postgres_get_table_sample
AI agents call postgres_get_table_sample to retrieve information from MCP Server Project without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name strongly implies a read-only operation that retrieves sample rows from a database table. Despite the empty description, the naming convention and context from sibling Read tools support a Read classification. However, confidence is moderate (0.75) because the empty description prevents explicit confirmation of whether this could support destructive operations or have hidden side effects.
From the tool's definition Tool name 'postgres_get_table_sample' indicates retrieval of sample data from a table. Sibling tools (postgres_describe_table, postgres_list_tables) are all Read operations, suggesting this follows the same pattern.
Attacks that exploit this kind of access
postgres_get_table_sample. It is categorised as a Read tool in the MCP Server Project MCP Server, which means it retrieves data without modifying state.
Register the MCP Server Project MCP server in PolicyLayer and add a rule for postgres_get_table_sample: 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 Project. Nothing to install.
postgres_get_table_sample 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 postgres_get_table_sample 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 postgres_get_table_sample. 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.
postgres_get_table_sample is provided by the MCP Server Project MCP server (jamesunlocked/mcp_projects). 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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