Guides

Field guides that pull related posts together, so you can start with a whole topic instead of one article.

• Spring Boot and Postgres: where the limits actually are

  One Spring Boot app, one Postgres: where a request really queues, what the connection pool gates, and how much search the database can do on its own.

• Spring Boot and OAuth2: a field guide for every surface

  Secure a Spring Boot app with OAuth2 across every surface: HTTP APIs, the gateway, and the message broker, all on one Keycloak and the same scopes.

• AI Agent Harnesses: A Field Guide

  What an AI agent harness is, how the generator-evaluator loop and check gates work, and how to build one, drawn from building ralphctl.