list_functions

What list_functions does on Mcpg

AI agents call list_functions to retrieve information from Mcpg without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why list_functions is rated Low

List operations retrieve metadata without modification, deletion, or execution of external code. This tool appears to enumerate schema objects (functions) in the PostgreSQL database, similar to information schema queries. It has no side effects and poses minimal risk if misused by an AI agent—at worst, an attacker gains knowledge of available functions.

From the tool's definition Tool name 'list_functions' indicates a retrieval operation that queries and returns a list of available functions. The name follows the 'list' pattern, which is a standard Read category indicator. No description provided, but the naming convention is clear.

The rule that runs list_functions safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcpg, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_functions, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_functions": {}
  }
}

Questions about list_functions