container-operations

container-operations is a skill for Claude Code, Codex from metaspartan/cybara. It costs 28 tokens per session (248 once invoked), scanned A, original, MIT.

A guide for building and checking Docker or Podman containers, images, networks, volumes, and Compose-based application stacks. Containers package software with the files and settings it needs to run.

In plain words
What is it for?
Inspecting container setup, building images, starting required services, waiting for health checks, reviewing bounded logs, testing endpoints, and cleaning up project resources.
Why use it?
It helps diagnose startup, configuration, dependency, health-check, and deployment problems without exposing secrets or deleting shared resources.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Inspecting container setup, building images, starting required services, waiting for health checks, reviewing bounded logs, testing endpoints, and cleaning up project resources.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/metaspartan/cybara/container-operations
Install

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.

Any agent
npx skills add metaspartan/cybara --skill container-operations
Clone the repo
git clone --depth 1 https://github.com/metaspartan/cybara

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for container-operations

README.md
[![agentmods](https://agentmods.dev/badge/skills/metaspartan/cybara/container-operations.svg)](https://agentmods.dev/skills/metaspartan/cybara/container-operations)
Your own site
<a href="https://agentmods.dev/skills/metaspartan/cybara/container-operations"><img src="https://agentmods.dev/badge/skills/metaspartan/cybara/container-operations.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 248 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00028 $0.00248
Opus 5 $0.00014 $0.00124
Sonnet 5 $0.00006 $0.00050
Haiku 4.5 $0.00003 $0.00025

Measured 7d ago against content hash c98b7305ecb3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

container-operations 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 7d 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.

plugins/container-operations/skills/container-operations/SKILL.md · 26 lines

What it actually says

Container operations

Use the available container runtime for reproducible builds, local stacks, diagnostics, and deployment validation.

Workflow

  1. Detect the available runtime and inspect the repository's container and Compose files before running commands.
  2. Validate configuration, resolved environment, mounts, ports, health checks, and dependency ordering.
  3. Build with explicit tags and capture build failures from the first relevant error.
  4. Start the smallest required service set and wait on health rather than process existence.
  5. Inspect service status, bounded logs, resource usage, networks, and volumes when diagnosing failures.
  6. Exercise the exposed application endpoint and stop temporary resources when validation is complete.

Safety

  • Confirm before pruning global images, builders, volumes, or networks.
  • Never print secret environment values or copy credential files into an image.
  • Prefer project-scoped cleanup over global cleanup.
  • Preserve persistent volumes unless the user explicitly requests deletion.
Changes

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.

  1. 7d ago First seen · 26 lines · 28 tokens per session scan A c98b7305ecb3

Subscribe to this mod's changes

container-operations is a skill published in the GitHub repository metaspartan/cybara (28 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 248 once invoked, about $0.0001 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.