bbs_auto_learn_menus · Mcp Bbs MCP: Risk & Policy

WHAT IT DOES

What bbs_auto_learn_menus does on Mcp Bbs

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

WHY IT NEEDS A POLICY

Why bbs_auto_learn_menus needs a policy

This tool modifies stored rules/configuration for menu learning behavior. While reversible (rules can be updated again), it has potentially high blast radius if an AI agent sets malicious menu rules that cause the BBS client to misinterpret screens, navigate incorrectly, or trigger unintended actions on legacy systems.

From the tool's definition Tool description states 'Set auto-learn menu rules from JSON' — the verb 'set' indicates modification of configuration state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bbs_auto_learn_menus Rate-limited

bbs_auto_learn_menus 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": {
    "bbs_auto_learn_menus": {
      "limits": [
        {
          "counter": "bbs_auto_learn_menus_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 Bbs, so you can run agents against it safely.

FAQ

Questions about bbs_auto_learn_menus

What does the bbs_auto_learn_menus tool do? +

Set auto-learn menu rules from JSON. It is categorised as a Write tool in the Mcp Bbs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on bbs_auto_learn_menus? +

Register the Mcp Bbs MCP server in PolicyLayer and add a rule for bbs_auto_learn_menus: 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 Bbs. Nothing to install.

What risk level is bbs_auto_learn_menus? +

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

Can I rate-limit bbs_auto_learn_menus? +

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

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

bbs_auto_learn_menus is provided by the Mcp Bbs MCP server (livingstaccato/mcp-bbs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.