## What You'll Build
For each endpoint, you create:
- Route handler with proper HTTP method
- Input validation (request body, params, query)
- Authentication/authorization checks
- Business logic
- Error handling
- Response formatting
- API documentation
- Tests (if requested)
## Endpoint Structure
### 1. Route Definition
```javascript
// Express example
router.post('/api/users', authenticate, validateUser, createUser);
// Fastify example
fastify.post('/api/users', {
preHandler: [authenticate],
schema: userSchema
}, createUser);
```
### 2. Input Validation
Always validate before processing:
```javascript
const validateUser = (req, res, next) => {
const { email, name, password } = req.body;
if (!email || !email.includes('@')) {
…Read the whole file at its exact version.
How to install
mdr add sickn33/agentic-awesome-skills/api-endpoint-builder@sha256:bb9f07b95cd6e4daThe line at the top of this page pins the label git:20260708.a07936c, 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_3x7es2jx6mbcsonw)
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Versions
The registry has recorded 1 version of this file, committed on Jul 8, 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 (7407 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
sickn33/agentic-awesome-skills · 49,308 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3x7es2jx6mbcsonw GET https://markdownregistry.com/api/v1/resolve?ref=sickn33/agentic-awesome-skills/api-endpoint-builder GET https://markdownregistry.com/api/v1/blob/bb9f07b95cd6e4da7b97d5c518b66019822f62abecc0b5d7e02c56f64de36fb5
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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