diff --git a/ai_tool/models/ai_tool.py b/ai_tool/models/ai_tool.py
index 82068020..2cfb52c6 100644
--- a/ai_tool/models/ai_tool.py
+++ b/ai_tool/models/ai_tool.py
@@ -37,7 +37,10 @@ class AiTool(models.Model):
     )
 
     def _get_tool_definition(self):
-        func = getattr(self.env[self.model_id.model], self.function_name)
+        # model_id points to ir.model, which non-admin users cannot read.
+        # The model name is only metadata, so resolve it as sudo.
+        model = self.sudo().model_id.model
+        func = getattr(self.env[model], self.function_name)
         return {
             "name": self.name,
             "description": self.description,
@@ -77,18 +80,20 @@ def _ai_post_message_parse_body(self, message):
         return plaintext2html(message)
 
     def _execute_tool(self, *args, record=None, **kwargs):
+        # model_id points to ir.model, which non-admin users cannot read.
+        # Resolve the model name as sudo (metadata only); the call below
+        # still runs with the caller's own rights via self.env[model].
+        model = self.sudo().model_id.model
         if self.kind == "generic":
-            return getattr(self.env[self.model_id.model], self.function_name)(
-                *args, **kwargs
-            )
+            return getattr(self.env[model], self.function_name)(*args, **kwargs)
         if not record:
             raise ValueError("Record must be provided for non-generic tools")
         if self.kind == "generic_model":
-            return getattr(self.env[self.model_id.model], self.function_name)(
+            return getattr(self.env[model], self.function_name)(
                 *args, record=record, **kwargs
             )
-        elif record._name != self.model_id.model:
+        elif record._name != model:
             raise ValueError(
-                f"Record model {record._name} does not match tool model {self.model_id.model}"
+                f"Record model {record._name} does not match tool model {model}"
             )
         return getattr(record, self.function_name)(*args, **kwargs) or {}
diff --git a/ai_tool/tests/test_ai_tool.py b/ai_tool/tests/test_ai_tool.py
index c9090aaf..86c1d991 100644
--- a/ai_tool/tests/test_ai_tool.py
+++ b/ai_tool/tests/test_ai_tool.py
@@ -47,3 +47,21 @@ def test_post_message_tool_record_different_model(self):
         tool.kind = "record"
         with self.assertRaises(ValueError):
             tool._execute_tool(message="Hello World", record=self.partner)
+
+    def test_tool_non_admin_user(self):
+        """A plain internal user (no ir.model access) must be able to build a
+        tool definition and execute a generic tool: resolving the tool's model
+        is metadata and must not require Administration/Access Rights."""
+        user = self.env["res.users"].create(
+            {
+                "name": "Ai Tool Plain User",
+                "login": "ai_tool_plain_user",
+                "groups_id": [(6, 0, [self.env.ref("base.group_user").id])],
+            }
+        )
+        self.assertFalse(user.has_group("base.group_system"))
+        tool = self.env.ref("ai_tool.current_date").with_user(user)
+        definition = tool._get_tool_definition()
+        self.assertEqual(definition["name"], "get_date")
+        result = tool._execute_tool()
+        self.assertIn("date", result)