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 G1Joshi/Agent-Skills --skill dockergit clone --depth 1 https://github.com/G1Joshi/Agent-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/g1joshi/agent-skills/docker)<a href="https://agentmods.dev/skills/g1joshi/agent-skills/docker"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/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/g1joshi/agent-skills/docker"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/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 | $0.00020 | $0.00436 |
| Opus 5 | $0.00010 | $0.00218 |
| Sonnet 5 | $0.00004 | $0.00087 |
| Haiku 4.5 | $0.00002 | $0.00044 |
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 9d 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.
- **Don't run as Root**: Use `USER node` or create a specific user in the Dockerfile. What it actually says
Docker
Docker standardizes software delivery by packaging apps into containers. In 2025, Docker emphasizes BuildKit for high-performance builds and Docker Scout for supply chain security.
When to Use
- Local Development: Replicate production environments locally (
docker compose). - CI/CD: Standard unit of deployment for 99% of modern pipelines.
- Legacy Migration: Wrap old apps in containers to extend their life.
Quick Start (BuildKit)
# syntax=docker/dockerfile:1
FROM node:22-alpine AS base
WORKDIR /app
COPY package*.json ./
FROM base AS deps
RUN npm ci
FROM base AS release
COPY --from=deps /app/node_modules ./node_modules
COPY . .
CMD ["node", "index.js"]
Core Concepts
BuildKit
The modern build engine (default in 2025). Features concurrent build steps, secret mounting, and cache exports.
DOCKER_BUILDKIT=1 docker build .
Multi-stage Builds
Keep images tiny by separating "build" environment (compilers, SDKs) from "runtime" environment (minimal OS).
Docker Compose
Define multi-container apps.
docker compose up -d --watch (New watch mode syncs files continuously).
Best Practices (2025)
Do:
- Use
docker init: Generates best-practice Dockerfiles and .dockerignore for your language. - Use Distroless / Alpine: Minimize attack surface.
- Scan with Docker Scout: Check for CVEs early in the pipeline.
Don't:
- Don't run as Root: Use
USER nodeor create a specific user in the Dockerfile. - Don't leak secrets: Use
--mount=type=secretduring build, neverCOPY .env.
References
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.
- 9d ago First seen · 65 lines · 20 tokens per session scan B f9dcd390ed6c
docker is a skill published in the GitHub repository G1Joshi/Agent-Skills (12 stars, last pushed 7mo ago), licensed MIT. It adds 20 tokens to every session and 436 once invoked, about $0.0001 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 2026-09-03.
Other skills, from other repositories
sbom-supply-chain
Generate, attach, and verify SBOMs (CycloneDX/SPDX) for container images; implement SLSA provenance; harden software supply chain.
sigstore-signing
Sign container images and artifacts with cosign (keyless via OIDC and key-based); verify signatures in CD pipelines and admission policies.
artifact-management
Manage container images, Helm charts, and build artifacts — registry organization, retention, promotion between environments.
helm-charts
Design, structure, and test production-grade Helm charts with multi-environment overlays.
pod-troubleshooting
Systematic diagnosis of Kubernetes pod failures — CrashLoopBackOff, OOMKilled, Pending, ImagePullBackOff, and service connectivity issues. Use when the user encounters pods not starting, container restart loops, scheduling failures, or service unreachability in a K8s cluster.
k8s-manifests
When writing K8s YAML, designing Helm charts, setting resource limits, configuring probes, or reviewing pod security.