get_compact_schema

A read tool on the Mcpg MCP server.

SERVERMcpg SOURCEpypi:mcpg

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-devopam-mcpg/get-compact-schema.md

WHAT IT DOES

What get_compact_schema does on Mcpg

AI agents call get_compact_schema 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.

RISK

Why get_compact_schema is rated Low

The tool name strongly suggests a schema inspection/retrieval operation typical of Read category tools. It retrieves database schema metadata in a compact form without side effects. The empty description prevents full certainty, but the naming convention and context of a PostgreSQL MCP server support classification as a non-destructive data retrieval operation.

From the tool's definition Tool name 'get_compact_schema' indicates retrieval of schema information with no modification capability. The prefix 'get_' is characteristic of read operations. Description is empty, lowering confidence slightly.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

get_compact_schema Allowed

get_compact_schema is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcpg, apply this rule, and every get_compact_schema call is checked against it from then on.

FAQ

Questions about get_compact_schema

What does the get_compact_schema tool do? +

get_compact_schema is a read tool on the Mcpg MCP server. It is categorised as a Read tool in the Mcpg MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_compact_schema? +

Register the Mcpg MCP server in PolicyLayer and add a rule for get_compact_schema: 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 Mcpg. Nothing to install.

What risk level is get_compact_schema? +

get_compact_schema is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_compact_schema? +

Yes. Add a rate_limit block to the get_compact_schema 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 get_compact_schema completely? +

Set action: deny in the PolicyLayer policy for get_compact_schema. 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 get_compact_schema? +

get_compact_schema is provided by the Mcpg MCP server (pypi:mcpg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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