Skip to content
expo-cicd-workflows logo

EAS Workflows Skill

expo-cicd-workflows

Helps understand and write EAS workflow YAML files for Expo projects. Use this skill when the user asks about CI/CD or workflows in an Expo or EAS context, mentions .eas/workflows/, or wants help with EAS build pipelines or deployment automation.

aiskillstore/marketplace0installs430stars

SKILL.md

Full skill instructions

EAS Workflows Skill

Help developers write and edit EAS CI/​CD workflow YAML files.

Reference Documentation

Fetch these resources before generating or validating workflow files. Use the fetch script (implemented using Node.js) in this skill's scripts/ directory; it caches responses using ETags for efficiency:

# Fetch resources
node {baseDir}/​scripts/​fetch.js <url>
  1. JSON Schema — https://api.expo.dev/v2/workflows/schema

    • It is NECESSARY to fetch this schema
    • Source of truth for validation
    • All job types and their required/​optional parameters
    • Trigger types and configurations
    • Runner types, VM images, and all enums
  2. Syntax Documentation — https://raw.githubusercontent.com/expo/expo/refs/heads/main/docs/pages/eas/workflows/syntax.mdx

    • Overview of workflow YAML syntax
    • Examples and English explanations
    • Expression syntax and contexts
  3. Pre-packaged Jobs — https://raw.githubusercontent.com/expo/expo/refs/heads/main/docs/pages/eas/workflows/pre-packaged-jobs.mdx

    • Documentation for supported pre-packaged job types
    • Job-specific parameters and outputs

Do not rely on memorized values; these resources evolve as new features are added.

Workflow File Location

Workflows live in .eas/​workflows/​*.yml (or .yaml).

Top-Level Structure

A workflow file has these top-level keys:

  • name — Display name for the workflow
  • on — Triggers that start the workflow (at least one required)
  • jobs — Job definitions (required)
  • defaults — Shared defaults for all jobs
  • concurrency — Control parallel workflow runs

Consult the schema for the full specification of each section.

Expressions

Use ${{ }} syntax for dynamic values. The schema defines available contexts:

  • github.* — GitHub repository and event information
  • inputs.* — Values from workflow_dispatch inputs
  • needs.* — Outputs and status from dependent jobs
  • jobs.* — Job outputs (alternative syntax)
  • steps.* — Step outputs within custom jobs
  • workflow.* — Workflow metadata

Generating Workflows

When generating or editing workflows:

  1. Fetch the schema to get current job types, parameters, and allowed values
  2. Validate that required fields are present for each job type
  3. Verify job references in needs and after exist in the workflow
  4. Check that expressions reference valid contexts and outputs
  5. Ensure if conditions respect the schema's length constraints

Validation

After generating or editing a workflow file, validate it against the schema:

# Install dependencies if missing
[ -d "{baseDir}/​scripts/​node_modules" ] || npm install --prefix {baseDir}/​scripts

node {baseDir}/​scripts/​validate.js <workflow.yml> [workflow2.yml ...]

The validator fetches the latest schema and checks the YAML structure. Fix any reported errors before considering the workflow complete.

Answering Questions

When users ask about available options (job types, triggers, runner types, etc.), fetch the schema and derive the answer from it rather than relying on potentially outdated information.

More skills from aiskillstore

docx logo
aiskillstore/marketplace

docx

Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks

430 216
View
agent-development logo
aiskillstore/marketplace

agent-development

This handles everything around building autonomous agents for Claude Code plugins.

430 197
View
doc-coauthoring logo
aiskillstore/marketplace

doc-coauthoring

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.

430 196
View
skill-development logo
aiskillstore/marketplace

skill-development

This is the meta-skill for building skills themselves.

430 196
View
canvas-design logo
aiskillstore/marketplace

canvas-design

Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.

430 193
View
webapp-testing logo
aiskillstore/marketplace

webapp-testing

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

430 191
View
hook-development logo
aiskillstore/marketplace

hook-development

Helps you build event-driven automation for Claude Code using hooks that trigger on tool use, session events, and stop conditions.

430 187
View
algorithmic-art logo
aiskillstore/marketplace

algorithmic-art

Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.

430 185
View
command-development logo
aiskillstore/marketplace

command-development

Shows Claude Code how to build slash commands from markdown files, covering the YAML frontmatter options, dynamic arguments with $1/$2...

430 185
View
plugin-structure logo
aiskillstore/marketplace

plugin-structure

This is your reference when scaffolding Claude Code plugins or figuring out why components aren't loading.

430 183
View
skill-installer logo
aiskillstore/marketplace

skill-installer

Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos).

430 180
View
web-artifacts-builder logo
aiskillstore/marketplace

web-artifacts-builder

Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.

430 177
View

Popular AI tools

Kaiber logo
Video

Kaiber

Generate, edit, and beat-sync AI video with leading models in one workspace.

Paid
View
Vimcal logo
Productivity

Vimcal

The world's fastest calendar for remote work

Free
View

Transform Your Design with AI Designer by ImgCreator.ai

Freemium
View
Akool AI logo
Content & writing

Akool AI

Revolutionizing Video Production with AI-Powered Creativity

Paid
View

Extend an image past the frame and let AI fill the new aspect ratio.

Freemium
View
StarByFace logo
Security

StarByFace

Discover your celebrity doppelgänger with StarByFace!

Free
View
C

ChainClarity explains 700+ crypto whitepapers in plain English, with layered summaries, comparisons, research tools, alerts, and a $4.99 Pro plan.

Freemium
View
Opus Clip logo
Coding & apps

Opus Clip

Opus.ai: Revolutionize Your Web Experience

Free
View