Provenance (D4 / EDITOR_AS_APP_SPEC §12.3): WHICH previewed app + compile this snapshot describes, so a consumer can tell stale output from fresh and never conflates two apps' diagnostics. null until a first compile is observed.
null
Optional
The previewed app's stable key (provider/ns/repo).
provider/ns/repo
Monotonic id of the compile that produced these build errors.
Provenance (D4 / EDITOR_AS_APP_SPEC §12.3): WHICH previewed app + compile this snapshot describes, so a consumer can tell stale output from fresh and never conflates two apps' diagnostics.
nulluntil a first compile is observed.