diff --git a/agents/plan-git-harden-sh-design-spec-2153/events.log b/agents/plan-git-harden-sh-design-spec-2153/events.log
index ef6dcda..85860cd 100644
--- a/agents/plan-git-harden-sh-design-spec-2153/events.log
+++ b/agents/plan-git-harden-sh-design-spec-2153/events.log
@@ -1 +1,2 @@
 {"agent_id":"plan-git-harden-sh-design-spec-2153","agent_seq":1,"timestamp":"2026-03-27T16:51:56.555466Z","event":{"type":"LockClaimed","issue_display_id":1}}
+{"agent_id":"plan-git-harden-sh-design-spec-2153","agent_seq":2,"timestamp":"2026-03-27T16:52:41.698490Z","event":{"type":"LockReleased","issue_display_id":1}}
diff --git a/checkpoint/state.json b/checkpoint/state.json
index d3d36fc..cec1358 100644
--- a/checkpoint/state.json
+++ b/checkpoint/state.json
@@ -2,23 +2,18 @@
   "next_display_id": 1,
   "next_comment_id": 1,
   "display_id_map": {},
-  "locks": {
-    "1": {
-      "agent_id": "plan-git-harden-sh-design-spec-2153",
-      "claimed_at": "2026-03-27T16:51:56.555466Z"
-    }
-  },
+  "locks": {},
   "issues": {},
   "unsigned_event_warnings": [
     {
       "agent_id": "plan-git-harden-sh-design-spec-2153",
-      "agent_seq": 1,
-      "timestamp": "2026-03-27T16:51:56.555466Z"
+      "agent_seq": 2,
+      "timestamp": "2026-03-27T16:52:41.698490Z"
     }
   ],
   "watermark": {
-    "timestamp": "2026-03-27T16:51:56.555466Z",
+    "timestamp": "2026-03-27T16:52:41.698490Z",
     "agent_id": "plan-git-harden-sh-design-spec-2153",
-    "agent_seq": 1
+    "agent_seq": 2
   }
 }
\ No newline at end of file
diff --git a/locks/1.json b/locks/1.json
deleted file mode 100644
index 8f0a497..0000000
--- a/locks/1.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "issue_id": 1,
-  "agent_id": "plan-git-harden-sh-design-spec-2153",
-  "claimed_at": "2026-03-27T16:51:56.555466Z"
-}
\ No newline at end of file