Prune Tests

Reduce test-suite cost without weakening meaningful protection.

Keep

Keep a test only when it uniquely protects:

• A durable contract through a stable seam.
• A confirmed regression that remains possible.
• A critical security, permissions, compatibility, concurrency, migration, protocol, or data-loss invariant.

A seam may be an API, CLI, module interface, protocol, workflow, or artifact boundary.

Workflow