AI agents call listTables to retrieve information from MCP Server Generator without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The name suggests a read-only operation that retrieves metadata about available tables without modification or deletion. No side effects are apparent. Low severity due to limited blast radius—listing tables is informational only. Confidence is 0.7 rather than higher because the description is empty and the exact data scope and access controls are unknown.
From the tool's definition Tool name 'listTables' indicates a query/retrieval operation that lists database tables. Description is empty, limiting direct confirmation.
Documented attack patterns abuse exactly the kind of access listTables gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Server Generator, and nothing reaches the server without passing your rules. This is the rule we recommend for listTables:
{
"version": "1",
"default": "deny",
"tools": {
"listTables": {}
}
}listTables is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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listTables. It is categorised as a Read tool in the MCP Server Generator MCP Server, which means it retrieves data without modifying state.
Register the MCP Server Generator MCP server in PolicyLayer and add a rule for listTables: 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 MCP Server Generator. Nothing to install.
listTables 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 listTables 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 listTables. 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.
listTables is provided by the MCP Server Generator MCP server (serhatuzbas/mcp-server-generator). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Server Generator, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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79 MCP Server Generator tools catalogued and risk-classified — across an index of 43,000+ MCP servers.