eth_create_staking_contract · Portal MCP: Risk & Policy

WHAT IT DOES

What eth_create_staking_contract does on PortalMCP

AI agents invoke eth_create_staking_contract to trigger actions in PortalMCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why eth_create_staking_contract needs a policy

Staking contracts lock up financial assets and define reward mechanics on-chain. While this tool appears to 'generate and prepare' (rather than fully deploy), it is part of a pipeline that leads to financial smart contract deployment. The action is Execute (compiling/preparing a deployable artifact that triggers external operations) with Financial implications given the DeFi staking context.

From the tool's definition 'Generate and prepare a staking contract for deployment' — this tool generates code and prepares a contract for deployment, triggering external blockchain preparation operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

eth_create_staking_contract Rate-limited

eth_create_staking_contract stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "eth_create_staking_contract": {
      "limits": [
        {
          "counter": "eth_create_staking_contract_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches PortalMCP, so you can run agents against it safely.

FAQ

Questions about eth_create_staking_contract

What does the eth_create_staking_contract tool do? +

Generate and prepare a staking contract for deployment. It is categorised as a Execute tool in the PortalMCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on eth_create_staking_contract? +

Register the Portal MCP server in PolicyLayer and add a rule for eth_create_staking_contract: 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 PortalMCP. Nothing to install.

What risk level is eth_create_staking_contract? +

eth_create_staking_contract is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit eth_create_staking_contract? +

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

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

eth_create_staking_contract is provided by the Portal MCP server (portalfnd/portalmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.