mine_query_builder · AGR MCP Server MCP: Risk & Policy

WHAT IT DOES

What mine_query_builder does on AGR MCP Server

AI agents invoke mine_query_builder to trigger actions in AGR MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why mine_query_builder needs a policy

Although the server is read-oriented (genomics data retrieval), this tool accepts a flexible JSON DSL and executes it against AllianceMine. The ability to 'build and run' arbitrary structured queries introduces execution-level risk: a malformed or malicious query could trigger unintended data access patterns, resource exhaustion, or expose sensitive data beyond the intended scope.

From the tool's definition 'Build and run structured queries against AllianceMine using a JSON DSL' — the tool both constructs and executes queries using an arbitrary JSON DSL, meaning it actively runs structured queries against a database backend, not merely reading pre-defined data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mine_query_builder Rate-limited

mine_query_builder stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "mine_query_builder": {
      "limits": [
        {
          "counter": "mine_query_builder_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches AGR MCP Server, so you can run agents against it safely.

FAQ

Questions about mine_query_builder

What does the mine_query_builder tool do? +

Build and run structured queries against AllianceMine using a JSON DSL. Example query - find human genes in DNA repair pathway: {. It is categorised as a Execute tool in the AGR MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on mine_query_builder? +

Register the AGR MCP Server MCP server in PolicyLayer and add a rule for mine_query_builder: 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 AGR MCP Server. Nothing to install.

What risk level is mine_query_builder? +

mine_query_builder is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit mine_query_builder? +

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

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

mine_query_builder is provided by the AGR MCP Server MCP server (nuin/agr-mcp-server-js). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.