From a60dcfa20423d5b76f8e2c571b700460443eec0c Mon Sep 17 00:00:00 2001
From: Fabro <noreply@fabro.sh>
Date: Thu, 19 Mar 2026 09:48:00 -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                     | 40 +++++++++++++++++++----------
 nodes/verify/script_invocation.json |  5 ++++
 nodes/verify/script_timing.json     |  5 ++++
 nodes/verify/status.json            |  6 +++++
 4 files changed, 43 insertions(+), 13 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 ece1e86fd..0eab7ca8f 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,30 +1,34 @@
 {
-  "timestamp": "2026-03-19T13:47:58.252911Z",
-  "current_node": "work",
+  "timestamp": "2026-03-19T13:48:00.584059Z",
+  "current_node": "verify",
   "completed_nodes": [
     "start",
     "setup",
-    "work"
+    "work",
+    "verify"
   ],
   "node_retries": {
-    "start": 1,
     "work": 1,
+    "verify": 1,
+    "start": 1,
     "setup": 1
   },
   "context_values": {
     "failure_signature": "",
     "internal.run_id": "01KM35MF3WT0ZP15ZFQ8VK2YVZ",
-    "internal.thread_id": "setup",
-    "command.output": "",
+    "internal.thread_id": "work",
+    "command.output": "SCENARIO_FLAG_42\n",
     "command.stderr": "",
-    "current_node": "work",
+    "current_node": "verify",
     "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, 505 tokens in / 138 out\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.",
+    "internal.retry_count.verify": 1,
     "graph.rankdir": "LR",
+    "thread.work.current_node": "verify",
     "internal.fidelity": "compact",
     "internal.retry_count.start": 1,
     "last_stage": "work",
@@ -37,10 +41,6 @@
   },
   "logs": [],
   "node_outcomes": {
-    "start": {
-      "status": "success",
-      "duration_ms": 0
-    },
     "setup": {
       "status": "success",
       "context_updates": {
@@ -67,10 +67,24 @@
         "cost": 0.000956
       },
       "duration_ms": 3831
+    },
+    "verify": {
+      "status": "success",
+      "context_updates": {
+        "command.output": "SCENARIO_FLAG_42\n",
+        "command.stderr": ""
+      },
+      "notes": "Script completed: cat /tmp/scenario_flag.txt",
+      "duration_ms": 4
+    },
+    "start": {
+      "status": "success",
+      "duration_ms": 0
     }
   },
-  "next_node_id": "verify",
+  "next_node_id": "exit",
   "node_visits": {
+    "verify": 1,
     "setup": 1,
     "start": 1,
     "work": 1
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..8abf78a69
--- /dev/null
+++ b/nodes/verify/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 3,
+  "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..2fabf68e3
--- /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": "2026-03-19T13:48:00.583828+00:00"
+}
\ No newline at end of file