diff --git a/checkpoint.json b/checkpoint.json
index c7a09c2a0..eabb689a7 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,14 +1,16 @@
 {
-  "timestamp": "2026-03-19T13:04:00.517229Z",
-  "current_node": "work",
+  "timestamp": "2026-03-19T13:04:02.774932Z",
+  "current_node": "verify",
   "completed_nodes": [
     "start",
     "setup",
-    "work"
+    "work",
+    "verify"
   ],
   "node_retries": {
-    "setup": 1,
+    "verify": 1,
     "work": 1,
+    "setup": 1,
     "start": 1
   },
   "context_values": {
@@ -16,24 +18,26 @@
     "graph.goal": "Verify sandbox filesystem is shared across command and agent nodes",
     "internal.run_id": "01KM333Y478W12S46ZX8RWD3DE",
     "internal.retry_count.work": 1,
-    "command.output": "",
+    "command.output": "SCENARIO_FLAG_42\n",
     "internal.work_dir": "/private/var/folders/nm/bd2dwzy52t1ckn3tklsfmy1c0000gn/T/.tmpcm8r7C/run/worktree",
     "command.stderr": "",
     "outcome": "success",
     "last_response": "The file contains: **`SCENARIO_FLAG_42`**\n\nThe setup stage successfully created this file with the echo command. This will be useful for verifying that the sandbox filesystem is indeed shared across c",
-    "internal.thread_id": "setup",
+    "internal.thread_id": "work",
     "response.work": "The file contains: **`SCENARIO_FLAG_42`**\n\nThe setup stage successfully created this file with the echo command. This will be useful for verifying that the sandbox filesystem is indeed shared across command and agent nodes—you can check if subsequent nodes can read this file to confirm they're operating in the same shared filesystem environment.",
-    "current.preamble": "Goal: Verify sandbox filesystem is shared across command and agent nodes\n\n## Completed stages\n- **setup**: success\n  - Script: `echo SCENARIO_FLAG_42 > /tmp/scenario_flag.txt`\n  - Stdout: (empty)\n  - Stderr: (empty)\n",
+    "current.preamble": "Goal: Verify sandbox filesystem is shared across command and agent nodes\n\n## Completed stages\n- **setup**: success\n  - Script: `echo SCENARIO_FLAG_42 > /tmp/scenario_flag.txt`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **work**: success\n  - Model: claude-haiku-4-5, 502 tokens in / 143 out\n",
     "thread.start.current_node": "setup",
-    "current_node": "work",
+    "current_node": "verify",
     "internal.retry_count.start": 1,
     "failure_signature": "",
     "thread.setup.current_node": "work",
     "internal.node_visit_count": 1,
     "last_stage": "work",
+    "internal.retry_count.verify": 1,
     "graph.rankdir": "LR",
     "internal.fidelity": "compact",
-    "internal.retry_count.setup": 1
+    "internal.retry_count.setup": 1,
+    "thread.work.current_node": "verify"
   },
   "logs": [],
   "node_outcomes": {
@@ -59,6 +63,15 @@
       },
       "duration_ms": 5527
     },
+    "verify": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": "SCENARIO_FLAG_42\n"
+      },
+      "notes": "Script completed: cat /tmp/scenario_flag.txt",
+      "duration_ms": 4
+    },
     "setup": {
       "status": "success",
       "context_updates": {
@@ -69,10 +82,11 @@
       "duration_ms": 4
     }
   },
-  "next_node_id": "verify",
+  "next_node_id": "exit",
   "node_visits": {
-    "start": 1,
     "work": 1,
+    "verify": 1,
+    "start": 1,
     "setup": 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..28cf873ca
--- /dev/null
+++ b/nodes/verify/script_invocation.json
@@ -0,0 +1,5 @@
+{
+  "command": "cat /tmp/scenario_flag.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..8abf78a69
--- /dev/null
+++ b/nodes/verify/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 3,
+  "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..f0d43d35e
--- /dev/null
+++ b/nodes/verify/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Script completed: cat /tmp/scenario_flag.txt",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:04:02.774664+00:00"
+}
\ No newline at end of file