diff --git a/workplans/GROUND-WP-0002-rulings-clay-borg-is-blocked-on.md b/workplans/GROUND-WP-0002-rulings-clay-borg-is-blocked-on.md
index 65af86a..361b2f3 100644
--- a/workplans/GROUND-WP-0002-rulings-clay-borg-is-blocked-on.md
+++ b/workplans/GROUND-WP-0002-rulings-clay-borg-is-blocked-on.md
@@ -15,8 +15,9 @@ state_hub_workstream_id: "d8fc3a69-a5ae-4f6e-b4fc-b07d1ff9c783"
 # Rulings the engine is blocked on
 
 `clay-borg` implements the engine that simulates GROUND. Its INTENT says
-game-semantics questions defer to **this** repo. Nine such questions have
-accumulated there and none has been answered, because none had a home.
+game-semantics questions defer to **this** repo. Ten underdetermined rules points, six provisional scenarios and three
+questions raised by play have accumulated there, and none has been
+answered, because none had a home.
 This is their home.
 
 **Nothing here is a clay-borg change.** Every item is a ruling only the
@@ -108,6 +109,40 @@ or a gap?
 For each: **intended, or not offered.** If intended, say what the player
 is meant to learn from the waste.
 
+## Task: answer the ten underdetermined points (U1–U10)
+
+```task
+id: GROUND-WP-0002-T05
+status: todo
+priority: high
+```
+
+**This is the oldest item and it has never been read.** `clay-borg`
+messaged this repo on **2026-07-30** with ten points the dataset does not
+decide, each simulated under a provisional default, asking for *"confirm /
+correct (with ruling)"* per item. Four days later the message was still
+unopened, because there was nowhere for it to land. Now there is.
+
+| | question | the default clay-borg simulates |
+|---|---|---|
+| **U1** | Bond-acceptance timing | the target decides during Support resolution, post-reveal |
+| **U2** | Stress clamping | clamp on **every** application, not only at End — this changes when DARVO triggers mid-round |
+| **U3** | DENY with no legal target | no-op; the sequence still advances |
+| **U4** | Solution deck exhaustion | deterministic reshuffle of the discard, else skip the draw |
+| **U5** | rejected REVERSE self-effects | owner still gets −2 Stress and the sequence ends; no Blame, no +1, no Protection |
+| **U6** | same-round Bond-Support vs DARVO | the Support cancels that round's DARVO stage **before it fires** (step order 2 before 3) |
+| **U7** | player elimination | none exists — **confirm** |
+| **U8** | GROUND—OU vs Attack | OU cancels the Attack **before** Protection is consumed |
+| **U9** | simultaneous double DARVO trigger | needs no extra rule — **confirm** |
+| **U10** | hand limit | none |
+
+Full text of each default is in `clay-borg/specs/GroundRules.md`
+§Underdetermined. **U2, U6 and U8 are the ones that change play**, because
+each decides whether a DARVO stage fires at all; the rest are edge cases
+or confirmations.
+
+Answer per item: **confirm**, or **correct with the ruling**.
+
 ## Task: confirm or overturn the six provisional defaults
 
 ```task
@@ -118,9 +153,10 @@ state_hub_task_id: "52cc157f-8fbd-469d-9da7-a96f1c60b654"
 ```
 
 Six engine scenarios are tagged `provisional: true` with
-`provisional_owner: ground-game`. Each encodes a default the engine had to
-pick because the rules did not say. A ruling flips the scenario; it does
-not change the kernel.
+`provisional_owner: ground-game`. These are the **scenarios** that encode
+T05's defaults — answering U1–U10 will settle most of them, so take T05
+first and use this list to check nothing was missed. A ruling flips the
+scenario; it does not change the kernel.
 
 | scenario | the default currently in force |
 |---|---|