List all tables in the LanceDB database.
AI agents call list_tables to retrieve information from LanceDB Node without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns metadata about database tables without creating, modifying, deleting, or executing any operations. It is a straightforward read operation with minimal security impact. Severity is low because even if an attacker lists all tables, the blast radius is limited to information disclosure of schema structure, which is typically non-sensitive in application design.
From the tool's definition Tool name is 'list_tables' and description states it 'List all tables in the LanceDB database' — a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List all tables in the LanceDB database. It is categorised as a Read tool in the LanceDB Node MCP Server, which means it retrieves data without modifying state.
Register the LanceDB Node MCP server in PolicyLayer and add a rule for 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 LanceDB Node. Nothing to install.
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 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 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.
list_tables is provided by the LanceDB Node MCP server (vurtnec/mcp-lancedb-node). 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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