From 0b831c2823caa7cb40993e6c7bc263c7764bb877 Mon Sep 17 00:00:00 2001
From: Fabro <noreply@fabro.sh>
Date: Thu, 19 Mar 2026 09:04:00 -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/work/prompt.md          | 10 +++++++++
 nodes/work/provider_used.json |  5 +++++
 nodes/work/response.md        |  3 +++
 nodes/work/status.json        |  6 ++++++
 5 files changed, 57 insertions(+), 7 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 396acc5d5..c7a09c2a0 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,29 +1,36 @@
 {
-  "timestamp": "2026-03-19T13:03:52.450359Z",
-  "current_node": "setup",
+  "timestamp": "2026-03-19T13:04:00.517229Z",
+  "current_node": "work",
   "completed_nodes": [
     "start",
-    "setup"
+    "setup",
+    "work"
   ],
   "node_retries": {
     "setup": 1,
+    "work": 1,
     "start": 1
   },
   "context_values": {
     "failure_class": "",
     "graph.goal": "Verify sandbox filesystem is shared across command and agent nodes",
     "internal.run_id": "01KM333Y478W12S46ZX8RWD3DE",
+    "internal.retry_count.work": 1,
     "command.output": "",
     "internal.work_dir": "/private/var/folders/nm/bd2dwzy52t1ckn3tklsfmy1c0000gn/T/.tmpcm8r7C/run/worktree",
     "command.stderr": "",
     "outcome": "success",
-    "internal.thread_id": "start",
-    "current.preamble": "Goal: Verify sandbox filesystem is shared across command and agent nodes\n",
+    "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",
+    "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",
     "thread.start.current_node": "setup",
-    "current_node": "setup",
+    "current_node": "work",
     "internal.retry_count.start": 1,
     "failure_signature": "",
+    "thread.setup.current_node": "work",
     "internal.node_visit_count": 1,
+    "last_stage": "work",
     "graph.rankdir": "LR",
     "internal.fidelity": "compact",
     "internal.retry_count.setup": 1
@@ -34,6 +41,24 @@
       "status": "success",
       "duration_ms": 0
     },
+    "work": {
+      "status": "success",
+      "context_updates": {
+        "last_stage": "work",
+        "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",
+        "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."
+      },
+      "notes": "Stage completed: work",
+      "usage": {
+        "model": "claude-haiku-4-5",
+        "input_tokens": 502,
+        "output_tokens": 143,
+        "cache_read_tokens": 4725,
+        "cache_write_tokens": 5130,
+        "cost": 0.0009736
+      },
+      "duration_ms": 5527
+    },
     "setup": {
       "status": "success",
       "context_updates": {
@@ -44,9 +69,10 @@
       "duration_ms": 4
     }
   },
-  "next_node_id": "work",
+  "next_node_id": "verify",
   "node_visits": {
     "start": 1,
+    "work": 1,
     "setup": 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..34619f8d2
--- /dev/null
+++ b/nodes/work/response.md
@@ -0,0 +1,3 @@
+The file contains: **`SCENARIO_FLAG_42`**
+
+The 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.
\ No newline at end of file
diff --git a/nodes/work/status.json b/nodes/work/status.json
new file mode 100644
index 000000000..593cbf6af
--- /dev/null
+++ b/nodes/work/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: work",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:04:00.516948+00:00"
+}
\ No newline at end of file