ccx_apply_parameter_group · Severalnines CCX MCP Server MCP

WHAT IT DOES

What ccx_apply_parameter_group does on Severalnines CCX MCP Server

AI agents invoke ccx_apply_parameter_group to trigger actions in Severalnines CCX MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why ccx_apply_parameter_group needs a policy

This tool triggers an external operation (a job) on a live database cluster to change its configuration. It is not a simple write of data but an execution of a configuration-change job with potentially broad impact on all connected workloads. It does not delete data (so not Destructive), but misconfiguration could cause outages or performance degradation across the cluster, warranting high severity.

From the tool's definition 'Apply a parameter group to a datastore. This creates a job on the cluster to update its database configuration.'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ccx_apply_parameter_group Rate-limited

ccx_apply_parameter_group stays usable, but rate-capped — a runaway agent can't fire it dozens of times 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_apply_parameter_group": {
      "limits": [
        {
          "counter": "ccx_apply_parameter_group_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

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_apply_parameter_group

What does the ccx_apply_parameter_group tool do? +

Apply a parameter group to a datastore. This creates a job on the cluster to update its database configuration. Blocked by protection mode (CCX_PROTECT) by default. It is categorised as a Execute tool in the Severalnines CCX MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on ccx_apply_parameter_group? +

Register the Severalnines CCX MCP Server MCP server in PolicyLayer and add a rule for ccx_apply_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_apply_parameter_group? +

ccx_apply_parameter_group is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit ccx_apply_parameter_group? +

Yes. Add a rate_limit block to the ccx_apply_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_apply_parameter_group completely? +

Set action: deny in the PolicyLayer policy for ccx_apply_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_apply_parameter_group? +

ccx_apply_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.