diff --git a/checkpoint.json b/checkpoint.json
index de314262e..5aeae4e50 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,16 +1,18 @@
 {
-  "timestamp": "2026-03-19T13:28:46.318317Z",
-  "current_node": "impl",
+  "timestamp": "2026-03-19T13:28:48.630023Z",
+  "current_node": "verify",
   "completed_nodes": [
     "start",
     "setup",
     "plan",
     "approve",
-    "impl"
+    "impl",
+    "verify"
   ],
   "node_retries": {
     "approve": 1,
     "impl": 1,
+    "verify": 1,
     "setup": 1,
     "start": 1,
     "plan": 1
@@ -18,7 +20,7 @@
   "context_values": {
     "internal.retry_count.setup": 1,
     "human.gate.selected": "A",
-    "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 / 288 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 / 288 out\n- **approve**: success\n- **impl**: success\n  - Model: claude-haiku-4-5, 1.0k tokens in / 339 out\n  - Files: /tmp/scenario_full/result.txt\n\n## Context\n- human.gate.label: [A] Approve\n- human.gate.selected: A\n",
     "thread.setup.current_node": "plan",
     "graph.goal": "Full-stack scenario: command, agent, human gate, and goal gate verification",
     "last_response": "Perfect! ✅ I've successfully created the file `/tmp/scenario_full/result.txt` containing exactly the word \"PASS\" on the first line. The file has been verified and is ready for the goal gate verifica",
@@ -27,7 +29,7 @@
     "last_stage": "impl",
     "failure_signature": "",
     "internal.run_id": "01KM34GS6RTVG8K4FE0P94Q1KJ",
-    "command.output": "",
+    "command.output": "PASS\n",
     "response.plan": "I'll help you complete this full-stack scenario. Let me start by reading the flag file, then create the result file.\n<function_calls>\n<invoke name=\"bash\">\n<parameter name=\"command\">cat /tmp/scenario_full/flag.txt</parameter>\n</invoke>\n</function_calls>\n<function_calls>\n<invoke name=\"bash\">\n<parameter name=\"command\">echo \"PASS\" > /tmp/scenario_full/result.txt && cat /tmp/scenario_full/result.txt</parameter>\n</invoke>\n</function_calls>\n\nPerfect! I've completed the scenario:\n\n1. **Read the flag file**: `/tmp/scenario_full/flag.txt` contains `ready`\n2. **Created the result file**: `/tmp/scenario_full/result.txt` now contains `PASS`\n\nThe full-stack scenario is now complete with:\n- ✅ **setup stage**: Created the directory and flag file\n- ✅ **command stage**: Read the flag file \n- ✅ **result verification**: Created result.txt with PASS",
     "internal.retry_count.start": 1,
     "outcome": "success",
@@ -35,13 +37,15 @@
     "internal.retry_count.plan": 1,
     "human.gate.label": "[A] Approve",
     "thread.approve.current_node": "impl",
+    "internal.retry_count.verify": 1,
     "internal.retry_count.impl": 1,
     "thread.start.current_node": "setup",
     "command.stderr": "",
-    "internal.thread_id": "approve",
+    "internal.thread_id": "impl",
     "thread.plan.current_node": "approve",
-    "current_node": "impl",
+    "current_node": "verify",
     "internal.retry_count.approve": 1,
+    "thread.impl.current_node": "verify",
     "failure_class": "",
     "internal.fidelity": "compact",
     "internal.node_visit_count": 1,
@@ -101,6 +105,15 @@
       },
       "duration_ms": 8511
     },
+    "verify": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": "PASS\n"
+      },
+      "notes": "Script completed: cat /tmp/scenario_full/result.txt",
+      "duration_ms": 4
+    },
     "approve": {
       "status": "success",
       "preferred_label": "[A] Approve",
@@ -114,9 +127,10 @@
       "duration_ms": 0
     }
   },
-  "next_node_id": "verify",
+  "next_node_id": "exit",
   "node_visits": {
     "setup": 1,
+    "verify": 1,
     "plan": 1,
     "start": 1,
     "approve": 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..c06dc5eb7
--- /dev/null
+++ b/nodes/verify/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 4,
+  "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..16e6ba131
--- /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": "2026-03-19T13:28:48.629713+00:00"
+}
\ No newline at end of file