diff --git a/checkpoint.json b/checkpoint.json
index d356d12d5..f26cacd58 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,19 +1,21 @@
 {
-  "timestamp": "2026-03-19T13:04:26.439150Z",
-  "current_node": "impl",
+  "timestamp": "2026-03-19T13:04:30.826453Z",
+  "current_node": "verify",
   "completed_nodes": [
     "start",
     "setup",
     "plan",
     "approve",
-    "impl"
+    "impl",
+    "verify"
   ],
   "node_retries": {
     "plan": 1,
     "approve": 1,
     "setup": 1,
     "start": 1,
-    "impl": 1
+    "impl": 1,
+    "verify": 1
   },
   "context_values": {
     "thread.start.current_node": "setup",
@@ -31,11 +33,12 @@
     "graph.rankdir": "LR",
     "preferred_label": "[A] Approve",
     "internal.retry_count.impl": 1,
-    "current.preamble": "Goal: Full-stack scenario: command, agent, human gate, and goal gate verification\n\n## Completed stages\n- **setup**: success\n  - Script: `mkdir -p /tmp/scenario_full && echo ready > /tmp/scenario_full/flag.txt`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **plan**: success\n  - Model: claude-haiku-4-5, 2.1k tokens in / 277 out\n- **approve**: success\n\n## Context\n- human.gate.label: [A] Approve\n- human.gate.selected: A\n",
+    "current.preamble": "Goal: Full-stack scenario: command, agent, human gate, and goal gate verification\n\n## Completed stages\n- **setup**: success\n  - Script: `mkdir -p /tmp/scenario_full && echo ready > /tmp/scenario_full/flag.txt`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **plan**: success\n  - Model: claude-haiku-4-5, 2.1k tokens in / 277 out\n- **approve**: success\n- **impl**: success\n  - Model: claude-haiku-4-5, 767 tokens in / 277 out\n\n## Context\n- human.gate.label: [A] Approve\n- human.gate.selected: A\n",
     "internal.node_visit_count": 1,
+    "internal.retry_count.verify": 1,
     "internal.retry_count.start": 1,
-    "command.output": "",
-    "current_node": "impl",
+    "command.output": "PASS\n",
+    "current_node": "verify",
     "thread.plan.current_node": "approve",
     "internal.retry_count.approve": 1,
     "response.impl": "✓ **Task completed successfully!** \n\nThe file `/tmp/scenario_full/result.txt` has been created with exactly the word \"PASS\" on the first line, as required.",
@@ -43,8 +46,9 @@
     "last_stage": "impl",
     "command.stderr": "",
     "thread.setup.current_node": "plan",
-    "internal.thread_id": "approve",
-    "outcome": "success"
+    "internal.thread_id": "impl",
+    "outcome": "success",
+    "thread.impl.current_node": "verify"
   },
   "logs": [],
   "node_outcomes": {
@@ -100,6 +104,15 @@
       "status": "success",
       "duration_ms": 0
     },
+    "verify": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": "PASS\n"
+      },
+      "notes": "Script completed: cat /tmp/scenario_full/result.txt",
+      "duration_ms": 281
+    },
     "setup": {
       "status": "success",
       "context_updates": {
@@ -110,11 +123,12 @@
       "duration_ms": 92
     }
   },
-  "next_node_id": "verify",
+  "next_node_id": "exit",
   "node_visits": {
     "plan": 1,
     "impl": 1,
     "approve": 1,
+    "verify": 1,
     "setup": 1,
     "start": 1
   }
diff --git a/nodes/verify/script_invocation.json b/nodes/verify/script_invocation.json
new file mode 100644
index 000000000..5b93c7d8a
--- /dev/null
+++ b/nodes/verify/script_invocation.json
@@ -0,0 +1,5 @@
+{
+  "command": "cat /tmp/scenario_full/result.txt",
+  "language": "shell",
+  "timeout_ms": null
+}
\ No newline at end of file
diff --git a/nodes/verify/script_timing.json b/nodes/verify/script_timing.json
new file mode 100644
index 000000000..3c52ad5fe
--- /dev/null
+++ b/nodes/verify/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 279,
+  "exit_code": 0,
+  "timed_out": false
+}
\ No newline at end of file
diff --git a/nodes/verify/status.json b/nodes/verify/status.json
new file mode 100644
index 000000000..973fb40a9
--- /dev/null
+++ b/nodes/verify/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Script completed: cat /tmp/scenario_full/result.txt",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:04:30.825701+00:00"
+}
\ No newline at end of file