compare_schemas

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/compare-schemas.md

WHAT IT DOES

What compare_schemas does on Mcpg

AI agents call compare_schemas 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 compare_schemas is rated Low

Schema comparison is fundamentally a read operation that retrieves and contrasts database structure metadata without modifying or executing code. Given the sibling tools are predominantly analytical (analyze_*, add_*policy), this tool likely follows that read/analyze pattern.

From the tool's definition Tool name 'compare_schemas' indicates a schema comparison operation, typical of read-only inspection tools. No description provided to confirm scope.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

compare_schemas Allowed

compare_schemas 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": {
    "compare_schemas": {}
  }
}

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 compare_schemas call is checked against it from then on.

FAQ

Questions about compare_schemas

What does the compare_schemas tool do? +

compare_schemas 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 compare_schemas? +

Register the Mcpg MCP server in PolicyLayer and add a rule for compare_schemas: 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 compare_schemas? +

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

Can I rate-limit compare_schemas? +

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

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

compare_schemas 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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