Security review: OWASP Top 10:2025, ASVS 5.0, Agentic AI 2026, LLM Top 10, API/CICD, NIST 800-63B-4, WebAuthn, OAuth 2.1, FAPI 2.0, post-quantum. Triggers: "security review", "OWASP", "vulnerability check", "auth code", "threat model", "MCP security". Skip for general code review.
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
# OWASP Security Best Practices Skill
Apply these security standards when writing or reviewing code.
> **Scope & limits.** This skill is a **checklist-guided review assistant** over
> the standards below — useful for sweeping a diff or PR and surfacing
> high-signal findings. It is **not**, and does not replace, a formal audit,
> pentest, or certification: the breadth of the catalog (10+ frameworks) means
> *checklist* coverage, not exhaustive verification. Use it to raise the security
> floor and to prioritize; treat findings as starting points, not verdicts.
## Deep references
This file is the **operational entry point** — quick checklists and code patterns. For deep coverage of any topic below, open the matching file in [`references/`](./references/):
| Topic | File |
|-------|------|
| LLM Top 10:2025 + Agentic 2026 deep dive + MCP security + modern prompt injection + MAESTRO | [`references/llm-agentic.md`](./references/llm-agentic.md) |
| OWASP API Security Top 10:2023 + OWASP CI/CD Top 10 (PPE, OIDC federation, signing) | [`references/api-cicd.md`](./references/api-cicd.md) |
…
The line at the top of this page pins the label git:20260808.4c75eb4, 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.
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 (27632 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
jotjunior/cstk · 24 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_73gx6dpzgowfuujz
GET https://markdownregistry.com/api/v1/resolve?ref=jotjunior/cstk/owasp-security
GET https://markdownregistry.com/api/v1/blob/3eddd13f2180870c5bb8973ea9d2c1b86aa11d85fe175b9f46d8f9a2adc07875
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.
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