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 laurigates/claude-plugins --skill container-developmentgit clone --depth 1 https://github.com/laurigates/claude-pluginsWrote 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/laurigates/claude-plugins/container-development)<a href="https://agentmods.dev/skills/laurigates/claude-plugins/container-development"><img src="https://agentmods.dev/badge/skills/laurigates/claude-plugins/container-development/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/laurigates/claude-plugins/container-development"><img src="https://agentmods.dev/badge/skills/laurigates/claude-plugins/container-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Privilege Escalation · line 161 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium MCP Rug Pull · line 285 Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.Fix: Pin the image: image:tag or image@sha256:abc123
- medium MCP Rug Pull · line 286 Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.Fix: Pin the image: image:tag or image@sha256:abc123
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 | $0.00045 | $0.02359 |
| Opus 5.5 | $0.00018 | $0.00944 |
| Sonnet 5.5 | $0.00009 | $0.00472 |
| Haiku 4.5 | $0.00005 | $0.00236 |
Grade A, and why
container-development scanned grade A 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 15d 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 rootlowPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- **Non-root user**: REQUIRED - never run as root in production Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
How it starts
The opening of the file, as written. The whole thing — 197 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Container Development
Expert knowledge for containerization and orchestration with focus on security-first, lean container images and 12-factor app methodology.
When to Use This Skill
| Use this skill when... | Use a language-specific sibling (go-containers, nodejs-containers, python-containers) instead when... |
|---|---|
| Writing or optimizing language-agnostic Dockerfiles | Optimizing Go static binaries, Node.js Alpine builds, or Python slim images |
| Authoring multi-stage build patterns or 12-factor configuration | The image-size goal is dominated by language runtime choices (scratch, distroless, musl/glibc) |
| Hardening containers (non-root, minimal base, secrets) | Running Skaffold sync (skaffold-filesync) or OrbStack networking (skaffold-orbstack) |
| Composing services with Docker Compose | The work is purely a Skaffold pre-deploy test (skaffold-testing) |
Security Philosophy (Non-Negotiable)
Non-Root is MANDATORY: ALL production containers MUST run as non-root users. This is not optional.
Minimal Base Images: Use Alpine (~5MB) for Node.js/Go/Rust. Use slim (~50MB) for Python (musl compatibility issues with Alpine).
Multi-Stage Builds Required: Separate build and runtime environments. Build tools should NOT be in production images.
Core Expertise
Container Image Construction
- Dockerfile/Containerfile Authoring: Clear, efficient, and maintainable container build instructions
- Multi-Stage Builds: Creating minimal, production-ready images
- Image Optimization: Reducing image size, minimizing layer count, optimizing build cache
- Security Hardening: Non-root users, minimal base images, vulnerability scanning
Container Orchestration
- Service Architecture: Microservices with proper service discovery
- Resource Management: CPU/memory limits, auto-scaling policies, resource quotas
- Health & Monitoring: Health checks, readiness probes, observability patterns
- Configuration Management: Environment variables, secrets, configuration management
What ships with it
3 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.
- 15d ago Changed · -111 lines a91c24956617
- 1mo ago First seen · 308 lines · 45 tokens per session scan A 88500c95b484
container-development is a skill published in the GitHub repository laurigates/claude-plugins (59 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 2,359 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
docker-deploy
Use when creating Dockerfiles, docker-compose configs, or containerizing applications. Covers multi-stage builds, image optimization, compose patterns for dev and production, health checks, signal handling, and security hardening.
docker-optimization
Docker image optimization patterns including multi-stage builds, layer caching, security hardening, and size reduction techniques. Use when building Docker images, optimizing container size, improving build performance, or implementing Docker security best practices. Reduces image sizes by 70-90% and build times by…
mapping-container-images-to-chainguard
Instructions for mapping container image references in FROM statements to their Chainguard equivalents. Use this when converting Dockerfiles to Chainguard.
apko-generator
Generate apko YAML configurations for building custom Wolfi-based container images.
mapping-os-packages-to-chainguard
Instructions for mapping the name of OS packages from ecosystems like Alpine, Debian and Red Hat to Chainguard. Use this when converting Dockerfiles to Chainguard.
dockerfile-migrator
Migrate existing Dockerfiles to use secure Chainguard Containers.