the art of simplicity

Writing about software, food, life.

Two Ways to Stop Your Coding Agent Burning Tokens: RTK and CodeGraph

Two open-source tools both hit ~60k GitHub stars in five months by attacking the same problem from opposite ends: AI coding agents spend most of their tokens on plumbing, not thinking. RTK compresses the output; CodeGraph eliminates the discovery.

Posted by the art of simplicity on Sunday, June 28, 2026

Britain, Bottom to Top: History and Wild Beauty 🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿

Two weeks driving from London to Edinburgh for our 30th anniversary - the Roman Baths, the Ultra-Trail Snowdonia (UTMB) 25K, the Isle of Skye's wind, Highland cows, and Coy finally playing the Old Course at St Andrews.

Posted by the art of simplicity on Sunday, May 31, 2026

Mud, Mist, and Mountains: The UTMB Snowdonia 25K

Racing the UTMB Snowdonia 25K (Ultra-Trail Snowdonia by UTMB) in Eryri National Park, Wales - 4,600 feet of climbing, a strict mandatory gear check, a soaked and muddy course, and a warning about waterproof jackets.

Posted by the art of simplicity on Sunday, May 17, 2026

The Harness Engineering Cheat Sheet

A quick comparative tour through how OpenAI, Anthropic, Google, Microsoft, Shopify, and Stripe each approach the same problem: keeping coding agents on the rails.

Posted by the art of simplicity on Tuesday, April 28, 2026

I Built an AI Ultrarunner to QA My App

How I set up a Claude Code agent to explore my race tracking app as a real user every week — and it found real bugs on its first run.

Posted by the art of simplicity on Wednesday, March 11, 2026