List all indexes on a table including columns, uniqueness, and index type. Args: - table (string): Table name - schema (string, optional): Schema name, defaults to DB_SCHEMA env or 'public' Returns: List of indexes with name, columns, uniqueness, and method (btree/hash/gin/gist).
AI agents call kb_list_indexes 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 |
|---|---|---|---|
table | string | Yes | Table name to list indexes for |
schema | string | — | Schema name (default: from DB_SCHEMA env or 'public') |
Parameters from the server's own tool schema.
This tool retrieves database schema metadata (index definitions) without creating, modifying, or deleting any data or indexes. It is purely informational—similar to SHOW INDEXES or querying the information_schema. No side effects or destructive actions are possible. Classified as Read with low severity since the blast radius of exposing index metadata to an agent is minimal.
From the tool's definition Tool description states it 'List[s] all indexes on a table' and returns metadata about 'name, columns, uniqueness, and method'. The tool name 'kb_list_indexes' and verb 'list' indicate a retrieval operation with no data modification.
Attacks that exploit this kind of access
List all indexes on a table including columns, uniqueness, and index type. Args: - table (string): Table name - schema (string, optional): Schema name, defaults to DB_SCHEMA env or 'public' Returns: List of indexes with name, columns, uniqueness, and method (btree/hash/gin/gist). It is categorised as a Read tool in the Kingbase MCP Server, which means it retrieves data without modifying state.
kb_list_indexes accepts 2 parameters: table, schema. Required: table. 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_indexes: 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_indexes 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_indexes 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_indexes. 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_indexes 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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