diff --git a/checkpoint.json b/checkpoint.json
index 545575a75..ece1e86fd 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,31 +1,38 @@
 {
-  "timestamp": "2026-03-19T13:47:51.554872Z",
-  "current_node": "setup",
+  "timestamp": "2026-03-19T13:47:58.252911Z",
+  "current_node": "work",
   "completed_nodes": [
     "start",
-    "setup"
+    "setup",
+    "work"
   ],
   "node_retries": {
     "start": 1,
+    "work": 1,
     "setup": 1
   },
   "context_values": {
     "failure_signature": "",
     "internal.run_id": "01KM35MF3WT0ZP15ZFQ8VK2YVZ",
-    "internal.thread_id": "start",
+    "internal.thread_id": "setup",
     "command.output": "",
     "command.stderr": "",
-    "current_node": "setup",
+    "current_node": "work",
     "graph.goal": "Verify sandbox filesystem is shared across command and agent nodes",
-    "current.preamble": "Goal: Verify sandbox filesystem is shared across command and agent nodes\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",
     "outcome": "success",
     "failure_class": "",
+    "thread.setup.current_node": "work",
+    "response.work": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the setup stage successfully created the file and wrote the expected content to it. The sandbox filesystem is accessible and the file was properly written during the setup phase.",
     "graph.rankdir": "LR",
     "internal.fidelity": "compact",
     "internal.retry_count.start": 1,
+    "last_stage": "work",
+    "last_response": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the setup stage successfully created the file and wrote the expected content to it. The sandbox files",
     "internal.node_visit_count": 1,
     "internal.work_dir": "/private/var/folders/nm/bd2dwzy52t1ckn3tklsfmy1c0000gn/T/.tmpxji0kY/run/worktree",
     "thread.start.current_node": "setup",
+    "internal.retry_count.work": 1,
     "internal.retry_count.setup": 1
   },
   "logs": [],
@@ -42,11 +49,30 @@
       },
       "notes": "Script completed: echo SCENARIO_FLAG_42 > /tmp/scenario_flag.txt",
       "duration_ms": 3
+    },
+    "work": {
+      "status": "success",
+      "context_updates": {
+        "last_stage": "work",
+        "response.work": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the setup stage successfully created the file and wrote the expected content to it. The sandbox filesystem is accessible and the file was properly written during the setup phase.",
+        "last_response": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the setup stage successfully created the file and wrote the expected content to it. The sandbox files"
+      },
+      "notes": "Stage completed: work",
+      "usage": {
+        "model": "claude-haiku-4-5",
+        "input_tokens": 505,
+        "output_tokens": 138,
+        "cache_read_tokens": 0,
+        "cache_write_tokens": 9879,
+        "cost": 0.000956
+      },
+      "duration_ms": 3831
     }
   },
-  "next_node_id": "work",
+  "next_node_id": "verify",
   "node_visits": {
     "setup": 1,
-    "start": 1
+    "start": 1,
+    "work": 1
   }
 }
\ No newline at end of file
diff --git a/nodes/work/prompt.md b/nodes/work/prompt.md
new file mode 100644
index 000000000..59af50d8f
--- /dev/null
+++ b/nodes/work/prompt.md
@@ -0,0 +1,10 @@
+Goal: Verify sandbox filesystem is shared across command and agent nodes
+
+## Completed stages
+- **setup**: success
+  - Script: `echo SCENARIO_FLAG_42 > /tmp/scenario_flag.txt`
+  - Stdout: (empty)
+  - Stderr: (empty)
+
+
+Read the file /tmp/scenario_flag.txt and tell me what it contains.
\ No newline at end of file
diff --git a/nodes/work/provider_used.json b/nodes/work/provider_used.json
new file mode 100644
index 000000000..17e74f4d1
--- /dev/null
+++ b/nodes/work/provider_used.json
@@ -0,0 +1,5 @@
+{
+  "mode": "agent",
+  "provider": "anthropic",
+  "model": "claude-haiku-4-5"
+}
\ No newline at end of file
diff --git a/nodes/work/response.md b/nodes/work/response.md
new file mode 100644
index 000000000..ba9eb5e57
--- /dev/null
+++ b/nodes/work/response.md
@@ -0,0 +1,7 @@
+Perfect! The file `/tmp/scenario_flag.txt` contains:
+
+```
+SCENARIO_FLAG_42
+```
+
+This confirms that the setup stage successfully created the file and wrote the expected content to it. The sandbox filesystem is accessible and the file was properly written during the setup phase.
\ No newline at end of file
diff --git a/nodes/work/status.json b/nodes/work/status.json
new file mode 100644
index 000000000..8cc1b4704
--- /dev/null
+++ b/nodes/work/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: work",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:47:58.252680+00:00"
+}
\ No newline at end of file