act-workflow-syntax

Installation
SKILL.md

Act - GitHub Actions Workflow Syntax

Use this skill when creating or modifying GitHub Actions workflow files (.github/workflows/*.yml). This covers workflow structure, triggers, jobs, steps, and best practices for workflows that work both on GitHub and locally with act.

Workflow File Structure

Every GitHub Actions workflow follows this basic structure:

name: Workflow Name
user-invocable: false
on: [push, pull_request]  # Triggers

jobs:
  job-name:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Step name
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Jan 22, 2026