containerization-plan

containerization-plan is a skill for Codex from jeremylongworth-source/AgentSkills. It costs 54 tokens per session (319 once invoked), scanned A, original, MIT.

A planning guide for packaging an application or service into a container, a portable environment that includes its software and dependencies.

In plain words
What is it for?
It helps plan Dockerfiles, container images, Compose files, ports, volumes, health checks, runtime users, logging, and secret handling.
Why use it?
It helps avoid inconsistent setups between development, testing, and deployment while addressing configuration, security, and operational risks.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions Codex.

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.

agentmods
npx agentmods add skills/jeremylongworth-source/agentskills/containerization-plan
Any agent
npx skills add jeremylongworth-source/AgentSkills --skill containerization-plan
Clone the repo
git clone --depth 1 https://github.com/jeremylongworth-source/AgentSkills

Made for: 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 containerization-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/jeremylongworth-source/agentskills/containerization-plan.svg)](https://agentmods.dev/skills/jeremylongworth-source/agentskills/containerization-plan)
Your own site
<a href="https://agentmods.dev/skills/jeremylongworth-source/agentskills/containerization-plan"><img src="https://agentmods.dev/badge/skills/jeremylongworth-source/agentskills/containerization-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 319 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00054 $0.00319
Opus 5 $0.00027 $0.00160
Sonnet 5 $0.00011 $0.00064
Haiku 4.5 $0.00005 $0.00032

Measured 2d ago against content hash 8efbd18474bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

containerization-plan 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 2d 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.

skills/containerization-plan/SKILL.md · 44 lines

What it actually says

Containerization Plan

Core Workflow

  1. Identify app runtime, build process, target environment, ports, volumes, secrets, healthchecks, and deployment constraints.
  2. Choose image strategy: base image, multi-stage build, dependency caching, non-root user, filesystem layout, and startup command.
  3. Define runtime config: env vars, secrets, volumes, network, healthcheck, resource limits, and logs.
  4. Review size, reproducibility, security, and local development needs.
  5. Include build, run, smoke test, and publish steps.
  6. Flag risks before creating production images.

Safety Rules

  • Do not bake secrets, tokens, private keys, or local paths into images.
  • Do not run containers as root by default when a non-root runtime is practical.
  • Do not publish images or push registries without explicit approval.

Deliverable Shape

For containerization plans, provide:

  • Runtime and target environment
  • Image build strategy
  • Runtime configuration
  • Security and secret handling
  • Healthcheck and logging
  • Build/run/test commands
  • Registry and release notes
  • Open risks

References

  • Read references/containerization-plan-checklist.md when planning or reviewing container setup.
Files

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.

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. 2d ago First seen · 44 lines · 54 tokens per session scan A 8efbd18474bb

Subscribe to this mod's changes

containerization-plan is a skill published in the GitHub repository jeremylongworth-source/AgentSkills (1 stars, last pushed 3d ago), licensed MIT. It adds 54 tokens to every session and 319 once invoked, about $0.0003 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 2026-09-03.

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