diff --git a/plugins/hookify/core/rule_engine.py b/plugins/hookify/core/rule_engine.py
index 8244c00591..51561c39e9 100644
--- a/plugins/hookify/core/rule_engine.py
+++ b/plugins/hookify/core/rule_engine.py
@@ -7,7 +7,7 @@
 from typing import List, Dict, Any, Optional
 
 # Import from local module
-from hookify.core.config_loader import Rule, Condition
+from core.config_loader import Rule, Condition
 
 
 # Cache compiled regexes (max 128 patterns)
@@ -275,7 +275,7 @@ def _regex_match(self, pattern: str, text: str) -> bool:
 
 # For testing
 if __name__ == '__main__':
-    from hookify.core.config_loader import Condition, Rule
+    from core.config_loader import Condition, Rule
 
     # Test rule evaluation
     rule = Rule(
diff --git a/plugins/hookify/hooks/posttooluse.py b/plugins/hookify/hooks/posttooluse.py
index a9e12cc797..c371eba9f1 100755
--- a/plugins/hookify/hooks/posttooluse.py
+++ b/plugins/hookify/hooks/posttooluse.py
@@ -9,18 +9,15 @@
 import sys
 import json
 
-# CRITICAL: Add plugin root to Python path for imports
-PLUGIN_ROOT = os.environ.get('CLAUDE_PLUGIN_ROOT')
-if PLUGIN_ROOT:
-    parent_dir = os.path.dirname(PLUGIN_ROOT)
-    if parent_dir not in sys.path:
-        sys.path.insert(0, parent_dir)
-    if PLUGIN_ROOT not in sys.path:
-        sys.path.insert(0, PLUGIN_ROOT)
+# Derive plugin root from this file's location (hooks/ -> plugin root)
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+PLUGIN_ROOT = os.path.dirname(SCRIPT_DIR)
+if PLUGIN_ROOT not in sys.path:
+    sys.path.insert(0, PLUGIN_ROOT)
 
 try:
-    from hookify.core.config_loader import load_rules
-    from hookify.core.rule_engine import RuleEngine
+    from core.config_loader import load_rules
+    from core.rule_engine import RuleEngine
 except ImportError as e:
     error_msg = {"systemMessage": f"Hookify import error: {e}"}
     print(json.dumps(error_msg), file=sys.stdout)
diff --git a/plugins/hookify/hooks/pretooluse.py b/plugins/hookify/hooks/pretooluse.py
index f265c277e3..b841a50412 100755
--- a/plugins/hookify/hooks/pretooluse.py
+++ b/plugins/hookify/hooks/pretooluse.py
@@ -9,22 +9,18 @@
 import sys
 import json
 
-# CRITICAL: Add plugin root to Python path for imports
-# We need to add the parent of the plugin directory so Python can find "hookify" package
-PLUGIN_ROOT = os.environ.get('CLAUDE_PLUGIN_ROOT')
-if PLUGIN_ROOT:
-    # Add the parent directory of the plugin
-    parent_dir = os.path.dirname(PLUGIN_ROOT)
-    if parent_dir not in sys.path:
-        sys.path.insert(0, parent_dir)
-
-    # Also add PLUGIN_ROOT itself in case we have other scripts
-    if PLUGIN_ROOT not in sys.path:
-        sys.path.insert(0, PLUGIN_ROOT)
+# Derive plugin root from this file's location (hooks/ -> plugin root)
+# This is reliable regardless of whether CLAUDE_PLUGIN_ROOT is set,
+# and avoids the broken "hookify" package assumption caused by the
+# version directory in the plugin cache path.
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+PLUGIN_ROOT = os.path.dirname(SCRIPT_DIR)
+if PLUGIN_ROOT not in sys.path:
+    sys.path.insert(0, PLUGIN_ROOT)
 
 try:
-    from hookify.core.config_loader import load_rules
-    from hookify.core.rule_engine import RuleEngine
+    from core.config_loader import load_rules
+    from core.rule_engine import RuleEngine
 except ImportError as e:
     # If imports fail, allow operation and log error
     error_msg = {"systemMessage": f"Hookify import error: {e}"}
diff --git a/plugins/hookify/hooks/stop.py b/plugins/hookify/hooks/stop.py
index fc299bc696..bb2982513d 100755
--- a/plugins/hookify/hooks/stop.py
+++ b/plugins/hookify/hooks/stop.py
@@ -9,18 +9,15 @@
 import sys
 import json
 
-# CRITICAL: Add plugin root to Python path for imports
-PLUGIN_ROOT = os.environ.get('CLAUDE_PLUGIN_ROOT')
-if PLUGIN_ROOT:
-    parent_dir = os.path.dirname(PLUGIN_ROOT)
-    if parent_dir not in sys.path:
-        sys.path.insert(0, parent_dir)
-    if PLUGIN_ROOT not in sys.path:
-        sys.path.insert(0, PLUGIN_ROOT)
+# Derive plugin root from this file's location (hooks/ -> plugin root)
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+PLUGIN_ROOT = os.path.dirname(SCRIPT_DIR)
+if PLUGIN_ROOT not in sys.path:
+    sys.path.insert(0, PLUGIN_ROOT)
 
 try:
-    from hookify.core.config_loader import load_rules
-    from hookify.core.rule_engine import RuleEngine
+    from core.config_loader import load_rules
+    from core.rule_engine import RuleEngine
 except ImportError as e:
     error_msg = {"systemMessage": f"Hookify import error: {e}"}
     print(json.dumps(error_msg), file=sys.stdout)
diff --git a/plugins/hookify/hooks/userpromptsubmit.py b/plugins/hookify/hooks/userpromptsubmit.py
index 28ee51fdf3..5407c0cb02 100755
--- a/plugins/hookify/hooks/userpromptsubmit.py
+++ b/plugins/hookify/hooks/userpromptsubmit.py
@@ -9,18 +9,15 @@
 import sys
 import json
 
-# CRITICAL: Add plugin root to Python path for imports
-PLUGIN_ROOT = os.environ.get('CLAUDE_PLUGIN_ROOT')
-if PLUGIN_ROOT:
-    parent_dir = os.path.dirname(PLUGIN_ROOT)
-    if parent_dir not in sys.path:
-        sys.path.insert(0, parent_dir)
-    if PLUGIN_ROOT not in sys.path:
-        sys.path.insert(0, PLUGIN_ROOT)
+# Derive plugin root from this file's location (hooks/ -> plugin root)
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+PLUGIN_ROOT = os.path.dirname(SCRIPT_DIR)
+if PLUGIN_ROOT not in sys.path:
+    sys.path.insert(0, PLUGIN_ROOT)
 
 try:
-    from hookify.core.config_loader import load_rules
-    from hookify.core.rule_engine import RuleEngine
+    from core.config_loader import load_rules
+    from core.rule_engine import RuleEngine
 except ImportError as e:
     error_msg = {"systemMessage": f"Hookify import error: {e}"}
     print(json.dumps(error_msg), file=sys.stdout)