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Expletus notes

Clear writing about software decisions.

Practical articles for people deciding what to build, what to automate, and what needs care after launch. Human first, useful second, technically credible third.

MCP

MCP is a protocol, not an agent architecture

An opinionated technical look at what Model Context Protocol standardizes, what it deliberately leaves open, and where production systems still need strong architecture.

MCPAI agentsProtocolsSecurity
AI Predictions

One-trillion-token context will arrive before perfect memory

A forecast for 2028–2030: trillion-token context becomes practical, while selection, memory, provenance, latency, and attention remain harder engineering problems.

Long contextAI predictionsMemoryLLM architecture
Context Engineering

Context engineering is the real AI interface

A technical view of context as a managed runtime: what to include, what to omit, how to preserve state, and why a larger window does not solve context design.

Context engineeringLLMsMemoryAI systems
AI Architecture

RAG is a data system, not a prompt trick

Why reliable retrieval-augmented generation depends more on document structure, retrieval policy, evaluation, and access control than on a clever prompt.

RAGRetrievalAI architectureEvaluation
AI Strategy

Should I use AI for this business process?

A practical decision guide for when AI is useful, when it is overkill, and how to think about cost, privacy, hallucinations, and ROI.

should I use AIAI ROIAI privacybusiness automation
SEO

SEO that helps better customers find you

A plain-English guide to classic SEO, technical SEO, local SEO, performance, and structured data for websites that need more qualified leads.

SEOtechnical SEOlocal SEOlead generation
Headless Websites

Headless websites explained without the jargon

A practical guide to headless CMS, frontend frameworks, faster websites, flexible content APIs, and when a headless website makes sense.

headless websitesheadless CMSfrontend frameworkscontent APIs
Content Workflow

Content workflows that help teams publish faster

A practical guide to CMS structure, approval flows, reusable content blocks, automation, and agile content workflows for growing teams.

content workflowsCMSapproval flowspublishing automation
Performance

Website performance is a lead-generation problem

A practical guide to Core Web Vitals, image optimization, video optimization, mobile speed, and why faster websites convert more visitors into leads.

website performanceCore Web Vitalsmobile speedlead generation
Analytics

Analytics and tracking for lead generation websites

A practical guide to GA4, privacy-friendly analytics, event tracking, conversion tracking, dashboards, and measuring the leads that matter.

analyticsGA4conversion trackinglead generation