fix(mem0-plugin): review fixes — loop guard, v3 response format, robustness

- on_stop_cursor.sh: add loop_count guard to prevent infinite re-entry
- on_stop.sh: drop set -e so stats failure doesn't kill the reminder
- _identity.py: fix fallback stub signatures to match production (accept cwd arg)
- on_pre_compact.py: add missing infer=False on session_state writes
- on_session_start.sh: handle v3 search response format (dict with results key)
- Align all plugin versions to 0.2.1 (Claude Code, Codex, Cursor)

mem0-plugin/.codex-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "mem0",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Mem0 memory layer for AI applications. Add persistent memory, personalization, and semantic search to Codex workflows using the Mem0 Platform MCP server.",
   "author": {
     "name": "Mem0",

mem0-plugin/.cursor-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "mem0",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Mem0 memory layer for AI applications. Add persistent memory, personalization, and semantic search using the Mem0 Platform MCP server.",
   "author": {
     "name": "Mem0",

mem0-plugin/scripts/_identity.py

@@ -31,10 +31,10 @@ def resolve_user_id() -> str:
 try:
     from _project import resolve_branch, resolve_project_id, save_project_mapping
 except ImportError:
-    def resolve_project_id() -> str:
-        return os.path.basename(os.getcwd())
+    def resolve_project_id(cwd: str | None = None) -> str:
+        return os.path.basename(cwd or os.getcwd())
 
-    def resolve_branch() -> str:
+    def resolve_branch(cwd: str | None = None) -> str:
         return "unknown"
 
     def save_project_mapping(cwd: str, project_id: str) -> None:

mem0-plugin/scripts/on_pre_compact.py

@@ -186,6 +186,7 @@ def store_memory(api_key: str, content: str, user_id: str, source: str, session_
         "app_id": project_id,
         "metadata": metadata,
         "expiration_date": expires,
+        "infer": False,
     }
 
     data = json.dumps(body).encode("utf-8")

mem0-plugin/scripts/on_session_start.sh

@@ -53,12 +53,15 @@ req = urllib.request.Request(
 )
 try:
     with urllib.request.urlopen(req, timeout=5) as r:
-        results = json.loads(r.read())
-        if isinstance(results, list):
-            n = len(results)
-            print(f'{n}+' if n >= 100 else str(n))
+        data = json.loads(r.read())
+        if isinstance(data, list):
+            results = data
+        elif isinstance(data, dict) and 'results' in data:
+            results = data['results']
         else:
-            print('?')
+            print('?'); raise SystemExit
+        n = len(results)
+        print(f'{n}+' if n >= 100 else str(n))
 except Exception:
     print('?')
 " 2>/dev/null || echo "?")

mem0-plugin/scripts/on_stop.sh

@@ -10,7 +10,8 @@
 #
 # IMPORTANT: Check stop_hook_active to avoid infinite loops.
 
-set -euo pipefail
+# Intentionally omit -e so the reminder always emits even if session_stats fails.
+set -uo pipefail
 
 if [ -n "${MEM0_DEBUG:-}" ]; then
   mkdir -p "$HOME/.mem0" && exec 2>>"$HOME/.mem0/hooks.log"

mem0-plugin/scripts/on_stop_cursor.sh

@@ -19,6 +19,14 @@ SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 
 INPUT=$(cat)
 
+# Guard against infinite loops: if this is a re-entry after a prior followup,
+# let the turn end. Cursor exposes loop_count in the input JSON.
+LOOP_COUNT=$(echo "$INPUT" | jq -r '.loop_count // 0' 2>/dev/null || echo "0")
+if [ "$LOOP_COUNT" -gt 1 ]; then
+  echo '{}'
+  exit 0
+fi
+
 # Session-end report (best-effort)
 REPORT=$(python3 "$SCRIPT_DIR/session_stats.py" report 2>/dev/null || echo "")
 REPORT_BLOCK=""