Observed arrival · 2026-09-16

Simon Dadia's build gate

simondadia.com Observed source

Editorial interest 78/100 Selection signal · not a rating of the site

A personal technical site documenting a fail-closed supervisor for AI coding agents, alongside Simon Dadia's automation work and operating rules.

Landing page captured for the 2026-09-16 issue.

Field notes

The site describes a PreToolUse hook that places a frozen SPEC.md between an AI coding agent and filesystem writes. Its stated control path checks scope, sends uncertainty to a reviewer, and denies the operation rather than guessing; credentialed scripts are hash-verified before execution. The page reports 512 passing tests and says mutation testing is used to break the guard deliberately. Whether the tool itself can be obtained from the page is not shown.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

◉HumanPersonal, local, civic, or handmade

One card from the complete issue

Wiring Is Not Learning

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