AUTOGRAPH_SCOPE_IDENTIFIER_PREFIX

Prefix marking an accessibility identifier as an Autograph element scope rather than a name the host app chose. Everything after it is the scope's payload.

The identifier slot is the only bridged accessibility property that is both identity-bearing and never read out to a VoiceOver user, which is why the scope travels in it — see autocaptureScope's kdoc in autograph-compose for the other three channels and why each is unusable. Compose Multiplatform collapses two testTags on one layout node to the first, so a scope can never share a node with the element's own tag; it always arrives on a wrapper, one level above.

Reserved. An identifier starting with this prefix is treated as Autograph's own and is never reported as a tap target, so an app that sets one itself loses that element's name. The payload format after the prefix is an implementation detail shared between the writer and this reader in the same release, and is not a compatibility surface.