batch_execute · MySQL MCP Server MCP: Risk & Policy

WHAT IT DOES

What batch_execute does on MySQL MCP Server

AI agents invoke batch_execute to trigger actions in MySQL 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 batch_execute needs a policy

This tool executes SQL queries in batch with transaction support. While the sibling context (presence of insert, delete, create_table, etc.) shows this server handles multiple operations, 'batch_execute' itself is classified as Execute rather than Write or Destructive because: (1) the description emphasizes transaction batching and rollback behavior rather than a specific operation type, suggesting it can execute…

From the tool's definition Tool name 'batch_execute' combined with description '事务批量 SQL，失败回滚' (transaction batch SQL with rollback on failure) indicates execution of arbitrary SQL statements in batches with transaction semantics.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

batch_execute Rate-limited

batch_execute 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": {
    "batch_execute": {
      "limits": [
        {
          "counter": "batch_execute_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 MySQL MCP Server, so you can run agents against it safely.

FAQ

Questions about batch_execute

What does the batch_execute tool do? +

事务批量 SQL，失败回滚，≤${MAX_BATCH_SIZE} 条. It is categorised as a Execute tool in the MySQL 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 batch_execute? +

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

What risk level is batch_execute? +

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

Can I rate-limit batch_execute? +

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

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

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