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Fitness Functions

2 posts tagged. Browse all tags

Aug 8, 2026

Tropism: Architecture the Agentic Loop Can Actually Check

Types made “this value is a string” checkable. Tests made behaviour checkable. Nothing ever made “the API layer must not talk to the data layer” checkable — cheaply, across …

May 23, 2026

The Agentic Inner Loop: Sensors, Substrate, and Skills for Polyglot Development

The developer inner loop — edit, build, test, debug — is the highest-leverage piece of any engineering team’s workflow. It runs hundreds of times a day per developer. Shaving seconds off it …

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© 2026 Graham Brooks. All rights reserved.