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tutorial_in_60_mins.propagate_docker_changes

tutorial_in_60_mins.propagate_docker_changes is a skill for Claude Code from gpsaggese/helpers. It costs 11 tokens per session (484 once invoked), scanned A, original, Apache-2.0.

A Docker-file synchronisation tool for a tutorial's project template and its class projects. Docker files describe how to build and run software in isolated environments.

In plain words
What is it for?
Use it to update Dockerfiles, shell scripts, and Jupyter startup scripts across tutorial projects, while summarising uncertain changes for confirmation.
Why use it?
It removes repetitive editing when shared Docker setup changes in the template. It can either sync all matching files or propagate only the latest template commit.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

not rated 158repo +1 today A scan 11 tokens original Apache-2.0

Good fit Use it to update Dockerfiles, shell scripts, and Jupyter startup scripts across tutorial projects, while summarising uncertain changes for confirmation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gpsaggese/helpers/tutorial_in_60_mins.propagate_docker_changes
View source ↗ gpsaggese/helpers
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 gpsaggese/helpers --skill tutorial_in_60_mins.propagate_docker_changes
Clone the repo
git clone --depth 1 https://github.com/gpsaggese/helpers

Made for: Claude Code.

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.

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README.md
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Your own site
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Your own site · 80×15
<a href="https://agentmods.dev/skills/gpsaggese/helpers/tutorial_in_60_mins.propagate_docker_changes"><img src="https://agentmods.dev/badge/skills/gpsaggese/helpers/tutorial_in_60_mins.propagate_docker_changes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 484 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.
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 $0.00011 $0.00484
Opus 5.5 $0.00004 $0.00194
Sonnet 5.5 $0.00002 $0.00097
Haiku 4.5 $0.00001 $0.00048

Measured yesterday against content hash f3382e1e968c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tutorial_in_60_mins.propagate_docker_changes 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 yesterday.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/skills/tutorial_in_60_mins.propagate_docker_changes/SKILL.md · 52 lines

What it actually says

Overview

  • <SRC_DIR> = class_project/project_template

This skill supports two modes:

  • Full sync: Make all Docker files across projects match project_template
  • Last-commit sync: Propagate only the changes from the most recent commit in project_template

Mode A: Full sync

  • Find each target directory <DST_DIR>: every directory under class_project/ (other than <SRC_DIR> itself) that already has a Dockerfile 
    > find class_project -mindepth 2 -maxdepth 2 -name Dockerfile \
    -not -path "class_project/project_template/*"
  • For each <DST_DIR> found this way, make the Docker files <DST_DIR>/docker_*.sh, <DST_DIR>/Dockerfile, <DST_DIR>/run_jupyter.sh as similar as possible to the corresponding ones in <SRC_DIR>
    • The goal is to reuse functions and factored out code (e.g., from class_project/project_template/utils.sh)
  • If you are not sure about what the changes are
    • Summarize the changes for the user in bullet points
    • Ask the user to confirm

Mode B: Last-commit sync

  • Use this mode when you only need to propagate the most recent changes

Check the Last Commit

  • Look at the changes from the last git commit in <SRC_DIR>
  • Summarize the changes for the user in bullet points
  • If you are not sure about what the changes are, stop and ask the user to confirm

Propagate the Changes

  • Propagate the changes in the Docker system from <SRC_DIR> to every <DST_DIR> found via the find command in Mode A

Preserve Behavior

  • Make sure not to change the behavior unless needed

Update the Docker Docs

  • Update class_project/project_template/docker_scripts.README.md explaining how this project uses Docker to build and execute containers given the new changes

Verification (both modes)

  • All the docker_*.sh scripts work, run either directly or through the relevant pytest unit tests
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. yesterday First seen · 52 lines · 11 tokens per session scan A f3382e1e968c

Subscribe to this mod's changes

tutorial_in_60_mins.propagate_docker_changes is a skill published in the GitHub repository gpsaggese/helpers (158 stars, last pushed today), licensed Apache-2.0. It adds 11 tokens to every session and 484 once invoked, about $0.0000 per session on Opus 5.5. 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 2026-11-06.

ContainersDevOps and cloud
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tutorial_in_60_mins.propagate_docker_changes next to 6 skills from other repositories
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