Creating Step Functions

Creating Step Functions

Overview

This skill documents how to create step functions in steps.ts for Output SDK workflows. Steps are where all I/O operations happen - HTTP requests, LLM calls, database operations, file system access, etc.

When to Use This Skill

• Implementing I/O operations for a workflow
• Adding HTTP client integrations
• Implementing LLM-powered steps
• Handling errors with FatalError and ValidationError
• Creating reusable step components

File Organization

Option 1: Flat File (Default)

For smaller workflows, use a single steps.ts file:

src/workflows/{workflow-name}/
├── workflow.ts
├── steps.ts         # All steps in one file
├── types.ts
└── ...

Option 2: Folder-Based (Large workflows)

For larger workflows with many steps, use a steps/ folder:

src/workflows/{workflow-name}/
├── workflow.ts
├── steps/           # Steps split into individual files
│   ├── fetch_data.ts
│   ├── process.ts
│   └── validate.ts
├── types.ts