Extensibility Model

A good extension point in bijux-proteomics-knowledge makes future change cheaper without obscuring who still owns the result. A bad one turns the package into a generic hook system.

Extension Rules

• add concepts here only when they are canonical knowledge concepts rather than downstream policy
• prefer explicit review or resolution paths over hidden precedence rules
• new extension points should make contradiction handling easier to inspect

First Proof Check

• the modules exposing extension points
• tests that prove extension behavior stays inside the package boundary
• neighboring handbooks if the extension changes a cross-package contract