checkpoint

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

checkpoint.json

@@ -1,45 +1,50 @@
 {
-  "timestamp": "2026-03-19T13:28:36.217413Z",
-  "current_node": "approve",
+  "timestamp": "2026-03-19T13:28:52.324972Z",
+  "current_node": "impl",
   "completed_nodes": [
     "start",
     "setup",
     "plan",
-    "approve"
+    "approve",
+    "impl"
   ],
   "node_retries": {
     "start": 1,
     "approve": 1,
     "plan": 1,
+    "impl": 1,
     "setup": 1
   },
   "context_values": {
     "internal.fidelity": "compact",
     "internal.run_id": "01KM34GS9875W8ZP64K0YE6BYG",
-    "current_node": "approve",
-    "internal.retry_count.start": 1,
-    "thread.setup.current_node": "plan",
+    "thread.approve.current_node": "impl",
     "outcome": "success",
-    "response.plan": "I'll help you complete this scenario. Let me break this down:\n\n1. Read `/tmp/scenario_full/flag.txt` (which was created with content \"ready\")\n2. Create `/tmp/scenario_full/result.txt` with the word \"PASS\"\n\nLet me execute this:\n\n```bash\ncat /tmp/scenario_full/flag.txt && echo PASS > /tmp/scenario_full/result.txt && cat /tmp/scenario_full/result.txt\n```\n\nThis command:\n1. Reads the flag file (should output \"ready\")\n2. Creates result.txt with \"PASS\"\n3. Verifies by reading result.txt back\n\n**Expected output:**\n```\nready\nPASS\n```\n\nIf you're running this through the Fabro workflow system, this could be structured as:\n- **Command stage**: Read the flag file to verify setup completed\n- **Agent stage**: Create the result file with proper content\n- **Human gate**: Manual verification that result.txt exists and contains \"PASS\"\n- **Goal gate**: Automated verification that `/tmp/scenario_full/result.txt` contains exactly \"PASS\"\n\nWould you like me to help create a workflow definition (in Graphviz/TOML format) that orchestrates these stages with proper gate verification?",
     "internal.retry_count.approve": 1,
+    "internal.retry_count.plan": 1,
+    "internal.node_visit_count": 1,
+    "current.preamble": "Goal: Full-stack scenario: command, agent, human gate, and goal gate verification\n\n## Completed stages\n- **setup**: success\n  - Script: `mkdir -p /tmp/scenario_full && echo ready > /tmp/scenario_full/flag.txt`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **plan**: success\n  - Model: claude-haiku-4-5, 2.1k tokens in / 295 out\n- **approve**: success\n\n## Context\n- human.gate.label: [A] Approve\n- human.gate.selected: A\n",
+    "graph.goal": "Full-stack scenario: command, agent, human gate, and goal gate verification",
+    "internal.retry_count.setup": 1,
+    "human.gate.label": "[A] Approve",
+    "internal.thread_id": "approve",
+    "human.gate.selected": "A",
+    "thread.setup.current_node": "plan",
+    "current_node": "impl",
+    "internal.retry_count.start": 1,
+    "response.plan": "I'll help you complete this scenario. Let me break this down:\n\n1. Read `/tmp/scenario_full/flag.txt` (which was created with content \"ready\")\n2. Create `/tmp/scenario_full/result.txt` with the word \"PASS\"\n\nLet me execute this:\n\n```bash\ncat /tmp/scenario_full/flag.txt && echo PASS > /tmp/scenario_full/result.txt && cat /tmp/scenario_full/result.txt\n```\n\nThis command:\n1. Reads the flag file (should output \"ready\")\n2. Creates result.txt with \"PASS\"\n3. Verifies by reading result.txt back\n\n**Expected output:**\n```\nready\nPASS\n```\n\nIf you're running this through the Fabro workflow system, this could be structured as:\n- **Command stage**: Read the flag file to verify setup completed\n- **Agent stage**: Create the result file with proper content\n- **Human gate**: Manual verification that result.txt exists and contains \"PASS\"\n- **Goal gate**: Automated verification that `/tmp/scenario_full/result.txt` contains exactly \"PASS\"\n\nWould you like me to help create a workflow definition (in Graphviz/TOML format) that orchestrates these stages with proper gate verification?",
+    "response.impl": "✅ Complete! The file `/tmp/scenario_full/result.txt` has been created with exactly \"PASS\" on the first line as requested. The scenario workflow stages are now complete.",
     "command.stderr": "",
     "command.output": "",
     "failure_class": "",
-    "internal.retry_count.plan": 1,
-    "internal.node_visit_count": 1,
-    "current.preamble": "Goal: Full-stack scenario: command, agent, human gate, and goal gate verification\n\n## Completed stages\n- **setup**: success\n  - Script: `mkdir -p /tmp/scenario_full && echo ready > /tmp/scenario_full/flag.txt`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **plan**: success\n  - Model: claude-haiku-4-5, 2.1k tokens in / 295 out\n",
     "preferred_label": "[A] Approve",
     "thread.start.current_node": "setup",
     "graph.rankdir": "LR",
-    "graph.goal": "Full-stack scenario: command, agent, human gate, and goal gate verification",
-    "internal.retry_count.setup": 1,
+    "internal.retry_count.impl": 1,
     "thread.plan.current_node": "approve",
-    "human.gate.label": "[A] Approve",
-    "internal.thread_id": "plan",
     "failure_signature": "",
-    "last_stage": "plan",
-    "last_response": "I'll help you complete this scenario. Let me break this down:\n\n1. Read `/tmp/scenario_full/flag.txt` (which was created with content \"ready\")\n2. Create `/tmp/scenario_full/result.txt` with the word \"P",
-    "human.gate.selected": "A"
+    "last_stage": "impl",
+    "last_response": "✅ Complete! The file `/tmp/scenario_full/result.txt` has been created with exactly \"PASS\" on the first line as requested. The scenario workflow stages are now complete."
   },
   "logs": [],
   "node_outcomes": {
@@ -85,11 +90,30 @@
         "cost": 0.0028728
       },
       "duration_ms": 5201
+    },
+    "impl": {
+      "status": "success",
+      "context_updates": {
+        "last_response": "✅ Complete! The file `/tmp/scenario_full/result.txt` has been created with exactly \"PASS\" on the first line as requested. The scenario workflow stages are now complete.",
+        "last_stage": "impl",
+        "response.impl": "✅ Complete! The file `/tmp/scenario_full/result.txt` has been created with exactly \"PASS\" on the first line as requested. The scenario workflow stages are now complete."
+      },
+      "notes": "Stage completed: impl",
+      "usage": {
+        "model": "claude-haiku-4-5",
+        "input_tokens": 801,
+        "output_tokens": 301,
+        "cache_read_tokens": 9935,
+        "cache_write_tokens": 5366,
+        "cost": 0.0018448000000000002
+      },
+      "duration_ms": 13776
     }
   },
-  "next_node_id": "impl",
+  "next_node_id": "verify",
   "node_visits": {
     "start": 1,
+    "impl": 1,
     "plan": 1,
     "approve": 1,
     "setup": 1

nodes/impl/prompt.md

@@ -0,0 +1,17 @@
+Goal: Full-stack scenario: command, agent, human gate, and goal gate verification
+
+## Completed stages
+- **setup**: success
+  - Script: `mkdir -p /tmp/scenario_full && echo ready > /tmp/scenario_full/flag.txt`
+  - Stdout: (empty)
+  - Stderr: (empty)
+- **plan**: success
+  - Model: claude-haiku-4-5, 2.1k tokens in / 295 out
+- **approve**: success
+
+## Context
+- human.gate.label: [A] Approve
+- human.gate.selected: A
+
+
+Create the file /tmp/scenario_full/result.txt containing exactly the word PASS on the first line.

nodes/impl/provider_used.json

@@ -0,0 +1,5 @@
+{
+  "mode": "agent",
+  "provider": "anthropic",
+  "model": "claude-haiku-4-5"
+}

nodes/impl/response.md

@@ -0,0 +1 @@
+✅ Complete! The file `/tmp/scenario_full/result.txt` has been created with exactly "PASS" on the first line as requested. The scenario workflow stages are now complete.

nodes/impl/status.json

@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: impl",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:28:52.324617+00:00"
+}