State machines for AI agents: when should you use one?
4 signs your AI agent needs explicit states. Model TypeScript transitions, limit tools, and test the flow without treating the model as deterministic.
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Software Architecture
8 articles · practical guides & tutorials by Samuel Fajreldines
In-depth Software Architecture articles, hands-on guides and tutorials by Samuel Fajreldines — 8 expert posts on Software Architecture for software engineers.
Articles in Software Architecture
Durable execution for AI agents: queue or workflow?
Learn when AI agents need durable execution, checkpoints, queues, or workflows to resume safely after failures and retries in production with clear trade-offs.
Multi-Agent Orchestration for Coding Agents with TypeScript
Build multi-agent orchestration in TypeScript and PostgreSQL with durable state, leases, retries, and verification for Codex and Claude Code workflows.
How to Organize Services in an MSC Architecture with TypeScript for Scalability and Clarity
A comprehensive guide on structuring services in an MSC (Model-Service-Controller) architecture using TypeScript, exploring whether to align services by model,…
Mastering Transactions in Modern Software Engineering
Explore best practices for implementing transactions across Node.js, PHP, and Cloud environments.
Implementing Event-Driven Architecture with AWS and Node.js
Learn how to implement an event-driven architecture using AWS services and Node.js to build scalable and efficient applications.
Backend System Architecture: Why the Model-Controller-Service Pattern Reigns Supreme
A comprehensive guide to designing scalable and maintainable backend systems in TypeScript using the Model-Controller-Service architecture pattern.
How to Effectively Use Controllers, Models, Services, and More
Learn how to optimize your application architecture by effectively using controllers, models, services, and other key components.