diff --git a/graph/decisions/sba-scout-python-to-rust-tui-migration-recommended-stack-and-2cf305.md b/graph/decisions/sba-scout-python-to-rust-tui-migration-recommended-stack-and-2cf305.md
index 04d4e411ac6..9f9350ebf12 100644
--- a/graph/decisions/sba-scout-python-to-rust-tui-migration-recommended-stack-and-2cf305.md
+++ b/graph/decisions/sba-scout-python-to-rust-tui-migration-recommended-stack-and-2cf305.md
@@ -6,7 +6,13 @@ tags: [sba-scout, rust, migration, ratatui, research, decision, tui]
 importance: 0.7
 confidence: 0.8
 created: "2026-02-23T18:05:05.367031+00:00"
-updated: "2026-02-23T18:05:05.367031+00:00"
+updated: "2026-02-27T01:19:05.955043+00:00"
+relations:
+  - target: c9add129-283a-445a-8dff-4525ec7fa9b6
+    type: BUILDS_ON
+    direction: incoming
+    strength: 0.9
+    edge_id: 5cde624d-cbf0-456b-aa87-076e7e999dde
 ---
 
 # SBA Scout Python-to-Rust TUI Migration Research
diff --git a/graph/decisions/sba-scout-rust-rewrite-phase-1-complete-foundation-layer-imp-c9add1.md b/graph/decisions/sba-scout-rust-rewrite-phase-1-complete-foundation-layer-imp-c9add1.md
index c11666a99e1..7adc6357a1f 100644
--- a/graph/decisions/sba-scout-rust-rewrite-phase-1-complete-foundation-layer-imp-c9add1.md
+++ b/graph/decisions/sba-scout-rust-rewrite-phase-1-complete-foundation-layer-imp-c9add1.md
@@ -6,7 +6,13 @@ tags: [sba-scout, rust, migration, phase-1, sqlx, sqlite, figment, decision]
 importance: 0.8
 confidence: 0.8
 created: "2026-02-27T01:18:18.061642+00:00"
-updated: "2026-02-27T01:18:18.061642+00:00"
+updated: "2026-02-27T01:19:05.955043+00:00"
+relations:
+  - target: 2cf3058c-85f4-481a-bbe7-17ebb9b9e908
+    type: BUILDS_ON
+    direction: outgoing
+    strength: 0.9
+    edge_id: 5cde624d-cbf0-456b-aa87-076e7e999dde
 ---
 
 # SBA Scout Rust Rewrite — Phase 1 Foundation Complete
diff --git a/graph/edges/sba-scout-rust-rewrite-phase-1--BUILDS_ON--sba-scout-python-to-rust-tui-m-5cde62.md b/graph/edges/sba-scout-rust-rewrite-phase-1--BUILDS_ON--sba-scout-python-to-rust-tui-m-5cde62.md
new file mode 100644
index 00000000000..1f0870a37c2
--- /dev/null
+++ b/graph/edges/sba-scout-rust-rewrite-phase-1--BUILDS_ON--sba-scout-python-to-rust-tui-m-5cde62.md
@@ -0,0 +1,13 @@
+---
+id: 5cde624d-cbf0-456b-aa87-076e7e999dde
+type: BUILDS_ON
+from_id: c9add129-283a-445a-8dff-4525ec7fa9b6
+from_title: "SBA Scout Rust rewrite Phase 1 complete — foundation layer implemented"
+to_id: 2cf3058c-85f4-481a-bbe7-17ebb9b9e908
+to_title: "SBA Scout Python-to-Rust TUI migration: recommended stack and approach"
+strength: 0.9
+created: "2026-02-27T01:19:05.955043+00:00"
+updated: "2026-02-27T01:19:05.955043+00:00"
+---
+
+Phase 1 implementation builds on the original migration research and recommended stack decision