concrete-cms-security SKILL.md skillA
concrete-cms-security from macareuxdigital/concretecms-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add macareuxdigital/concretecms-skills/concrete-cms-security@git:20260913.db96265Pins git:20260913.db96265 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- macareuxdigital/concretecms-skills
- Path
skills/concrete-cms-security/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260913.db96265, committed Sep 13, 2026
- Size
- 21,440 bytes
- Repository stars
- 10
- License
- MIT
Apply this skill whenever you are writing, reviewing, or modifying PHP code for Concrete CMS (concrete5) — custom blocks, packages, single pages, dashboard or dialog or backend controllers, REST endpoints, Express entities, themes, attribute types, jobs, or anything in concrete/controllers, concrete/blocks, controllers/, blocks/, packages/, src/. Use it even when the user does not say "security" — for example, adding a new endpoint, accepting a POST parameter, rendering a user-supplied string…
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
# Concrete CMS Security Operational reference for writing or reviewing Concrete CMS PHP. Read top-to-bottom for a new task; jump to **Danger signals** or **Review priorities** when triaging an existing PR. ## Structure 1. **Danger signals** — grep patterns demanding deeper inspection 2. **Review priorities** — order to inspect a PR, by risk-per-minute 3. **Critical patterns (C1–C7)** — RCE / privesc / auth bypass 4. **High-frequency patterns (H1–H7)** — XSS, CSRF, IDOR, SSRF, etc. 5. **Pre-flight checklist** 6. **Threat model & history** — actors and recurring patterns Sections 1–5 are the working reference. Section 6 is evidence. Skip this skill only for documentation/marketing copy, frontend-only changes that add no endpoints, or read-only review without modification. --- ## Danger signals Stop and apply the linked rule if any of these appear. **RCE class:** | Signal | Rule | |-------------------------------------------------------|------------------| | `unserialize(` | C1 | | `phar://`, `file://`, `data://`, `gopher://` | C1, H4 | …
Read the whole file at its exact version.
How to install
mdr add macareuxdigital/concretecms-skills/concrete-cms-security@sha256:416738a618aad7d9The line at the top of this page pins the label git:20260913.db96265, 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_7f3v3yk22wdebtzp)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 13, 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 (21440 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
macareuxdigital/concretecms-skills · 10 stars · license MIT · pushed 2026-09-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7f3v3yk22wdebtzp GET https://markdownregistry.com/api/v1/resolve?ref=macareuxdigital/concretecms-skills/concrete-cms-security GET https://markdownregistry.com/api/v1/blob/416738a618aad7d9dc3fc21cffdbc56a6435fd152c37f7ceea6eb700790895f8
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.