prompt_builder · MCP SAPUI5 Server MCP: Risk & Policy

WHAT IT DOES

What prompt_builder does on MCP SAPUI5 Server

AI agents invoke prompt_builder to trigger actions in MCP SAPUI5 Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why prompt_builder needs a policy

prompt_builder triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

prompt_builder Rate-limited

prompt_builder stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "prompt_builder": {
      "limits": [
        {
          "counter": "prompt_builder_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 SAPUI5 Server, so you can run agents against it safely.

FAQ

Questions about prompt_builder

What does the prompt_builder tool do? +

Build complete and compact task prompts from structured intake fields with consistent output format. It is categorised as a Execute tool in the MCP SAPUI5 Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on prompt_builder? +

Register the MCP SAPUI5 Server MCP server in PolicyLayer and add a rule for prompt_builder: 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 SAPUI5 Server. Nothing to install.

What risk level is prompt_builder? +

prompt_builder is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit prompt_builder? +

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

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

prompt_builder is provided by the MCP SAPUI5 Server MCP server (santiagosanmartinn/mcpui5server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.