checkpoint

⚒️ Generated with [Fabro](https://fabro.sh)

checkpoint.json

@@ -1,14 +1,16 @@
 {
-  "timestamp": "2026-03-19T13:41:07.636276Z",
-  "current_node": "work",
+  "timestamp": "2026-03-19T13:41:09.728212Z",
+  "current_node": "verify",
   "completed_nodes": [
     "start",
     "setup",
-    "work"
+    "work",
+    "verify"
   ],
   "node_retries": {
     "start": 1,
     "work": 1,
+    "verify": 1,
     "setup": 1
   },
   "context_values": {
@@ -17,17 +19,19 @@
     "failure_signature": "",
     "thread.start.current_node": "setup",
     "command.stderr": "",
-    "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, 507 tokens in / 204 out\n",
     "last_stage": "work",
-    "internal.thread_id": "setup",
+    "internal.thread_id": "work",
+    "thread.work.current_node": "verify",
     "graph.rankdir": "LR",
-    "command.output": "",
+    "command.output": "SCENARIO_FLAG_42\n",
     "internal.fidelity": "compact",
     "internal.run_id": "01KM357YAFWTEM0XEAR8D3RXD3",
     "internal.retry_count.start": 1,
     "failure_class": "",
     "outcome": "success",
-    "current_node": "work",
+    "internal.retry_count.verify": 1,
+    "current_node": "verify",
     "last_response": "Perfect! The file `/tmp/scenario_flag.txt` contains `SCENARIO_FLAG_42`, which confirms that the sandbox filesystem is indeed shared across command and agent nodes. The setup stage successfully created",
     "internal.node_visit_count": 1,
     "internal.work_dir": "/private/var/folders/nm/bd2dwzy52t1ckn3tklsfmy1c0000gn/T/.tmpioA9a3/run/worktree",
@@ -37,6 +41,28 @@
   },
   "logs": [],
   "node_outcomes": {
+    "setup": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": ""
+      },
+      "notes": "Script completed: echo SCENARIO_FLAG_42 > /tmp/scenario_flag.txt",
+      "duration_ms": 2
+    },
+    "verify": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": "SCENARIO_FLAG_42\n"
+      },
+      "notes": "Script completed: cat /tmp/scenario_flag.txt",
+      "duration_ms": 5
+    },
+    "start": {
+      "status": "success",
+      "duration_ms": 0
+    },
     "work": {
       "status": "success",
       "context_updates": {
@@ -54,25 +80,13 @@
         "cost": 0.0012216
       },
       "duration_ms": 4120
-    },
-    "start": {
-      "status": "success",
-      "duration_ms": 0
-    },
-    "setup": {
-      "status": "success",
-      "context_updates": {
-        "command.stderr": "",
-        "command.output": ""
-      },
-      "notes": "Script completed: echo SCENARIO_FLAG_42 > /tmp/scenario_flag.txt",
-      "duration_ms": 2
     }
   },
-  "next_node_id": "verify",
+  "next_node_id": "exit",
   "node_visits": {
     "setup": 1,
-    "work": 1,
-    "start": 1
+    "verify": 1,
+    "start": 1,
+    "work": 1
   }
 }

nodes/verify/script_invocation.json

@@ -0,0 +1,5 @@
+{
+  "command": "cat /tmp/scenario_flag.txt",
+  "language": "shell",
+  "timeout_ms": null
+}

nodes/verify/script_timing.json

@@ -0,0 +1,5 @@
+{
+  "duration_ms": 4,
+  "exit_code": 0,
+  "timed_out": false
+}

nodes/verify/status.json

@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Script completed: cat /tmp/scenario_flag.txt",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:41:09.727914+00:00"
+}