docs: openid auto set

Author: Areo-Joe

config/.claude/skills/http-api/SKILL.md

@@ -244,6 +244,8 @@ curl -X GET 'https://your-env.api.tcloudbasegateway.com/v1/rdb/rest/course?selec
 
 **Request Body**: JSON object or array of objects
 
+> 💡 **Note about `_openid`**: When a user is logged in (using AccessToken authentication), the `_openid` field is **automatically populated by the server** with the current user's identity. You do NOT need to manually set this field in INSERT operations - the server will fill it automatically based on the authenticated user's session.
+
 **Example**:
 
 ```bash

config/.claude/skills/relational-database-tool/SKILL.md

@@ -70,6 +70,8 @@ Call this through the MCP tool instead of embedding SQL in code.
 _openid VARCHAR(64) DEFAULT '' NOT NULL
 ```
 
+> 💡 **Note about `_openid`**: When a user is logged in, the `_openid` field is **automatically populated by the server** with the current user's identity. You do NOT need to manually set this field in INSERT operations - the server will fill it automatically based on the authenticated user's session.
+
 Before calling this tool, **confirm**:
 
 - The target tables and conditions are correct.