api-security-best-practices SKILL.md skillA
api-security-best-practices from ghosteken/agent-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ghosteken/agent-harness/api-security-best-practices@git:20260808.6d4cee3Pins git:20260808.6d4cee3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ghosteken/agent-harness
- Path
archive/skills-community/api-security-best-practices/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260808.6d4cee3, committed Aug 8, 2026
- Size
- 23,777 bytes
- Repository stars
- 4
- 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 ## Overview Guide developers in building secure APIs by implementing authentication, authorization, input validation, rate limiting, and protection against common vulnerabilities. This skill covers security patterns for REST, GraphQL, and WebSocket APIs. ## When to Use This Skill - Use when designing new API endpoints - Use when securing existing APIs - Use when implementing authentication and authorization - Use when protecting against API attacks (injection, DDoS, etc.) - Use when conducting API security reviews - Use when preparing for security audits - Use when implementing rate limiting and throttling - Use when handling sensitive data in APIs ## How It Works ### Step 1: Authentication & Authorization I'll help you implement secure authentication: - Choose authentication method (JWT, OAuth 2.0, API keys) - Implement token-based authentication - Set up role-based access control (RBAC) - Secure session management - Implement multi-factor authentication (MFA) ### Step 2: Input Validation & Sanitization Protect against injection attacks: - Validate all input data - Sanitize user inputs - Use parameterized queries …
Read the whole file at its exact version.
How to install
mdr add ghosteken/agent-harness/api-security-best-practices@sha256:93902629949b6ea0The line at the top of this page pins the label git:20260808.6d4cee3, 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_lmugccmolvm6khgt)
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Versions
The registry has recorded 1 version of this file, committed on Aug 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 (23777 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
ghosteken/agent-harness · 4 stars · license MIT · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lmugccmolvm6khgt GET https://markdownregistry.com/api/v1/resolve?ref=ghosteken/agent-harness/api-security-best-practices GET https://markdownregistry.com/api/v1/blob/93902629949b6ea0f34030452b4ee5d7ca590ca663a2917da5d436ddd618c696
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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