session_set_name · It2 MCP: Risk & Policy

WHAT IT DOES

What session_set_name does on It2mcp

AI agents use session_set_name to create or update resources in It2mcp — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your It2mcp environment.

WHY IT NEEDS A POLICY

Why session_set_name needs a policy

This is a reversible write operation that modifies iTerm2 session metadata (the session name). It does not execute arbitrary code, delete data, or create financial obligations. While it is an Write action affecting application state, the scope is narrowly limited to renaming a session, which is a low-risk operation with minimal blast radius even if misused by an agent.

From the tool's definition Tool performs 'Set the name of an iTerm2 session' — a metadata modification that creates or updates a session property without deleting data or executing terminal commands.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

session_set_name Rate-limited

session_set_name 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": {
    "session_set_name": {
      "limits": [
        {
          "counter": "session_set_name_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 It2mcp, so you can run agents against it safely.

FAQ

Questions about session_set_name

What does the session_set_name tool do? +

Set the name of an iTerm2 session. It is categorised as a Write tool in the It2mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on session_set_name? +

Register the It2 MCP server in PolicyLayer and add a rule for session_set_name: 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 It2mcp. Nothing to install.

What risk level is session_set_name? +

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

Can I rate-limit session_set_name? +

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

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

session_set_name is provided by the It2 MCP server (urjitbhatia/it2mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.