add_alert · My Portfolio MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_alert does on My Portfolio MCP Server

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

WHY IT NEEDS A POLICY

Why add_alert needs a policy

This tool creates new alert records in the portfolio system, which is a reversible write operation. It does not execute arbitrary code, delete data irreversibly, or move money.

From the tool's definition Tool name is 'add_alert' and description states 'Create a new alert', which is a create operation that modifies the alert state of the portfolio management system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_alert Rate-limited

add_alert 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": {
    "add_alert": {
      "limits": [
        {
          "counter": "add_alert_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 My Portfolio MCP Server, so you can run agents against it safely.

FAQ

Questions about add_alert

What does the add_alert tool do? +

Create a new alert. It is categorised as a Write tool in the My Portfolio 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 add_alert? +

Register the My Portfolio MCP Server MCP server in PolicyLayer and add a rule for add_alert: 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 My Portfolio MCP Server. Nothing to install.

What risk level is add_alert? +

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

Can I rate-limit add_alert? +

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

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

add_alert is provided by the My Portfolio MCP Server MCP server (udaybhasker-ub/my-portfolio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.