zaim_create_income · Zaim API MCP Server MCP: Risk & Policy

WHAT IT DOES

What zaim_create_income does on Zaim API MCP Server

AI agents use zaim_create_income to create or update resources in Zaim API MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Zaim API MCP Server environment.

WHY IT NEEDS A POLICY

Why zaim_create_income needs a policy

An AI agent can call zaim_create_income faster than any human can review — one bad instruction and it creates or modifies resources in Zaim API MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

zaim_create_income Rate-limited

zaim_create_income 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": {
    "zaim_create_income": {
      "limits": [
        {
          "counter": "zaim_create_income_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 Zaim API MCP Server, so you can run agents against it safely.

FAQ

Questions about zaim_create_income

What does the zaim_create_income tool do? +

Zaimに収入記録を作成します. It is categorised as a Write tool in the Zaim API MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on zaim_create_income? +

Register the Zaim API MCP Server MCP server in PolicyLayer and add a rule for zaim_create_income: 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 Zaim API MCP Server. Nothing to install.

What risk level is zaim_create_income? +

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

Can I rate-limit zaim_create_income? +

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

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

zaim_create_income is provided by the Zaim API MCP Server MCP server (yone-k/zaim-api-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.