add_compression_policy

What add_compression_policy does on Mcpg

AI agents use add_compression_policy to create or update resources in Mcpg, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcpg environment.

Why add_compression_policy is rated Medium

The tool appears to create or register a compression policy in PostgreSQL, which modifies database configuration reversibly. This is a Write action—it creates new configuration objects but does not delete data or execute arbitrary code. Severity is medium because misconfigured compression policies could degrade performance or cause data handling issues, but the change is reversible.

From the tool's definition Tool name 'add_compression_policy' indicates creation or modification of a database policy. The prefix 'add_' and context of a PostgreSQL server suggest this creates or registers a new compression configuration. No description provided to confirm specifics.

The rule that runs add_compression_policy 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 add_compression_policy, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_compression_policy": {
      "limits": [
        {
          "counter": "add_compression_policy_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about add_compression_policy