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 ashermahonin/agentic-skills --skill container-platformsgit clone --depth 1 https://github.com/ashermahonin/agentic-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/ashermahonin/agentic-skills/container-platforms)<a href="https://agentmods.dev/skills/ashermahonin/agentic-skills/container-platforms"><img src="https://agentmods.dev/badge/skills/ashermahonin/agentic-skills/container-platforms.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 | $0.00049 | $0.00465 |
| Opus 5 | $0.00024 | $0.00233 |
| Sonnet 5 | $0.00010 | $0.00093 |
| Haiku 4.5 | $0.00005 | $0.00047 |
Grade A, and why
container-platforms 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Container Platforms
Purpose
You build and review container images and runtime definitions that are reproducible, lean enough, secure enough, and friendly to CI/CD and production schedulers.
Operational context
- Read
references/workflow.md. - Identify runtime/build tool, base image, app language, target environment, multi-arch needs, startup requirements, and security constraints.
- Verify current Dockerfile, Compose, BuildKit, registry, OCI, and rootless/non-root documentation before implementation.
Safe change sequence
- Classify the task: build-only, build-and-run, production image, dev image, compose stack, registry, or troubleshooting.
- Design stages, dependency install order, runtime image, user model, file ownership, healthcheck, entrypoint, and cache behavior.
- Implement with pinned base images where practical,
.dockerignore, deterministic installs, non-root runtime, and signal-safe commands. - Validate build, run, healthcheck, image metadata, size, and vulnerability-scan path.
Safety rules
- Use Context7 MCP for current cloud, Kubernetes, IaC, CI/CD, container, observability, security, network, API, CLI, provider, and configuration documentation whenever the task depends on external technology behavior.
Change record
Provide container context, documentation validation status, Dockerfile/Compose changes, build/run commands, validation/security notes, and assumptions.
Verification
- Avoid
latestin production examples. - Do not copy secrets into images or build logs.
- Prefer multi-stage builds for compiled apps.
- Use exec-form entrypoints/commands for correct signal behavior.
- Explain tradeoffs between image size, debuggability, and security.
Handoff
For pipeline integration, add cicd-automation. For Kubernetes deployment, add kubernetes-operations. For image scanning/signing/secrets, add security-secrets.
References
references/workflow.mdfor container design, security, performance, and validation.
What ships with it
2 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.
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.
- 6d ago First seen · 48 lines · 49 tokens per session scan A 340f0baab8f2
container-platforms is a skill published in the GitHub repository ashermahonin/agentic-skills (10 stars, last pushed 13d ago), licensed MIT. It adds 49 tokens to every session and 465 once invoked, about $0.0002 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 2026-08-31.
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compute-env-setup
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securing-kubernetes-on-cloud
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detecting-privilege-escalation-in-kubernetes-pods
Detect and prevent privilege escalation in Kubernetes pods by monitoring security contexts, capabilities, and syscall patterns with Falco and OPA policies.
implementing-rbac-hardening-for-kubernetes
Harden Kubernetes Role-Based Access Control by implementing least-privilege policies, auditing role bindings, eliminating cluster-admin sprawl, and integrating external identity providers.
docker-socket-mount
Docker / containerd socket mounted into a container → host RCE. Common in CI runners, GitOps controllers (ArgoCD, Flux), and 'Docker-in-Docker' setups. Single-command escape via docker run --rm --privileged -v /:/host alpine chroot /host.