Adding New Message Types Guide

Use this guide to add a new message type to the safe-output messages system so it works in frontmatter, compiler parsing, JavaScript, and bundling.

Overview

The messages system lets workflow authors customize safe-output messages. Message flow:

1. Frontmatter (YAML) → 2. JSON Schema → 3. Go Compiler → 4. JavaScript Modules → 5. Bundler

Step 1: Update JSON Schema

Add the new message field to pkg/parser/schemas/main_workflow_schema.json in the messages object: