# GitHub Actions Matrix Strategy Builder

> Generates optimized GitHub Actions workflow matrices using the actions/setup-node, actions/cache, and actions/upload-artifact APIs. Automatically detects language versions and OS combinations for maximum CI coverage.

- Skill: `agentskillexchange/github-actions-matrix-strategy-builder` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentskillexchange/github-actions-matrix-strategy-builder`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/github-actions-matrix-strategy-builder/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/agentskillexchange/github-actions-matrix-strategy-builder

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# GitHub Actions Matrix Strategy Builder

Generates optimized GitHub Actions workflow matrices using the actions/setup-node, actions/cache, and actions/upload-artifact APIs. Automatically detects language versions and OS combinations for maximum CI coverage.

## Prerequisites

GitHub Actions, actions/setup-node, actions/cache, actions/upload-artifact

## Installation

Use the upstream install or setup path that matches your environment:
- Make sure your runner is on version v2.327.1 or later to ensure compatibility with this release. [See Release Notes](https://github.com/actions/runner/releases/tag/v2.327.1)

Requirements and caveats from upstream:
- [![basic-validation](https://github.com/actions/setup-node/actions/workflows/basic-validation.yml/badge.svg)](https://github.com/actions/setup-node/actions/workflows/basic-validation.yml)
- [![versions](https://github.com/actions/setup-node/actions/workflows/versions.yml/badge.svg)](https://github.com/actions/setup-node/actions/workflows/versions.yml)
- [![e2e-cache](https://github.com/actions/setup-node/actions/workflows/e2e-cache.yml/badge.svg?branch=main)](https://github.com/actions/setup-node/actions/workflows/e2e-cache.yml)

Basic usage or getting-started notes:
- This action provides the following functionality for GitHub Actions users:
- Optionally caching npm/yarn/pnpm dependencies
- Registering problem matchers for error output

- Source: https://github.com/actions/setup-node
- Extracted from upstream docs: https://raw.githubusercontent.com/actions/setup-node/HEAD/README.md

## Documentation

- https://github.com/actions/setup-node#readme

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/github-actions-matrix-strategy-builder/)