diff --git a/checkpoint.json b/checkpoint.json
index 32114470d..bffd811ae 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,34 +1,59 @@
 {
-  "timestamp": "2026-03-19T13:47:55.310066Z",
-  "current_node": "setup",
+  "timestamp": "2026-03-19T13:48:02.028647Z",
+  "current_node": "work",
   "completed_nodes": [
     "start",
-    "setup"
+    "setup",
+    "work"
   ],
   "node_retries": {
     "setup": 1,
+    "work": 1,
     "start": 1
   },
   "context_values": {
     "graph.rankdir": "LR",
     "outcome": "success",
     "command.stderr": "",
-    "current_node": "setup",
+    "thread.setup.current_node": "work",
+    "internal.retry_count.work": 1,
+    "last_response": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the sandbox filesystem is working correctly. The setup stage successfully wrote the file, and we were",
+    "current_node": "work",
     "internal.node_visit_count": 1,
+    "last_stage": "work",
+    "response.work": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the sandbox filesystem is working correctly. The setup stage successfully wrote the file, and we were able to read it from the current context, verifying that the filesystem is shared and persistent across operations.",
     "failure_signature": "",
     "failure_class": "",
-    "internal.thread_id": "start",
+    "internal.thread_id": "setup",
     "internal.fidelity": "compact",
     "command.output": "",
     "internal.retry_count.start": 1,
     "graph.goal": "Verify sandbox filesystem is shared across command and agent nodes",
     "internal.retry_count.setup": 1,
-    "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",
     "thread.start.current_node": "setup",
     "internal.run_id": "01KM35MF4XB59ENCXAEA5M6QXV"
   },
   "logs": [],
   "node_outcomes": {
+    "work": {
+      "status": "success",
+      "context_updates": {
+        "response.work": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the sandbox filesystem is working correctly. The setup stage successfully wrote the file, and we were able to read it from the current context, verifying that the filesystem is shared and persistent across operations.",
+        "last_stage": "work",
+        "last_response": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the sandbox filesystem is working correctly. The setup stage successfully wrote the file, and we were"
+      },
+      "notes": "Stage completed: work",
+      "usage": {
+        "model": "claude-haiku-4-5",
+        "input_tokens": 507,
+        "output_tokens": 148,
+        "cache_read_tokens": 4686,
+        "cache_write_tokens": 5091,
+        "cost": 0.0009976
+      },
+      "duration_ms": 4155
+    },
     "start": {
       "status": "success",
       "duration_ms": 0
@@ -43,9 +68,10 @@
       "duration_ms": 32
     }
   },
-  "next_node_id": "work",
+  "next_node_id": "verify",
   "node_visits": {
     "start": 1,
+    "work": 1,
     "setup": 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..5fa2b77d1
--- /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 sandbox filesystem is working correctly. The setup stage successfully wrote the file, and we were able to read it from the current context, verifying that the filesystem is shared and persistent across operations.
\ No newline at end of file
diff --git a/nodes/work/status.json b/nodes/work/status.json
new file mode 100644
index 000000000..b1ff1e58e
--- /dev/null
+++ b/nodes/work/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: work",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:48:02.028401+00:00"
+}
\ No newline at end of file