From 606389b866b63278acd71103c5ac39fae2544cee Mon Sep 17 00:00:00 2001
From: Fabro <noreply@fabro.sh>
Date: Thu, 19 Mar 2026 09:41:18 -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               | 42 ++++++++++++++++++++++++++++-------
 nodes/work/prompt.md          | 10 +++++++++
 nodes/work/provider_used.json |  5 +++++
 nodes/work/response.md        |  7 ++++++
 nodes/work/status.json        |  6 +++++
 5 files changed, 62 insertions(+), 8 deletions(-)
 create mode 100644 nodes/work/prompt.md
 create mode 100644 nodes/work/provider_used.json
 create mode 100644 nodes/work/response.md
 create mode 100644 nodes/work/status.json

diff --git a/checkpoint.json b/checkpoint.json
index bb06e78c2..08fb16f72 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,34 +1,59 @@
 {
-  "timestamp": "2026-03-19T13:41:08.793259Z",
-  "current_node": "setup",
+  "timestamp": "2026-03-19T13:41:18.206818Z",
+  "current_node": "work",
   "completed_nodes": [
     "start",
-    "setup"
+    "setup",
+    "work"
   ],
   "node_retries": {
+    "work": 1,
     "setup": 1,
     "start": 1
   },
   "context_values": {
     "thread.start.current_node": "setup",
+    "internal.retry_count.work": 1,
     "internal.node_visit_count": 1,
+    "thread.setup.current_node": "work",
     "graph.rankdir": "LR",
-    "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",
     "graph.goal": "Verify sandbox filesystem is shared across command and agent nodes",
     "internal.fidelity": "compact",
     "command.output": "",
+    "last_stage": "work",
     "command.stderr": "",
-    "internal.thread_id": "start",
+    "internal.thread_id": "setup",
     "internal.run_id": "01KM357YC0HE1D4QEDDHP8V8CN",
     "failure_class": "",
+    "last_response": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the file created in the setup stage is accessible and readable. This is consistent with the goal of v",
+    "response.work": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the file created in the setup stage is accessible and readable. This is consistent with the goal of verifying that the sandbox filesystem is shared across command and agent nodes - the setup stage successfully created the file, and we can now read it from the current environment.",
     "internal.retry_count.setup": 1,
     "failure_signature": "",
     "internal.retry_count.start": 1,
     "outcome": "success",
-    "current_node": "setup"
+    "current_node": "work"
   },
   "logs": [],
   "node_outcomes": {
+    "work": {
+      "status": "success",
+      "context_updates": {
+        "last_stage": "work",
+        "last_response": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the file created in the setup stage is accessible and readable. This is consistent with the goal of v",
+        "response.work": "Perfect! The file `/tmp/scenario_flag.txt` contains:\n\n```\nSCENARIO_FLAG_42\n```\n\nThis confirms that the file created in the setup stage is accessible and readable. This is consistent with the goal of verifying that the sandbox filesystem is shared across command and agent nodes - the setup stage successfully created the file, and we can now read it from the current environment."
+      },
+      "notes": "Stage completed: work",
+      "usage": {
+        "model": "claude-haiku-4-5",
+        "input_tokens": 494,
+        "output_tokens": 148,
+        "cache_read_tokens": 4688,
+        "cache_write_tokens": 5093,
+        "cost": 0.0009872000000000001
+      },
+      "duration_ms": 5399
+    },
     "start": {
       "status": "success",
       "duration_ms": 0
@@ -43,9 +68,10 @@
       "duration_ms": 89
     }
   },
-  "next_node_id": "work",
+  "next_node_id": "verify",
   "node_visits": {
     "setup": 1,
-    "start": 1
+    "start": 1,
+    "work": 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..7bf5baeef
--- /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 file created in the setup stage is accessible and readable. This is consistent with the goal of verifying that the sandbox filesystem is shared across command and agent nodes - the setup stage successfully created the file, and we can now read it from the current environment.
\ No newline at end of file
diff --git a/nodes/work/status.json b/nodes/work/status.json
new file mode 100644
index 000000000..27df27fa6
--- /dev/null
+++ b/nodes/work/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: work",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:41:18.206090+00:00"
+}
\ No newline at end of file