diff --git a/checkpoint.json b/checkpoint.json
index cbd178398..19108a3a6 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,13 +1,15 @@
 {
-  "timestamp": "2026-03-16T05:36:11.370843Z",
-  "current_node": "solve",
+  "timestamp": "2026-03-16T05:36:13.597266Z",
+  "current_node": "extract_patch",
   "completed_nodes": [
     "start",
     "setup",
-    "solve"
+    "solve",
+    "extract_patch"
   ],
   "node_retries": {
     "start": 1,
+    "extract_patch": 1,
     "solve": 4,
     "setup": 1
   },
@@ -15,23 +17,46 @@
     "internal.run_id": "01KKTJ6RVGWH8MFFHK6E5KYV5X",
     "internal.fidelity": "compact",
     "internal.retry_count.solve": 4,
-    "command.output": "fatal: destination path '.' already exists and is not an empty directory.\n",
-    "current.preamble": "Goal: \n\n## Completed stages\n- **setup**: fail\n  - Script: `git clone https://github.com/django/django.git . && git checkout 7f9e4524d6b23424cf44fbe1bf1f4e70f6bb066e && python -m pip install -e .`\n  - Stdout:\n    ```\n    fatal: destination path '.' already exists and is not an empty directory.\n    ```\n  - Stderr: (empty)\n\n## Context\n- failure_class: deterministic\n- failure_signature: setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.\n",
-    "failure_signature": "solve|transient_infra|api_transient|gemini|rate_limited",
-    "internal.thread_id": "setup",
+    "command.output": "",
+    "current.preamble": "Goal: \n\n## Completed stages\n- **setup**: fail\n  - Script: `git clone https://github.com/django/django.git . && git checkout 7f9e4524d6b23424cf44fbe1bf1f4e70f6bb066e && python -m pip install -e .`\n  - Stdout:\n    ```\n    fatal: destination path '.' already exists and is not an empty directory.\n    ```\n  - Stderr: (empty)\n- **solve**: fail\n\n## Context\n- failure_class: transient_infra\n- failure_signature: solve|transient_infra|api_transient|gemini|rate_limited\n",
+    "thread.solve.current_node": "extract_patch",
+    "failure_signature": "",
+    "internal.thread_id": "solve",
     "internal.node_visit_count": 1,
     "command.stderr": "",
     "graph.rankdir": "LR",
+    "internal.retry_count.extract_patch": 1,
     "internal.retry_count.setup": 1,
     "internal.retry_count.start": 1,
     "thread.setup.current_node": "solve",
-    "outcome": "fail",
+    "outcome": "success",
     "thread.start.current_node": "setup",
-    "current_node": "solve",
-    "failure_class": "transient_infra"
+    "current_node": "extract_patch",
+    "failure_class": ""
   },
   "logs": [],
   "node_outcomes": {
+    "setup": {
+      "status": "fail",
+      "context_updates": {
+        "command.output": "fatal: destination path '.' already exists and is not an empty directory.\n",
+        "command.stderr": ""
+      },
+      "failure": {
+        "message": "Script failed with exit code: 128\n\n## stdout\nfatal: destination path '.' already exists and is not an empty directory.\n",
+        "failure_class": "deterministic"
+      },
+      "duration_ms": 52
+    },
+    "extract_patch": {
+      "status": "success",
+      "context_updates": {
+        "command.output": "",
+        "command.stderr": ""
+      },
+      "notes": "Script completed: git diff",
+      "duration_ms": 55
+    },
     "solve": {
       "status": "fail",
       "failure": {
@@ -44,27 +69,16 @@
     "start": {
       "status": "success",
       "duration_ms": 0
-    },
-    "setup": {
-      "status": "fail",
-      "context_updates": {
-        "command.output": "fatal: destination path '.' already exists and is not an empty directory.\n",
-        "command.stderr": ""
-      },
-      "failure": {
-        "message": "Script failed with exit code: 128\n\n## stdout\nfatal: destination path '.' already exists and is not an empty directory.\n",
-        "failure_class": "deterministic"
-      },
-      "duration_ms": 52
     }
   },
-  "next_node_id": "extract_patch",
+  "next_node_id": "exit",
   "loop_failure_signatures": {
     "setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.": 1
   },
   "node_visits": {
     "solve": 1,
     "start": 1,
-    "setup": 1
+    "setup": 1,
+    "extract_patch": 1
   }
 }
\ No newline at end of file
diff --git a/nodes/extract_patch/script_invocation.json b/nodes/extract_patch/script_invocation.json
new file mode 100644
index 000000000..6d29afc80
--- /dev/null
+++ b/nodes/extract_patch/script_invocation.json
@@ -0,0 +1,5 @@
+{
+  "command": "git diff",
+  "language": "shell",
+  "timeout_ms": null
+}
\ No newline at end of file
diff --git a/nodes/extract_patch/script_timing.json b/nodes/extract_patch/script_timing.json
new file mode 100644
index 000000000..3ec21f9cf
--- /dev/null
+++ b/nodes/extract_patch/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 54,
+  "exit_code": 0,
+  "timed_out": false
+}
\ No newline at end of file
diff --git a/nodes/extract_patch/status.json b/nodes/extract_patch/status.json
new file mode 100644
index 000000000..15900e3fc
--- /dev/null
+++ b/nodes/extract_patch/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Script completed: git diff",
+  "failure_reason": null,
+  "timestamp": "2026-03-16T05:36:13.597098+00:00"
+}
\ No newline at end of file