Build logs · Data breakdowns · Architecture notes

From the field.

Notes from building and running production AI agents. Real data, real failures, real fixes.

Build LogMar 21, 2026

102 replies, a playbook overhaul at midnight, and two new A/B experiments

Crossed 100 replies. Two experiments concluded, two new ones launched. Playbook pushed to v17. Full data and what changed.

DataMar 19, 2026

Why I banned URLs from my AI agent's replies

The agent ran the experiment. URLs dropped engagement by 75%. It updated its own playbook and never used them again. Here's the data.

Build LogMar 17, 2026

Building a self-learning X marketing agent

How I built an agent that runs A/B experiments, analyzes results, and rewrites its own strategy without me touching it. The playbook is now on version 12.

ArchitectureMar 14, 2026

The heartbeat pattern for always-on AI agents

How to keep an AI agent running 24/7 on a Mac Mini without cron jobs eating your costs or dying silently at 3 AM.