event-contract-generator

id	SKL-event-EVENTCONTRACTGENERATOR
name	Event Contract Generator
description	Automatically generates event contracts (schemas, types, validators) so that producers and consumers use the same event format. Ensures type safety and validation in event-driven architectures.
version	1.0.0
status	active
owner	@cerebra-team
last_updated	2026-02-22
category	Backend
tags	["api","backend","server","database"]
stack	["Python","Node.js","REST API","GraphQL"]
difficulty	Intermediate

Event Contract Generator

Skill Profile

(Select at least one profile to enable specific modules)

• DevOps
• Backend
• Frontend
• AI-RAG
• Security Critical

Overview

Automatically generates event contracts (schemas, types, validators) so that producers and consumers use the same event format. Ensures type safety and validation in event-driven architectures.

Why This Matters

• Type safety: TypeScript types from schema
• Validation: Auto-validate events
• Documentation: Auto-generated event catalog
• Versioning: Track schema changes

---

Core Concepts & Rules

1. Core Principles

• Follow established patterns and conventions
• Maintain consistency across codebase
• Document decisions and trade-offs

2. Implementation Guidelines

• Start with the simplest viable solution
• Iterate based on feedback and requirements
• Test thoroughly before deployment

Inputs / Outputs / Contracts

• Inputs:
  • Event name (e.g., user.created)
  • Event data structure
  • Version (optional, defaults to 1.0.0)
  • Producer/consumer information
• Entry Conditions:
  • Event-driven architecture is in use
  • Event bus/messaging system is configured
• Outputs:
  • JSON Schema file
  • TypeScript types file
  • Validator functions
  • Example events
  • Event catalog documentation
• Artifacts Required (Deliverables):
  • Event schema (JSON Schema)
  • TypeScript types
  • Validator functions
  • Event catalog entry
  • Example events
• Acceptance Evidence: