ccx_update_parameter_group · Severalnines CCX MCP Server MCP

WHAT IT DOES

What ccx_update_parameter_group does on Severalnines CCX MCP Server

AI agents use ccx_update_parameter_group to create or update resources in Severalnines CCX MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Severalnines CCX MCP Server environment.

WHY IT NEEDS A POLICY

Why ccx_update_parameter_group needs a policy

This tool creates or modifies database configuration settings reversibly. While parameter changes affect running systems, they are typically revertible by updating the parameters again. The high severity reflects that misconfigured parameters could degrade database performance, cause service disruption, or introduce security misconfigurations (e.g., weak password hashing algorithms, disabled SSL).

From the tool's definition 'Update a parameter group' - modifies database configuration parameters that affect cluster behavior and performance.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ccx_update_parameter_group Rate-limited

ccx_update_parameter_group 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": {
    "ccx_update_parameter_group": {
      "limits": [
        {
          "counter": "ccx_update_parameter_group_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Severalnines CCX MCP Server, so you can run agents against it safely.

FAQ

Questions about ccx_update_parameter_group

What does the ccx_update_parameter_group tool do? +

Update a parameter group. It is categorised as a Write tool in the Severalnines CCX MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ccx_update_parameter_group? +

Register the Severalnines CCX MCP Server MCP server in PolicyLayer and add a rule for ccx_update_parameter_group: 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 Severalnines CCX MCP Server. Nothing to install.

What risk level is ccx_update_parameter_group? +

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

Can I rate-limit ccx_update_parameter_group? +

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

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

ccx_update_parameter_group is provided by the Severalnines CCX MCP Server MCP server (severalnines/ccx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.