https://appriddle.com/insights AppRiddle builds enterprise AI systems you can measure, and the platform and cloud engineering that keeps them running. Evaluated from the first commit. en Sun, 30 Aug 2026 00:00:00 GMT https://appriddle.com/insights/pay-for-an-agent-where-steps-are-unpredictable https://appriddle.com/insights/pay-for-an-agent-where-steps-are-unpredictable Sun, 30 Aug 2026 00:00:00 GMT You are choosing between a system that decides what to look up once and one that decides on every step. At list prices, eight steps bill roughly ten times more. Agents RAG Cost Tool use Prompt injection https://appriddle.com/insights/microservices-when-and-when-not https://appriddle.com/insights/microservices-when-and-when-not Thu, 30 Jul 2026 00:00:00 GMT Service count is not the goal — independent deployability is, and the two are frequently unrelated. A decision framework, the arithmetic a network boundary adds, and the five situations where the correct answer is one service. Architecture Microservices Modular monolith Team topology https://appriddle.com/insights/enterprise-cloud-observability https://appriddle.com/insights/enterprise-cloud-observability Sun, 26 Jul 2026 00:00:00 GMT The three questions an on-call engineer actually needs answered, the signals that answer them, and why your bill is set by cardinality and retention rather than traffic. With Collector config, burn-rate alerts, and list prices from six platforms. Observability OpenTelemetry Cost control SLOs https://appriddle.com/insights/multi-tenant-saas-foundations https://appriddle.com/insights/multi-tenant-saas-foundations Tue, 14 Jul 2026 00:00:00 GMT Tenancy model, row-level isolation, SSO and RBAC, metering, and an audit log that survives examination — with the migrations, the connection-pool trap that defeats RLS, and the test that tries to leak. Multi-tenancy PostgreSQL RBAC Audit https://appriddle.com/insights/staged-path-to-multi-region-aws https://appriddle.com/insights/staged-path-to-multi-region-aws Tue, 09 Jun 2026 00:00:00 GMT Four stages, each removing one named failure mode, with the RTO and RPO each one actually buys. Most teams should stop at stage two — here is how to tell whether you are one of them. AWS Resilience Terraform Aurora https://appriddle.com/insights/rag-architecture-enterprise-knowledge https://appriddle.com/insights/rag-architecture-enterprise-knowledge Tue, 12 May 2026 00:00:00 GMT Chunking, hybrid retrieval, reranking, and the evaluation harness that decides whether any of it worked. With the pgvector schema and the CI gate we actually ship. RAG pgvector Evaluation Retrieval