building-packages SKILL.md skillA
building-packages 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/building-packages@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/building-packages/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260913.db96265, committed Sep 13, 2026
- Size
- 2,397 bytes
- Repository stars
- 10
- License
- MIT
Create and manage Concrete CMS packages. Use this skill when the user asks to create a custom package or manage existing packages.
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
# Building Packages
Concrete CMS packages are modular components that extend the functionality of the platform. This skill is essential for developers who want to create custom functionality or integrate third-party services into their Concrete CMS projects.
## Basic Workflow for Package Development
Follow these steps to develop a custom package in Concrete CMS:
1. **Initialize the Package Directory**:
Create a new directory under `packages/` with a lowercase, underscore-separated name (e.g., `packages/my_custom_package`).
2. **Create the Package Controller**:
Create a `controller.php` file in the package root. Define the package handle, version, and basic information.
- [Package Structure and Controller Reference](references/package_structure.md)
3. **Implement Installation Logic**:
In the `install()` method of your controller, add code to register block types, themes, single pages, or other entities.
- [Installing Entities Reference](references/install_entities.md)
4. **Add Custom Functionality**:
- **Extend Core Classes**: [Extending Core Classes Reference](references/extending_core.md)
…Read the whole file at its exact version.
How to install
mdr add macareuxdigital/concretecms-skills/building-packages@sha256:28a0d59699219898The 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_awsahyxnbwy4qe5g)
2 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 (2397 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_awsahyxnbwy4qe5g GET https://markdownregistry.com/api/v1/resolve?ref=macareuxdigital/concretecms-skills/building-packages GET https://markdownregistry.com/api/v1/blob/28a0d5969921989859819d83c30e4385e80899f6bcc59fed2061a8124fc4427b
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.