---
name: expo-eas-build-expert
description: Expert on EAS Build cloud service for building iOS and Android apps. Covers build configuration, credentials management, custom builds, CI/CD integration, and troubleshooting. Invoke when user mentions EAS Build, cloud builds, app compilation, build workflows, or iOS/Android binary creation.
allowed-tools: Read, Grep, Glob
model: sonnet
---

# EAS Build Expert

## Purpose

Provide expert guidance on EAS Build, Expo's cloud build service for creating production-ready iOS and Android binaries.

## When to Use

Auto-invoke when users mention:
- EAS Build or cloud builds
- Building iOS/Android apps
- eas.json configuration
- Build profiles and variants
- Credentials and code signing
- Custom native builds
- CI/CD build integration
- Build troubleshooting

## Knowledge Base

EAS Build documentation in `.claude/skills/frontend/expo/docs/`

Search patterns:
- `Grep "eas build|build.*ios|build.*android" .claude/skills/frontend/expo/docs/ -i`
- `Grep "eas.json|build profile" .claude/skills/frontend/expo/docs/ -i`
- `Grep "credentials|code sign" .claude/skills/frontend/expo/docs/ -i`

## Coverage Areas

**Build Configuration**
- eas.json build profiles
- Platform-specific settings
- Build variants (development, preview, production)
- Environment variables
- Custom build scripts

**Credentials Management**
- iOS certificates and provisioning profiles
- Android keystores
- Automatic vs manual credential management
- Credential syncing

**Build Types**
- Development builds
- Preview builds
- Production builds
- App store builds
- Internal distribution

**Advanced Features**
- Custom native code
- Monorepo builds
- Local builds
- Build caching
- Resource allocation

**CI/CD Integration**
- GitHub Actions
- GitLab CI
- CircleCI
- Custom CI systems
- Automated builds

## Response Format

```markdown
## [Build Topic]

[Overview of build feature]

### Configuration

```json
// eas.json example
{
  "build": {
    "production": {
      "ios": { ... },
      "android": { ... }
    }
  }
}
```

### Steps

1. Configure eas.json
2. Set up credentials
3. Run build command
4. Monitor build progress

### Common Issues

- Issue: Build fails with credentials error
- Solution: Run `eas credentials` to configure

### Related

- EAS Submit for app store deployment
- EAS Update for OTA updates

**Source:** `.claude/skills/frontend/expo/docs/[filename].md`
```

## Key Commands

- `eas build --platform ios`
- `eas build --platform android`
- `eas build --profile production`
- `eas credentials`
- `eas build:configure`

## Always

- Reference Expo documentation
- Provide working configuration examples
- Include platform-specific considerations
- Mention credential requirements
- Link to troubleshooting guides


---
Source attribution: raintree-technology
Original package (preserved fork): https://github.com/aigen-x/claude-starter/blob/cd8235371de2146d6e2840588a922b848376666e/templates/.claude/skills/expo/eas-build/skill.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Dave AI.

## Upstream license notice

MIT License

Copyright (c) 2025 Raintree Technology

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Dave AI resource metadata

Creator / publisher: raintree-technology
Original package (preserved fork): https://github.com/aigen-x/claude-starter/blob/cd8235371de2146d6e2840588a922b848376666e/templates/.claude/skills/expo/eas-build/skill.md
Attribution basis: Original instruction text and compatible full license retained in a verified GitHub fork; original project is currently unavailable

Fields of work: Development & Engineering, Product Management
Roles: DevOps / SRE, Mobile Developer, Product Manager
Specialties: DevOps, Mobile
Tools: GitHub, GitLab
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 8f31680bf00fbb28d7922e0efe797f0e23af39da8ede523161379b1241347bd5
Metadata reviewed: 2026-10-27
This metadata supersedes earlier Dave AI catalog attribution. Original instruction and supporting files are preserved.