import_session · MCPEmulate MCP: Risk & Policy

WHAT IT DOES

What import_session does on MCPEmulate

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

WHY IT NEEDS A POLICY

Why import_session needs a policy

This tool writes emulation state (registers, memory, breakpoints, symbols) into a new session context. While it does not permanently delete data or execute arbitrary code directly, it modifies the active session configuration, making it a Write operation.

From the tool's definition The tool 'import_session' imports session state, which creates or modifies emulation session data. The description indicates it loads state into 'a new session', suggesting data creation/modification rather than retrieval alone.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

import_session Rate-limited

import_session 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": {
    "import_session": {
      "limits": [
        {
          "counter": "import_session_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 MCPEmulate, so you can run agents against it safely.

FAQ

Questions about import_session

What does the import_session tool do? +

Import session state into a new session. It is categorised as a Write tool in the MCPEmulate MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on import_session? +

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

What risk level is import_session? +

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

Can I rate-limit import_session? +

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

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

import_session is provided by the MCPEmulate MCP server (labguy94/mcpemulate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.