api-security-best-practices SKILL.md skillA

api-security-best-practices from sickn33/agentic-awesome-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sickn33/agentic-awesome-skills/api-security-best-practices@git:20260905.b0bf123

Pins git:20260905.b0bf123 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-security-best-practices/SKILL.md
Versions recorded
3
Latest version
git:20260905.b0bf123, committed Sep 5, 2026
First version recorded
Jul 8, 2026
Size
11,267 bytes
Repository stars
49,308
License
MIT

Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and protection against common API vulnerabilities.

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 Security Best Practices

Review the request boundary from caller identity through authorization, validated
input, storage and observable response. Preserve the application's actual identity
provider and data model rather than introducing a second authentication system.

## When to Use

Use when adding a protected endpoint, reviewing object access, replacing permissive
request parsing, or investigating an API abuse path. For a concrete defect, start
with the failing route and its callers; do not deploy unrelated security infrastructure.

## Inputs and prerequisites

Record the routes, caller/tenant model, identity provider, token contract, runtime and
locked dependency versions, database schema, proxy topology and authorized test scope.
Use synthetic identities in a test environment. Existing task authorization carries
forward; production scans, account writes and message sends need their own authority.
The Node examples below are integration sketches for Express, jsonwebtoken and Zod;
application/database adapters are deliberately named rather than presented as a full
runnable service. Confirm APIs against the installed versions before integrating.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sickn33/agentic-awesome-skills/api-security-best-practices@sha256:f01d39fb4e2a134f

The line at the top of this page pins the label git:20260905.b0bf123, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_4bysnx3rkinak5pq.svg)](https://markdownregistry.com/a/art_4bysnx3rkinak5pq)

7 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Jul 8, 2026 and Sep 5, 2026, about one every 29 days.

versioncommittedcommitsizeaudit
git:20260905.b0bf123 latest2026-09-05 b0bf123 11,267 BA view · diff
git:20260729.2d74b642026-07-29 2d74b64 23,791 BA view · diff
git:20260708.a07936c2026-07-08 a07936c 23,790 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (11267 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

GitHub

sickn33/agentic-awesome-skills · 49,308 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4bysnx3rkinak5pq
GET https://markdownregistry.com/api/v1/resolve?ref=sickn33/agentic-awesome-skills/api-security-best-practices
GET https://markdownregistry.com/api/v1/blob/f01d39fb4e2a134f4ae416dc03701d99b5e703d49472376a7ce488cfdd55328f

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 sickn33/agentic-awesome-skills

AGENTS.md AGENTS.md file
sickn33/agentic-awesome-skills · AGENTS.md
git:20261029.00ee0d3 · audit A · 49,308 stars
llms.txt@apps/web-app/public llms.txt file
sickn33/agentic-awesome-skills · apps/web-app/public/llms.txt
git:20261102.1519f81 · audit A · 49,308 stars
00-andruia-consultant SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/00-andruia-consultant/SKILL.md · Usar al iniciar o mejorar un proyecto de IA: diagnostica código y restricciones, propone skills existentes y redacta…
git:20261014.c062f9f · audit A · 49,308 stars
007 SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/007/SKILL.md · Security audit, hardening, threat modeling (STRIDE/PASTA), Red/Blue Team, OWASP checks, code review, incident response…
git:20261024.6d4ea18 · audit A · 49,308 stars
10-andruia-skill-smith SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/10-andruia-skill-smith/SKILL.md · Usar para crear o mejorar una skill de Andru.ia: define entradas y resultados, redacta SKILL.md con ejemplos y límites…
git:20261014.c062f9f · audit A · 49,308 stars
20-andruia-niche-intelligence SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/20-andruia-niche-intelligence/SKILL.md · Usar tras definir el sector de un proyecto: prepara un dossier en español con contexto, normas aplicables, patrones UX…
git:20261014.c062f9f · audit A · 49,308 stars
2slides-ppt-generator SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/2slides-ppt-generator/SKILL.md · AI-powered presentation generation via the 2slides API — create slides from text, match a reference image style…
git:20261024.6d4ea18 · audit A · 49,308 stars
360-feedback-system SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/360-feedback-system/SKILL.md · 360 feedback register: reviewer, subject, review cycle, visibility, due date and score, as CSV, SQL, JSON Schema or…
git:20261024.6d4ea18 · audit A · 49,308 stars
3d-web-experience SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/3d-web-experience/SKILL.md · Use when building or debugging web 3D scenes, product configurators or portfolios with Three.js, React Three Fiber or…
git:20261014.c062f9f · audit A · 49,308 stars
a4a SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/a4a/SKILL.md · Connect your AI agent to the A4A end-to-end encrypted agent-to-agent messaging network via local MCP tools or Python…
git:20261024.6d4ea18 · audit A · 49,308 stars
aas-compose-stack SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/aas-compose-stack/SKILL.md · Preserve the coding agent's explicit AAS skill selection as a validated stack and optional evidence.
git:20261002.7bb0ab4 · audit A · 49,308 stars
aas-discover SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/aas-discover/SKILL.md · Discover AAS skills for an explicit task and compare their complete instructions without installing them.
git:20261002.7bb0ab4 · audit A · 49,308 stars

Every file in sickn33/agentic-awesome-skills

Other files named api-security-best-practices

api-security-best-practices SKILL.md skill
francostino/opencode-skills-collection · bundled-skills/api-security-best-practices/SKILL.md · Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and…
git:20260906.7d37dc9 · audit A · 90 stars
api-security-best-practices SKILL.md skill
aicodedecode/awesome-muse-skills · skills-imported/api-security-best-practices/SKILL.md · Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and…
git:20260927.806f3e1 · audit A · 53 stars
api-security-best-practices SKILL.md skill
ghosteken/agent-harness · archive/skills-community/api-security-best-practices/SKILL.md · Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and…
git:20260808.6d4cee3 · audit A · 4 stars
api-security-best-practices SKILL.md skill
b-mendoza/agent-skills · .agents/skills/api-security-best-practices/SKILL.md · Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and…
git:20260906.abc8529 · audit A · 3 stars

Browse by kind, by grade A, or by owner.