userApproval

Ask the user for approval before proceeding with a sensitive action.

SERVERGenkit MCP SOURCEgenkit-ai/genkit

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/firebase-genkit/userapproval.md

WHAT IT DOES

What userApproval does on Genkit MCP

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

RISK

Why userApproval is rated Low

This is an interactive query tool that retrieves user consent/approval. While it gates sensitive actions, the tool itself performs no data modification, execution, or destruction—it only reads user input. The sensitive action being gated would be classified separately based on what that action does. The approval-asking mechanism itself is a low-risk read operation.

From the tool's definition Tool name 'userApproval' and description 'Ask the user for approval before proceeding with a sensitive action' indicates the tool queries or requests user input/confirmation. It does not modify data, execute commands, delete resources, or move money.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs userApproval safely

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

userApproval Allowed

userApproval 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": {
    "userApproval": {}
  }
}

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

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

FAQ

Questions about userApproval

What does the userApproval tool do? +

Ask the user for approval before proceeding with a sensitive action. It is categorised as a Read tool in the Genkit MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on userApproval? +

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

What risk level is userApproval? +

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

Can I rate-limit userApproval? +

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

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

userApproval is provided by the Genkit MCP server (genkit-ai/genkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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