cloudformation SKILL.md skillA
cloudformation from itsmostafa/aws-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add itsmostafa/aws-agent-skills/cloudformation@git:20260108.5b66f5cPins git:20260108.5b66f5c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- itsmostafa/aws-agent-skills
- Path
skills/cloudformation/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260108.5b66f5c, committed Jan 8, 2026
- First version recorded
- Jan 7, 2026
- Size
- 9,819 bytes
- Repository stars
- 1,171
- License
- MIT
AWS CloudFormation infrastructure as code for stack management. Use when writing templates, deploying stacks, managing drift, troubleshooting deployments, or organizing infrastructure with nested stacks.
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
# AWS CloudFormation
AWS CloudFormation provisions and manages AWS resources using templates. Define infrastructure as code, version control it, and deploy consistently across environments.
## Table of Contents
- [Core Concepts](#core-concepts)
- [Common Patterns](#common-patterns)
- [CLI Reference](#cli-reference)
- [Best Practices](#best-practices)
- [Troubleshooting](#troubleshooting)
- [References](#references)
## Core Concepts
### Templates
JSON or YAML files defining AWS resources. Key sections:
- **Parameters**: Input values
- **Mappings**: Static lookup tables
- **Conditions**: Conditional resource creation
- **Resources**: AWS resources (required)
- **Outputs**: Return values
### Stacks
Collection of resources managed as a single unit. Created from templates.
### Change Sets
Preview changes before executing updates.
### Stack Sets
Deploy stacks across multiple accounts and regions.
## Common Patterns
### Basic Template Structure
```yaml
AWSTemplateFormatVersion: '2010-09-09'
Description: My infrastructure template
Parameters:
Environment:
Type: String
AllowedValues: [dev, staging, prod]
Default: dev
Mappings:
EnvironmentConfig:
dev:
…Read the whole file at its exact version.
How to install
mdr add itsmostafa/aws-agent-skills/cloudformation@sha256:31654958084e18e3The line at the top of this page pins the label git:20260108.5b66f5c, 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_pjrdwkjvmaotkzg7)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jan 7, 2026 and Jan 8, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260108.5b66f5c latest | 2026-01-08 | 5b66f5c | 9,819 B | A | view · diff |
| git:20260107.10746da | 2026-01-07 | 10746da | 9,716 B | A | view |
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 (9819 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
itsmostafa/aws-agent-skills · 1,171 stars · license MIT · pushed 2026-10-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pjrdwkjvmaotkzg7 GET https://markdownregistry.com/api/v1/resolve?ref=itsmostafa/aws-agent-skills/cloudformation GET https://markdownregistry.com/api/v1/blob/31654958084e18e3b904103563158a87df51826e741c3e613c0377a417934426
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.