How does this skill ensure my workflows won't break?

The skill performs a dual-check: it calculates historical runtimes to ensure jobs stay under the 15-minute limit and scans YAML files for incompatible features like Docker, heavy builds (Java/Go), or service containers.

Does the skill automatically commit changes to my repo?

No. The skill applies the changes to your local files and presents a git diff with a suggested commit message, leaving the final decision to commit or discard to the user.

What is ubuntu-slim and why should I use it?

ubuntu-slim is a lightweight, single-CPU GitHub-hosted runner. Using it for simple tasks like linting or issue automation reduces resource consumption and is optimized for short-running operations under 15 minutes.

Can I migrate jobs that use Docker?

No, ubuntu-slim is a container-based runner that does not support Docker commands (build, push, compose) or service containers. The skill will automatically mark these jobs as ineligible.

GitHub Actions Ubuntu Slim Migrator

Name: GitHub Actions Ubuntu Slim Migrator
Author: pokutuna

bypokutuna

배포 및 DevOps

Optimizes GitHub Actions workflows by migrating eligible jobs to lightweight ubuntu-slim runners for cost and resource efficiency.

소개

This skill automates the transition of GitHub Actions jobs from standard runners to the resource-efficient ubuntu-slim environment. It performs a rigorous two-phase analysis: first calculating historical runtime statistics to ensure tasks fit within the 15-minute timeout window, and second, scanning for incompatible patterns such as Docker services, heavy compilation, or memory-intensive operations. The skill generates a comprehensive migration plan, allows for user confirmation, and automates the workflow updates while maintaining safety through git diff previews.

주요 기능

Detailed migration reporting with clear eligibility justifications
Integrated git diff preview and commit message suggestions
Automated historical runtime analysis using mean plus two standard deviations
Automated YAML updates for 'runs-on' parameters in workflow files
Compatibility scanning for Docker, service containers, and high-resource patterns
0 GitHub stars

사용 사례

Transitioning simple PR automation and notification tasks to ubuntu-slim
Optimizing CI/CD costs by moving linting and formatting jobs to lightweight runners
Auditing repository workflows for resource-heavy patterns that impact performance

소개

주요 기능

Detailed migration reporting with clear eligibility justifications
Integrated git diff preview and commit message suggestions
Automated historical runtime analysis using mean plus two standard deviations
Automated YAML updates for 'runs-on' parameters in workflow files
Compatibility scanning for Docker, service containers, and high-resource patterns
0 GitHub stars

사용 사례

Transitioning simple PR automation and notification tasks to ubuntu-slim
Optimizing CI/CD costs by moving linting and formatting jobs to lightweight runners
Auditing repository workflows for resource-heavy patterns that impact performance