mysql_conditional_update

Update a row only if its _version matches expectedVersion. Prevents lost updates in multi-agent environments.

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/mysql-conditional-update.md

WHAT IT DOES

What mysql_conditional_update does on Mysql Mcp

AI agents use mysql_conditional_update 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 mysql_conditional_update is rated Medium

This tool creates or modifies data reversibly via a conditional UPDATE statement. While the version-checking mechanism is a safety feature, the core function remains data modification (Write), not deletion (Destructive) or code execution (Execute).

From the tool's definition Tool name and description explicitly state it "Update[s] a row" with a conditional constraint. The description indicates it modifies data ("Update") based on version matching, which is a reversible write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

mysql_conditional_update Rate-limited

mysql_conditional_update 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": {
    "mysql_conditional_update": {
      "limits": [
        {
          "counter": "mysql_conditional_update_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 mysql_conditional_update call is checked against it from then on.

FAQ

Questions about mysql_conditional_update

What does the mysql_conditional_update tool do? +

Update a row only if its _version matches expectedVersion. Prevents lost updates in multi-agent environments. 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 mysql_conditional_update? +

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

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

Can I rate-limit mysql_conditional_update? +

Yes. Add a rate_limit block to the mysql_conditional_update 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_conditional_update completely? +

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

mysql_conditional_update 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.

KEEP EXPLORING

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