publish_prompt · PromptingBox MCP Server MCP: Risk & Policy

WHAT IT DOES

What publish_prompt does on PromptingBox MCP Server

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

WHY IT NEEDS A POLICY

Why publish_prompt needs a policy

The tool creates new public content (publishing a prompt to a profile) which is a modification action. It is not destructive since publishing can be undone by deleting or unpublishing the prompt. Severity is medium because misuse could result in unintended public disclosure of sensitive prompt templates, but the blast radius is limited to the user's public profile and does not affect other users' data or systems.

From the tool's definition Tool description states it 'Publish a prompt to your public profile' and 'Makes it visible' — this creates or modifies publicly visible content on a user's profile. The action is reversible (can be unpublished or deleted), consistent with Write category tools.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

publish_prompt Rate-limited

publish_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": {
    "publish_prompt": {
      "limits": [
        {
          "counter": "publish_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 PromptingBox MCP Server, so you can run agents against it safely.

FAQ

Questions about publish_prompt

What does the publish_prompt tool do? +

Publish a prompt to your public profile on PromptingBox. Makes it visible at /prompt/@username/slug. Requires a username to be set. It is categorised as a Write tool in the PromptingBox 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 publish_prompt? +

Register the PromptingBox MCP Server MCP server in PolicyLayer and add a rule for publish_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 PromptingBox MCP Server. Nothing to install.

What risk level is publish_prompt? +

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

Can I rate-limit publish_prompt? +

Yes. Add a rate_limit block to the publish_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 publish_prompt completely? +

Set action: deny in the PolicyLayer policy for publish_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 publish_prompt? +

publish_prompt is provided by the PromptingBox MCP Server MCP server (promptingbox/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.