mysql_regexp_match

Find rows where column matches a regular expression pattern.

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-regexp-match.md

WHAT IT DOES

What mysql_regexp_match does on Mysql Mcp

AI agents call mysql_regexp_match 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_regexp_match is rated Low

This tool searches and filters rows based on regex pattern matching. It is purely a retrieval operation with no side effects—no data is created, modified, deleted, or executed. The 'Find rows' language explicitly indicates a read-only query. While regex patterns could theoretically be complex, the tool itself poses minimal risk as a standalone read operation.

From the tool's definition Tool name 'mysql_regexp_match' and description 'Find rows where column matches a regular expression pattern' indicate a query operation that retrieves matching data without modifying any state.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

mysql_regexp_match Allowed

mysql_regexp_match 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_regexp_match": {}
  }
}

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_regexp_match call is checked against it from then on.

FAQ

Questions about mysql_regexp_match

What does the mysql_regexp_match tool do? +

Find rows where column matches a regular expression pattern. 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_regexp_match? +

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

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

Can I rate-limit mysql_regexp_match? +

Yes. Add a rate_limit block to the mysql_regexp_match 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_regexp_match completely? +

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

mysql_regexp_match 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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