diff --git a/apps/desktop/src/lib/__tests__/database/databaseFeatureSupport.spec.ts b/apps/desktop/src/lib/__tests__/database/databaseFeatureSupport.spec.ts
index 0cb0df991a..5ac948ba2e 100644
--- a/apps/desktop/src/lib/__tests__/database/databaseFeatureSupport.spec.ts
+++ b/apps/desktop/src/lib/__tests__/database/databaseFeatureSupport.spec.ts
@@ -5,12 +5,15 @@ import { buildGetDatabaseCommentSql } from "@/lib/database/dbAdminSql";
 import {
   defaultAutoCommitForDbType,
   isSchemaAware,
+  supportsConnectionQueryActions,
   supportsConnectionScopedQueryExecution,
   supportsConnectionDatabaseBrowser,
   supportsDatabaseNameCompletion,
   supportsDatabaseSchemaQualifier,
+  supportsDatabaseSearch,
   supportsObjectBrowser,
   supportsObjectBrowserTreeNode,
+  supportsQueryExecution,
   supportsQueryTargetDatabaseListing,
   supportsQueryEditorBlockComments,
   supportsSqlInListPaste,
@@ -81,6 +84,32 @@ describe("connection-scoped query targets", () => {
   });
 });
 
+describe("connection query actions", () => {
+  it("keeps SQL query surfaces available for ordinary databases", () => {
+    expect(supportsConnectionQueryActions("mysql")).toBe(true);
+    expect(supportsConnectionQueryActions("postgres")).toBe(true);
+    expect(supportsConnectionQueryActions("redis")).toBe(true);
+    expect(supportsConnectionQueryActions(undefined)).toBe(true);
+  });
+
+  it("hides the sidebar new-query entry for specialized surfaces without a query engine", () => {
+    expect(supportsConnectionQueryActions("nacos")).toBe(false);
+    expect(supportsConnectionQueryActions("consul")).toBe(false);
+    expect(supportsConnectionQueryActions("hbase")).toBe(false);
+    expect(supportsConnectionQueryActions("zookeeper")).toBe(false);
+  });
+});
+
+describe("zookeeper query capabilities", () => {
+  it("does not advertise query execution or schema search for the kv-only agent", () => {
+    // The ZooKeeper agent exposes only kv_* operations: no list-databases or
+    // query method exists, so the manifest must not claim either capability
+    // (issue #8215: "new query" errored calling list-databases).
+    expect(supportsQueryExecution("zookeeper")).toBe(false);
+    expect(supportsDatabaseSearch("zookeeper")).toBe(false);
+  });
+});
+
 describe("database and schema qualifiers", () => {
   it.each(["sqlserver", "trino", "prestosql"] as const)("supports three-part object names for %s", (databaseType) => {
     expect(supportsDatabaseSchemaQualifier(databaseType)).toBe(true);
diff --git a/apps/desktop/src/lib/database/databaseFeatureSupport.ts b/apps/desktop/src/lib/database/databaseFeatureSupport.ts
index 0a9ca61029..a4e1650c21 100644
--- a/apps/desktop/src/lib/database/databaseFeatureSupport.ts
+++ b/apps/desktop/src/lib/database/databaseFeatureSupport.ts
@@ -112,8 +112,14 @@ export function supportsClearableQuerySchema(dbType?: DatabaseType): boolean {
   return !!dbType && CLEARABLE_QUERY_SCHEMA_TYPES.has(dbType);
 }
 
+/**
+ * ZooKeeper has no query surface: its agent implements only kv_* operations,
+ * so the sidebar "new query" flow would call list-databases and fail
+ * (issue #8215). It is excluded alongside the other specialized surfaces
+ * (nacos, consul, hbase) whose connection workbench replaces query tabs.
+ */
 export function supportsConnectionQueryActions(dbType?: DatabaseType): boolean {
-  return dbType !== "nacos" && dbType !== "consul" && dbType !== "hbase";
+  return dbType !== "nacos" && dbType !== "consul" && dbType !== "hbase" && dbType !== "zookeeper";
 }
 
 /**
diff --git a/crates/dbx-core/assets/database-drivers.manifest.json b/crates/dbx-core/assets/database-drivers.manifest.json
index 0266831cf4..87b5454f94 100644
--- a/crates/dbx-core/assets/database-drivers.manifest.json
+++ b/crates/dbx-core/assets/database-drivers.manifest.json
@@ -2446,11 +2446,11 @@
       "defaultPort": 2181,
       "supportLevel": "connect",
       "capabilities": {
-        "queryExecution": true,
+        "queryExecution": false,
         "metadataBrowse": false,
         "objectBrowser": false,
         "objectSource": false,
-        "schemaSearch": true,
+        "schemaSearch": false,
         "diagram": false,
         "tableDataEdit": false,
         "tableStructureEdit": false,
diff --git a/crates/dbx-core/tests/database_capabilities.rs b/crates/dbx-core/tests/database_capabilities.rs
index 45b05c190a..272bacac56 100644
--- a/crates/dbx-core/tests/database_capabilities.rs
+++ b/crates/dbx-core/tests/database_capabilities.rs
@@ -336,7 +336,11 @@ fn driver_manifest_declares_expected_product_capabilities() {
     assert_eq!(zookeeper.runtime_mode, "agent");
     assert_eq!(zookeeper.agent_key.as_deref(), Some("zookeeper"));
     assert_eq!(zookeeper.support_level, "connect");
-    assert!(zookeeper.capabilities.query_execution);
+    // ZooKeeper has no SQL engine and its agent implements only kv_* operations;
+    // claiming query execution or schema search made "new query" call
+    // list-databases on an agent that does not support it (issue #8215).
+    assert!(!zookeeper.capabilities.query_execution);
+    assert!(!zookeeper.capabilities.schema_search);
     assert!(zookeeper.capabilities.driver_management);
     assert!(!zookeeper.capabilities.metadata_browse);
 
diff --git a/plugins/connection-types/zookeeper.yaml b/plugins/connection-types/zookeeper.yaml
index af4d347f93..71af844bd5 100644
--- a/plugins/connection-types/zookeeper.yaml
+++ b/plugins/connection-types/zookeeper.yaml
@@ -14,11 +14,15 @@ skipTcpProbe: true
 defaultPort: 2181
 supportLevel: connect
 capabilities:
-  queryExecution: true
+  # ZooKeeper has no SQL engine and its agent exposes only kv_* operations:
+  # no list_databases or query method exists, so query execution and schema
+  # search must stay off (issue #8215: "new query" errored calling
+  # list-databases on a ZooKeeper connection).
+  queryExecution: false
   metadataBrowse: false
   objectBrowser: false
   objectSource: false
-  schemaSearch: true
+  schemaSearch: false
   diagram: false
   tableDataEdit: false
   tableStructureEdit: false