From 7c130a775d18c9ddd5c52467e268c0ae44e94f53 Mon Sep 17 00:00:00 2001
From: Fabro <noreply@fabro.sh>
Date: Thu, 19 Mar 2026 09:28:33 -0400
Subject: [PATCH] checkpoint
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

⚒️ Generated with [Fabro](https://fabro.sh)
---
 checkpoint.json                     | 32 +++++++++++++++++++++--------
 nodes/verify/script_invocation.json |  5 +++++
 nodes/verify/script_timing.json     |  5 +++++
 nodes/verify/status.json            |  6 ++++++
 4 files changed, 39 insertions(+), 9 deletions(-)
 create mode 100644 nodes/verify/script_invocation.json
 create mode 100644 nodes/verify/script_timing.json
 create mode 100644 nodes/verify/status.json

diff --git a/checkpoint.json b/checkpoint.json
index 4b25929b5..de829e5a3 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,13 +1,15 @@
 {
-  "timestamp": "2026-03-19T13:28:31.323789Z",
-  "current_node": "work",
+  "timestamp": "2026-03-19T13:28:33.383471Z",
+  "current_node": "verify",
   "completed_nodes": [
     "start",
     "setup",
-    "work"
+    "work",
+    "verify"
   ],
   "node_retries": {
     "start": 1,
+    "verify": 1,
     "setup": 1,
     "work": 1
   },
@@ -15,17 +17,18 @@
     "graph.rankdir": "LR",
     "internal.run_id": "01KM34GS7MYBV3D0YN2V19YPXZ",
     "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\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, 509 tokens in / 168 out\n",
     "failure_signature": "",
     "thread.start.current_node": "setup",
-    "command.output": "",
+    "command.output": "SCENARIO_FLAG_42\n",
     "thread.setup.current_node": "work",
     "internal.retry_count.work": 1,
     "outcome": "success",
+    "internal.retry_count.verify": 1,
     "failure_class": "",
     "internal.fidelity": "compact",
-    "current_node": "work",
-    "internal.thread_id": "setup",
+    "current_node": "verify",
+    "internal.thread_id": "work",
     "internal.retry_count.start": 1,
     "response.work": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the sandbox filesystem is shared across nodes. The setup stage successfully created the file with the content `SCENARIO_FLAG_42`, and I was able to read it from the current context. This demonstrates that the filesystem is properly shared and accessible across different stages/nodes in the workflow.",
     "internal.node_visit_count": 1,
@@ -33,6 +36,7 @@
     "command.stderr": "",
     "internal.work_dir": "/private/var/folders/nm/bd2dwzy52t1ckn3tklsfmy1c0000gn/T/.tmpQYUGzd/run/worktree",
     "last_stage": "work",
+    "thread.work.current_node": "verify",
     "internal.retry_count.setup": 1
   },
   "logs": [],
@@ -67,12 +71,22 @@
         "cost": 0.0010792
       },
       "duration_ms": 6545
+    },
+    "verify": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": "SCENARIO_FLAG_42\n"
+      },
+      "notes": "Script completed: cat /tmp/scenario_flag.txt",
+      "duration_ms": 4
     }
   },
-  "next_node_id": "verify",
+  "next_node_id": "exit",
   "node_visits": {
     "setup": 1,
     "work": 1,
-    "start": 1
+    "start": 1,
+    "verify": 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..c06dc5eb7
--- /dev/null
+++ b/nodes/verify/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 4,
+  "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..6d85e1fca
--- /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": "2026-03-19T13:28:33.383207+00:00"
+}
\ No newline at end of file