checkpoint

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

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
   }
 }

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": 3,
+  "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": "2026-03-19T13:04:02.774664+00:00"
+}