mysqlsh_import_json

Import JSON documents from a file using util.importJson(). Supports NDJSON (one JSON object per line) and multi-line JSON objects (not JSON arrays). REQUIRES X Protocol (port 33060).

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

Medium RISK CLASS

Category Write

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-import-json.md

WHAT IT DOES

What mysqlsh_import_json does on Mysql Mcp

AI agents use mysqlsh_import_json to create or update resources in Mysql Mcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mysql Mcp environment.

RISK

Why mysqlsh_import_json is rated Medium

This tool writes/creates data by importing JSON into MySQL. While not destructive (no deletion), it modifies the database by adding or loading document data. The severity is high because an attacker could import malicious JSON that violates schema constraints, triggers unexpected application logic, or consumes excessive storage/memory.

From the tool's definition Tool imports JSON documents from a file, which creates or loads new data into the database via util.importJson(). The description explicitly states it 'Import[s] JSON documents from a file', indicating data ingestion that modifies the database state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mysqlsh_import_json 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_import_json, this is the rule to start with:

mysqlsh_import_json Rate-limited

mysqlsh_import_json stays usable, but capped: an agent stuck in a loop can't make hundreds of changes 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_import_json": {
      "limits": [
        {
          "counter": "mysqlsh_import_json_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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_import_json call is checked against it from then on.

FAQ

Questions about mysqlsh_import_json

What does the mysqlsh_import_json tool do? +

Import JSON documents from a file using util.importJson(). Supports NDJSON (one JSON object per line) and multi-line JSON objects (not JSON arrays). REQUIRES X Protocol (port 33060). It is categorised as a Write tool in the Mysql Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mysqlsh_import_json? +

Register the Mysql MCP server in PolicyLayer and add a rule for mysqlsh_import_json: 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_import_json? +

mysqlsh_import_json is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit mysqlsh_import_json? +

Yes. Add a rate_limit block to the mysqlsh_import_json 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_import_json completely? +

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

mysqlsh_import_json 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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