codebase-security-audit SKILL.md skillA

codebase-security-audit from d-padmanabhan/agent-engineering-handbook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add d-padmanabhan/agent-engineering-handbook/codebase-security-audit@git:20260511.331baac

Pins git:20260511.331baac in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
d-padmanabhan/agent-engineering-handbook
Path
skills/codebase-security-audit/SKILL.md
Versions recorded
2
Latest version
git:20260511.331baac, committed May 11, 2026
First version recorded
May 10, 2026
Size
22,877 bytes
Repository stars
20
License
MIT

End-to-end codebase security audit using the practical eight-layer model - secrets scanning (regex + entropy), SAST (with taint analysis), SCA (deps + license), data-flow / taint, semantic / code-property-graph, IaC, custom rules, and DAST validation. Produces a severity-ranked remediation plan, .env templates, and a ready-to-use CI/CD continuous-scanning workflow. Covers OWASP Top 10 (2021) A01-A10 with curated ripgrep playbooks per category. Use when the user asks to "security audit…

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

# Codebase Security Audit & Remediation

A systematic, multi-layer security review with actionable fixes. Combines static (SAST), composition (SCA), secrets, data-flow / taint, semantic / CPG, infrastructure (IaC), custom rules, and dynamic (DAST) checks - and wires the results into CI/CD for continuous coverage.

**Companion rules:**

- `310-security.mdc` - principles + OWASP Top 10 + NHI Top 10
- `316-zero-trust.mdc` - Zero Trust principles (always-on)
- `160-github-actions.mdc` - secure CI workflow patterns

---

## When to invoke

Use when the user asks to:

- "Security audit" / "harden this repo" / "check for vulnerabilities"
- "Find committed secrets" / "scan for credentials"
- "OWASP audit" / "Top 10 review"
- "SAST scan" / "SCA / dependency audit" / "IaC audit" / "DAST validation"
- "Set up continuous security scanning"
- Open / re-open a security incident triage on a codebase

---

## Tooling Stack - Eight Practical Layers

Map every audit to these eight layers so coverage is explicit and gaps are visible.

| # | Layer | Purpose | Recommended Tools |
|---|---|---|---|
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add d-padmanabhan/agent-engineering-handbook/codebase-security-audit@sha256:2747c94ba0f56966

The line at the top of this page pins the label git:20260511.331baac, 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_ropzpqxfsiul5sgy.svg)](https://markdownregistry.com/a/art_ropzpqxfsiul5sgy)

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

Versions

The registry has recorded 2 versions of this file, between May 10, 2026 and May 11, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20260511.331baac latest2026-05-11 331baac 22,877 BA view · diff
git:20260510.b986b8c2026-05-10 b986b8c 22,876 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 (22877 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

d-padmanabhan/agent-engineering-handbook · 20 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ropzpqxfsiul5sgy
GET https://markdownregistry.com/api/v1/resolve?ref=d-padmanabhan/agent-engineering-handbook/codebase-security-audit
GET https://markdownregistry.com/api/v1/blob/2747c94ba0f56966a4c4ec0bfebf33d85431dd05c790f6997c75c94489a35e81

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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