verify_batch · HashPilot MCP: Risk & Policy

WHAT IT DOES

What verify_batch does on HashPilot

AI agents invoke verify_batch to trigger actions in HashPilot. 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 verify_batch needs a policy

Verifying contracts on a blockchain explorer (HashScan) is an external operation that submits data to an external service and triggers processing. It is not a simple read, and while it doesn't directly move money or delete data, it executes external actions at scale (batch/parallel) against a live blockchain infrastructure.

From the tool's definition 'Batch verify multiple contracts on HashScan' with 'parallel or sequential verification' — triggers external verification operations against HashScan for multiple contracts simultaneously

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

verify_batch Rate-limited

verify_batch 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": {
    "verify_batch": {
      "limits": [
        {
          "counter": "verify_batch_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 HashPilot, so you can run agents against it safely.

FAQ

Questions about verify_batch

What does the verify_batch tool do? +

Batch verify multiple contracts on HashScan. Supports parallel or sequential verification with configurable failure handling. It is categorised as a Execute tool in the HashPilot MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on verify_batch? +

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

What risk level is verify_batch? +

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

Can I rate-limit verify_batch? +

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

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

verify_batch is provided by the HashPilot MCP server (justmert/hashpilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.