AI agents call getTotalSupply to retrieve information from Agentek Eth without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that queries blockchain data. It retrieves the total supply metric of an ERC20 token, similar to a GET request. There are no side effects, no state changes, no code execution, and no financial transactions. The blast radius of misuse is minimal—an agent could only access public token supply information.
From the tool's definition The tool description states it 'Gets the total supply of an ERC20 token' — a pure query operation that retrieves data without modifying state or executing arbitrary code.
Documented attack patterns abuse exactly the kind of access getTotalSupply gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Agentek Eth, and nothing reaches the server without passing your rules. This is the rule we recommend for getTotalSupply:
{
"version": "1",
"default": "deny",
"tools": {
"getTotalSupply": {}
}
}getTotalSupply is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Gets the total supply of an ERC20 token. It is categorised as a Read tool in the Agentek Eth MCP Server, which means it retrieves data without modifying state.
Register the Agentek Eth MCP server in PolicyLayer and add a rule for getTotalSupply: 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 Agentek Eth. Nothing to install.
getTotalSupply is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the getTotalSupply 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.
Set action: deny in the PolicyLayer policy for getTotalSupply. 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.
getTotalSupply is provided by the Agentek Eth MCP server (nanidao/agentek). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Agentek Eth, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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165 Agentek Eth tools catalogued and risk-classified — across an index of 43,000+ MCP servers.