diff --git a/SKILL.md b/SKILL.md
index 86a3f58..b76f6a7 100644
--- a/SKILL.md
+++ b/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: 账号与凭据管理
 description: "通用账号 & 凭据 & 登录流程管理器。管理网页/RPA 账号、API Key/Token；支持 9 种登录策略（账密自动、扫码、2FA、SSO 等）；提供加密本地存储（Fernet）；提供 rpa_helpers 库供业务 skill 同进程调用 ensure_logged_in 完成多平台自动登录。涵盖物流、LLM、内容、开发、API 五类平台。"
-version: 2.0.17
+version: 2.0.18
 author: 深圳匠厂科技有限公司
 metadata:
   openclaw:
diff --git a/scripts/db/display_metadata.py b/scripts/db/display_metadata.py
index 657f039..c75ca47 100644
--- a/scripts/db/display_metadata.py
+++ b/scripts/db/display_metadata.py
@@ -6,6 +6,7 @@ SQLite 无原生表/字段 COMMENT；中文展示名称通过这两张元数据
 
 from __future__ import annotations
 
+import json
 from typing import Iterable
 
 INTERNAL_METADATA_TABLES = frozenset({"_jiangchang_tables", "_jiangchang_columns"})
@@ -20,6 +21,26 @@ ACCOUNT_LEASES_TABLE = "account_leases"
 DATETIME_UNIX_SECONDS = "datetime_unix_seconds"
 STANDARD_TIMESTAMP_COLUMNS = frozenset({"created_at", "updated_at"})
 
+# Data-management lookup: host resolves options_json object into select options.
+PLATFORM_KEY_LOOKUP_JSON = json.dumps(
+    {
+        "ref_table": "platforms",
+        "value_column": "platform_key",
+        "label_column": "display_name",
+        "filter_column": "enabled",
+        "filter_value": 1,
+    },
+    ensure_ascii=False,
+)
+ACCOUNT_ID_LOOKUP_JSON = json.dumps(
+    {
+        "ref_table": "accounts",
+        "value_column": "id",
+        "label_column": "account_label",
+    },
+    ensure_ascii=False,
+)
+
 USER_BUSINESS_TABLES = (
     PLATFORMS_TABLE,
     ACCOUNTS_TABLE,
@@ -123,7 +144,13 @@ ACCOUNTS_TABLE_METADATA = {
 
 ACCOUNTS_COLUMN_METADATA: tuple[dict[str, object], ...] = (
     _col("id", "编号", description="账号唯一编号", editable=0),
-    _col("platform_key", "平台", description="所属平台键"),
+    _col(
+        "platform_key",
+        "平台",
+        description="所属平台键（来自平台信息表）",
+        display_type="lookup",
+        options_json=PLATFORM_KEY_LOOKUP_JSON,
+    ),
     _col("account_label", "账号名称", description="人可读的账号名称"),
     _col("login_id", "登录账号", description="手机号、邮箱、用户名等登录标识"),
     _col("login_id_type", "登录标识类型", description="phone / email / username / unknown 等"),
@@ -158,8 +185,20 @@ CREDENTIALS_TABLE_METADATA = {
 
 CREDENTIALS_COLUMN_METADATA: tuple[dict[str, object], ...] = (
     _col("id", "编号", description="凭据唯一编号", editable=0),
-    _col("account_id", "账号编号", description="关联的 accounts.id，可空"),
-    _col("platform_key", "平台", description="所属平台键"),
+    _col(
+        "account_id",
+        "账号编号",
+        description="关联的 accounts.id，可空",
+        display_type="lookup",
+        options_json=ACCOUNT_ID_LOOKUP_JSON,
+    ),
+    _col(
+        "platform_key",
+        "平台",
+        description="所属平台键（来自平台信息表）",
+        display_type="lookup",
+        options_json=PLATFORM_KEY_LOOKUP_JSON,
+    ),
     _col("credential_label", "凭据名称", description="人可读的凭据名称"),
     _col("credential_type", "凭据类型", description="api_key / password / bearer_token 等"),
     _col("secret_storage", "密钥存储方式", description="none / env / windows_credential / local_encrypted", editable=0),
diff --git a/tests/test_display_metadata.py b/tests/test_display_metadata.py
index 53f7a14..16af299 100644
--- a/tests/test_display_metadata.py
+++ b/tests/test_display_metadata.py
@@ -102,6 +102,44 @@ def test_sensitive_credential_fields_not_editable(metadata_db):
             assert int(searchable) == 0, column_name
 
 
+def test_account_and_credential_platform_lookups(metadata_db):
+    import json
+
+    cur = metadata_db.cursor()
+    for table_name, column_name in (
+        (ACCOUNTS_TABLE, "platform_key"),
+        (CREDENTIALS_TABLE, "platform_key"),
+    ):
+        cur.execute(
+            """
+            SELECT display_type, options_json
+            FROM _jiangchang_columns
+            WHERE table_name = ? AND column_name = ?
+            """,
+            (table_name, column_name),
+        )
+        display_type, options_json = cur.fetchone()
+        assert display_type == "lookup", table_name
+        payload = json.loads(options_json)
+        assert payload["ref_table"] == "platforms"
+        assert payload["value_column"] == "platform_key"
+        assert payload["label_column"] == "display_name"
+
+    cur.execute(
+        """
+        SELECT display_type, options_json
+        FROM _jiangchang_columns
+        WHERE table_name = ? AND column_name = 'account_id'
+        """,
+        (CREDENTIALS_TABLE,),
+    )
+    display_type, options_json = cur.fetchone()
+    assert display_type == "lookup"
+    payload = json.loads(options_json)
+    assert payload["ref_table"] == "accounts"
+    assert payload["value_column"] == "id"
+
+
 def test_lease_token_not_editable(metadata_db):
     cur = metadata_db.cursor()
     cur.execute(