diff --git a/workplans/SAND-WP-0014-owner-mediated-execution.md b/workplans/SAND-WP-0014-owner-mediated-execution.md
index 660ed69..5809a89 100644
--- a/workplans/SAND-WP-0014-owner-mediated-execution.md
+++ b/workplans/SAND-WP-0014-owner-mediated-execution.md
@@ -102,6 +102,8 @@ only to the child process, and excludes it from results and lifecycle evidence.
 ```task
 id: SAND-WP-0014-T05
 status: wait
+depends_on: [SAND-WP-0015-T04]
+blocking_reason: "Needs a concrete Claude-compatible credential route (SAND-WP-0015-T04) before one real rein command can run through the owner API."
 priority: high
 state_hub_task_id: "c6812fd4-bb7b-5be0-8344-a122496fe5bc"
 ```
diff --git a/workplans/SAND-WP-0015-bwrap-runtime-and-private-state.md b/workplans/SAND-WP-0015-bwrap-runtime-and-private-state.md
index 612e327..04a0f4d 100644
--- a/workplans/SAND-WP-0015-bwrap-runtime-and-private-state.md
+++ b/workplans/SAND-WP-0015-bwrap-runtime-and-private-state.md
@@ -88,6 +88,8 @@ credential acquisition occurred; T04 remains waiting.
 ```task
 id: SAND-WP-0015-T04
 status: wait
+blocked_on: message-from:railiance-platform
+blocking_reason: "Credential owner railiance-platform/OpenBao with rein-aharness must establish a Claude-compatible route and delivery/revocation contract."
 priority: high
 state_hub_task_id: "58817ef6-76d9-5e34-908f-c024e6c99f93"
 ```