Extensibility Model

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

Extension Rules

• extend the package when the change adds or clarifies durable contract meaning
• prefer downstream policy packages for heuristics, ranking, or lab workflow decisions
• keep new adapters narrow so runtime dependence remains legible

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