diff --git a/workplans/ASSEMBLY-WP-0018-gadm05-grounding.md b/workplans/ASSEMBLY-WP-0018-gadm05-grounding.md
index f58078f..3bb2554 100644
--- a/workplans/ASSEMBLY-WP-0018-gadm05-grounding.md
+++ b/workplans/ASSEMBLY-WP-0018-gadm05-grounding.md
@@ -11,6 +11,7 @@ owner: claude-code
 topic_slug: coulomb-social
 created: "2026-10-13"
 updated: "2026-10-13"
+state_hub_workstream_id: "a34af97f-0000-5186-8abb-c44bc3fd197e"
 ---
 
 # GADM-0.5 grounding
@@ -26,6 +27,7 @@ GADM-0.5 replaces GADM-0.4 as the reference model.
 id: ASSEMBLY-WP-0018-T01
 status: todo
 priority: high
+state_hub_task_id: "ba4ac94a-0351-52d7-8dbf-64fd837f8303"
 ```
 
 Modeled throughput intensity falls 0.1–0.5 % per year; observed EU
@@ -41,6 +43,7 @@ decoupling and sinks-breach readings survive?
 id: ASSEMBLY-WP-0018-T02
 status: todo
 priority: high
+state_hub_task_id: "3691dd92-6ba0-51f2-8a95-6c569cbe1aab"
 ```
 
 Ground the class starting levels (per-boundary control variables, Planetary
@@ -55,6 +58,7 @@ class binds next depends on the replenishment.
 id: ASSEMBLY-WP-0018-T03
 status: todo
 priority: medium
+state_hub_task_id: "92de5938-90df-5268-b937-e1ea033e0308"
 ```
 
 Ground φ_r (rival share of organism output; task-level data from the
@@ -67,6 +71,7 @@ AI-generated output, for example code on public repositories).
 id: ASSEMBLY-WP-0018-T04
 status: todo
 priority: low
+state_hub_task_id: "60940505-b8f9-55f6-b55f-aa4075fe10ff"
 ```
 
 Ground the weight adjustment speed (0.05 per year) and the capture
@@ -80,6 +85,7 @@ selection material for VFAC.
 id: ASSEMBLY-WP-0018-T05
 status: todo
 priority: medium
+state_hub_task_id: "3aace583-cc0b-58f7-9eb0-e241dcfddc1e"
 ```
 
 After T01–T03, decide whether GADM-0.5 (classes, demand split, non-rival