List all tables and/or views in a schema. Args: - schema (string, optional): Schema name, defaults to DB_SCHEMA env or 'public' - type ('table' | 'view' | 'all'): Filter by type (default: 'all') Returns: List of tables/views with their type, owner, and estimated row count.
AI agents call kb_list_tables to retrieve information from Kingbase without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
type | string | — | Filter by object type: 'table', 'view', or 'all' (default: 'all') |
schema | string | — | Schema name (default: from DB_SCHEMA env or 'public') |
Parameters from the server's own tool schema.
This tool only retrieves and lists schema metadata without side effects. It does not create, modify, delete, or execute any operations. The optional filtering parameters and schema selection do not change its fundamental read-only nature. The presence of sibling tools like kb_execute and kb_execute_ddl on the server does not affect this tool's classification.
From the tool's definition Tool description states 'List all tables and/or views in a schema' and returns metadata (type, owner, row count) with no modification or execution capability.
Attacks that exploit this kind of access
List all tables and/or views in a schema. Args: - schema (string, optional): Schema name, defaults to DB_SCHEMA env or 'public' - type ('table' | 'view' | 'all'): Filter by type (default: 'all') Returns: List of tables/views with their type, owner, and estimated row count. It is categorised as a Read tool in the Kingbase MCP Server, which means it retrieves data without modifying state.
kb_list_tables accepts 2 parameters: type, schema. The full parameter table on this page comes from the server's own tool schema.
Register the Kingbase MCP server in PolicyLayer and add a rule for kb_list_tables: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Kingbase. Nothing to install.
kb_list_tables is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the kb_list_tables rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for kb_list_tables. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
kb_list_tables is provided by the Kingbase MCP server (kingbase-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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