ecs-build SKILL.md skillA

ecs-build from aws-samples/sample-apex-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add aws-samples/sample-apex-skills/ecs-build@git:20261108.ad08020

Pins git:20261108.ad08020 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
aws-samples/sample-apex-skills
Path
skills/ecs-build/SKILL.md
Versions recorded
3
Latest version
git:20261108.ad08020, committed Nov 8, 2026
First version recorded
Jul 10, 2026
Size
29,056 bytes
Repository stars
95
License
MIT-0

Use when building Amazon ECS infrastructure with Terraform: apply-ready code for clusters, services, and task definitions across three capacity models — Fargate, EC2 Auto Scaling group providers, and ECS Managed Instances. Covers rolling/blue-green/linear/canary deployment config, Express services, Service Connect, private/VPC-endpoint-only networking, secrets, and Graviton. Also use when (1) wiring a Managed Instances capacity provider and its IAM role, (2) mixing FARGATE and FARGATE_SPOT in…

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

# ECS Build

Generate complete, production-ready Amazon ECS infrastructure projects in Terraform. All generated code is `terraform apply`-ready with zero manual fixups.

All generated Terraform code MUST follow the conventions from these companion skills:

- **terraform-skill** -- resource block ordering, variable conventions, file organization, version constraints

Scope: **Terraform only.** For CDK-based ECS generation, this skill does not apply -- point the user at the AWS CDK `ecs-patterns` constructs and the `aws-containers` skill in [aws/agent-toolkit-for-aws](https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-containers). ECS Anywhere (`EXTERNAL` launch type) is not generated by this skill -- it has no capacity providers, no service load balancing, and no awsvpc mode; advise rolling-update-only guidance and route deployment questions to `ecs-devops`.

## When to Use

- Generating ECS Terraform code from requirements (new project)
- Scaffolding an ECS cluster with Fargate, EC2 (ASG), or Managed Instances capacity providers
- Wiring the ECS infrastructure IAM role for Managed Instances, EBS task volumes, or Service Connect TLS
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add aws-samples/sample-apex-skills/ecs-build@sha256:c59ab7cef5bf4672

The line at the top of this page pins the label git:20261108.ad08020, 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_o4qk7uniqnwo3nbr.svg)](https://markdownregistry.com/a/art_o4qk7uniqnwo3nbr)

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

Versions

The registry has recorded 3 versions of this file, between Jul 10, 2026 and Nov 8, 2026, about one every 61 days.

versioncommittedcommitsizeaudit
git:20261108.ad08020 latest2026-11-08 ad08020 29,056 BA view · diff
git:20260824.4e0f2dc2026-08-24 4e0f2dc 28,945 BA view · diff
git:20260710.98b9c322026-07-10 98b9c32 28,413 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 (29056 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

aws-samples/sample-apex-skills · 95 stars · license MIT-0 · pushed 2026-11-09 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_o4qk7uniqnwo3nbr
GET https://markdownregistry.com/api/v1/resolve?ref=aws-samples/sample-apex-skills/ecs-build
GET https://markdownregistry.com/api/v1/blob/c59ab7cef5bf46729c8477d6adfa3c4f0740c9d282ac035e7895c0c1185d276e

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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