vote_witness · Tron MCP: Risk & Policy

WHAT IT DOES

What vote_witness does on Tron

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

PARAMETERS

Parameter	Type	Required	Description
`votes`	array	Yes	List of SR addresses and vote counts
`network`	string	—	Network name. Defaults to mainnet.

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why vote_witness needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vote_witness Rate-limited

vote_witness 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": {
    "vote_witness": {
      "limits": [
        {
          "counter": "vote_witness_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 Tron, so you can run agents against it safely.

FAQ

Questions about vote_witness

What does the vote_witness tool do? +

Vote for Super Representatives using TRON Power (obtained by freezing TRX). Each frozen TRX = 1 vote. It is categorised as a Write tool in the Tron MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does vote_witness accept? +

vote_witness accepts 2 parameters: votes, network. Required: votes. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on vote_witness? +

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

What risk level is vote_witness? +

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

Can I rate-limit vote_witness? +

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

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

vote_witness is provided by the Tron MCP server (@bankofai/mcp-server-tron). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.