generate_prompt · MCP Prompt Template Selector MCP

WHAT IT DOES

What generate_prompt does on MCP Prompt Template Selector

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

WHY IT NEEDS A POLICY

Why generate_prompt needs a policy

An AI agent can call generate_prompt faster than any human can review — one bad instruction and it creates or modifies resources in MCP Prompt Template Selector by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_prompt Rate-limited

generate_prompt 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": {
    "generate_prompt": {
      "limits": [
        {
          "counter": "generate_prompt_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 MCP Prompt Template Selector, so you can run agents against it safely.

FAQ

Questions about generate_prompt

What does the generate_prompt tool do? +

Generate a customized prompt based on the best matching template(s) for your task. It is categorised as a Write tool in the MCP Prompt Template Selector MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_prompt? +

Register the MCP Prompt Template Selector MCP server in PolicyLayer and add a rule for generate_prompt: 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 MCP Prompt Template Selector. Nothing to install.

What risk level is generate_prompt? +

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

Can I rate-limit generate_prompt? +

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

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

generate_prompt is provided by the MCP Prompt Template Selector MCP server (vadimber2/mcp-prompt-tool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.