proxychains_mode · Proxychains MCP Server MCP: Risk & Policy

WHAT IT DOES

What proxychains_mode does on Proxychains MCP Server

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

WHY IT NEEDS A POLICY

Why proxychains_mode needs a policy

This tool modifies proxy chain configuration settings reversibly—an operator can change the mode at any time without permanent data loss. It does not execute commands (Execute), delete anything (Destructive), or move money (Financial). It is a configuration Write operation.

From the tool's definition Tool 'proxychains_mode' sets (modifies) the chain mode configuration to one of: strict_chain, dynamic_chain, random_chain, or round_robin_chain.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

proxychains_mode Rate-limited

proxychains_mode 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": {
    "proxychains_mode": {
      "limits": [
        {
          "counter": "proxychains_mode_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 Proxychains MCP Server, so you can run agents against it safely.

FAQ

Questions about proxychains_mode

What does the proxychains_mode tool do? +

Set the chain mode. strict_chain: all proxies must work. dynamic_chain: skip dead proxies. random_chain: random order. round_robin_chain: rotate through proxies. It is categorised as a Write tool in the Proxychains 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 proxychains_mode? +

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

What risk level is proxychains_mode? +

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

Can I rate-limit proxychains_mode? +

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

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

proxychains_mode is provided by the Proxychains MCP Server MCP server (schwarztim/sec-proxychains-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.