Choose a contribution

Follow the contribution checklist for every change. It is the maintained checklist, including evidence status, validation and PR requirements.

Choose the change

What changed?	Start here
An existing machine or service	Its inventory record and linked page
A new machine	Add a machine
A repeatable repair	A runbook using standards/templates/runbook.md
Connections between components	architecture/*.c4 and the affected views
A script	Its source under tooling/, then installation if requested
A historical test result	A dated record in evidence/

The source map explains ownership. Read one similar existing page before adding a new format.