bus · iTerm MCP: Risk & Policy

WHAT IT DOES

What bus does on iTerm MCP

AI agents call bus as a supporting operation in iTerm MCP workflows.

WHY IT NEEDS A POLICY

Why bus needs a policy

The description is empty and the name 'bus' is ambiguous — it could refer to a message bus, event bus, or inter-process communication mechanism. Given the server context (iTerm2, orchestration, multi-agent), it might relay messages between agents/sessions, which could be Write or Execute.

From the tool's definition Tool name is 'bus' with an empty description. No information about what it does is available.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bus Rate-limited

bus gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bus": {
      "limits": [
        {
          "counter": "bus_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about bus

What does the bus tool do? +

bus. It is categorised as a Other tool in the iTerm MCP MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on bus? +

Register the iTerm MCP server in PolicyLayer and add a rule for bus: 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 iTerm MCP. Nothing to install.

What risk level is bus? +

bus is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit bus? +

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

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

bus is provided by the iTerm MCP server (research-developer/iterm-mcp-claude-agency). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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