record_receipt · Pypi:mcp Agent Gate MCP: Risk & Policy

WHAT IT DOES

What record_receipt does on Pypi:mcp Agent Gate

AI agents use record_receipt to create or update resources in Pypi:mcp Agent Gate — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pypi:mcp Agent Gate environment.

WHY IT NEEDS A POLICY

Why record_receipt needs a policy

The tool writes a new receipt entry to a ledger (append/create operation). It is reversible in principle (a record is added, not deleted), and no code is executed nor money moved. The hash-chaining means entries are tamper-evident but the action itself is a data write.

From the tool's definition Append an honest, hash-chained receipt to the ledger and return it

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

record_receipt Rate-limited

record_receipt 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": {
    "record_receipt": {
      "limits": [
        {
          "counter": "record_receipt_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 Pypi:mcp Agent Gate, so you can run agents against it safely.

FAQ

Questions about record_receipt

What does the record_receipt tool do? +

Append an honest, hash-chained receipt to the ledger and return it. It is categorised as a Write tool in the Pypi:mcp Agent Gate MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on record_receipt? +

Register the Pypi:mcp Agent Gate MCP server in PolicyLayer and add a rule for record_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 Pypi:mcp Agent Gate. Nothing to install.

What risk level is record_receipt? +

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

Can I rate-limit record_receipt? +

Yes. Add a rate_limit block to the record_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 record_receipt completely? +

Set action: deny in the PolicyLayer policy for record_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 record_receipt? +

record_receipt is provided by the Pypi:mcp Agent Gate MCP server (Jott2121/agent-gate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.