Analyzes GitHub Actions workflow YAML files and optimizes matrix strategies using the actions/setup-node and actions/cache APIs. Reduces redundant job combinations by inspecting build dependency graphs via the GitHub REST API. Outputs a revised workflow with estimated CI time savings per commit.
Scanned 6/8/2026
Install via CLI
openskills install agentskillexchange/skills---
name: "GitHub Actions Matrix Build Optimizer"
slug: "github-actions-matrix-build-optimizer"
description: "Analyzes GitHub Actions workflow YAML files and optimizes matrix strategies using the actions/setup-node and actions/cache APIs. Reduces redundant job combinations by inspecting build dependency graphs via the GitHub REST API. Outputs a revised workflow with estimated CI time savings per commit."
verification: "security_reviewed"
source: "https://docs.github.com/en/actions"
author: "GitHub"
category: "CI/CD Integrations"
framework: "Claude Code"
---
# GitHub Actions Matrix Build Optimizer
Analyzes GitHub Actions workflow YAML files and optimizes matrix strategies using the actions/setup-node and actions/cache APIs. Reduces redundant job combinations by inspecting build dependency graphs via the GitHub REST API. Outputs a revised workflow with estimated CI time savings per commit.
## Prerequisites
GitHub repository with Actions enabled
## Installation
Use the upstream install or setup path that matches your environment:
- Docker to Azure App Service
- Use Docker service containers
- Make a contribution Learn how to contribute
Requirements and caveats from upstream:
- Deploy to third-party platforms Node.js to Azure App Service
- Python to Azure App Service
- Node.js
Basic usage or getting-started notes:
- Billing and usage
- Choose when workflows run Trigger a workflow
- Choose where workflows run Choose the runner for a job
- Source: https://docs.github.com/en/actions
## Documentation
- https://docs.github.com/en/actions
## Source
- [Agent Skill Exchange](https://agentskillexchange.com/skills/github-actions-matrix-build-optimizer/)
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Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra, wenyan-lite, wenyan-full, wenyan-ultra. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes /caveman. Also auto-triggers when token efficiency is requested.