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 eks-best-practicesgit 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/eks-best-practices)<a href="https://agentmods.dev/skills/aws-samples/sample-apex-skills/eks-best-practices"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-apex-skills/eks-best-practices.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 | $0.00240 | $0.05965 |
| Opus 5 | $0.00120 | $0.02982 |
| Sonnet 5 | $0.00048 | $0.01193 |
| Haiku 4.5 | $0.00024 | $0.00596 |
Grade A, and why
eks-best-practices 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
19 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.
- references/argocd-patterns.md 18 KB
- references/autoscaling.md 19 KB
- references/cluster-upgrades.md 32 KB
- references/container-registry.md 24 KB
- references/cost-optimization.md 21 KB
- references/eks-auto-mode.md 8.2 KB
- references/hybrid-deployments.md 46 KB
- references/karpenter.md 21 KB
- references/networking-ingress-dns.md 16 KB
- references/networking.md 28 KB
- references/observability.md 31 KB
- references/reliability-advanced.md 14 KB
- references/reliability-core.md 29 KB
- references/scalability.md 28 KB
- references/security-runtime-network.md 16 KB
- references/security-supply-chain.md 12 KB
- references/security.md 24 KB
- references/surge-readiness.md 19 KB
- references/terraform-examples.md 23 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 · 417 lines · 240 tokens per session scan A 5371ad5c5056
eks-best-practices is a skill published in the GitHub repository aws-samples/sample-apex-skills (56 stars, last pushed yesterday), licensed MIT-0. It adds 240 tokens to every session and 5,965 once invoked, about $0.0012 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.
Other skills, from other repositories
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Diagnose EKS worker nodes in NotReady and determine safe remediation.
Cloud Security & Container Hardening
AWS/Azure/GCP security auditing, container and Kubernetes hardening, Infrastructure as Code scanning, and cloud compliance assessment.
cloudfront-waf-hardening
Harden ALB-backed services (LiteLLM, generic APIs) behind CloudFront + WAF. Creates CloudFront distribution with secret origin header, WAF Web ACL with path whitelist, and locks down ALB Security Group to CloudFront-only. Use when deploying any internet-facing ALB service that should not be directly accessible.
aws-research
Research an AWS or Kiro question across community and first-party sources, then answer with citations. Use when a docs answer is missing or contradicts observed behaviour, when someone else has probably hit the same error, when the question is about Kiro itself (steering, hooks, specs, powers, MCP), when it concerns…
extended-support-audit
Audits AWS resources for extended support charges and end-of-life version risk. Scans running resources, cross-references with AWS EOL schedules, and produces a status table showing what's incurring extra charges or approaching EOL. Use when the user says "extended support audit", "EOL check", "show me resources in…
agentcore-investigation
Investigate Bedrock AgentCore runtime sessions via CloudWatch Logs Insights — resolve session/trace IDs, query OTEL spans, filter noise, build timelines. Use when debugging AgentCore agent sessions, tracing tool calls, or analyzing latency.