mysqlsh_run_script

SERVERMysql Mcp SOURCEoci:docker.io/writenotenow/mysql-mcp:v1.0.0

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-neverinfamous-mysql-mcp/mysqlsh-run-script.md

WHAT IT DOES

What mysqlsh_run_script does on Mysql Mcp

AI agents invoke mysqlsh_run_script to trigger actions in Mysql Mcp. 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.

RISK

Why mysqlsh_run_script is rated High

This tool executes arbitrary scripts (JavaScript, Python, or SQL) with access to MySQL Shell's full capabilities including AdminAPI. The explicit warning that 'file access inside the script is not restricted by allowedIoRoots' demonstrates unrestricted code execution.

From the tool's definition Execute a JavaScript, Python, or SQL script via MySQL Shell. Provides access to X DevAPI, AdminAPI, and all MySQL Shell features.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mysqlsh_run_script safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mysql Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mysqlsh_run_script, this is the rule to start with:

mysqlsh_run_script Rate-limited

mysqlsh_run_script 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": {
    "mysqlsh_run_script": {
      "limits": [
        {
          "counter": "mysqlsh_run_script_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mysql Mcp, apply this rule, and every mysqlsh_run_script call is checked against it from then on.

FAQ

Questions about mysqlsh_run_script

What does the mysqlsh_run_script tool do? +

Execute a JavaScript, Python, or SQL script via MySQL Shell. Provides access to X DevAPI, AdminAPI, and all MySQL Shell features. NOTE: The script executes inside the MySQL Shell process, so file access inside the script is not restricted by allowedIoRoots. Use carefully. It is categorised as a Execute tool in the Mysql Mcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on mysqlsh_run_script? +

Register the Mysql MCP server in PolicyLayer and add a rule for mysqlsh_run_script: 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. Nothing to install.

What risk level is mysqlsh_run_script? +

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

Can I rate-limit mysqlsh_run_script? +

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

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

mysqlsh_run_script is provided by the Mysql MCP server (oci:docker.io/writenotenow/mysql-mcp:v1.0.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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