ecs-architect SKILL.md skillA
ecs-architect from aws-samples/sample-apex-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aws-samples/sample-apex-skills/ecs-architect@git:20261108.ad08020Pins 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-architect/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261108.ad08020, committed Nov 8, 2026
- First version recorded
- Jul 10, 2026
- Size
- 18,720 bytes
- Repository stars
- 95
- License
- MIT-0
Use when choosing and architecting an Amazon ECS deployment model for a NEW workload — Fargate vs ECS on EC2 vs Managed Instances vs Express Mode vs ECS Anywhere/External — plus capacity-provider strategy, task sizing, awsvpc/ENI density, networking, service parameters, and launch-type or topology migration (EC2 launch type to capacity providers/Managed Instances; Service Discovery to Service Connect). Also the shared ECS best-practices corpus. Triggers include "which ECS launch type…
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
# Amazon ECS Deployment-Model Design and Selection
Choose the right Amazon ECS compute/launch model for a workload, architect the cluster + services around it, and plan the transition when a customer is moving off an older topology. This is the anchor ECS skill — the decision framework every other ECS skill leans on. It answers two coupled questions:
1. **Selection** — Which of Fargate, ECS on EC2, ECS Managed Instances, ECS Express Mode, or ECS Anywhere/External fits this workload, and what capacity-provider strategy backs it?
2. **Design + migration** — How is the task sized, how is the network laid out (awsvpc/ENI density), what service parameters are set, and — if an estate already exists — how does it move from EC2 launch type to capacity providers / Managed Instances, or from Service Discovery to Service Connect?
## When to Use
- Picking a compute model for a **new** containerized workload on ECS ("Fargate or EC2?", "should I use Managed Instances?", "is Express Mode right for this?").
- Designing a capacity-provider strategy (Fargate / FARGATE_SPOT / EC2 ASG / Managed Instances mixes) and base/weight ratios.
…Read the whole file at its exact version.
How to install
mdr add aws-samples/sample-apex-skills/ecs-architect@sha256:1982258363a31af3The 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.
[](https://markdownregistry.com/a/art_hzllyyun7kzirsrx)
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Versions
The registry has recorded 4 versions of this file, between Jul 10, 2026 and Nov 8, 2026, about one every 41 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261108.ad08020 latest | 2026-11-08 | ad08020 | 18,720 B | A | view · diff |
| git:20260710.98b9c32 | 2026-07-10 | 98b9c32 | 18,896 B | A | view · diff |
| git:20260710.91391e1 | 2026-07-10 | 91391e1 | 18,907 B | A | view · diff |
| git:20260710.a7c6d81 | 2026-07-10 | a7c6d81 | 17,892 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 (18720 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
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_hzllyyun7kzirsrx GET https://markdownregistry.com/api/v1/resolve?ref=aws-samples/sample-apex-skills/ecs-architect GET https://markdownregistry.com/api/v1/blob/1982258363a31af31294087a0e41ac1cc199d19deccedfbc926b8c47bf08aced
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.