APEX Skills is a collection of agent skills that provide AWS platform-engineering knowledge and workflows to coding agents. Engineers use it for tasks involving services such as Amazon EKS and Kubernetes. The catalogue entries are its skills and agents.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add aws-samples/sample-apex-skills --skill ecs-modernizegit clone --depth 1 https://github.com/aws-samples/sample-apex-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/aws-samples/sample-apex-skills/ecs-modernize)<a href="https://agentmods.dev/skills/aws-samples/sample-apex-skills/ecs-modernize"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-apex-skills/ecs-modernize.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00230 | $0.07766 |
| Opus 5 | $0.00115 | $0.03883 |
| Sonnet 5 | $0.00046 | $0.01553 |
| Haiku 4.5 | $0.00023 | $0.00777 |
Grade A, and why
ecs-modernize scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
The source is not reproduced here
Licensed MIT-0
The repository is licensed MIT-0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
18 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- assets/replatform-terraform/iam.tf 4.7 KB
- assets/replatform-terraform/main.tf 15 KB
- assets/replatform-terraform/OPTIONAL-efs.tf.fragment 4.9 KB
- assets/replatform-terraform/outputs.tf 1.9 KB
- assets/replatform-terraform/variables.tf 11 KB
- references/blocker-detection.md 28 KB
- references/code-transformation-agent-led.md 54 KB
- references/code-transformation.md 52 KB
- references/containerization-execution.md 33 KB
- references/deploy-verify-handoff.md 22 KB
- references/iam-policy.json 6.3 KB
- references/rearchitect-path.md 37 KB
- references/replatform-environment-build.md 34 KB
- references/replatform-path.md 66 KB
- references/report-generation.md 28 KB
- references/scoring-and-recommendation.md 41 KB
- references/tech-stack-detection.md 23 KB
- references/windows-environment-build.md 38 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 263 lines · 230 tokens per session scan A 4ea251a28dcd
ecs-modernize is a skill published in the GitHub repository aws-samples/sample-apex-skills (56 stars, last pushed yesterday), licensed MIT-0. It adds 230 tokens to every session and 7,766 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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ecspresso
ECS deployment tool - deploy, manage, and troubleshoot ECS services.
securing-kubernetes-on-cloud
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ecs
AWS ECS container orchestration for running Docker containers. Use when deploying containerized applications, configuring task definitions, setting up services, managing clusters, or troubleshooting container issues.
eks
AWS EKS Kubernetes management for clusters, node groups, and workloads. Use when creating clusters, configuring IRSA, managing node groups, deploying applications, or integrating with AWS services.