change_thread_priority · Plain Com MCP Server MCP

WHAT IT DOES

What change_thread_priority does on Plain Com MCP Server

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

WHY IT NEEDS A POLICY

Why change_thread_priority needs a policy

An AI agent can call change_thread_priority faster than any human can review — one bad instruction and it creates or modifies resources in Plain Com MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

change_thread_priority Rate-limited

change_thread_priority 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": {
    "change_thread_priority": {
      "limits": [
        {
          "counter": "change_thread_priority_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about change_thread_priority

What does the change_thread_priority tool do? +

Change the priority of a thread. It is categorised as a Write tool in the Plain Com 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 change_thread_priority? +

Register the Plain Com MCP Server MCP server in PolicyLayer and add a rule for change_thread_priority: 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 Plain Com MCP Server. Nothing to install.

What risk level is change_thread_priority? +

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

Can I rate-limit change_thread_priority? +

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

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

change_thread_priority is provided by the Plain Com MCP Server MCP server (tellahq/plain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.