security-review SKILL.md skillA

security-review from haabe/mycelium is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add haabe/mycelium/security-review@git:20260926.f6d38fe

Pins git:20260926.f6d38fe in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
haabe/mycelium
Path
plugins/mycelium/skills/security-review/SKILL.md
Versions recorded
8
Latest version
git:20260926.f6d38fe, committed Sep 26, 2026
First version recorded
May 22, 2026
Size
12,076 bytes
Repository stars
51
License
MIT

OWASP secure design review for code and architecture. Checks input validation, authentication, authorization, data protection.

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

# Security Review

Language-agnostic security review based on OWASP Secure by Design.

## Step 0: Scope the review to what the product holds and does (v0.271.0)

**Record the scope first, then apply only the sections it calls for.** Every product has threats,
but not every product has a login, code, or personal data. Founder, 2026-09-26: "2fa and so on
might not be applicable for all products." A bookkeeping service delivered by hand was reviewed
against this web checklist (CORS, SQL parameters, security headers, multi-factor login), most of
which has nothing to act on there. Write in `.claude/canvas/threat-model.yml`, under its own key
(`scope` stays the threat model's own sentence on what is being modelled; 0.271.0 reused that name and
broke every threat model that had one):

```yaml
security_scope:
  runs_code: true | false          # software the product runs (a web app, an API, a script)
  accounts: true | false           # people log in to something the product provides
  personal_data: "none" | what     # e.g. "client bank exports and receipts", "email addresses"
  money: true | false              # the product takes or moves payments
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add haabe/mycelium/security-review@sha256:7ccba5e95a2a9bdf

The line at the top of this page pins the label git:20260926.f6d38fe, 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_oe2hzjns7lbciyyn.svg)](https://markdownregistry.com/a/art_oe2hzjns7lbciyyn)

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

Versions

The registry has recorded 8 versions of this file, between May 22, 2026 and Sep 26, 2026, about one every 18 days.

versioncommittedcommitsizeaudit
git:20260926.f6d38fe latest2026-09-26 f6d38fe 12,076 BA view · diff
git:20260926.1b88e0f2026-09-26 1b88e0f 11,895 BA view · diff
git:20260917.533cc632026-09-17 533cc63 9,297 BA view · diff
git:20260704.7639f182026-07-04 7639f18 7,120 BA view · diff
git:20260701.d89b6ed2026-07-01 d89b6ed 7,120 BA view · diff
git:20260526.8acbed82026-05-26 8acbed8 6,893 BA view · diff
git:20260525.9fac9422026-05-25 9fac942 6,348 BA view · diff
git:20260522.1825b222026-05-22 1825b22 6,038 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 (12076 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

haabe/mycelium · 51 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_oe2hzjns7lbciyyn
GET https://markdownregistry.com/api/v1/resolve?ref=haabe/mycelium/security-review
GET https://markdownregistry.com/api/v1/blob/7ccba5e95a2a9bdfa322281fbcb73aa0de0079d15c5ff2f959cdc52e60c57362

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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