wait-for-transaction-receipt · MCPilot MCP: Risk & Policy

WHAT IT DOES

What wait-for-transaction-receipt does on MCPilot

AI agents invoke wait-for-transaction-receipt to trigger actions in MCPilot. 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 wait-for-transaction-receipt needs a policy

wait-for-transaction-receipt triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

wait-for-transaction-receipt Rate-limited

wait-for-transaction-receipt 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": {
    "wait-for-transaction-receipt": {
      "limits": [
        {
          "counter": "wait-for-transaction-receipt_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 MCPilot, so you can run agents against it safely.

FAQ

Questions about wait-for-transaction-receipt

What does the wait-for-transaction-receipt tool do? +

Waits for the transaction to be included on a block, and then returns the transaction receipt. It is categorised as a Execute tool in the MCPilot MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on wait-for-transaction-receipt? +

Register the MCPilot MCP server in PolicyLayer and add a rule for wait-for-transaction-receipt: 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 MCPilot. Nothing to install.

What risk level is wait-for-transaction-receipt? +

wait-for-transaction-receipt is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit wait-for-transaction-receipt? +

Yes. Add a rate_limit block to the wait-for-transaction-receipt 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 wait-for-transaction-receipt completely? +

Set action: deny in the PolicyLayer policy for wait-for-transaction-receipt. 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 wait-for-transaction-receipt? +

wait-for-transaction-receipt is provided by the MCPilot MCP server (xiawpohr/mcpilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.