amplitude_user_activity

ONE PERSON\

SERVERHermoso SOURCEhttps://app.hermoso.ai/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/hermoso/amplitude-user-activity.md

WHAT IT DOES

What amplitude_user_activity does on Hermoso

AI agents call amplitude_user_activity to retrieve information from Hermoso without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why amplitude_user_activity is rated Low

Even though amplitude_user_activity only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs amplitude_user_activity safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For amplitude_user_activity, this is the rule to start with:

amplitude_user_activity Allowed

amplitude_user_activity is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "amplitude_user_activity": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every amplitude_user_activity call is checked against it from then on.

FAQ

Questions about amplitude_user_activity

What does the amplitude_user_activity tool do? +

ONE PERSON\. It is categorised as a Read tool in the Hermoso MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on amplitude_user_activity? +

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

What risk level is amplitude_user_activity? +

amplitude_user_activity is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit amplitude_user_activity? +

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

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

amplitude_user_activity is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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