diff --git a/graph/configurations/cargo-check-post-edit-hook-for-rust-files-in-claude-code-a2d02a.md b/graph/configurations/cargo-check-post-edit-hook-for-rust-files-in-claude-code-a2d02a.md
index 68a2e75c94e..d11882f6cb3 100644
--- a/graph/configurations/cargo-check-post-edit-hook-for-rust-files-in-claude-code-a2d02a.md
+++ b/graph/configurations/cargo-check-post-edit-hook-for-rust-files-in-claude-code-a2d02a.md
@@ -6,7 +6,7 @@ tags: [sba-scouting, rust, claude-code, hooks, linting, cargo, configuration, de
 importance: 0.65
 confidence: 0.8
 created: "2026-03-02T00:33:26.804471+00:00"
-updated: "2026-03-02T02:09:21.572942+00:00"
+updated: "2026-03-02T02:20:38.872040+00:00"
 relations:
   - target: 73646e80-a640-4316-b7c6-54a4330f1b28
     type: RELATED_TO
@@ -38,6 +38,11 @@ relations:
     direction: incoming
     strength: 0.8
     edge_id: ceebc50e-6db0-444e-b31d-36344913dc12
+  - target: be0bda86-d893-4f86-97c4-0ca4e1073121
+    type: SOLVES
+    direction: incoming
+    strength: 0.95
+    edge_id: b5623458-9ace-43ae-ae7e-101d465498ee
 ---
 
 # Cargo Check Post-Edit Hook Configuration
diff --git a/graph/edges/fix-claude-code-posttooluse-ho--SOLVES--cargo-check-post-edit-hook-for-b56234.md b/graph/edges/fix-claude-code-posttooluse-ho--SOLVES--cargo-check-post-edit-hook-for-b56234.md
new file mode 100644
index 00000000000..d9290b654b8
--- /dev/null
+++ b/graph/edges/fix-claude-code-posttooluse-ho--SOLVES--cargo-check-post-edit-hook-for-b56234.md
@@ -0,0 +1,13 @@
+---
+id: b5623458-9ace-43ae-ae7e-101d465498ee
+type: SOLVES
+from_id: be0bda86-d893-4f86-97c4-0ca4e1073121
+from_title: "Fix: Claude Code PostToolUse hook correct JSON format"
+to_id: a2d02aea-07fd-4528-8158-f2f42a23a2dd
+to_title: "Cargo check post-edit hook for Rust files in Claude Code"
+strength: 0.95
+created: "2026-03-02T02:20:38.872040+00:00"
+updated: "2026-03-02T02:20:38.872040+00:00"
+---
+
+The PostToolUse hook format fix directly solved the broken cargo check hook configuration. The original config used incorrect field names (tool_name, file_glob as object fields) and wrong event key (PostToolCall). The fix provided the correct format: PostToolUse event, matcher as plain regex string, hooks array with type:command.
diff --git a/graph/fixes/fix-claude-code-posttooluse-hook-correct-json-format-be0bda.md b/graph/fixes/fix-claude-code-posttooluse-hook-correct-json-format-be0bda.md
index a15394dfb7b..4f079211804 100644
--- a/graph/fixes/fix-claude-code-posttooluse-hook-correct-json-format-be0bda.md
+++ b/graph/fixes/fix-claude-code-posttooluse-hook-correct-json-format-be0bda.md
@@ -6,7 +6,7 @@ tags: [sba-scouting, rust, claude-code, hooks, configuration, fix]
 importance: 0.8
 confidence: 0.8
 created: "2026-03-02T02:08:35.272129+00:00"
-updated: "2026-03-02T02:09:21.572942+00:00"
+updated: "2026-03-02T02:20:38.872040+00:00"
 relations:
   - target: 62ee21e8-2b56-4d38-a73d-47e2724f08c6
     type: BUILDS_ON
@@ -28,6 +28,11 @@ relations:
     direction: outgoing
     strength: 0.8
     edge_id: ceebc50e-6db0-444e-b31d-36344913dc12
+  - target: a2d02aea-07fd-4528-8158-f2f42a23a2dd
+    type: SOLVES
+    direction: outgoing
+    strength: 0.95
+    edge_id: b5623458-9ace-43ae-ae7e-101d465498ee
 ---
 
 # Claude Code PostToolUse Hook Correct Format