dbQuery · Antigravity MCP Server MCP: Risk & Policy

WHAT IT DOES

What dbQuery does on Antigravity MCP Server

AI agents invoke dbQuery to trigger actions in Antigravity 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 dbQuery needs a policy

Although the description claims only SELECT and STATS queries are supported (no writes or deletes), the tool executes dynamic query strings against a database engine. This is an Execute-category action because query logic depends on arguments and could include analytical operations beyond simple data retrieval.

From the tool's definition 'Execute analytical SELECT and STATS queries against the enterprise relational mock database' — the word 'Execute' and acceptance of arbitrary query strings indicate code/query execution, not a simple fixed read.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

dbQuery Rate-limited

dbQuery 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": {
    "dbQuery": {
      "limits": [
        {
          "counter": "dbquery_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 Antigravity MCP Server, so you can run agents against it safely.

FAQ

Questions about dbQuery

What does the dbQuery tool do? +

Execute analytical SELECT and STATS queries against the enterprise relational mock database. It is categorised as a Execute tool in the Antigravity 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 dbQuery? +

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

What risk level is dbQuery? +

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

Can I rate-limit dbQuery? +

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

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

dbQuery is provided by the Antigravity MCP Server MCP server (musadev147/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.