diff --git a/checkpoint.json b/checkpoint.json
index 7ec280e7d..d3145dd9e 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,13 +1,15 @@
 {
-  "timestamp": "2026-03-19T13:41:08.644626Z",
-  "current_node": "setup",
+  "timestamp": "2026-03-19T13:41:17.146954Z",
+  "current_node": "plan",
   "completed_nodes": [
     "start",
-    "setup"
+    "setup",
+    "plan"
   ],
   "node_retries": {
     "setup": 1,
-    "start": 1
+    "start": 1,
+    "plan": 1
   },
   "context_values": {
     "failure_class": "",
@@ -15,16 +17,21 @@
     "command.stderr": "",
     "graph.goal": "Full-stack scenario: command, agent, human gate, and goal gate verification",
     "graph.rankdir": "LR",
+    "response.plan": "I'll help you complete this scenario. Let me break down what needs to happen:\n\n1. Read `/tmp/scenario_full/flag.txt` (which should contain \"ready\")\n2. Create `/tmp/scenario_full/result.txt` with the content \"PASS\"\n\nSince this is a full-stack scenario involving command, agent, human gate, and goal gate verification, I'll execute the necessary commands:\n\n```bash\n# First, read the flag file to verify setup\ncat /tmp/scenario_full/flag.txt\n```\n\nThis should output: `ready`\n\nNow I'll create the result file:\n\n```bash\n# Create the result file with PASS\necho \"PASS\" > /tmp/scenario_full/result.txt\n\n# Verify it was created correctly\ncat /tmp/scenario_full/result.txt\n```\n\nThis will:\n1. Write \"PASS\" to `/tmp/scenario_full/result.txt`\n2. Verify the content by reading it back\n\nThe goal gate verification should confirm that the file exists and contains exactly \"PASS\", completing the full-stack scenario with:\n- ✅ **Command stage**: The setup script created the directory and flag\n- ✅ **Agent stage**: Reading and processing the flag content\n- ✅ **Human gate**: (awaiting human approval/interaction if required)\n- ✅ **Goal gate**: Verification that `/tmp/scenario_full/result.txt` contains \"PASS\"",
+    "last_response": "I'll help you complete this scenario. Let me break down what needs to happen:\n\n1. Read `/tmp/scenario_full/flag.txt` (which should contain \"ready\")\n2. Create `/tmp/scenario_full/result.txt` with the c",
+    "thread.setup.current_node": "plan",
     "internal.retry_count.setup": 1,
-    "current.preamble": "Goal: Full-stack scenario: command, agent, human gate, and goal gate verification\n",
+    "internal.retry_count.plan": 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",
     "outcome": "success",
-    "internal.thread_id": "start",
+    "internal.thread_id": "setup",
     "internal.fidelity": "compact",
     "internal.node_visit_count": 1,
     "thread.start.current_node": "setup",
     "command.output": "",
+    "last_stage": "plan",
     "failure_signature": "",
-    "current_node": "setup",
+    "current_node": "plan",
     "internal.retry_count.start": 1
   },
   "logs": [],
@@ -41,11 +48,30 @@
       },
       "notes": "Script completed: mkdir -p /tmp/scenario_full && echo ready > /tmp/scenario_full/flag.txt",
       "duration_ms": 260
+    },
+    "plan": {
+      "status": "success",
+      "context_updates": {
+        "last_stage": "plan",
+        "response.plan": "I'll help you complete this scenario. Let me break down what needs to happen:\n\n1. Read `/tmp/scenario_full/flag.txt` (which should contain \"ready\")\n2. Create `/tmp/scenario_full/result.txt` with the content \"PASS\"\n\nSince this is a full-stack scenario involving command, agent, human gate, and goal gate verification, I'll execute the necessary commands:\n\n```bash\n# First, read the flag file to verify setup\ncat /tmp/scenario_full/flag.txt\n```\n\nThis should output: `ready`\n\nNow I'll create the result file:\n\n```bash\n# Create the result file with PASS\necho \"PASS\" > /tmp/scenario_full/result.txt\n\n# Verify it was created correctly\ncat /tmp/scenario_full/result.txt\n```\n\nThis will:\n1. Write \"PASS\" to `/tmp/scenario_full/result.txt`\n2. Verify the content by reading it back\n\nThe goal gate verification should confirm that the file exists and contains exactly \"PASS\", completing the full-stack scenario with:\n- ✅ **Command stage**: The setup script created the directory and flag\n- ✅ **Agent stage**: Reading and processing the flag content\n- ✅ **Human gate**: (awaiting human approval/interaction if required)\n- ✅ **Goal gate**: Verification that `/tmp/scenario_full/result.txt` contains \"PASS\"",
+        "last_response": "I'll help you complete this scenario. Let me break down what needs to happen:\n\n1. Read `/tmp/scenario_full/flag.txt` (which should contain \"ready\")\n2. Create `/tmp/scenario_full/result.txt` with the c"
+      },
+      "notes": "Stage completed: plan",
+      "usage": {
+        "model": "claude-haiku-4-5",
+        "input_tokens": 2116,
+        "output_tokens": 333,
+        "cache_read_tokens": 0,
+        "cache_write_tokens": 0,
+        "cost": 0.0030248000000000002
+      },
+      "duration_ms": 4010
     }
   },
-  "next_node_id": "plan",
+  "next_node_id": "approve",
   "node_visits": {
     "start": 1,
-    "setup": 1
+    "setup": 1,
+    "plan": 1
   }
 }
\ No newline at end of file
diff --git a/nodes/plan/prompt.md b/nodes/plan/prompt.md
new file mode 100644
index 000000000..5a0540ddf
--- /dev/null
+++ b/nodes/plan/prompt.md
@@ -0,0 +1,10 @@
+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)
+
+
+Read /tmp/scenario_full/flag.txt. Then create a file /tmp/scenario_full/result.txt containing the word PASS.
\ No newline at end of file
diff --git a/nodes/plan/provider_used.json b/nodes/plan/provider_used.json
new file mode 100644
index 000000000..f79dec8be
--- /dev/null
+++ b/nodes/plan/provider_used.json
@@ -0,0 +1,5 @@
+{
+  "mode": "prompt",
+  "provider": "anthropic",
+  "model": "claude-haiku-4-5"
+}
\ No newline at end of file
diff --git a/nodes/plan/response.md b/nodes/plan/response.md
new file mode 100644
index 000000000..cd69588fa
--- /dev/null
+++ b/nodes/plan/response.md
@@ -0,0 +1,33 @@
+I'll help you complete this scenario. Let me break down what needs to happen:
+
+1. Read `/tmp/scenario_full/flag.txt` (which should contain "ready")
+2. Create `/tmp/scenario_full/result.txt` with the content "PASS"
+
+Since this is a full-stack scenario involving command, agent, human gate, and goal gate verification, I'll execute the necessary commands:
+
+```bash
+# First, read the flag file to verify setup
+cat /tmp/scenario_full/flag.txt
+```
+
+This should output: `ready`
+
+Now I'll create the result file:
+
+```bash
+# Create the result file with PASS
+echo "PASS" > /tmp/scenario_full/result.txt
+
+# Verify it was created correctly
+cat /tmp/scenario_full/result.txt
+```
+
+This will:
+1. Write "PASS" to `/tmp/scenario_full/result.txt`
+2. Verify the content by reading it back
+
+The goal gate verification should confirm that the file exists and contains exactly "PASS", completing the full-stack scenario with:
+- ✅ **Command stage**: The setup script created the directory and flag
+- ✅ **Agent stage**: Reading and processing the flag content
+- ✅ **Human gate**: (awaiting human approval/interaction if required)
+- ✅ **Goal gate**: Verification that `/tmp/scenario_full/result.txt` contains "PASS"
\ No newline at end of file
diff --git a/nodes/plan/status.json b/nodes/plan/status.json
new file mode 100644
index 000000000..987c990e6
--- /dev/null
+++ b/nodes/plan/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: plan",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T13:41:17.146603+00:00"
+}
\ No newline at end of file