execute_write · Enhanced MCP Server MCP: Risk & Policy

WHAT IT DOES

What execute_write does on Enhanced MCP Server

AI agents invoke execute_write to trigger actions in Enhanced 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 execute_write needs a policy

This tool runs arbitrary SQL write operations including DELETE, which is potentially destructive and irreversible. Because it accepts INSERT, UPDATE, and DELETE, the most severe applicable category is Execute (with Destructive risk from DELETE). An AI agent misusing this could wipe or corrupt significant data, warranting critical severity.

From the tool's definition 'Execute INSERT, UPDATE, or DELETE queries. Use for modifying data.'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

execute_write Rate-limited

execute_write 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": {
    "execute_write": {
      "limits": [
        {
          "counter": "execute_write_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 Enhanced MCP Server, so you can run agents against it safely.

FAQ

Questions about execute_write

What does the execute_write tool do? +

Execute INSERT, UPDATE, or DELETE queries. Use for modifying data. It is categorised as a Execute tool in the Enhanced 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 execute_write? +

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

What risk level is execute_write? +

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

Can I rate-limit execute_write? +

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

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

execute_write is provided by the Enhanced MCP Server MCP server (pbulbule13/mcpwithgoogle). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.