Blog
Notes on building software, scaling teams, and shipping product.
AI EngineeringThe Memory Architecture Behind chays.ai: Tiered State, Not a Growing Prompt
The tiered memory architecture behind chays.ai — core, recall, and archival layers that summarize context instead of re-sending it, and the token math that makes it survive the Agent SDK cap.
8 min#AI Engineering#AI Agents#Memory#Prompt Caching
AI EngineeringAnthropic's Agent SDK Billing Splits on June 15 — Rearchitect Before the Cap Hits
Anthropic moves the Claude Agent SDK to a separate metered credit pool on June 15, 2026 — a five-step rearchitecture I'm running on chays.ai and Freya Coach before the cap kicks in.
9 min#AI Engineering#Claude#Agent SDK#Prompt Caching
Cloud & DevOpsWhy I Run Keaz on Docker Swarm, Not Kubernetes
Why I picked Docker Swarm over Kubernetes for Keaz's twelve services in production — the three signals that say switch, and the budget math that says "not yet."
8 min#Cloud#DevOps#Kubernetes#Docker Swarm
SaaS PlatformHow I'd Architect Multi-Tenant Postgres for a SaaS in 2026
Postgres row-level security, the seven footguns that leak tenant data, and a seven-point checklist before you ship your next multi-tenant feature.
8 min#SaaS Architecture#Postgres#Multi-Tenant#Row-Level Security
AI EngineeringHow I Wire Claude Code Into a Real SaaS Codebase (and Where It Breaks)
Five guardrails for wiring Claude Code into a real SaaS codebase, where the loop actually breaks, and what it does to a CTO's planning math.
8 min#AI Engineering#Claude Code#Agent SDK#CTO
SaaS PlatformWhen to Hire a Fractional CTO vs. a Senior Engineer
A four-question decision tree for founders weighing a fractional CTO against a senior engineer hire — with cost ranges and timing.
8 min#Fractional CTO#Founder Strategy#Hiring#CTO