app

name	app
description	Initializes EB projects and manages Elastic Beanstalk applications, application versions, and version lifecycle rules. Use when user says "eb init", "eb appversion", "application versions", "version lifecycle", "list applications", "delete version", "initialize project", "create beanstalk app", "new eb application", or "my beanstalk apps". For environment operations use environment skill.
compatibility	Requires EB CLI (awsebcli) and AWS CLI with configured credentials.
license	MIT
allowed-tools	["Bash"]
metadata	{"author":"shinmc","version":"1.0.0"}

Application Management

Initialize projects, manage application versions, and configure version lifecycle using the EB CLI.

When to Use

• Initialize an EB project (eb init)
• List applications
• Manage application versions
• Configure version lifecycle rules

When NOT to Use

• Managing environments → use environment skill
• Deploying code → use deploy skill
• Checking status → use status skill

---

Initialize

eb init
eb init <app-name> --region <region> --platform "<platform>"

List Applications

aws elasticbeanstalk describe-applications \
  --query 'Applications[*].[ApplicationName,DateCreated]' --output table

Application Versions

eb appversion                            # List versions
eb appversion --delete <version-label>   # Delete version

Version Lifecycle

eb appversion lifecycle                  # Configure lifecycle rules

Or via AWS CLI:

aws elasticbeanstalk update-application-resource-lifecycle \
  --application-name <app-name> \
  --resource-lifecycle-config '{
    "VersionLifecycleConfig": {
      "MaxCountRule": {"Enabled": true, "MaxCount": 200, "DeleteSourceFromS3": true},
      "MaxAgeRule": {"Enabled": true, "MaxAgeInDays": 180, "DeleteSourceFromS3": true}
    },
    "ServiceRole": "arn:aws:iam::<account>:role/aws-elasticbeanstalk-service-role"
  }' --output json

.elasticbeanstalk/config.yml

eb init creates .elasticbeanstalk/config.yml in your project root. This file stores:

• Default application name and region
• Default environment
• Platform and branch settings

# .elasticbeanstalk/config.yml (auto-generated by eb init)
branch-defaults:
  main:
    environment: my-app-prod
global:
  application_name: my-app
  default_region: us-east-1
  default_platform: Node.js 22

Add .elasticbeanstalk/ to .gitignore if it contains environment-specific settings, or commit it for shared CI/CD workflows.

---

Composability

• Create environment: Use environment skill
• Deploy code: Use deploy skill
• Platform updates: Use maintenance skill

Additional Resources

• Platforms