mysql_json_contains

Find rows where JSON column contains a specified value.

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

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-neverinfamous-mysql-mcp/mysql-json-contains.md

WHAT IT DOES

What mysql_json_contains does on Mysql Mcp

AI agents call mysql_json_contains to retrieve information from Mysql Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why mysql_json_contains is rated Low

This tool retrieves or queries data by searching for rows matching a JSON condition. The verb 'Find' and the read-only nature of the operation (checking if JSON contains a value without altering it) clearly place it in the Read category. There are no side effects, no data creation, modification, deletion, or external execution involved.

From the tool's definition Tool name 'mysql_json_contains' and description 'Find rows where JSON column contains a specified value' indicate a search/query operation with no data modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

mysql_json_contains Allowed

mysql_json_contains is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "mysql_json_contains": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about mysql_json_contains

What does the mysql_json_contains tool do? +

Find rows where JSON column contains a specified value. It is categorised as a Read tool in the Mysql Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on mysql_json_contains? +

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

mysql_json_contains is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit mysql_json_contains? +

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

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

mysql_json_contains 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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