Choose the change owner

Place a change where its behavior is owned, even when the first visible symptom appears elsewhere.

Start from the responsibility

Change	Start with
Matrix read model or command	Owning libs/data-access/ capability
Product page or workflow	Owning libs/feature/ library
Startup, recovery, or cross-capability coordination	libs/application/ owner
Semantic destination or history	Workspace
Reusable domain-neutral control	libs/components/
Projection, preference, or host primitive	libs/runtime/
Browser, Capacitor, or Electron implementation	libs/platform-native/, a libs/native/ plugin, or host project
Repository invariant	scripts/ or the owning tool project

Confirm the live project

pnpm nx show project <project-name> --json
pnpm nx graph --print

Inspect tags, targets, dependencies, source root, public entrypoint, and adjacent tests. A directory name is not always the Nx project name.

Avoid ownership shortcuts

Do not import another feature, move SDK access into a component, duplicate Workspace navigation, or branch directly on the host. If a dependency is rejected, revisit the owner or introduce a narrow public contract at the correct layer.

Read capability ownership and dependency boundaries before changing project edges.