api-security SKILL.md skillA
api-security from jim60105/copilot-prompt is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jim60105/copilot-prompt/api-security@git:20260928.6911cf8Pins git:20260928.6911cf8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jim60105/copilot-prompt
- Path
skills/api-security/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260928.6911cf8, committed Sep 28, 2026
- First version recorded
- Mar 19, 2026
- Size
- 8,980 bytes
- Repository stars
- 22
- License
- GFDL-1.3
Guideline for designing, implementing, and verifying secure APIs following OWASP API Security Top 10 (2023) best practices. Use when the user wants to: (1) review API code or design for security vulnerabilities, (2) design a secure REST, GraphQL, or gRPC API architecture, (3) implement API authentication and authorization (OAuth2, JWT, API keys, mTLS), (4) configure rate limiting, input validation, or CORS, (5) audit API endpoints for BOLA, BFLA, or mass assignment vulnerabilities, (6) create…
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 Development Guide Structured approach to building secure APIs, covering OWASP API Security Top 10 (2023), secure design patterns, and verification checklists. Apply these guidelines throughout the API development lifecycle — from threat modeling to deployment monitoring. ## Secure API Development Lifecycle ### Phase 1: API Threat Modeling and Design - Identify API attack surfaces: public endpoints, authenticated endpoints, admin endpoints, webhooks, third-party integrations - Map data flows: what sensitive data crosses each API boundary - Define authorization model: which users/roles access which resources and properties - Design security controls: - Centralized authentication (OAuth2/OIDC at API gateway) - Object-level authorization at data access layer - Schema-based input validation at every endpoint - Rate limiting per endpoint sensitivity - API versioning with deprecation strategy ### Phase 2: Secure Implementation #### Critical API Security Rules | Never | Instead | |-------|---------| | Return full objects (to_dict/to_json) | Explicit response schemas with cherry-picked fields | …
Read the whole file at its exact version.
How to install
mdr add jim60105/copilot-prompt/api-security@sha256:f4452bdc7994ae56The line at the top of this page pins the label git:20260928.6911cf8, 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_dwcupx52l7d7ezcl)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 19, 2026 and Sep 28, 2026, about one every 64 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260928.6911cf8 latest | 2026-09-28 | 6911cf8 | 8,980 B | A | view · diff |
| git:20260525.d5d181c | 2026-05-25 | d5d181c | 8,949 B | A | view · diff |
| git:20260525.c389ab4 | 2026-05-25 | c389ab4 | 8,916 B | A | view · diff |
| git:20260319.87e0ba5 | 2026-03-19 | 87e0ba5 | 8,889 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 (8980 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
jim60105/copilot-prompt · 22 stars · license GFDL-1.3 · pushed 2026-10-16 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_dwcupx52l7d7ezcl GET https://markdownregistry.com/api/v1/resolve?ref=jim60105/copilot-prompt/api-security GET https://markdownregistry.com/api/v1/blob/f4452bdc7994ae5674dfe5c5d143728492215961ab670a55864243e6e501e5dd
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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