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 JakubMikolajek/codex-skills-collection --skill dockergit clone --depth 1 https://github.com/JakubMikolajek/codex-skills-collectionWrote 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/jakubmikolajek/codex-skills-collection/docker)<a href="https://agentmods.dev/skills/jakubmikolajek/codex-skills-collection/docker"><img src="https://agentmods.dev/badge/skills/jakubmikolajek/codex-skills-collection/docker/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jakubmikolajek/codex-skills-collection/docker"><img src="https://agentmods.dev/badge/skills/jakubmikolajek/codex-skills-collection/docker.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00094 | $0.02241 |
| Opus 5 | $0.00047 | $0.01120 |
| Sonnet 5 | $0.00019 | $0.00448 |
| Haiku 4.5 | $0.00009 | $0.00224 |
Grade B, and why
docker scanned grade B with 1 finding 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 11d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- [ ] Final container does not run as root without reason How it starts
The opening of the file, as written. The whole thing — 234 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Dockerfile and Compose Patterns
Use this skill to produce lean, reproducible container setups that match the repository's delivery style. Prefer multi-stage builds, explicit quality gates, small runtime images, non-root execution, and Compose definitions that are easy to run locally and in CI. Treat the user's Next.js example as the preferred quality bar and layering style, not as the only supported stack.
Delivery Workflow
Use the checklist below and track progress:
Docker progress:
- [ ] Step 1: Discover runtime, package manager, and repo shape
- [ ] Step 2: Choose the correct stack pattern and single-app or Turborepo flow
- [ ] Step 3: Build a multi-stage Dockerfile with explicit quality gates
- [ ] Step 4: Add Docker Compose service wiring and runtime config
- [ ] Step 5: Verify image size, caching, security, and startup path
Default Style
- Prefer
node:<version>-alpinefor TypeScript/Node-based app images unless the project requires another base. - Enable
corepackwhen the project usespnpm. - Use multi-stage builds with explicit stages such as:
basedepslinttestbuilderrunner
- Keep quality gates inside the build when the project style expects lint/test/build enforcement before the runtime image exists.
- Use a dedicated non-root runtime user.
- Copy only the runtime artifacts needed by the final container.
Stack Selection
Choose the Docker strategy based on the deployable target:
| Stack type | Preferred runtime model |
|---|---|
| Next.js SSR / standalone | Node runtime with framework build artifacts |
| Nuxt SSR / hybrid | Node runtime with Nuxt build output |
| NestJS / Node API | Node runtime with compiled dist output |
| Vite / SPA frontend | Static asset runtime, often Nginx/Caddy or project-standard static server |
| Worker / CLI / job runner | Minimal runtime image with explicit command, often no exposed port |
| Turborepo app | Same as target stack, but with pruned or scoped workspace build |
What ships with it
1 file 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.
- 11d ago First seen · 234 lines · 94 tokens per session scan B 2e3e3cb4817f
docker is a skill published in the GitHub repository JakubMikolajek/codex-skills-collection (5 stars, last pushed 5d ago), licensed MIT. It adds 94 tokens to every session and 2,241 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
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compute-env-setup
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securing-kubernetes-on-cloud
This skill covers hardening managed Kubernetes clusters on EKS, AKS, and GKE by implementing Pod Security Standards, network policies, workload identity, RBAC scoping, image admission controls, and runtime security monitoring. It addresses cloud-specific security features including IRSA for EKS, Workload Identity for…
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.