Set or update the Tencent Cloud console cookie. AI can obtain this from the browser via Chrome DevTools MCP: document.cookie Then pass the full cookie string here.

The mc_gtk (csrfCode) value is required for cluster search (DescribeClusters API). AI can extract it from the browser's performance API: performance.getEntriesByType('resource') .find(e => e.name.includes('csrfCode=')) ?.name.match(/csrfCode=(\d+)/)?.[1] If not provided, DMC login/SQL tools will still work (they don't require mc_gtk to be valid), but find_instance_by_ip will fail.

Args: cookie: Full cookie string from the Tencent Cloud console browser tab. mc_gtk: Optional csrfCode value from the browser. Required for cluster search.

Login to a database instance via Tencent Cloud DMC. Supports both TDSQL-C (CynosDB) and TDSQL (DCDB) instances. The session is cached - subsequent calls reuse the same token without re-login, unless the token expires.

Use find_instance_by_ip to discover the instance_id and db_type, then pass the db_type value from the search results here.

Args: instance_id: Instance ID, e.g. "cynosdbmysql-xxx" or "tdsqlshard-xxx" user: Database account name, e.g. "db_user" password: Database account password (plain text) db_type: Database type - "cynosdbmysql" (TDSQL-C) or "tdsql" (TDSQL) region_id: Region ID, default 4 (Shanghai)

Returns: Login status message.

Execute a SELECT query on a logged-in database instance. Only SELECT statements are allowed (enforced by SQL validation).

Args: instance_id: Instance ID (must be logged in via login_instance first) sql: SELECT SQL statement to execute db_name: Target database name within the instance page_size: Max rows to return, default 50

Returns: Query results as formatted text.

List all databases accessible by the current logged-in account on the specified instance.

Args: instance_id: Instance ID (must be logged in)

Returns: List of database names.

List tables in a database, optionally filtered by name pattern.

Args: instance_id: Instance ID (must be logged in) db_name: Database name search: Optional table name filter (fuzzy match)

Returns: Table list with row counts and sizes.

Get detailed schema of a table: columns and DDL (CREATE TABLE statement).

Args: instance_id: Instance ID (must be logged in) db_name: Database name table_name: Table name

Returns: Column details and CREATE TABLE DDL.

List all currently active (logged-in) database instance sessions. Useful to check which instances are ready for querying.

Returns: List of active instance IDs and their session status.

Find a database instance by its internal Vip (proxy IP). Searches both TDSQL-C (CynosDB) and TDSQL (DCDB) instances.

Typical workflow:

1. Read the JDBC URL from your config file (e.g. 10.0.0.1:3306)

2. Call find_instance_by_ip("10.0.0.1", region="ap-guangzhou") to get the InstanceId

3. Call login_instance with the InstanceId (use the DbType from results, and match region_id)

4. Call execute_select

Args: ip: Internal Vip address, e.g. "10.0.0.1" region: Tencent Cloud region string, e.g. "ap-shanghai" (default), "ap-beijing", "ap-guangzhou". Must match the region where your cluster is deployed.

Returns: Matching instance info (InstanceId, Name, Vip, DbType) or "not found".