sessions_set_app_action_param · CyPerf MCP Server MCP

WHAT IT DOES

What sessions_set_app_action_param does on CyPerf MCP Server

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

WHY IT NEEDS A POLICY

Why sessions_set_app_action_param needs a policy

The 'set' verb in the tool name implies a write/modification operation — updating a parameter value for an application action within a session. This is likely reversible (parameters can be changed again), placing it in the Write category. However, the description is empty, which lowers confidence.

From the tool's definition Tool name 'sessions_set_app_action_param' suggests setting/modifying a parameter on a session's application action.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sessions_set_app_action_param Rate-limited

sessions_set_app_action_param 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": {
    "sessions_set_app_action_param": {
      "limits": [
        {
          "counter": "sessions_set_app_action_param_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about sessions_set_app_action_param

What does the sessions_set_app_action_param tool do? +

sessions_set_app_action_param. It is categorised as a Write tool in the CyPerf 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 sessions_set_app_action_param? +

Register the CyPerf MCP Server MCP server in PolicyLayer and add a rule for sessions_set_app_action_param: 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 CyPerf MCP Server. Nothing to install.

What risk level is sessions_set_app_action_param? +

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

Can I rate-limit sessions_set_app_action_param? +

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

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

sessions_set_app_action_param is provided by the CyPerf MCP Server MCP server (keysight/cyperf-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.