// blog

Writing about the things we build and break.

engineering8 min

Nobody Marks Their Own Homework

At half past three in the morning a coding agent improved the harness it works in, sent its own change to an independent reviewer, reproduced the reviewer's finding and fixed it before the next scheduled run. No human wrote, reviewed or corrected any of it. This is how the harness is built.

engineering5 min

A Job Should Survive Its Agent

A directory check stopped us reopening our own task.

research11 min

The Cloud Was a Phase

What a local inference box suggests about the falling cost of capable models

engineering11 min

The Workhorse Comes Home

A local inference box and the 28-second test that found a silent harness failure

engineering8 min

And Then There Were Graphs

We Took a Twelve-Word Meme Seriously. It Cost Five Million Tokens.

ai11 min

Verified Public Facts

research48 min

Beyond Model Leaderboards

A Protocol Paper and Design History for Auditable Coding-Agent Tournaments

research8 min

Beyond Model Leaderboards: The Operational Supplement

Adaptation Checklist, Reference Parameters and Publication Source Map

engineering36 min

The King Is Dead. Long Live the King. Until Tuesday.

What a 608-Row Tournament, a 28-Assignment Shakeout and 96 Follow-Up Executions Taught Us About Building an AI Workshop at Frontier Speed

engineering16 min

When Washington Is Your Landlord

How to Survive the Geopolitical Enclosure of Frontier Models

engineering18 min

The Most Expensive Houseguest

engineering13 min

The Box We Built Anyway

engineering8 min

Checks That Run By Themselves

ai11 min

What I Stopped Doing With Claude

engineering11 min

Sharpening the Workshop

ai10 min

Six LLMs Walk Into My Codebase

ai11 min

Memory Redesign: Three Layers Instead of One

engineering8 min

What We Adopted From the Claude Code Leak

infrastructure10 min

Building a Full-Service PA with 24 MCP Tools

architecture8 min

Killing Anthill: Why We Retired Our Agent Orchestration System

product7 min

Scraping 6,234 Coaches: Building a Lead Database from Scratch

engineering9 min

CoachSync Goes Enterprise: 238 E2E Tests and Zero Excuses

infrastructure11 min

Greebo: One Server That Runs Everything

ai8 min

Memory Systems: Teaching Claude to Remember