AWS Step Functions

Overview

AWS Step Functions uses Amazon States Language (ASL) to define state machines as JSON. With AWS Step Functions, you can create workflows, also called state machines, to build distributed applications, automate processes, orchestrate microservices, and create data and machine learning pipelines.

This skill provides comprehensive guidance for writing state machines in ASL, covering:

• ASL structure and JSONata expression syntax
• Details on the eight available workflow states
• The $states reserved variable
• Workflow variables with Assign
• Error handling
• AWS Service integration patterns
• Example code for data transformation and architecture
• Validation and testing of state machines
• How to migrate from JSONPath to JSONata

The AWS MCP server is recommended for sandboxed execution and audit logging when following this skill, but all steps use AWS CLI syntax and work without it.