diff --git a/checkpoint.json b/checkpoint.json
index d91bb266a..fa97c25b6 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,17 +1,18 @@
 {
-  "timestamp": "2026-03-27T14:58:28.404646Z",
-  "current_node": "impl",
+  "timestamp": "2026-03-27T14:58:30.837717Z",
+  "current_node": "verify",
   "completed_nodes": [
     "start",
     "setup",
     "plan",
     "approve",
-    "impl"
+    "impl",
+    "verify"
   ],
   "node_retries": {},
   "context_values": {
     "response.plan": "# Reading and Creating Files\n\nI'll execute the commands to read the flag file and create the result file:\n\n```bash\ncat /tmp/scenario_full/flag.txt && echo PASS > /tmp/scenario_full/result.txt\n```\n\n**Step-by-step:**\n\n1. **Read the flag file:**\n   ```bash\n   cat /tmp/scenario_full/flag.txt\n   ```\n   Expected output: `ready`\n\n2. **Create the result file:**\n   ```bash\n   echo PASS > /tmp/scenario_full/result.txt\n   ```\n\n3. **Verify the result:**\n   ```bash\n   cat /tmp/scenario_full/result.txt\n   ```\n   Expected output: `PASS`\n\nBoth operations should complete successfully, moving you to the next stage of the full-stack scenario.",
-    "internal.thread_id": "approve",
+    "internal.thread_id": "impl",
     "internal.retry_count.approve": 0,
     "internal.fidelity": "compact",
     "internal.run_id": "01KMQWTV54307PJ37C87C412F9",
@@ -21,17 +22,19 @@
     "failure_class": "",
     "internal.retry_count.start": 0,
     "last_stage": "impl",
-    "current_node": "impl",
+    "current_node": "verify",
     "internal.retry_count.plan": 0,
-    "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, 2.3k tokens in / 504 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, 2.3k tokens in / 504 out\n- **approve**: success\n- **impl**: success\n  - Model: claude-haiku-4-5, 748 tokens in / 297 out\n  - Files: /tmp/scenario_full/result.txt\n\n## Context\n- human.gate.label: [A] Approve\n- human.gate.selected: A\n",
+    "thread.impl.current_node": "verify",
     "outcome": "success",
     "failure_signature": "",
-    "command.output": "",
+    "command.output": "PASS\n",
     "thread.start.current_node": "setup",
     "graph.rankdir": "LR",
     "internal.retry_count.setup": 0,
     "thread.approve.current_node": "impl",
     "internal.retry_count.impl": 0,
+    "internal.retry_count.verify": 0,
     "graph.goal": "Full-stack scenario: command, agent, human gate, and goal gate verification",
     "preferred_label": "[A] Approve",
     "thread.plan.current_node": "approve",
@@ -78,6 +81,15 @@
       "status": "success",
       "usage": null
     },
+    "verify": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": "PASS\n"
+      },
+      "notes": "Script completed: cat /tmp/scenario_full/result.txt",
+      "usage": null
+    },
     "setup": {
       "status": "success",
       "context_updates": {
@@ -106,12 +118,13 @@
       }
     }
   },
-  "next_node_id": "verify",
+  "next_node_id": "exit",
   "node_visits": {
     "setup": 1,
     "approve": 1,
     "start": 1,
     "impl": 1,
+    "verify": 1,
     "plan": 1
   }
 }
\ No newline at end of file
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..b335099bc
--- /dev/null
+++ b/nodes/verify/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 29,
+  "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..108fb1c55
--- /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": "2026-03-27T14:58:30.837390+00:00"
+}
\ No newline at end of file