postgres-get-table-details · Mcp Gmail MCP: Risk & Policy

WHAT IT DOES

What postgres-get-table-details does on Mcp Gmail

AI agents call postgres-get-table-details to retrieve information from Mcp Gmail without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why postgres-get-table-details needs a policy

Despite the empty description lowering confidence, the name clearly denotes a read operation that queries table structure from a PostgreSQL database. This is consistent with Read category semantics (retrieves data, no side effects). The low severity reflects minimal blast radius—schema metadata exposure poses lesser risk than data or structural changes.

From the tool's definition Tool name 'postgres-get-table-details' indicates retrieval of database schema/metadata information with the 'get' verb and 'details' suffix, suggesting a read operation with no side effects.

Attacks that exploit this kind of access

Questions about postgres-get-table-details

What does the postgres-get-table-details tool do? +

postgres-get-table-details. It is categorised as a Read tool in the Mcp Gmail MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on postgres-get-table-details? +

Register the Mcp Gmail MCP server in PolicyLayer and add a rule for postgres-get-table-details: 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 Gmail. Nothing to install.

What risk level is postgres-get-table-details? +

postgres-get-table-details is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit postgres-get-table-details? +

Yes. Add a rate_limit block to the postgres-get-table-details 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.

How do I block postgres-get-table-details completely? +

Set action: deny in the PolicyLayer policy for postgres-get-table-details. 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.

What MCP server provides postgres-get-table-details? +

postgres-get-table-details is provided by the Mcp Gmail MCP server (@monsoft/mcp-gmail). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.